Publications (41)
Mass Assembly and Chemical Complexity in the Milky Way
Pamela Klaassen, David Eden, Alessio Traficante +13
(Sub-)millimeter spectral lines can be used not only to understand the chemical complexity and enrichment history of an observed portion of our Galaxy, but with spectrally resolved…
Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Gas and dust in nearby galaxies
Daizhong Liu, Amelie Saintonge, Caroline Bot +25
Understanding the physical processes that regulate star formation and galaxy evolution are major areas of activity in modern astrophysics. Nearby galaxies offer unique opportunitie…
The Spatial Distribution of Dust and Stellar Emission of the Magellanic Clouds
Ramin A. Skibba, Charles W. Engelbracht, Gonzalo Aniano +24
We study the emission by dust and stars in the Large and Small Magellanic Clouds, a pair of low-metallicity nearby galaxies, as traced by their spatially resolved spectral energy d…
Scylla: Observational Evidence for an Order of Magnitude in Dust Mass Opacity Evolution with ISM Density in the Large Magellanic Cloud
Christina W. Lindberg, Christopher J. R. Clark, Claire E. Murray +11
The emissivity of dust is known to vary greatly with radiative environment, density, grain chemistry, and geometry. Discrepancies between dust mass surface densities derived from f…
The Spitzer Spectroscopic Survey of the Small Magellanic Cloud (S4MC): Probing the Physical State of Polycyclic Aromatic Hydrocarbons in a Low-Metallicity Environment
Karin M. Sandstrom, Alberto D. Bolatto, Caroline Bot +12
We present results of mid-infrared spectroscopic mapping observations of six star-forming regions in the Small Magellanic Cloud from the Spitzer Spectroscopic Survey of the SMC (S4…
The Resolved Behavior of Dust Mass, Polycyclic Aromatic Hydrocarbon Fraction, and Radiation Field in ~ 800 Nearby Galaxies
Jérémy Chastenet, Karin M. Sandstrom, Adam K. Leroy +8
We present resolved m dust spectral energy distribution (SED) fitting for nearby galaxies. We measure the distribution of radiation field intensities heating…
Scylla IV: Intrinsic Stellar Properties and Line-of-Sight Dust Extinction Measurements Towards 1.5 Million Stars in the SMC and LMC
Christina W. Lindberg, Claire E. Murray, Petia Yanchulova Merica-Jones +14
By analyzing the spectral energy distributions (SEDs) of resolved stars in nearby galaxies, we can constrain their stellar properties and line-of-sight dust extinction. From the Sc…
AtLAST Science Overview Report
Mark Booth, Pamela Klaassen, Claudia Cicone +81
Submillimeter and millimeter wavelengths provide a unique view of the Universe, from the gas and dust that fills and surrounds galaxies to the chromosphere of our own Sun. Current…
Astro2020: Unleashing the Potential of Dust Emission as a Window onto Galaxy Evolution
Christopher Clark, Julua Roman-Duval, Sarah Sadavoy +15
We present the severe, systematic uncertainties currently facing our understanding of dust emission, which stymie our ability to truly exploit dust as a tool for studying galaxy ev…
The Relationship Between Molecular Gas, HI, and Star Formation in the Low-Mass, Low-Metallicity Magellanic Clouds
Katherine E. Jameson, Alberto D. Bolatto, Adam K. Leroy +14
The Magellanic Clouds provide the only laboratory to study the effect of metallicity and galaxy mass on molecular gas and star formation at high (~20 pc) resolution. We use the dus…
Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. I. Dust Properties and Insights into the Origin of the Submm Excess Emission
Karl D. Gordon, Julia Roman-Duval, Caroline Bot +33
The dust properties in the Large and Small Magellanic Clouds are studied using the HERITAGE Herschel Key Project photometric data in five bands from 100 to 500 micron. Three simple…
The Quest for the Missing Dust: I -- Restoring Large Scale Emission in Herschel Maps of Local Group Galaxies
Christopher J. R. Clark, Julia C. Roman-Duval, Karl D. Gordon +2
Because the galaxies of the Local Group have such large angular sizes, much of their diffuse, large-angular-scale emission is filtered out by the Herschel data reduction process. I…
Surveying the Agents of Galaxy Evolution in the Tidally-Stripped, Low Metallicity Small Magellanic Cloud (SAGE-SMC). I. Overview
Karl D. Gordon, Margaret Meixner, Marilyn Meade +57
The Small Magellanic Cloud (SMC) provides a unique laboratory for the study of the lifecycle of dust given its low metallicity (~1/5 solar) and relative proximity (~60 kpc). This m…
