J/ApJ/887/23 SUPER GOODS. IV. 850um data of CDFS X-ray sources (Barger+, 2019)
A submillimeter perspective on the GOODS fields (SUPER GOODS).
IV. The submillimeter properties of X-ray sources in the CDF-S.
Barger A.J., Cowie L.L., Bauer F.E., Gonzalez-Lopez J.
<Astrophys. J., 887, 23 (2019)>
=2019ApJ...887...23B 2019ApJ...887...23B
ADC_Keywords: Active gal. nuclei; Photometry, millimetric/submm; X-ray sources;
Redshifts; Spectra, optical; Infrared sources
Keywords: Cosmology ; Galaxy evolution ; AGN host galaxies ;
X-ray active galactic nuclei
Abstract:
The Chandra Deep Field (CDF)-S is the deepest X-ray image available
and will remain so for the near future. We provide a spectroscopic
(64.5%; 64% with spectral classifications) and photometric redshift
catalog for the full 7Ms sample, but much of our analysis focuses on
the central (off-axis angles <5.7') region, which contains a large,
faint ALMA sample of 75 >4.5σ 850µm sources. We measure the
850µm fluxes at the X-ray positions using the ALMA images, where
available, or an ultradeep SCUBA-2 map. We find that the full X-ray
sample produces ∼10% of the 850µm extragalactic background light.
We separate the submillimeter-detected X-ray sources into star-forming
galaxies and active galactic nuclei (AGNs) using a star formation rate
(SFR) versus X-ray luminosity calibration for high-SFR galaxies. We
confirm this separation using the X-ray photon indices. We measure the
X-ray fluxes at the accurate positions of the 75 ALMA sources and
detect 70% at >3σ in either the 0.5-2 or 2-7keV bands. However,
many of these may produce both their X-ray and submillimeter emission
by star formation. Indeed, we find that only 20% of the ALMA sources
have intermediate X-ray luminosities (rest-frame 8-28 keV luminosities
of 1042.5-1044erg/s), and none has a high X-ray luminosity
(>1044erg/s). Conversely, after combining the CDF-S with the CDF-N,
we find extreme star formation (SFR>300M☉/yr) in some
intermediate X-ray luminosity sources but not in any high X-ray
luminosity sources. We argue that the quenching of star formation in
the most luminous AGNs may be a consequence of the clearing of gas in
these sources.
Description:
We began with the X-ray catalog of Luo+ 2017, J/ApJS/228/2 based on
the Chandra 7Ms observations of the CDF-S. See Section 2.1.
The Chandra Deep Field-South (CDF-S) has deep 850um observations made
with the SCUBA-2 camera on the James Clerk Maxwell telescope, together
with a large number of targeted ALMA band 7 observations.
Details of these observations and their reductions may be found in
Paper III (Cowie+, 2018, J/ApJ/865/106). Note that some of the ALMA
images are archival observations. See Section 2.2.
We compiled all of the publicly available spectra for our full X-ray
sample of 938 sources (see Section 2.5), together with 377 spectra
that we observed ourselves using the DEIMOS, LRIS, and MOSFIRE
spectrographs on the Keck 10m telescopes. Details of how we reduced
the spectra can be found in Cowie+ (1996AJ....112..839C 1996AJ....112..839C and
2016ApJ...817...57C 2016ApJ...817...57C).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 95 938 X-ray and submillimeter properties, redshifts, and
spectral classes of the full X-ray sample
table2.dat 79 75 X-ray properties and redshifts of the 850um ALMA
sample from Paper III (Cowie+, 2018, J/ApJ/865/106)
--------------------------------------------------------------------------------
See also:
B/chandra : The Chandra Archive Log (CXC, 1999-2014)
III/250 : The VIMOS VLT deep survey (VVDS-DEEP) (Le Fevre+ 2005)
J/AJ/126/539 : The Chandra Deep Fields North and South (Alexander+, 2003)
J/ApJS/155/271 : CDF-South: Optical spectroscopy (Szokoly+, 2004)
J/A+A/437/883 : K20 survey: spectroscopic catalogue (Mignoli+, 2005)
J/A+A/478/83 : GOODS-South Field VLT/FORS2 redshifts. III. (Vanzella+, 2008)
