J/ApJ/910/106 VLA FF survey: star-forming galaxy radii (Jimenez-Andrade+, 2021)
The VLA Frontier Field survey: a comparison of the radio and UV/optical size of
0.3≤z≤3 star-forming galaxies.
Jimenez-Andrade E.F., Murphy E.J., Heywood I., Smail I., Penner K.,
Momjian E., Dickinson M., Armus L., Lazio T.J.W.
<Astrophys. J., 910, 106 (2021)>
=2021ApJ...910..106J 2021ApJ...910..106J
ADC_Keywords: Galaxies, radio; Ultraviolet; Optical; Morphology; Redshifts;
Surveys
Keywords: Galaxy structure ; Galaxy evolution ; High-redshift galaxies ;
Radio continuum emission
Abstract:
To investigate the growth history of galaxies, we measure the
rest-frame radio, ultraviolet (UV), and optical sizes of 98
radio-selected, star-forming galaxies (SFGs) distributed over
0.3≤z≤3 with a median stellar mass of log(M*/M☉)∼10.4. We
compare the size of galaxy stellar disks, traced by rest-frame optical
emission, relative to the overall extent of star formation activity
that is traced by radio continuum emission. Galaxies in our sample are
identified in three Hubble Frontier Fields: MACS J0416.1-2403,
MACSJ0717.5+3745, and MACS J1149.5+2223. Radio continuum sizes are
derived from 3 and 6GHz radio images (≤0.6" resolution,
∼0.9µJy/beam noise level) from the Karl G. Jansky Very Large Array.
Rest-frame UV and optical sizes are derived using observations from
the Hubble Space Telescope and the Advanced Camera for Surveys and
Wide Field Camera 3 instruments. We find no clear dependence between
the 3GHz radio size and stellar mass of SFGs, which contrasts with the
positive correlation between the UV/optical size and stellar mass of
galaxies. Focusing on SFGs with log(M*/M☉)>10, we find that
the radio/UV/optical emission tends to be more compact in galaxies
with high star formation rates (≥100M☉/yr), suggesting that a
central, compact starburst (and/or an active galactic nucleus) resides
in the most luminous galaxies of our sample. We also find that the
physical radio/UV/optical size of radio-selected SFGs with
log(M*/M☉)>10 increases by a factor of 1.5-2 from z∼3 to
z∼0.3, yet the radio emission remains two to three times more compact
than that from the UV/optical. These findings indicate that these
massive, radio-selected SFGs at 0.3≤z≤3 tend to harbor centrally
enhanced star formation activity relative to their outer disks.
Description:
We use the radio continuum maps at 3GHz (S band) and 6GHz (C band)
produced by Heywood+ (2021, J/ApJ/910/105) as part of the VLA Frontier
Fields survey (PI: E. Murphy; VLA/14A-012, 15A-282, 16B-319).
The VLA images at 3GHz of the MACS J0416-2403, MACS J0717+3745, and
MACS J1149+2223 fields have a native resolution measured at the FWHM
of 0.94"x0.51", 0.73"x0.61", and 0.51"x0.48".
We use HST observations taken with the ACS and WFC3 instruments as
part of the HFF program (Lotz+ 2017ApJ...837...97L 2017ApJ...837...97L). We employ the
images from the wide-band filters ACS/F435W, ACS/F606W, ACS/F814W,
WFC3/F105W, WFC3/F125W, and WFC3/F160W. Combined, these images
continuously cover the observed wavelength range of 0.35-1.7um.
