Publications (130)
Betelgeuse fainter in the sub-millimetre too: an analysis of JCMT and APEX monitoring during the recent optical minimum
Thavisha E. Dharmawardena, Steve Mairs, Peter Scicluna +5
Betelgeuse is the nearest Red Supergiant star and it underwent an unusually deep minimum at optical wavelengths during its most recent pulsation cycle. We present submillimetre obs…
Water vapor emission reveals a highly obscured, star forming nuclear region in the QSO host galaxy APM08279+5255 at z=3.9
Paul P. van der Werf, Alicia Berciano Alba, Marco Spaans +6
We present the detection of four rotational emission lines of water vapor, from energy levels Eu/k= 101 - 454 K, in the gravitationally lensed z=3.9 QSO host galaxy APM08279+5255.…
Empirical predictions for (sub-)millimeter line and continuum deep fields
Elisabete da Cunha, Fabian Walter, Roberto Decarli +11
[abridged] Modern (sub-)millimeter/radio interferometers will enable us to measure the dust and molecular gas emission from galaxies that have luminosities lower than the Milky Way…
ALMA Multi-line Imaging of the Nearby Starburst Galaxy NGC 253
David S. Meier, Fabian Walter, Alberto D. Bolatto +8
We present spatially resolved (50 pc) imaging of molecular gas species in the central kiloparsec of the nearby starburst galaxy NGC 253, based on observations taken with the…
First Detection of Ammonia in the Large Magellanic Cloud: The Kinetic Temperature of Dense Molecular Cores in N159W
Juergen Ott, Christian Henkel, Lister Staveley-Smith +1
The first detection of ammonia (NH3) is reported from the Magellanic Clouds. Using the Australia Telescope Compact Array, we present a targeted search for the (J,K) = (1,1) and (2,…
A NOEMA molecular line scan of the Hubble Deep Field North: Improved constraints on the CO luminosity functions and cosmic density of molecular gas
Leindert A. Boogaard, Roberto Decarli, Fabian Walter +9
We present measurements of the CO luminosity functions (LFs) and the evolution of the cosmic molecular gas density out to z~6 based on an 8.5 arcmin^2 spectral scan survey at 3mm o…
Physical constraints on the extended interstellar medium of the z=6.42 quasar J1148+5251: [CII] 158um, [NII] 205um and [OI] 146um observations
Romain A. Meyer, Fabian Walter, Claudia Cicone +7
We report new Northern Extended Millimeter Array (NOEMA) observations of the [CII], [NII] and [OI] atomic fine structure lines and dust continuum emission of J1148+5251, a z=6.42 q…
The Low CO Content of the Extremely Metal Poor Galaxy I Zw 18
Adam Leroy, John Cannon, Fabian Walter +2
We present sensitive molecular line observations of the metal-poor blue compact dwarf I Zw 18 obtained with the IRAM Plateau de Bure interferometer. These data constrain the CO J=1…
ALESS-JWST: Joint (sub-)kiloparsec JWST and ALMA imaging of submillimeter galaxies reveals heavily obscured bulge formation events
Jacqueline A. Hodge, Elisabete da Cunha, Sarah Kendrew +25
We present JWST NIRCam imaging targeting 13 infrared-luminous () galaxies from the ALESS survey with uniquely deep, high-resolution…
The Molecular Ridge Close to 30 Doradus in the Large Magellanic Cloud
Juergen Ott, Tony Wong, Jorge L. Pineda +9
With the ATNF Mopra telescope we are performing a survey in the 12CO(1-0) line to map the molecular gas in the Large Magellanic Cloud (LMC). For some regions we also obtained inter…
A large thermal energy reservoir in the nascent intracluster medium at a redshift of 4.3
Dazhi Zhou, Scott Chapman, Manuel Aravena +21
Most baryons in present-day galaxy clusters exist as hot gas (), forming the intracluster medium (ICM). Cosmological simulations predict th…
Imaging Atomic and Highly Excited Molecular Gas in a z=6.42 Quasar Host Galaxy: Copious Fuel for an Eddington-Limited Starburst at the End of Cosmic Reionization
Dominik A. Riechers, Fabian Walter, Frank Bertoldi +6
We have imaged CO(J=7-6) and CI(3P2-3P1) emission in the host galaxy of the z=6.42 quasar SDSS J114816.64+525150.3 (hereafter: J1148+5251) through observations with the Plateau de…
