WALLABY Pre-Pilot Survey: HI Content of the Eridanus Supergroup
arXiv:2108.04410 · doi:10.1093/mnras/stab2257
Abstract
We present observations of the Eridanus supergroup obtained with the Australian Square Kilometre Array Pathfinder (ASKAP) as part of the pre-pilot survey for the Widefield ASKAP L-band Legacy All-sky Blind Survey (WALLABY). The total number of detected HI sources is 55, of which 12 are background galaxies not associated with the Eridanus supergroup. Two massive HI clouds are identified and large HI debris fields are seen in the NGC 1359 interacting galaxy pair, and the face-on spiral galaxy NGC 1385. We describe the data products from the source finding algorithm and present the basic parameters. The presence of distorted HI morphology in all detected galaxies suggests ongoing tidal interactions within the subgroups. The Eridanus group has a large fraction of HI deficient galaxies as compared to previously studied galaxy groups. These HI deficient galaxies are not found at the centre of the group. We find that galaxies in the Eridanus supergroup do not follow the general trend of the atomic gas fraction versus stellar mass scaling relation, which indicates that the scaling relation changes with environmental density. In general, the majority of these galaxies are actively forming stars.
arXiv comment20 pages, 14 Figures, 5 Tables. Accepted by MNRAS. Supplementary material is published online
References in corpus (87)
- Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
- Galactic Stellar and Substellar Initial Mass Function
- Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
- Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
- Cosmic Star Formation History
- Correcting for the Effects of Interstellar Extinction
- The Galaxy Evolution Explorer: A Space Ultraviolet Survey Mission
- The Optical and Near-Infrared Properties of Galaxies: I. Luminosity and Stellar Mass Functions
- How Do Galaxies Get Their Gas?
- Overview of the DESI Legacy Imaging Surveys
- The Cosmic Microwave Background Spectrum from the Full COBE/FIRAS Data Set
- THINGS: The HI Nearby Galaxy Survey
- The Arecibo Legacy Fast ALFA Survey: I. Science Goals, Survey Design and Strategy
- Galaxy Star-Formation as a Function of Environment in the Early Data Release of the Sloan Digital Sky Survey
- The HIPASS Catalogue - I. Data Presentation
- The 6dF Galaxy Survey: Samples, Observational Techniques and the First Data Release
- Resolved stellar mass maps of galaxies. I: method and implications for global mass estimates
- xCOLD GASS: the complete IRAM-30m legacy survey of molecular gas for galaxy evolution studies
- Multi-Scale CLEAN deconvolution of radio synthesis images
- Cosmicflows-3
- A Digital Archive of HI 21 cm Line Spectra of Optically-targeted Galaxies
- The Properties of Poor Groups of Galaxies: I. Spectroscopic Survey and Results
- HI in Local Group Dwarf Galaxies and Stripping by the Galactic Halo
- The Absolute Magnitude of the Sun in Several Filters
- xGASS: Total cold gas scaling relations and molecular-to-atomic gas ratios of galaxies in the local Universe
- The Morphology - Density Relation in z ~ 1 Clusters
- H I, H II, and R-Band Observations of a Galactic Merger Sequence
- VLA HI Observations of Gas Stripping in the Virgo Cluster Spiral NGC 4522
- Australian Square Kilometre Array Pathfinder: I. System Description
- The Rapid ASKAP Continuum Survey I: Design and First Results
- Where is the Neutral Atomic Gas in Hickson Groups?
- SoFiA: a flexible source finder for 3D spectral line data
- Science With The Australian Square Kilometre Array Pathfinder
- FIGGS: Faint Irregular Galaxies GMRT Survey - Overview, observations and first results
- WALLABY -- An SKA Pathfinder HI Survey
- The Dawes Review 9: The role of cold gas stripping on the star formation quenching of satellite galaxies
- Cold gas properties of the Herschel Reference Survey. II. Molecular and total gas scaling relations
- ProFound: Source Extraction and Application to Modern Survey Data
- Compact groups of galaxies
- Galaxy Groups: A 2MASS Catalog
- SoFiA 2 -- An automated, parallel HI source finding pipeline for the WALLABY survey
- The Local Group dwarf Leo T: HI on the brink of star formation
- Leo P: An Unquenched Very Low-Mass Galaxy
- Caught in the Act: Strong, Active Ram Pressure Stripping in Virgo Cluster Spiral NGC 4330
- Gas, Stars and Star Formation in ALFALFA Dwarf Galaxies
- Tracing HI Beyond the Local Universe
- Variation of galactic cold gas reservoirs with stellar mass
- The Local Volume HI Survey (LVHIS)
- New Insights from HST Studies of Globular Cluster Systems II: Analysis of 29 S0 Systems
- The HI Content of Spirals. I. Field-Galaxy HI Mass Functions and HI Mass-Optical Size Regression
- The Australian Square Kilometre Array Pathfinder: Performance of the Boolardy Engineering Test Array
- The peculiar velocity field up to by forward-modeling Cosmicflows-3 data
- New HI scaling relations to probe the HI content of galaxies via global HI-deficiency maps
- How Do Galaxies Get Their Gas?