See Section 2.2.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 118 113 The radio/UV/optical size of 98 field
(and 15 cluster) galaxies in the HFF
--------------------------------------------------------------------------------
See also:
IX/45 : The Chandra Source Catalog, Release 1.1 (Evans+ 2012)
IX/57 : The Chandra Source Catalog (CSC), Release 2.0 (Evans+, 2019)
J/ApJ/378/65 : 8.4GHz observations of compact starbursts (Condon+ 1991)
J/ApJ/533/611 : 1.4GHz survey in HDF region (Richards+, 2000)
J/ApJ/554/803 : New VLA Sky Survey (NVSS) Cat of IRAS 2Jy Gal. (Yun+ 2001)
J/ApJ/586/794 : Multiwavelength luminosities of galaxies (Bell, 2003)
J/ApJS/155/271 : Chandra Deep Field-South: Opt. spectroscopy (Szokoly+, 2004)
J/MNRAS/358/1159 : Radio sources in HDF and HFF (Muxlow+, 2005)
J/ApJS/188/384 : The VLA-COSMOS survey. IV. (Schinnerer+, 2010)
J/A+A/533/A119 : GOODS-Herschel North and South catalogs (Elbaz+, 2011)
J/A+A/545/A141 : UV selected sources in the GOODS-S field (Buat+, 2012)
J/ApJ/761/97 : Star Formation in Radio Survey (SFRS): 33GHz (Murphy+, 2012)
J/MNRAS/436/3759 : ECDFS sources optical/IR counterparts (Bonzini+, 2013)
J/A+A/553/A80 : Dust effects on phot. parameters in spirals (Pastrav+, 2013)
J/MNRAS/443/1549 : MACSJ0416.1-2403 strong-lensing analysis (Jauzac+, 2014)
J/MNRAS/444/268 : HST Frontier Fields clusters (Richard+, 2014)
J/ApJS/219/15 : Morphologies of z=0-10 galaxies with HST (Shibuya+, 2015)
J/ApJS/224/33 : CLASH-VLT: the FF cluster MACSJ0416.1-2403 (Balestra+, 2016)
J/ApJ/822/78 : VLT/MUSE sp. obs. of MACS J1149.5+2223 (Grillo+, 2016)
J/MNRAS/459/1626 : HST Frontier Fields Herschel sources (Rawle+, 2016)
J/A+A/597/A41 : ALMA Frontier Fields Survey. I. (Gonzalez-Lopez+, 2017)
J/MNRAS/471/210 : eMERGE Survey. I. VLA 5.5GHz sources (Guidetti+, 2017)
J/A+A/602/A2 : VLA-COSMOS 3 GHz Large Project. II. (Smolcic+, 2017)
J/A+A/602/A1 : VLA-COSMOS 3 GHz Large Project (Smolcic+, 2017)
J/ApJ/856/67 : VLA 3GHz radio source cat. in Lockman Hole (Cotton+, 2018)
J/ApJS/235/34 : Deep JVLA imaging of GOODS-N at 20cm (Owen, 2018)
J/ApJ/875/80 : Faint radio sources in GOODS-N & -S. I. 5GHz (Gim+, 2019)
J/A+A/625/A114 : Star-forming gal. over 0.35<z<2.25 (Jimenez-Andrade+, 2019)
J/ApJ/901/74 : ALMA obs. of UDS & GOODS-S massive galaxies (Tadaki+, 2020)
http://science.nrao.edu/science/surveys/vla-ff : NRAO VLA FF survey home page
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 26 A26 --- ID Galaxy identifier
from Heywood+, 2021, J/ApJ/910/105
27 A1 --- f_ID [*] Flag on ID (1)
29- 32 F4.2 --- z [0.18/4.43] Redshift
34 A1 --- n_z Redshift type (s=spectroscopic or
p=photometric)
36- 39 F4.2 --- mu [0.99/6.45] Lensing magnification factor
41- 45 F5.2 [Msun] logM* [8.74/12.3] log stellar mass
47- 51 F5.2 [Msun/yr] logSFR [-0.3/3.8] log total Star Formation Rate
dDerived from 3GHz and far-UV emission
53- 56 F4.2 [Msun/yr] e_logSFR [0.02/0.3] Uncertainty in logSFR
58- 63 F6.2 kpc RUV [0.29/9.33]?=-99 Effective UV radius
65- 70 F6.2 kpc e_RUV [0.01/7.67]?=-99 Uncertainty in RUV
72- 77 F6.2 kpc ROpt [1.2/8.01]?=-99 Effective optical radius
79- 84 F6.2 kpc e_ROpt [0/1.77]?=-99 Uncertainty in ROpt
86- 89 F4.2 kpc R3GHz [0/4.98] Effective 3GHz radius
91- 94 F4.2 kpc e_R3GHz [0.04/2.03] Uncertainty in R3GHz
96- 98 A3 --- f_R3GHz Reliably resolved at 3GHz flag (2)
100-105 F6.2 kpc R6GHz [0/4.03]?=-99 Effective 6 GHz radius
107-112 F6.2 kpc e_R6GHz [0.08/1.08]?=-99 Uncertainty in R6GHz
114-116 A3 --- f_R6GHz Reliably resolved at 6GHz flag (2)
118 A1 --- Env Environment flag (c=cluster or f=field)
--------------------------------------------------------------------------------
Note (1): Flag as follows:
* = Radio source with reported X-ray counterpart
(see Section 4.3 for details).
Note (2): Yes, no or -99 for the 6GHz sources.
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Heywood et al. Comp. paper 2021ApJ...910..105H 2021ApJ...910..105H Cat. J/ApJ/910/105
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 12-Sep-2022