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HI-rich but low star formation galaxies in MaNGA : physical properties and comparison to control samples
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dc.contributor.author | Sharma, Anubhav | |
dc.contributor.author | Masters, Karen L | |
dc.contributor.author | Stark, David V | |
dc.contributor.author | Garland, James | |
dc.contributor.author | Drory, Niv | |
dc.contributor.author | Fraser-McKelvie, Amelia | |
dc.contributor.author | Weijmans, Anne-Marie | |
dc.date.accessioned | 2023-10-09T09:30:07Z | |
dc.date.available | 2023-10-09T09:30:07Z | |
dc.date.issued | 2023-11-01 | |
dc.identifier | 294266913 | |
dc.identifier | 82fdcbfc-5af5-4c69-907d-080a43c1c84c | |
dc.identifier | 85174510015 | |
dc.identifier.citation | Sharma , A , Masters , K L , Stark , D V , Garland , J , Drory , N , Fraser-McKelvie , A & Weijmans , A-M 2023 , ' HI-rich but low star formation galaxies in MaNGA : physical properties and comparison to control samples ' , Monthly Notices of the Royal Astronomical Society , vol. 526 , no. 1 , pp. 1573-1587 . https://doi.org/10.1093/mnras/stad2695 | en |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | Jisc: 1387952 | |
dc.identifier.other | ORCID: /0000-0002-5908-6852/work/144461941 | |
dc.identifier.other | Jisc: 1344036 | |
dc.identifier.uri | https://hdl.handle.net/10023/28512 | |
dc.description | Funding: This publication acknowledges Haverford College Koshland Integrated Natural Sciences Center (KINSC)’s support in summer 2020 and summer 2021 research programmes through a Summer Research Grant. | en |
dc.description.abstract | Gas-rich galaxies are typically star forming. We make use of H i-MaNGA, a programme of H i follow-up for the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey of the Sloan Digital Sky Surveys, to construct a sample of unusual neutral hydrogen (H i, 21 cm)-rich galaxies that have low star formation rates (SFRs), using infrared colour from the Wide-field Infrared Survey Explorer as a proxy for specific SFR. Out of a set of 1575 MaNGA galaxies with H i-MaNGA detections, we find that 83 (5 per cent) meet our selection criteria to be H i rich with low SFR. We construct two stellar mass-matched control samples: H i-rich galaxies with typical SFR (high SF control) and H i-poor galaxies with low SFR (low H i control). We investigate the properties of each of these samples, comparing physical parameters such as ionization state maps, stellar and ionized gas velocity and dispersion, environment measures, metallicity, and morphology to search for the reasons why these unusual H i-rich galaxies are not forming stars. We find evidence for recent external accretion of gas in some galaxies (via high counter-rotating fractions), along with some evidence for active galactic nucleus (AGN) feedback (from a high central low-ionization emission-line region and/or red geyser fraction), and bar quenching (via an enhanced strong bar fraction). Some galaxies in the sample are consistent with simply having their H i in a high angular momentum, large-radius, low-density disc. We conclude that no single physical process can explain all H i-rich, low-SFR galaxies. | |
dc.format.extent | 15 | |
dc.format.extent | 2044911 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | en |
dc.subject | Galaxies: evolution | en |
dc.subject | Catalogues | en |
dc.subject | Surveys | en |
dc.subject | Galaxies: star formation | en |
dc.subject | 3rd-DAS | en |
dc.subject | MCC | en |
dc.title | HI-rich but low star formation galaxies in MaNGA : physical properties and comparison to control samples | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Centre for Contemporary Art | en |
dc.identifier.doi | 10.1093/mnras/stad2695 | |
dc.description.status | Peer reviewed | en |
dc.identifier.url | https://arxiv.org/abs/2309.04854 | en |
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