The Spitzer Survey of the Small Magellanic Cloud: S3MC Imaging and Photometry in the Mid- and Far-Infrared Wavebands
Alberto D. Bolatto, Joshua D. Simon, Snezana Stanimirovic +12
We present the initial results from the Spitzer Survey of the Small Magellanic Cloud (S3MC), which imaged the star-forming body of the Small Magellanic Cloud (SMC) in all seven MIP…
Commission Femmes et Astronomie de la SF2A: Women participation in French astronomy
Rhita-Maria Ouazzani, Caroline Bot, Sylvie Brau-Nogué +7
The Commission Femmes et Astronomie conducted a statistical study that aims at mapping the presence of women in French professional Astronomy today, and set a starting point for st…
The Dust-Selected Molecular Clouds in the Northeast Region of the Small Magellanic Cloud
Tatsuya Takekoshi, Tetsuhiro Minamidani, Shinya Komugi +19
We present a high-sensitivity () continuum observation in a 343 arcmin area of the northeast region in the Small Magellanic Cloud at a wavelengt…
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…
Scylla I: A pure-parallel, multi-wavelength imaging survey of the ULLYSES fields in the LMC and SMC
Claire E. Murray, Christina W. Lindberg, Petia Yanchulova Merica-Jones +17
Scylla is a deep Hubble Space Telescope survey of the stellar populations, interstellar medium and star formation in the LMC and SMC. As a pure-parallel complement to the Ultraviol…
The PRIMA promise of deciphering interstellar dust evolution with observations of the nearby Universe
Frédéric Galliano, Maarten Baes, Léo Belloir +25
This paper develops a few science cases, using the PRIMA far-IR probe, aimed at achieving several breakthroughs in our understanding of the dust properties and their evolution. We…
The Polycyclic Aromatic Hydrocarbon Mass Fraction on a 10 pc scale in the Magellanic Clouds
Jeremy Chastenet, Karin Sandstrom, I-Da Chiang +8
We present maps of the dust properties in the Small and Large Magellanic Clouds (SMC, LMC) from fitting Spitzer and Herschel observations with the \citet{DL07} dust model. We deriv…
Star Formation in NGC 5194 (M51a). II. The Spatially-Resolved Star Formation Law
Robert C. Kennicutt, Daniela Calzetti, Fabian Walter +20
We have studied the relationship between the star formation rate (SFR) surface density and gas surface density in the spiral galaxy M51a (NGC 5194), using multi-wavelength data obt…
Impact of Anomalous Microwave Emission (AME) on Radio Spectral Energy Distributions: SKA Observations of Galaxies Near and Far
Ilsang Yoon, Eric Murphy, Caroline Bot +1
Radio continuum emission powered by the thermal bremsstrahlung process is a clean, dust-free tracer of star formation in galaxies. However, the existence of anomalous microwave emi…
The State of the Gas and the Relation Between Gas and Star Formation at Low Metallicity: the Small Magellanic Cloud
Alberto D. Bolatto, Adam K. Leroy, Katherine Jameson +15
We compare atomic gas, molecular gas, and the recent star formation rate (SFR) inferred from H-alpha in the Small Magellanic Cloud (SMC). By using infrared dust emission and local…
Scylla III. The Outside-In Radial Age Gradient in the Small Magellanic Cloud and the Star Formation Histories of the Main Body, Wing and Outer Regions
Roger E. Cohen, Kristen B. W. McQuinn, Claire E. Murray +13
The proximity of the Large and Small Magellanic Clouds (LMC and SMC) provides the opportunity to study the impact of dwarf-dwarf interactions on their mass assembly with a unique l…
Dust Abundance Variations in the Magellanic Clouds: Probing the Lifecycle of Metals with All-Sky Surveys
Julia Roman-Duval, Caroline Bot, Jeremy Chastenet +1
Observations and modeling suggest that the dust abundance (gas-to-dust ratio, G/D) depends on (surface) density. The variations of the G/D provide constraints on the timescales for…
Generating background-corrected VPHAS+ HiPS with Montage
Thomas Boch, Caroline Bot, Pierre Fernique
We present a technique for creating background-corrected HiPS (Hierarchical Progressive Surveys) from VPHAS+ images using the Montage toolkit. By combining advanced background corr…
The influence of supernova remnants on the interstellar medium in the Large Magellanic Cloud seen at 20--600 m wavelengths
MaÅ¡a LakiÄeviÄ, Jacco Th. van Loon, Margaret Meixner +20
We present the analysis of supernova remnants (SNRs) in the Large Magellanic Cloud (LMC) and their influence on the environment at far-infrared (FIR) and submillimeter wavelengths.…
Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. II. Gas-to-Dust Ratio Variations across ISM Phases