- Southern GEMS groups II: HI distribution, mass functions and HI deficient galaxies
- The Star Forming Main Sequence of Dwarf Low Surface Brightness Galaxies
- Angular Momentum Regulates Atomic Gas Fractions of Galactic Disks
- Eridanus - A Supergroup in the Local Universe?
- The Globular Cluster Luminosity Function: New Progress in Understanding an Old Distance Indicator
- Evolution of the Early-Type Galaxy Fraction in Clusters since z = 0.8
- Using negative detections to estimate source finder reliability
- An Imaging Study of the Globular Cluster Systems of NGC 1407 and NGC 1400
- WALLABY Early Science - III. An HI Study of the Spiral Galaxy NGC 1566
- Deep neutral hydrogen observations of Leo T with the Westerbork Synthesis Radio Telescope
- Galaxy Distances in the Nearby Universe: Corrections For Peculiar Motions
- The AMIGA sample of isolated galaxies XIII. The HI content of an almost "nurture free" sample
- The SAMI Galaxy Survey: Satellite galaxies undergo little structural change during their quenching phase
- The Local Volume HI Survey: star formation properties
- WALLABY Early Science - II. The NGC 7232 galaxy group
- Evidence for galaxies being pre-processed before accreted into clusters
- Green Bank Telescope observations of low column density HI around NGC 2997 and NGC 6946
- On the neutral gas content of nine new Milky Way satellite galaxy candidates
- The Cosmic V-Web
- The Magellanic Stream and Debris Clouds
- WALLABY Early Science -- IV. ASKAP HI imaging of the nearby galaxy IC 5201
- The fraction of early-type galaxies in low redshift groups and clusters of galaxies
- Early Observations of the MHONGOOSE Galaxies: Getting Ready for MeerKAT
- A deep Parkes HI survey of the Sculptor group and filament: HI mass function and environment
- WALLABY Early Science - I. The NGC 7162 Galaxy Group
- Gaseous Tidal Debris found in the NGC 3783 Group
- Tracing the Assembly History of NGC 1395 through its Globular Cluster System
- GMRT HI observations of the Eridanus group of galaxies
- Galactic Recycling: The HI Ring Around NGC 1533
- The HI content of the Eridanus group of galaxies
- The Ursa Major cluster redefined as a `supergroup'
- Angular momentum-related probe of cold gas deficiencies
- Recycling of ghost galaxies: The origin of giant HI ring around NGC 1533
Cited by in corpus (14)
- WALLABY Pre-Pilot Survey: The effects of tidal interaction on radial distribution of color in galaxies of the Eridanus supergroup
- ALMA/ACA CO Survey of the IC 1459 and NGC 4636 Groups: Environmental Effects on the Molecular Gas of Group Galaxies
- WALLABY Pre-Pilot and Pilot Survey: the Tully Fisher Relation in Eridanus, Hydra, Norma and NGC4636 fields
- FAST-ASKAP Synergy: Quantifying Coexistent Tidal and Ram Pressure Strippings in the NGC 4636 Group
- The CMB Cold Spot as predicted by foregrounds around nearby galaxies
- WALLABY Pre-Pilot Survey: The effects of angular momentum and environment on the HI gas and star formation properties of galaxies in the Eridanus supergroup
- The SAMI Galaxy Survey: Using concentrated star-formation and stellar population ages to understand environmental quenching
- A serendipitous discovery of HI-rich galaxy groups with MeerKAT
- Star formation concentration as a tracer of environmental quenching in action: a study of the Eagle and C-Eagle simulations
- The technological and scientific development of ASKAP
- In search for the Local Universe dynamical homogeneity scale with CF4++ peculiar velocities
- Upcoming SKA precursor surveys and sensitivity to HI mass function
- HI Content of Group Galaxies from the FAST All Sky HI Survey
- Recent Developments on the HI Gas of Low-Redshift Galaxies Seen by the 21cm Emission Lines