J/ApJ/888/79 Emission-line galaxies from the FIGS survey (Pharo+, 2020)
A catalog of emission-line galaxies from the Faint Infrared Grism Survey:
studying environmental influence on star formation.
Pharo J., Malhotra S., Rhoads J.E., Pirzkal N., Finkelstein S.L., Ryan R.,
Cimatti A., Christensen L., Hathi N., Koekemoer A., Harish S., Smith M.,
Straughn A., Windhorst R., Ferreras I., Gronwall C., Hibon P., Larson R.,
O'Connell R., Pasquali A., Tilvi V.
<Astrophys. J., 888, 79-79 (2020)>
=2020ApJ...888...79P 2020ApJ...888...79P (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, spectra; Spectra, infrared; Equivalent widths; Redshifts
Keywords: Galaxy environments; Galaxy evolution; Emission line galaxies
Abstract:
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
Hαλ6563, [OIII]λλ4959,5007, and
[OII]λ3727 emission lines, for ELGs down to AB(F105W)>28 and
>10-17erg/cm2/s 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 [OIII] 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<0.8 Hα emitters and for
0.8<z<1.3 [OIII] emitters. We find similar rates of close-pair
interaction between ELGs and non-ELGs. For galaxy surface densities
Σ≤30Mpc-2, we find no consistent effect of environment on
star formation.
Description:
In this paper, we present a catalog of emission-line galaxies (ELGs)
derived from an automated search of 1D slitless spectra from the Faint
Infrared Grism Survey (FIGS; Pirzkal+ 2017ApJ...846...84P 2017ApJ...846...84P and
2018ApJ...868...61P 2018ApJ...868...61P) obtained with HST's WFC3 G102 grism.
FIGS (HST Cycle 22, PID:13779, PI S. Malhotra) used the HST WFC3 G102
infrared grism (see Figure 1) to obtain deep slitless spectroscopy of
∼6000 galaxies. FIGS achieved 40-orbit depth in four fields within the
greater GOODS-North and GOODS-South fields, designated GN1, GN2, GS1
(HUDF), and GS2 (HDF-PAR2). Objects in each field were observed in
five different eight-orbit PAs. The grism image at each PA covers a
2.05'x2.27' field of view, and the G102 grism has a resolution of
24.5Å/pix. The total area of coverage over all fields is 17.7arcmin2.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 100 201 The complete catalog of emission-line galaxy
(ELG) fluxes
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See also:
B/hst : HST Archived Exposures Catalog (STScI, 2007)
II/261 : GOODS initial results (Giavalisco+, 2004)
J/AJ/127/3121 : TKRS catalog of GOODS-North Field (Wirth+, 2004)
J/A+A/449/951 : GOODS-MUSIC sample: multicolour catalog (Grazian+, 2006)
J/ApJ/653/1004 : Galaxies at 1.4≲z≲3.0 in GOODS-North Field (Reddy+, 2006)
J/A+A/465/1099 : Redshift catalog of 691 objects in CDFS (Ravikumar+, 2007)
J/AJ/134/169 : Redshifts of UDF emission-line objects (Xu+, 2007)
J/ApJ/668/839 : Spectrophotometric redshifts for 1308 HUDF gal. (Ryan+, 2007)
J/A+A/478/83 : GOODS-South Field VLT/FORS2 redshifts. III. (Vanzella+, 2008)
J/AJ/135/1624 : PEARS emission-line galaxies (Straughn+, 2008)
J/ApJ/682/985 : FIREWORKS photometry of GOODS CDF-S (Wuyts+, 2008)
J/ApJ/689/687 : GOODS-N spectroscopic survey (Barger+, 2008)
J/ApJ/695/1591 : Spectrophotometry in PEARS fields (Pirzkal+, 2009)
J/AJ/138/1022 : Emission-line galaxies from HST PEARS survey (Straughn+, 2009)
J/ApJ/706/158 : Early-type galaxies in PEARS (Ferreras+, 2009)
J/A+A/512/A12 : VLT/VIMOS spectroscopy in GOODS-South field (Balestra+, 2010)
J/ApJS/191/124 : Opt. spectroscopy of ECDF-S X-ray sources (Silverman+, 2010)
J/AJ/141/64 : PEARS emission-line galaxies spectroscopy (Xia+, 2011)
J/ApJS/193/14 : DEEP3 Galaxy Redshift Survey: GOODS-N field (Cooper+, 2011)
J/ApJS/195/10 : The CDF-S survey: 4Ms source catalogs (Xue+, 2011)
J/MNRAS/425/2116 : Arizona CDFS Environment Survey, ACES (Cooper+, 2012)
J/A+A/549/A63 : GMASS photometry (Kurk+, 2013)
J/ApJ/772/48 : Emission-line galaxies from PEARS. II. (Pirzkal+, 2013)
J/A+A/559/A14 : VIMOS VLT Deep Survey final data release (Le Fevre+, 2013)
J/ApJS/214/24 : 3D-HST+CANDELS catalog (Skelton+, 2014)
J/ApJ/801/97 : GOODS-S & UDS stellar mass cat. from CANDELS (Santini+, 2015)
J/AJ/149/178 : Redshift cat. of galaxies in GOODS-South field (Morris+, 2015)
J/ApJ/812/114 : Grism Lens-Amplified Survey from Space. I. (Treu+, 2015)
J/AJ/150/153 : Team Keck Redshift Survey 2 (TKRS2) (Wirth+, 2015)
J/ApJS/225/27 : 3D-HST Survey: grism spectra master catalog (Momcheva+, 2016)
J/A+A/606/A12 : MUSE-Wide survey: 831 emission line galaxies (Herenz+, 2017)
J/A+A/608/A2 : MUSE Hubble Ultra Deep Field Survey. II. (Inami+, 2017)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Field Field identifier (1)
5- 8 I4 --- ID [488/8178] Identifier
10- 19 F10.6 deg RAdeg [53/189.5] Right ascension (J2000)
21- 30 F10.6 deg DEdeg [-28/62.4] Declination (J2000)
32- 35 F4.1 mag F105Wmag [18.4/28.1]? HST/WFC3 F105W continuum AB
magnitude
36 A1 --- f_F105Wmag i=inf
38- 71 A34 --- Line Individual line
73- 79 F7.1 10-21W/m2 Flux [7.2/18082] Flux
in 10-18erg/cm2/s units
81- 86 F6.1 10-21W/m2 e_Flux [3.2/2131] Flux uncertainty
88- 92 F5.3 --- zLine [0.32/2.06] Line-derived redshift
94- 96 I3 0.1nm EW [1/423] Equivalent width in Å units
98-100 I3 0.1nm e_EW [0/174] EW uncertainty
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Note (1): Field as follows:
GN1 = GOODS-North Field 1 (44 occurrences)
GN2 = GOODS-North Field 2 (44 occurrences)
GS1 = GOODS-South field 1 (HUDF; 70 occurrences)
GS2 = GOODS-South field 2 (HDF-PAR2; 43 occurrences)
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 21-Jun-2021