Journal article
WALLABY Pre-Pilot Survey: The effects of angular momentum and environment on the H i gas and star formation properties of galaxies in the Eridanus supergroup
C Murugeshan, VA Kilborn, BQ For, OI Wong, J Wang, T Westmeier, ARH Stevens, K Spekkens, P Kamphuis, L Staveley-Smith, K Lee-Waddell, D Kleiner, BS Koribalski, ME Cluver, SH Oh, J Rhee, B Catinella, TN Reynolds, H Dénes, A Elagali
Monthly Notices of the Royal Astronomical Society | Published : 2021
Abstract
We use high-resolution ASKAP observations of galaxies in the Eridanus supergroup to study their H i, angular momentum, and star formation properties, as part of the WALLABY pre-pilot survey efforts. The Eridanus supergroup is composed of three sub-groups in the process of merging to form a cluster. The main focus of this study is the Eridanus (or NGC 1395) sub-group. The baryonic specific angular momentum-baryonic mass (jb-Mb) relation for the Eridanus galaxies is observed to be an unbroken power law of the form j{b}\propto M{b}0.57 ± 0.05, with a scatter of ∼0.10 ± 0.01 dex, consistent with previous works. We examine the relation between the atomic gas fraction, fatm, and the integrated ato..
View full abstractRelated Projects (1)
Grants
Awarded by Australian Research Council
Funding Acknowledgements
We thank the anonymous referee for their useful comments which considerably improved the quality of the paper. CM would like to thank Christopher Fluke, Robert D.zud.zar, and Elaine Sadler for useful discussions and comments. CMis supported by the Swinburne University Postgraduate Award (SUPRA). ARHS acknowledges receipt of the JimBuckee Fellowship at ICRAR-UWA. PKis partially supported by the BMBF project 05A17PC2 for D-MeerKAT. MEC is a recipient of an Australian Research Council Future Fellowship (project No. FT170100273) funded by the Australian Government. SHOacknowledges a support from the NationalResearch Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT: MSIT) (No. NRF-2020R1A2C1008706). This research was supported by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. The Australian SKA Pathfinder is part of the Australia Telescope National Facility which ismanaged by CSIRO. Operation of ASKAP is funded by the Australian Government with support from the National Collaborative Research Infrastructure Strategy. ASKAP uses the resources of the Pawsey Supercomputing Centre. Establishment of ASKAP, the Murchison Radio-astronomy Observatory and the Pawsey Supercomputing Centre are initiatives of the Australian Government, with support from the Government of WesternAustralia and the Science and Industry Endowment Fund. We acknowledge the Wajarri Yamatji people as the traditional owners of the Observatory site. This publication makes use of data products from the TwoMicron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This publication makes use of data products from the Widefield Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. Parts of the results in this work make use of the colourmaps in the CMasher package (van der Velden 2020).