A Catalog of Emission-line Galaxies from the Faint Infrared Grism Survey: Studying Environmental Influence on Star Formation
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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A Catalog of Emission-line Galaxies from the Faint Infrared Grism Survey : Studying Environmental Influence on Star Formation. / Pharo, John; Malhotra, Sangeeta; Rhoads, James E.; Pirzkal, Norbert; Finkelstein, Steven L.; Ryan, Russell; Cimatti, Andrea; Christensen, Lise; Hathi, Nimish; Koekemoer, Anton; Harish, Santosh; Smith, Mark; Straughn, Amber; Windhorst, Rogier; Ferreras, Ignacio; Gronwall, Caryl; Hibon, Pascale; Larson, Rebecca; O'Connell, Robert; Pasquali, Anna; Tilvi, Vithal.
I: Astrophysical Journal, Bind 888, Nr. 2, 79, 10.01.2020.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - A Catalog of Emission-line Galaxies from the Faint Infrared Grism Survey
T2 - Studying Environmental Influence on Star Formation
AU - Pharo, John
AU - Malhotra, Sangeeta
AU - Rhoads, James E.
AU - Pirzkal, Norbert
AU - Finkelstein, Steven L.
AU - Ryan, Russell
AU - Cimatti, Andrea
AU - Christensen, Lise
AU - Hathi, Nimish
AU - Koekemoer, Anton
AU - Harish, Santosh
AU - Smith, Mark
AU - Straughn, Amber
AU - Windhorst, Rogier
AU - Ferreras, Ignacio
AU - Gronwall, Caryl
AU - Hibon, Pascale
AU - Larson, Rebecca
AU - O'Connell, Robert
AU - Pasquali, Anna
AU - Tilvi, Vithal
PY - 2020/1/10
Y1 - 2020/1/10
N2 - We present a catalog of 208 0.3 z <2.1 emission-line galaxies (ELGs) selected from 1D slitless spectroscopy obtained using Hubble's WFC3 G102 grism, as part of the Faint Infrared Grism Survey. We identify ELG candidates by searching for significant peaks in all continuum-subtracted G102 spectra and, where possible, confirm candidates by identifying consistent emission lines in other available spectra or with published spectroscopic redshifts. We provide derived emission-line fluxes and errors, redshifts, and equivalent widths for H alpha lambda 6563, [O iii] lambda lambda 4959, 5007, and [O ii] lambda 3727 emission lines, for ELGs down to AB(F105W) >28 and >10(-17) erg cm(-2) s(-1) line flux. We use the resulting line catalog to investigate a possible relationship between line emission and a galaxy's environment. We use seventh-nearest-neighbor distances to investigate the typical surroundings of ELGs compared to non-ELGs, and we find that [O iii] emitters are preferentially found at intermediate galaxy densities near galaxy groups. We characterize these ELGs in terms of the galaxy specific star formation rate (SFR) versus stellar mass and find no significant influence of environment on that relation. We calculate SFRs and find no dependence of SFR on local galaxy surface density for 0.3 z alpha emitters and for 0.8 z iii] emitters. We find similar rates of close-pair interaction between ELGs and non-ELGs. For galaxy surface densities sigma
AB - We present a catalog of 208 0.3 z <2.1 emission-line galaxies (ELGs) selected from 1D slitless spectroscopy obtained using Hubble's WFC3 G102 grism, as part of the Faint Infrared Grism Survey. We identify ELG candidates by searching for significant peaks in all continuum-subtracted G102 spectra and, where possible, confirm candidates by identifying consistent emission lines in other available spectra or with published spectroscopic redshifts. We provide derived emission-line fluxes and errors, redshifts, and equivalent widths for H alpha lambda 6563, [O iii] lambda lambda 4959, 5007, and [O ii] lambda 3727 emission lines, for ELGs down to AB(F105W) >28 and >10(-17) erg cm(-2) s(-1) line flux. We use the resulting line catalog to investigate a possible relationship between line emission and a galaxy's environment. We use seventh-nearest-neighbor distances to investigate the typical surroundings of ELGs compared to non-ELGs, and we find that [O iii] emitters are preferentially found at intermediate galaxy densities near galaxy groups. We characterize these ELGs in terms of the galaxy specific star formation rate (SFR) versus stellar mass and find no significant influence of environment on that relation. We calculate SFRs and find no dependence of SFR on local galaxy surface density for 0.3 z alpha emitters and for 0.8 z iii] emitters. We find similar rates of close-pair interaction between ELGs and non-ELGs. For galaxy surface densities sigma
KW - Galaxy environments
KW - Galaxy evolution
KW - Emission line galaxies
KW - ULTRA DEEP FIELD
KW - FORMATION-DENSITY RELATION
KW - LYMAN BREAK GALAXIES
KW - STELLAR MASS
KW - SPECTROSCOPIC SURVEY
KW - REDSHIFT SURVEY
KW - OPTICAL SPECTROSCOPY
KW - FORMATION HISTORY
KW - DUST EXTINCTION
KW - TO 1
U2 - 10.3847/1538-4357/ab5f5c
DO - 10.3847/1538-4357/ab5f5c
M3 - Journal article
VL - 888
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 2
M1 - 79
ER -
ID: 247444797