398 citations · 1.9k across the 38 of their papers we have counts for
37 papers
From Atomic Gas to Star Formation
Erik Rosolowsky, Eric Koch, Sambit Roychowdhury +9
Since the 2015 SKA Chapters, the advent of panchromatic observations of nearby galaxies, capable of resolving the interstellar medium (ISM) into individual star-forming regions and…
Pearls on a string: Dark and bright galaxies on a strikingly straight and narrow filament
Maryam Arabsalmani, Sambit Roychowdhury, Benjamin Schneider +11
We identify a chain of galaxies along an almost straight line in the nearby Universe with a projected length of ~5 Mpc. The galaxies are distributed within projected distances of o…
The Smallest Scale of Hierarchy Survey (SSH) III. Dwarf-dwarf satellite merging phenomena in the low-mass regime
Elena Sacchi, Michele Bellazzini, Francesca Annibali +13
We present new deep, wide-field Large Binocular Telescope (LBT) and imaging data from the Smallest Scale of Hierarchy Survey (SSH) revealing previously undetected tidal fea…
DEVILS/MIGHTEE/GAMA/DINGO: The Impact of SFR Timescales on the SFR-Radio Luminosity Correlation
Robin H. W. Cook, Luke J. M. Davies, Jonghwan Rhee +20
The tight relationship between infrared luminosity (L) and 1.4 GHz radio continuum luminosity (L) has proven useful for understanding star formatio…
MIGHTEE-HI: HI galaxy properties in the large scale structure environment at z~0.37 from a stacking experiment
Francesco Sinigaglia, Giulia Rodighiero, Ed Elson +20
We present the first measurement of HI mass of star-forming galaxies in different large scale structure environments from a blind survey at . In particular, we carry ou…
Galaxy And Mass Assembly (GAMA): The group HI mass as a function of halo mass
Ajay Dev, Simon P. Driver, Martin Meyer +11
We determine the atomic hydrogen (HI) to halo mass relation (HIHM) using Arecibo Legacy Fast ALFA survey HI data at the location of optically selected groups from the Galaxy and Ma…
The resolved scaling relations in DustPedia: Zooming in on the local Universe
Viviana Casasola, Simone Bianchi, Laura Magrini +18
We perform a homogeneous analysis of an unprecedented set of spatially resolved scaling relations (SRs) between ISM components and other properties in the range of scales 0.3-3.4 k…
Deep Investigation of Neutral Gas Origins (DINGO): HI stacking experiments with early science data
Jonghwan Rhee, Martin Meyer, Attila Popping +19
We present early science results from Deep Investigation of Neutral Gas Origins (DINGO), an HI survey using the Australian Square Kilometre Array Pathfinder (ASKAP). Using ASKAP su…
Probing galaxy evolution through HI 21-cm emission and absorption: current status and prospects with the Square Kilometre Array
Rajeshwari Dutta, Sushma Kurapati, J. N. H. S. Aditya +8
One of the major science goals of the Square Kilometre Array (SKA) is to understand the role played by atomic hydrogen (HI) gas in the evolution of galaxies throughout cosmic time.…
Unusual gas structure in an otherwise normal spiral galaxy hosting GRB 171205A / SN 2017iuk
M. Arabsalmani, S. Roychowdhury, F. Renaud +4
We study the structure of atomic hydrogen (HI) in the host galaxy of GRB 171205A / SN 2017iuk at z=0.037 through HI 21cm emission line observations with the Karl G. Jansky Very Lar…
ALMA/ACA CO Survey of the IC 1459 and NGC 4636 Groups: Environmental Effects on the Molecular Gas of Group Galaxies
Bumhyun Lee, Jing Wang, Aeree Chung +30
We present new results of a 12CO(J=1-0) imaging survey using the Atacama Compact Array (ACA) for 31 HI detected galaxies in the IC 1459 and NGC 4636 groups. This is the first CO im…
The variation of the gas content of galaxy groups and pairs compared to isolated galaxies
Sambit Roychowdhury, Martin J. Meyer, Jonghwan Rhee +17
We measure how the atomic gas (HI) fraction () of groups and pairs taken as single units vary with average stellar mass ($\langle {\rm M_*} \rang…