Pinpointing the Molecular Gas within a Lyman Alpha Blob at z ~ 2.7
Yujin Yang, Fabian Walter, Roberto Decarli +5
We present IRAM PdBI observations of the CO(3-2) and CO(5-4) line transitions from a Ly-alpha blob at z~2.7 in order to investigate the gas kinematics, determine the location of th…
An extreme ram-pressure stripping event in a protocluster at redshift 4.3
Dazhi Zhou, Scott C. Chapman, Manuel Aravena +16
In the nearby Universe, the environment plays a crucial role in suppressing star formation in dense regions. In particular, ram-pressure stripping (RPS) is a major mechanism for re…
A wide-field, multi-line survey of CO in the Magellanic Clouds at parsec-scale resolution: characterising the molecular gas content with a 50-m single-dish submillimeter telescope
Francisca Kemper, Rosie Chen, Axel Weiss +8
The Large and Small Magellanic Clouds (LMC, SMC) are nearby dwarf galaxies whose proximity uniquely enables molecular cloud-scale resolution observations across the entire Magellan…
BLAST: the far-infrared/radio correlation in distant galaxies
R. J. Ivison, David M. Alexander, Andy D. Biggs +32
We investigate the correlation between far-infrared (FIR) and radio luminosities in distant galaxies, a lynchpin of modern astronomy. We use data from the Balloon-borne Large Apert…
The interstellar medium distribution, gas kinematics, and system dynamics of the far-infrared luminous quasar SDSS J2310+1855 at
Yali Shao, Ran Wang, Axel Weiss +12
We present ALMA sub-kpc- to kpc-scale resolution observations of the [CII], CO(9-8), and OH\,(--) lines along with their dust continuum emission toward the FIR…
Constraining Dust and Molecular Gas Properties in Lyman Alpha Blobs at z~3
Yujin Yang, Roberto Decarli, Helmut Dannerbauer +14
In order to constrain the bolometric luminosities, dust properties and molecular gas content of giant Lyman alpha nebulae, the so-called Lyman alpha blobs, we have carried out a st…
Evidence for environmental effects in the protocluster core SPT234956
Chayce Hughes, Ryley Hill, Scott Chapman +16
We present ALMA observations of the [CI] 492 and 806GHz fine-structure lines in 25 dusty star-forming galaxies (DSFGs) at in the core of the SPT234956 protoclu…
Molecular gas in three z~7 quasar host galaxies
Bram Venemans, Fabian Walter, Roberto Decarli +6
We present ALMA band 3 observations of the CO(6-5), CO(7-6), and [CI] 369micron emission lines in three of the highest redshift quasar host galaxies at 6.6<z<6.9. These measurement…
Evidence for Infalling Gas in a Lyman- Blob
Yiping Ao, Zheng Zheng, Christian Henkel +11
Lyman- blobs (LABs) are spatially extended nebulae of emission in the Ly line of hydrogen, seen at high redshifts, and most commonly found in the dense environment…
The extended molecular gas of the Circinus galaxy and NGC 1097 as seen by APEX
Akhil Lasrado, Claudia Cicone, Axel Weiss
The outer region of the interstellar medium (ISM) is witness to dynamically important events in a galaxy's evolutionary history such as outflows, inflows, tidal interactions, and m…
An ALMA survey of Sub-millimetre Galaxies in the Extended Chandra Deep Field South: Detection of [C II] at z=4.4
Mark Swinbank, Alexander Karim, Ian Smail +19
We present ALMA 870-um (345GHz) observations of two sub-millimetre galaxies (SMGs) drawn from an ALMA study of the 126 sub-millimeter sources from the LABOCA Extended Chandra Deep…
The ionization rates of galactic nuclei and disks from Herschel/HIFI observations of water and its associated ions
Floris van der Tak, Axel Weiss, Lijie Liu +1
(Abridged) We present Herschel/HIFI spectra of the H2O 1113 GHz and H2O+ 1115 GHz lines toward five nearby prototypical starburst/AGN systems, and OH+ 971 GHz spectra toward three…
NOEMA High Fidelity Imaging of the Molecular Gas in and around M82
Nico Krieger, Fabian Walter, Alberto D. Bolatto +11
We present a 154 pointing IRAM NOEMA mosaic of the CO(1-0) line emission in and around the nearby starburst galaxy M82. The observations, complemented by zero--spacing observations…