Julia Roman-Duval, Karl Gordon, Margaret Meixner +32
The spatial variations of the gas-to-dust ratio (GDR) provide constraints on the chemical evolution and lifecycle of dust in galaxies. We examine the relation between dust and gas…
Scylla VI: Parsec-Scale Dust Extinction Maps in the SMC and LMC
Christina W. Lindberg, Claire E. Murray, Christopher J. R. Clark +14
We present a novel methodology for mapping dust extinction in nearby galaxies at parsec-scale resolution. We apply it to HST 68 fields within the Small and Large Magellanic Clouds…
The Nature of Infrared Emission in the Local Group Dwarf Galaxy NGC 6822 As Revealed by Spitzer
John M. Cannon, Fabian Walter, Lee Armus +19
We present Spitzer imaging of the metal-deficient (Z ~30% Z_sun) Local Group dwarf galaxy NGC 6822. On spatial scales of ~130 pc, we study the nature of IR, H alpha, HI, and radio…
The Spitzer Survey of the Small Magellanic Cloud (S3MC): Insights into the Life-Cycle of Polycyclic Aromatic Hydrocarbons
Karin M. Sandstrom, Alberto D. Bolatto, Bruce Draine +2
We present the results of modeling dust SEDs across the SMC with the aim of mapping the distribution of PAHs in a low-metallicity environment. Using Spitzer Survey of the SMC (S3MC…
Modeling dust emission in the Magellanic Clouds with Spitzer and Herschel
Jeremy Chastenet, Caroline Bot, Karl D. Gordon +4
Dust modeling is crucial to infer dust properties and budget for galaxy studies. However, there are systematic disparities between dust grain models that result in corresponding sy…
Molecular hydrogen emission in the interstellar medium of the Large Magellanic Cloud
Naslim Neelamkodan, Francisca Kemper, Suzanne Madden +20
We present the detection and analysis of molecular hydrogen emission toward ten interstellar regions in the Large Magellanic Cloud. We examined low-resolution infrared spectral map…
Atacama Large Aperture Submillimeter Telescope (AtLAST) Science: Our Galaxy
Pamela Klaassen, Alessio Traficante, Maria T. Beltrán +38
As we learn more about the multi-scale interstellar medium (ISM) of our Galaxy, we develop a greater understanding for the complex relationships between the large-scale diffuse gas…
Spreading the word -- current status of VO tutorials and schools
Katharina A. Lutz, Mark Allen, Caroline Bot +9
With some telescopes standing still, now more than ever simple access to archival data is vital for astronomers and they need to know how to go about it. Within European Virtual Ob…
The Quest for the Missing Dust: II -- Two Orders of Magnitude of Evolution in the Dust-to-Gas Ratio Resolved Within Local Group Galaxies
Christopher J. R. Clark, Julia C. Roman-Duval, Karl D. Gordon +3
We explore evolution in the dust-to-gas ratio with density within four well-resolved Local Group galaxies - the LMC, SMC, M31, and M33. We do this using new maps,…
LABOCA observations of giant molecular clouds in the south west region of the Small Magellanic Cloud
Caroline Bot, Monica Rubio, Francois Boulanger +8
The amount of molecular gas is a key for understanding the future star formation in a galaxy. Because H2 is difficult to observe directly in dense and cold clouds, tracers like CO…
Submillimeter to centimeter excess emission from the Magellanic Clouds. II. On the nature of the excess
Caroline Bot, Nathalie Ysard, Déborah Paradis +4
Dust emission at submm to cm wavelengths is often simply the Rayleigh-Jeans tail of dust particles at thermal equilibrium and is used as a cold mass tracer in various environments…
Serendipity observations of far infrared cirrus emission in the Spitzer Infrared Nearby Galaxies Survey: Analysis of far-infrared correlations
Caroline Bot, George Helou, Francois Boulanger +4
We present an analysis of far-infrared dust emission from diffuse cirrus clouds. This study is based on serendipitous observations at 160 microns at high galactic latitude with the…
The Spitzer Survey of the Small Magellanic Cloud: FIR Emission and Cold Gas in the SMC
Adam Leroy, Alberto Bolatto, Snezana Stanimirovic +3
We present new far infrared maps of the Small Magellanic Cloud (SMC) at 24, 70, and 160 microns obtained as part of the Spitzer Survey of the Small Magellanic Cloud (S3MC,Bolatto e…
Using the Virtual Observatory: multi-instrument, multi-wavelength study of high-energy sources
Sébastien Derriere, Rene W. Goosmann, Caroline Bot +1
This paper presents a tutorial explaining the use of Virtual Observatory tools in high energy astrophysics. Most of the tools used in this paper were developed at the Strasbourg as…