WALLABY pre-pilot survey: Two dark clouds in the vicinity of NGC 1395
O. Ivy Wong, A. R. H. Stevens, B. -Q. For +34
We present the Australian Square Kilometre Array Pathfinder (ASKAP) WALLABY pre-pilot observations of two `dark' HI sources (with HI masses of a few times 10^8 Msol and no known st…
The BINGO Project II: Instrument Description
Carlos A. Wuensche, Thyrso Villela, Elcio Abdalla +41
The measurement of diffuse 21-cm radiation from the hyperfine transition of neutral hydrogen (HI signal) in different redshifts is an important tool for modern cosmology. However,…
The BINGO Project I: Baryon Acoustic Oscillations from Integrated Neutral Gas Observations
Elcio Abdalla, Elisa G. M. Ferreira, Ricardo G. Landim +43
Observations of the redshifted 21-cm line of neutral hydrogen (HI) are a new and powerful window of observation that offers us the possibility to map the spatial distribution of co…
A Nearby Galaxy Perspective on Dust Evolution. Scaling relations and constraints on the dust build-up in galaxies with the DustPedia and DGS samples
Frédéric Galliano, Angelos Nersesian, Simone Bianchi +14
Methods. We have modelled a sample of ~800 nearby galaxies, spanning a wide range of metallicity, gas fraction, specific star formation rate and Hubble stage. We have derived the d…
Local starburst conditions and formation of GRB 980425 / SN 1998bw within a collisional ring
M. Arabsalmani, F. Renaud, S. Roychowdhury +9
We present the first spatially resolved study of molecular gas in the vicinity of a Gamma Ray Burst, using CO(2-1) emission line observations with the Atacama Large Millimetre Arra…
A first quantification of the effects of absorption for HI Intensity Mapping experiments
Sambit Roychowdhury, Clive Dickinson, Ian W. A. Browne
HI Intensity Mapping (IM) will be used to do precision cosmology using many existing and upcoming radio observatories. The signal will be contaminated due to absorption, the larges…
A superluminous supernova in high surface density molecular gas within the bar of a metal-rich galaxy
M. Arabsalmani, S. Roychowdhury, F. Renaud +8
We report the Atacama Large Millimeter/submillimeter Array (ALMA) observations of the metal rich host galaxy of superluminous supernova (SLSN) PTF10tpz, a barred spiral galaxy at z…
The host galaxy of GRB 980425 / SN1998bw: a collisional ring galaxy
M. Arabsalmani, S. Roychowdhury, T. K. Starkenburg +8
We report Giant Metrewave Radio Telescope (GMRT) , Very Large Telescope (VLT) and Spitzer Space Telescope observations of ESO 184G82, the host galaxy of GRB 980425/SN 1998bw, th…
HI 21cm mapping of the host galaxy of AT2018cow: a fast-evolving luminous transient within a ring of high column density gas
Sambit Roychowdhury, Maryam Arabsalmani, Nissim Kanekar
We report Giant Metrewave Radio Telescope (GMRT) HI 21cm imaging of CGCG 137-068, the host galaxy of the fast-evolving luminous transient (FELT) AT2018cow. This is the first study…
A systematic metallicity study of DustPedia galaxies reveals evolution in the dust-to-metal ratios
P. De Vis, A. Jones, S. Viaene +17
Observations of evolution in the dust-to-metal ratio allow us to constrain the dominant dust processing mechanisms. In this work, we present a study of the dust-to-metal and dust-t…
Cosmology with Phase 1 of the Square Kilometre Array; Red Book 2018: Technical specifications and performance forecasts
Square Kilometre Array Cosmology Science Working Group, David J. Bacon, Richard A. Battye +44
We present a detailed overview of the cosmological surveys that will be carried out with Phase 1 of the Square Kilometre Array (SKA1), and the science that they will enable. We hig…
Impact of Simulated 1/f Noise for HI Intensity Mapping Experiments
Stuart Harper, Clive Dickinson, Richard Battye +5
Cosmology has entered an era where the experimental limitations are not due to instrumental sensitivity but instead due to inherent systematic uncertainties in the instrumentation…