J/ApJ/908/165 SDSS-IV/MaNGA ; galaxy stellar and HI masses (Pace+, 2021)
SDSS-IV/MaNGA: Can Impulsive Gaseous Inflows Explain Steep Oxygen Abundance
Profiles and Anomalously Low-Metallicity Regions?
Pace Z.J., Tremonti C., Schaefer A.L., Stark D.V., Witherspoon C.A.,
Masters K.L., Drory N., Zhang K.
<Astrophys. J., 908, 165 (2021)>
=2021ApJ...908..165P 2021ApJ...908..165P
ADC_Keywords: Galaxies; Spectra, optical; Abundances; H I data
Keywords: Disk galaxies ; Galaxies ; Galactic and extragalactic astronomy
; Galaxy chemical evolution ; Galaxy evolution ; Chemical
enrichment ; Neutral hydrogen clouds
Abstract:
Gaseous inflows are necessary suppliers of galaxies star-forming fuel,
but are difficult to characterize at the survey scale. We use
integral-field spectroscopic measurements of gas-phase metallicity and
single-dish radio measurements of total atomic gas mass to estimate
the magnitude and frequency of gaseous inflows incident on
star-forming galaxies. We reveal a mutual correlation between steep
oxygen abundance profiles between 0.25 and 1.5Re, increased
variability of metallicity between 1.25 and 1.75Re, and elevated HI
content at fixed total galaxy stellar mass. Employing a simple but
intuitive inflow model, we find that galaxies with total stellar mass
less than 1010.1M☉ have local oxygen abundance profiles consistent
with reinvigoration by inflows. Approximately 10%-25% of low-mass
galaxies possess signatures of recent accretion, with estimated
typical enhancements of approximately 10%-90% in local gas mass
surface density. Higher-mass galaxies have limited evidence for such
inflows. The large diversity of HI mass implies that inflow-associated
gas ought to reside far from the star-forming disk. We therefore
propose that a combination of high HI mass, steep metallicity profile
between 0.25 and 1.5Re, and wide metallicity distribution function
between 1.25 and 1.75Re be employed to target possible hosts of
inflowing gas for high-resolution radio follow-up.
Description:
MaNGA spectroscopic observations cover the wavelength range
3600-10300Å (R∼2000), and use the BOSS spectrograph, an instrument
at the SDSS 2.5m telescope at Apache Point Observatory.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 81 634 Total galaxy stellar masses, chemical variations,
and HI masses/upper-limits
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See also:
V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)
J/A+A/370/765 : HI synthesis observations in UMa cluster (Verheijen+, 2001)
J/MNRAS/403/683 : GALEX Arecibo SDSS survey (GASS) (Catinella+, 2010)
J/A+A/550/A115 : Oxygen abundances and properties of galaxies (Hughes+, 2013)
J/ApJ/768/74 : PHIBSS; CO observations of SFR galaxies (Tacconi+, 2013)
J/ApJ/794/156 : MgII/FeII absorption for 0.3<z<1.4 galaxies (Rubin+, 2014)
J/A+A/578/A110 : Isolated galaxies, pairs & triplet (Argudo-Fernandez+, 2015)
J/ApJ/806/199 : RRL & continuum data 21 Galactic HII regions (Balser+, 2015)
J/MNRAS/460/2143 : HI size-mass relation of galaxies (Wang+, 2016)
J/AJ/154/86 : MaNGA catalog, DR15 (Wake+, 2017)
J/ApJ/861/49 : ALFALFA extragalactic HI source catalog (Haynes+, 2018)
J/ApJ/862/110 : Fe/H measurements in 70 nearby galaxies (Schruba+, 2018)
J/A+A/623/A5 : DustPedia metallicities and HI masses (De Vis+, 2019)
J/MNRAS/483/2057 : SDSS-IV MaNGA Morphological Catalogues (Fischer+, 2019)
J/ApJ/887/80 : Gas phase oxygen abundances for HII regions (Kreckel+, 2019)
J/A+A/623/A7 : Oxygen abundance in disk galaxies (Zinchenko+, 2019)
J/A+A/635/A69 : HIX galaxy survey. III. (Lutz, 2020)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Plate The plate-ifu designation
12- 20 A9 --- ID The MaNGA-ID designation
22- 30 E9.3 Msun logMHI [8.55/10.7]? log HI mass or upper limit (1)
32 I1 --- f_logMHI [0/2] HI measurement type for logMHI (2)
34- 42 E9.3 Msun logM* [8.98/11.7] log total galaxy stellar mass (3)
44- 48 F5.3 --- z [0.01/0.14] Optical derived spectroscopic
redshift
50- 59 E10.3 [-] logRatio [-1.88/0.59]? log HI mass to stellar mass
ratio
61- 69 E9.3 --- O/H [0.005/0.15] Metallicity dispersion (4)
71- 81 E11.3 --- Decrement [-0.19/0.34] Measured metallicity decrement
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Note (1): Blank if not in the HI follow-up campaign.
Note (2): Flags as follows:
0 = a measurement (252 occurrences)
1 = an upper-limit (110 occurrences)
2 = not targeted (272 occurrences)
Note (3): From Pace+, 2019ApJ...883...83P 2019ApJ...883...83P.
Note (4): In the radial interval 1.25-1.75Re.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 12-Feb-2024