The ALMA Spectroscopic Survey in the HUDF: Constraining cumulative CO emission at with power spectrum analysis of ASPECS LP data from 84 to 115 GHz
Bade Uzgil, Chris Carilli, Adam Lidz +12
We present a power spectrum analysis of the ALMA Spectroscopic Survey Large Program (ASPECS LP) data from 84 to 115 GHz. These data predominantly probe small-scale fluctuations ($k…
A Molecular Star Formation Law in the Atomic Gas Dominated Regime in Nearby Galaxies
Andreas Schruba, Adam K. Leroy, Fabian Walter +11
We use the IRAM HERACLES survey to study CO emission from 33 nearby spiral galaxies down to very low intensities. Using atomic hydrogen (HI) data, mostly from THINGS, we predict th…
Faint CO Line Wings in Four Star-Forming (Ultra)luminous Infrared Galaxies
Adam K. Leroy, Fabian Walter, Roberto Decarli +3
We report the results of a search for large velocity width, low-intensity line wings - a commonly used signature of molecular outflows - in four low redshift (ultra)luminous infrar…
Low-J CO Line Ratios From Single Dish CO Mapping Surveys and PHANGS-ALMA
Adam K. Leroy, Erik Rosolowsky, Antonio Usero +32
We measure the low-J CO line ratio R21=CO(2-1)/CO(1-0), R32=CO(3-2)/CO(2-1), and R31 = CO(3-2)/CO(1-0) using whole-disk CO maps of nearby galaxies. We draw CO(2-1) from PHANGS--ALM…
The ALMA Spectroscopic Survey in the HUDF: A Search for [CII] Emitters at
Bade D. Uzgil, Pascal A. Oesch, Fabian Walter +18
The ALMA Spectroscopic Survey in the Hubble Ultra Deep Field (ASPECS) Band 6 scan (212-272 GHz) covers potential [CII] emission in galaxies at throughout a 2.9 arcm…
The ALMA Spectroscopic Survey in the HUDF: The Cosmic Dust and Gas Mass Densities in Galaxies up to
Benjamin Magnelli, Leindert Boogaard, Roberto Decarli +24
Using the deepest 1.2 mm continuum map to date in the Hubble Ultra Deep Field obtained as part of the ALMA Spectroscopic Survey (ASPECS) large program, we measure the cosmic densit…
The multi-phase ISM in the nearby composite AGN-SB galaxy NGC 4945: large (parsecs) scale mechanical heating
Enrica Bellocchi, Jesús MartÃn-Pintado, Rolf Güsten +8
We aim at carrying out a comprehensive study of the nearby composite AGN-SB galaxy, NGC 4945, using spectroscopic and photometric data from the Herschel satellite. In particular, w…
PHIBSS: Exploring the Dependence of the CO-H Conversion Factor on Total Mass Surface Density at
Timothy Carleton, Michael C. Cooper, Alberto D. Bolatto +10
We present an analysis of the relationship between the CO-H conversion factor () and total mass surface density () in star-forming galaxies at $z <…
ALMA resolves turbulent, rotating [CII] emission in a young starburst galaxy at z=4.8
Carlos De Breuck, Rebecca J. Williams, Mark Swinbank +9
We present spatially resolved Atacama Large Millimeter/submillimeter Array (ALMA) [CII] observations of the z=4.7555 submillimetre galaxy, ALESS 73.1. Our 0.5" FWHM map resolves th…
Microwave Background Temperature at a Redshift of 6.34 from H2O Absorption
Dominik A. Riechers, Axel Weiss, Fabian Walter +4
Distortions of the observed cosmic microwave background imprinted by the Sunyaev-Zel'dovich effect toward massive galaxy clusters due to inverse Compton scattering of microwave pho…
The Starburst-Driven Molecular Wind in NGC 253 and the Suppression of Star Formation
Alberto D. Bolatto, Steven R. Warren, Adam K. Leroy +9
The under-abundance of very massive galaxies in the universe is frequently attributed to the effect of galactic winds. Although ionized galactic winds are readily observable most o…
Megaparsec-scale structure around the proto-cluster core SPT234956 at
Ryley Hill, Scott Chapman, Douglas Scott +20
We present an extensive ALMA spectroscopic follow-up programme of the structure SPT234956, one of the most actively star-forming proto-cluster cores known, to iden…
Rise of the Titans: A Dusty, Hyper-Luminous "870 micron Riser" Galaxy at z~6
Dominik A. Riechers, T. K. Daisy Leung, Rob J. Ivison +12
We report the detection of ADFS-27, a dusty, starbursting major merger at a redshift of z=5.655, using the Atacama Large Millimeter/submillimeter Array (ALMA). ADFS-27 was selected…
A Survey of Atomic Carbon at High Redshift
Fabian Walter, Axel Weiss, Dennis Downes +2
We present a survey of atomic carbon (CI) emission in high-redshift (z>2) submillimeter galaxies (SMGs) and quasar host galaxies (QSOs). Sensitive observations of the CI(3P_1->3P_0…
ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: The Infrared Excess of UV-selected z=2-10 galaxies as a function of UV-continuum Slope and Stellar Mass
Rychard Bouwens, Manuel Aravena, Roberto Decarli +25
We make use of deep 1.2mm-continuum observations (12.7microJy/beam RMS) of a 1 arcmin^2 region in the Hubble Ultra Deep Field to probe dust-enshrouded star formation from 330 Lyman…
The ALMA Spectroscopic Survey in the HUDF: Multi-band constraints on line luminosity functions and the cosmic density of molecular gas
Roberto Decarli, Manuel Aravena, Leindert Boogaard +20
We present a CO and atomic fine-structure line luminosity function analysis using the ALMA Spectroscopic Survey in the Hubble Ultra Deep Field (ASPECS). ASPECS consists of two spat…
The ALMA Spectroscopic Survey Large Program: The Infrared Excess of z=1.5-10 UV-selected Galaxies and the Implied High-Redshift Star Formation History
Rychard Bouwens, Jorge Gonzalez-Lopez, Manuel Aravena +22
We make use of sensitive (9.3 microJy/beam RMS) 1.2mm-continuum observations from the ASPECS ALMA large program of the Hubble Ultra Deep Field (HUDF) to probe dust-enshrouded star…
A Comparison of the Stellar, CO and Dust-Continuum Emission from Three, Star-Forming HUDF Galaxies at
Melanie Kaasinen, Fabian Walter, Mladen Novak +17
We compare the extent of the dust, molecular gas and stars in three star-forming galaxies, at and , selected from the Hubble Ultra Deep Field based on their brig…
The properties of the interstellar medium in dusty, star-forming galaxies at : The shape of the CO spectral line energy distributions
Dominic J. Taylor, A. M. Swinbank, Ian Smail +15
The molecular gas in the interstellar medium (ISM) of star-forming galaxy populations exhibits diverse physical properties. We investigate the CO excitation of twelve dusty,…
Ammonia as a Temperature Tracer in the Ultraluminous Galaxy Merger Arp220
Juergen Ott, Christian Henkel, James A Braatz +1
(abridged) We present ATCA and GBT observations of ammonia (NH3) toward the ultraluminous infrared galaxy (ULIRG) merger Arp220. We detect the NH3 (1,1), (2,2), (3,3), (4,4), (5,5)…
CO(1-0) in z>2 Quasar Host Galaxies: No Evidence for Extended Molecular Gas Reservoirs
Dominik A. Riechers, Christopher L. Carilli, Ronald J. Maddalena +8
We report the detection of CO(1-0) emission in the strongly lensed high-redshift quasars IRAS F10214+4724 (z=2.286), the Cloverleaf (z=2.558), RX J0911+0551 (z=2.796), SMM J04135+1…
A Large Molecular Gas Reservoir in the Protocluster SPT234956 at
Dazhi Zhou, Scott C. Chapman, Nikolaus Sulzenauer +13
We present Atacama Compact Array (ACA) Band-3 observations of the protocluster SPT234956, an extreme system hosting submillimeter galaxies (SMGs) at $z\,{=}\,4.3…
Vz-GAL: Probing Cold Molecular Gas in Dusty Star-forming Galaxies at z=1-6
Prachi Prajapati, Dominik Riechers, Pierre Cox +20
We present the first results of Vz-GAL, a high-redshift CO(J=1-0) large survey with the Karl G. Jansky Very Large Array, targeting 92 Herschel-selected, infrared-luminous, dusty st…
The [NII] 205 m line emission from high-z SMGs and QSOs
Saimurali Kolupuri, Roberto Decarli, Roberto Neri +8
We present [NII] 205 m fine structure line observations of three submillimeter galaxies (SMGs) and three quasar host galaxies at 4z6 using the Institut de r…
The ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: The nature of the faintest dusty star-forming galaxies
Manuel Aravena, Leindert Boogaard, Jorge Gónzalez-López +20
We present a characterization of the physical properties of a sample of 35 securely-detected, dusty galaxies in the deep ALMA 1.2-mm image obtained as part of the ALMA Spectroscopi…
Spatially Resoved 12CO(2-1)/12CO(1-0) in the Starburst Galaxy NGC 253: Assessing Optical Depth to Constrain the Molecular Mass Outflow Rate
Laura K. Zschaechner, Alberto D. Bolatto, Fabian Walter +9
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of 12CO(1-0) and 12CO(2-1) in the central 40" (680 pc) of the nuclear starburst galaxy NGC 253, includin…
Resolving the dusty star-forming galaxy GN20 at z=4.055 with NOEMA and JWST: A similar distribution of stars, gas and dust despite distinct apparent profiles
Leindert A. Boogaard, Fabian Walter, Axel Weiss +8
We present high-resolution (0.13"-0.23") NOEMA observations of the dust continuum emission at 1.1 mm (rest-frame 220 micron) and JWST/NIRCam and MIRI imaging of the z=4.055 starbur…
On the effect of the Cosmic Microwave Background in high-redshift (sub-)millimeter observations
Elisabete da Cunha, Brent Groves, Fabian Walter +11
Modern (sub-)millimeter interferometers enable the measurement of the cool gas and dust emission of high-redshift galaxies (z>5). However, at these redshifts the cosmic microwave b…
Vz-GAL Dusty Star-Forming Galaxies: Revisiting the CO-H2 Conversion Factor Tension
Prachi Prajapati, Axel Weiss, Dominik Riechers +17
The CO luminosity-to-H mass conversion factor () remains a debated uncertainty in determining molecular gas masses of high-redshift dusty star-forming galaxies (DSFGs)…
A lambda=3 mm molecular line survey of NGC1068. Chemical signatures of an AGN environment
Rebeca Aladro, Serena Viti, Estelle Bayet +7
We aimed to study the molecular composition of the interstellar medium (ISM) surrounding an Active Galactic Nucleus (AGN), by making an inventory of molecular species and their abu…
Molecular Gas in M82: Resolving the Outflow and Streamers
Fabian Walter, Axel Weiss, Nick Scoville
We present a high-resolution (3.6'', 70pc) CO(1-0) mosaic of the molecular gas in M 82 covering an area of 2.5' x 3.5' (2.8kpc x 3.9kpc) obtained with the OVRO millimeter interfero…
Molecular gas in z~6 quasar host galaxies
Roberto Decarli, Antonio Pensabene, Bram Venemans +19
We investigate the molecular gas content of z~6 quasar host galaxies using the IRAM / Northern Extended Millimeter Array. We target the 3mm dust continuum, and the line emission fr…
The Temperature Distribution of Dense Molecular Gas in the Center of NGC 253
Juergen Ott, Axel Weiss, Christian Henkel +1
[abridged] We present interferometric maps of ammonia (NH3) of the nearby starburst galaxy NGC 253 [star formation rate: ~2.8 Mo yr^(-1)]. The observations have been taken with the…
The first ground-based detection of the 752 GHz water line in local ultra-luminous infrared galaxies using APEX-SEPIA
Daysi Quinatoa, Chentao Yang, Edo Ibar +10
We report the first ground-based detection of the water line p-H2O (211-202) at 752.033 GHz in three z < 0.08 ultra-luminous infrared galaxies (ULIRGs): IRAS 06035-7102, IRAS 17207…
ALMA spectroscopic survey in the Hubble Ultra Deep Field: CO luminosity functions and the evolution of the cosmic density of molecular gas
Roberto Decarli, Fabian Walter, Manuel Aravena +37
In this paper we use ASPECS, the ALMA Spectroscopic Survey in the {\em Hubble} Ultra Deep Field (UDF) in band 3 and band 6, to place blind constraints on the CO luminosity function…
The ALMA Spectroscopic Survey in the HUDF: A model to explain observed 1.1 and 0.85 millimeter dust continuum number counts
Gergö Popping, Fabian Walter, Peter Behroozi +17
We present a new semi-empirical model for the dust continuum number counts of galaxies at 1.1 millimeter and 850 \micron. Our approach couples an observationally motivated model fo…
Observations by GMRT at 323 MHz of radio-loud quasars at
Yali Shao, Jeff Wagg, Ran Wang +5
We present Giant Metrewave Radio Telescope (GMRT) 323 MHz radio continuum observations toward 13 radio-loud quasars at , sampling the low-frequency synchrotron emission from t…
The evolution of the cosmic molecular gas density
Fabian Walter, Chris Carilli, Roberto Decarli +38
One of the last missing pieces in the puzzle of galaxy formation and evolution through cosmic history is a detailed picture of the role of the cold gas supply in the star-formation…
Turbulent Gas in Lensed Planck-selected Starbursts at redshifts 1-3.5
Kevin C. Harrington, Axel Weiss, Min S. Yun +26
Dusty star-forming galaxies at high redshift (1 < z < 3) represent the most intense star-forming regions in the Universe. Key aspects to these processes are the gas heating and coo…
The ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Evolution of the molecular gas in CO-selected galaxies
Manuel Aravena, Roberto Decarli, Jorge Gónzalez-López +31
We analyze the interstellar medium properties of a sample of sixteen bright CO line emitting galaxies identified in the ALMA Spectroscopic Survey in the Hubble Ultra Deep Field (AS…
The clustering of submillimeter galaxies detected with ALMA
Cristina Garcia-Vergara, Jacqueline Hodge, Joseph F. Hennawi +4
Previous studies measuring the clustering of submillimeter galaxies (SMGs) have based their measurements on single-dish detected sources, finding evidence for strong clustering. Ho…
ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Molecular gas reservoirs in high-redshift galaxies
Roberto Decarli, Fabian Walter, Manuel Aravena +29
We study the molecular gas properties of high- galaxies observed in the ALMA Spectroscopic Survey (ASPECS) that targets a arcmin region in the Hubble Ultra Deep Fiel…
VLA-ALMA Spectroscopic Survey in the Hubble Ultra Deep Field (VLASPECS): Total Cold Gas Masses and CO Line Ratios for z=2-3 "Main Sequence" Galaxies
Dominik A. Riechers, Leindert A. Boogaard, Roberto Decarli +15
Using the NSF's Karl G. Jansky Very Large Array (VLA), we report six detections of CO(J=1-0) emission and one upper limit in z=2-3 galaxies originally detected in higher-J CO emiss…
A Comparative Study of the Ground State Transitions of CO and [C I] as Molecular Gas Tracers at High Redshift
Marta Frias Castillo, Matus Rybak, Jacqueline A. Hodge +22
The CO(1--0) and [\ion{C}{1}](1--0) emission lines are well-established tracers of cold molecular gas mass in local galaxies. At high redshift, where the interstellar medium (ISM)…
Detection of molecular gas in a distant submillimetre galaxy at z=4.76 with ATCA
Kristen Coppin, Scott Chapman, Ian Smail +19
We have detected the CO(2-1) transition from the submillimetre galaxy (SMG) LESSJ033229.4-275619 at z=4.755 using the new Compact Array Broadband Backend system on the Australian T…
An ALMA/NOEMA survey of the molecular gas properties of high-redshift star-forming galaxies
Jack E. Birkin, Axel Weiss, J. L. Wardlow +18
We present a survey of the molecular gas in 61 submillimetre galaxies (SMGs) selected from 870m continuum surveys of the COSMOS, UDS and ECDFS fields, using the Atacama Large M…
The ALMA Spectroscopic Survey in the HUDF: Deep 1.2 mm continuum number counts
Jorge González-López, Mladen Novak, Roberto Decarli +19
We present the results from the 1.2 mm continuum image obtained as part of the ALMA Spectroscopic Survey in the Hubble Ultra Deep Field (ASPECS). The 1.2 mm continuum image has a s…
Imaging the Molecular Gas Properties of a Major Merger Driving the Evolution of a z=2.5 Submillimeter Galaxy
Dominik A. Riechers, Christopher L. Carilli, Fabian Walter +6
We report the detection of spatially extended CO 1-0 and 5-4 emission in the z=2.49 submillimeter galaxy (SMG) J123707+6214, using the Expanded Very Large Array and the Plateau de…
ALMA 200 pc imaging of a z~7 quasar reveals a compact, disk-like host galaxy
Fabian Walter, Marcel Neeleman, Roberto Decarli +10
We present 0".035 resolution (~200 pc) imaging of the 158 um [CII] line and the underlying dust continuum of the z=6.9 quasar J234833.34-305410.0. The 18 h ALMA observations reveal…
Imaging the Molecular Interstellar Medium in a Gravitationally Lensed Star-forming Galaxy at z=5.7
Yordanka Apostolovski, Manuel Aravena, Timo Anguita +17
Aims: We present and study spatially resolved imaging obtained with the Atacama Large Millimeter/submillimeter Array (ALMA) of multiple CO(65, 87 and 98) and tw…
ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Survey Description
Fabian Walter, Roberto Decarli, Manuel Aravena +39
We present the rationale for and the observational description of ASPECS: The ALMA SPECtroscopic Survey in the Hubble Ultra-Deep Field (UDF), the cosmological deep field that has t…
Multi-Phase ISM in the z = 5.7 Hyperluminous Starburst SPT0346-52
Katrina C. Litke, Daniel P. Marrone, Manuel Aravena +13
SPT0346-52 (z=5.7) is the most intensely star-forming galaxy discovered by the South Pole Telescope, with Sigma_SFR ~ 4200 Msol yr^-1 kpc^-2. In this paper, we expand on previous s…
JWST's TEMPLATES for Star Formation: The First Resolved Gas-Phase Metallicity Maps of Dust-Obscured Star-Forming Galaxies at 4
Jack E. Birkin, Taylor A. Hutchison, Brian Welch +23
We present the first spatially resolved maps of gas-phase metallicity for two dust-obscured star-forming galaxies (DSFGs) at 4, from the JWST TEMPLATES Early Release Scienc…
Submillimeter Polarimetry with PolKa, a reflection-type modulator for the APEX telescope
Helmut Wiesemeyer, Talayeh Hezareh, Ernst Kreysa +6
Imaging polarimetry is an important tool for the study of cosmic magnetic fields. In our Galaxy, polarization levels of a few up to 10\% are measured in the submillimeter dus…
Dense Molecular Gas Tracers in the Outflow of the Starburst Galaxy NGC 253
Fabian Walter, Alberto D. Bolatto, Adam K. Leroy +12
We present a detailed study of a molecular outflow feature in the nearby starburst galaxy NGC 253 using ALMA. We find that this feature is clearly associated with the edge of NGC 2…
The ALMA Spectroscopic Survey in the HUDF: CO emission lines and 3 mm continuum sources
Jorge González-López, Roberto Decarli, Ricardo Pavesi +29
The ALMA SPECtroscopic Survey in the {\it Hubble} Ultra Deep Field is an ALMA large program that obtained a frequency scan in the 3\,mm band to detect emission lines from the molec…
Oxygen isotopes reveal low-mass star dominance in the Small Magellanic Cloud
Yan Gong, Zhi-yu Zhang, Christian Henkel +9
Oxygen isotope abundances and their ratios are fingerprints of stellar evolution and therefore provide a powerful tool in tracing the enrichment history of galaxies. However, their…
ALMA Observation of 158 micron [CII] Line and Dust Continuum of a z=7 Normally Star-forming Galaxy in the Epoch of Reionization
Kazuaki Ota, Fabian Walter, Kouji Ohta +16
We present ALMA observations of the [CII] line and far-infrared (FIR) continuum of a normally star-forming galaxy in the reionization epoch, the z=6.96 Ly-alpha emitter (LAE) IOK-1…
An Overabundance of Radio-AGN in the SPT2349-56 Protocluster: Preheating the Intra-Cluster Medium
Scott C. Chapman, Roger P. Deane, Dazhi Zhou +22
Following the detection of a radio-loud Active Galactic Nucleus (AGN) in the z=4.3 protocluster SPT2349-56, we have obtained additional observations with MeerKAT in S-band (2.4 GHz…
ALMA Imaging and Gravitational Lens Models of South Pole Telescope-Selected Dusty, Star-Forming Galaxies at High Redshifts
Justin Spilker, Daniel Marrone, Manuel Aravena +18
The South Pole Telescope has discovered one hundred gravitationally lensed, high-redshift, dusty, star-forming galaxies (DSFGs). We present 0.5" resolution 870um Atacama Large Mill…
Rapid build-up of the stellar content in the protocluster core SPT234956 at
Ryley Hill, Scott Chapman, Kedar A. Phadke +22
The protocluster SPT234956 at contains one of the most actively star-forming cores known, yet constraints on the total stellar mass of this system are highly uncer…
Brightest Cluster Galaxy Formation in the z=4.3 Protocluster SPT2349-56: Discovery of a Radio-Loud AGN
Scott C. Chapman, Ryley Hill, Manuel Aravena +29
We have observed the z=4.3 protocluster SPT2349-56 with ATCA with the aim of detecting radio-loud active galactic nuclei (AGN) amongst the ~30 submillimeter galaxies identified in…
The nature of the [CII] emission in dusty star-forming galaxies from the SPT survey
Bitten Gullberg, Carlos De Breuck, Joaquin Vieira +24
We present [CII] observations of 20 strongly lensed dusty star forming galaxies at 2.1 < z < 5.7 using APEX and Herschel. The sources were selected on their 1.4 mm flux (S_1.4mm >…
Low CO Luminosities in Dwarf Galaxies
Andreas Schruba, Adam K. Leroy, Fabian Walter +10
[Abridged] We present maps of CO 2-1 emission covering the entire star-forming disks of 16 nearby dwarf galaxies observed by the IRAM HERACLES survey. The data have 13 arcsec angul…
Dense Molecular Gas Excitation in Nuclear Starbursts at High Redshift: HCN, HNC, and HCO+(J=6-5) Emission in the z=3.91 Quasar Host of APM08279+5255
Dominik A. Riechers, Axel Weiss, Fabian Walter +1
We report the detection of surprisingly strong HCN, HNC, and HCO+(J=6-5) emission in the host galaxy of the z=3.91 quasar APM08279+5255 through observations with CARMA. HCN, HNC, a…
Copious Amounts of Dust and Gas in a z=7.5 Quasar Host Galaxy
Bram Venemans, Fabian Walter, Roberto Decarli +10
We present IRAM/NOEMA and JVLA observations of the quasar J1342+0928 at z=7.54 and report detections of copious amounts of dust and [CII] emission in the interstellar medium (ISM)…
Evidence for an Expanding Molecular Superbubble in M82
Axel Weiss, Fabian Walter, Nikolaus Neininger +1
We present evidence for an expanding superbubble in M82 (diameter: ~130 pc, expansion velocity: ~45 km/s, mass: ~8*10^6 SM). It is seen in the 12CO(J=1-0), 12CO(J=2-1), 13CO(J=1-0)…
The ALMA Spectroscopic Survey in the HUDF: Nature and physical properties of gas-mass selected galaxies using MUSE spectroscopy
Leindert A. Boogaard, Roberto Decarli, Jorge González-López +31
We discuss the nature and physical properties of gas-mass selected galaxies in the ALMA spectroscopic survey (ASPECS) of the Hubble Ultra Deep Field (HUDF). We capitalize on the de…
A submillimetre galaxy at z=4.76 in the LABOCA survey of the Extended Chandra Deep Field South
Kristen Coppin, Ian Smail, David M. Alexander +30
We report on the identification of the highest redshift submm-selected source currently known: LESSJ033229.4-275619. This source was detected in the Large Apex BOlometer CAmera (LA…
The Multi-Phase Cold Fountain in M82 Revealed by a Wide, Sensitive Map of the Molecular ISM
Adam K. Leroy, Fabian Walter, Paul Martini +7
We present a wide area (~ 8 x 8 kpc), sensitive map of CO (2-1) emission around the nearby starburst galaxy M82. Molecular gas extends far beyond the stellar disk, including emissi…
An ALMA survey of Sub-millimeter Galaxies in the Extended Chandra Deep Field South: Physical properties derived from ultraviolet-to-radio modelling
Elisabete da Cunha, Fabian Walter, Ian Smail +15
[abridged] The ALESS survey has followed-up a sample of 122 sub-millimeter sources in the Extended Chandra Deep Field South at 870um with ALMA, allowing to pinpoint the positions o…
A joint analysis of BLAST 250--500um and LABOCA 870um observations in the Extended Chandra Deep Field South
Edward L. Chapin, Scott C. Chapman, Kristen E. Coppin +17
We present a joint analysis of the overlapping BLAST 250, 350, 500um, and LABOCA 870um observations (from the LESS survey) of the ECDF-S. Out to z~3, the BLAST filters sample near…
Fragmentation and filaments at the onset of star and cluster formation: SABOCA 350 m view of ATLASGAL selected massive clumps
Yuxin Lin, Timea Csengeri, Friedrich Wyrowski +4
The structure formation of the dense interstellar material and the fragmentation of clumps into cores is a fundamental step to understand how stars and stellar clusters form. We ai…
The hidden circumgalactic medium
Claudia Cicone, Carlos De Breuck, Chian-Chou Chen +15
The cycling of baryons in and out of galaxies is what ultimately drives galaxy formation and evolution. The circumgalactic medium (CGM) represents the interface between the interst…
The molecular gas in Luminous Infrared Galaxies: a new emergent picture
Padelis P. Papadopoulos, Zhi-Yu Zhang, Axel Weiss +5
Results from a large, multi-J CO, {13}CO, and HCN line survey of Luminous Infrared Galaxies (L_{IR}>=10^{10} L_{\odot}) in the local Universe (z<=0.1), complemented by CO J=4--3 up…