J/A+A/504/751 : GOODS-MUSIC catalog updated version (Santini+, 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/ApJ/742/3 : Photometric catalogs for ECDF-S and CDF-N (Rafferty+, 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/MNRAS/419/2095 : HMXBs in nearby galaxies (Mineo+, 2012)
J/ApJ/769/80 : Spitzer/IRAC observations of five deep fields (Ashby+, 2013)
J/ApJ/768/91 : ALMA observations of LESS submm galaxies (Hodge+, 2013)
J/A+A/549/A63 : GMASS photometry (Kurk+, 2013)
J/ApJ/796/60 : ECDFS galaxies phot. redshifts & counterparts (Hsu+, 2014)
J/ApJS/214/24 : 3D-HST+CANDELS catalog (Skelton+, 2014)
J/ApJS/221/23 : IRAC HUDF and GOODS ultradeep surveys (Labbe+, 2015)
J/AJ/149/178 : Redshift cat. of galaxies in GOODS-South field (Morris+, 2015)
J/ApJ/801/97 : GOODS-S & UDS stellar mass cat. from CANDELS (Santini+, 2015)
J/ApJ/830/51 : FourStar galaxy evolution survey (ZFOURGE) (Straatman+, 2016)
J/ApJ/837/139 : SUPER GOODS. I. Ultradeep SCUBA-2 survey (Cowie+, 2017)
J/A+A/608/A2 : MUSE Hubble Ultra Deep Field Survey. II. (Inami+, 2017)
J/ApJS/228/2 : Chandra Deep Field-South survey: 7Ms sources (Luo+, 2017)
J/MNRAS/464/3369 : SCUBA-2 EGS deep field (Zavala+, 2017)
J/ApJ/865/106 : SUPER GOODS. III. ALMA data for SCUBA-2 sources (Cowie+, 2018)
J/A+A/624/A141 : MUSE-Wide Survey DR1 catalog (Urrutia+, 2019)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- [LBX2017] [8/994] Luo+ 2017, J/ApJS/228/2 index
number (1)
5- 13 F9.6 deg RAdeg [52.93/53.31] Optical/NIR right
ascension (J2000)
15- 24 F10.6 deg DEdeg [-28/-27.6] Optical/NIR declination (J2000)
26- 33 F8.3 10-17mW/m2 F0.5-2 [-16.6/5168] Observed 0.5-2keV X-ray flux
35- 41 F7.2 10-17mW/m2 F2-7 [-114/5898] Observed 2-7keV X-ray flux
43- 52 F10.4 mJy F850 [-3.8/47] Observed 850um flux
54- 57 F4.2 mJy e_F850 [0.1/1.5] Uncertainty in F850
59- 59 I1 --- ALMA [0/3]? ALMA flag (2)
61- 66 F6.4 --- zspec [0/4.8]? Spectroscopic redshift
68- 74 A7 --- Class Spectral class
76- 88 A13 --- Ref Reference(s) (3)
90- 95 F6.4 --- zphot [0.01/6.7]? Photometric redshift (4)
--------------------------------------------------------------------------------
Note (1): The table is ordered by Chandra off-axis angle, such that the 526
sources in the central region X-ray sample appear first, extending
down to source L17 #492.
Note (2): Flag as follows:
1 = submillimeter flux measurement based on ALMA (109 occurrences);
0 = submillimeter flux measurement based on SCUBA-2 (825 occurrences).
Note (3): Reference as follows:
a = our Keck DEIMOS;
b = Vanzella et al. 2008, J/A+A/478/83
c = Balestra et al. 2010A&A...512...12B 2010A&A...512...12B
d = Balestra et al. 2010A&A...512...12B 2010A&A...512...12B
e = Szokoly et al. 2004, J/ApJS/155/271
f = Silverman et al. 2010, J/ApJS/191/124
g = Kurk et al. 2013A&A...549...63K 2013A&A...549...63K
h = Inami et al. 2017, J/A+A/608/A2 and
Urrutia et al. 2019, J/A+A/624/A141
i = McLure et al. 2018MNRAS.479...25M 2018MNRAS.479...25M
j = our Keck MOSFIRE,
k = Kriek et al. 2015ApJS..218...15K 2015ApJS..218...15K
l = our Keck LRIS,
m = Casey et al. 2011MNRAS.411.2739C 2011MNRAS.411.2739C
n = Morris et al. 2015, J/AJ/149/178
o = Cooper et al. 2012, J/MNRAS/425/2116
p = Le Fevre et al. 2005A&A...439..845L 2005A&A...439..845L (VVDS-DEEP, Cat. III/250)
q = Mignoli et al. 2005, J/A+A/437/883
Note (4): From Hsu+ 2014, J/ApJ/796/60, or, if there is no
no photz in Hsu+ 2014, then from Straatman+ 2016, J/ApJ/830/51
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Seq [1/75] ALMA source number from Paper III
4- 6 I3 [-] [LBX2017] [132/854]? Luo+ 2017, J/ApJS/228/2 X-ray
source number
8- 16 F9.6 deg RAdeg ALMA right ascension (J2000)
18- 27 F10.6 deg DEdeg ALMA declination (J2000)
29- 32 F4.2 mJy F850 [0.84/8.93] ALMA 850um flux from Paper III
34- 37 F4.2 mJy e_F850 [0.1/0.9] F850 uncertainty
39- 47 F9.5 10-17mW/m2 F0.5-2 [-3.8/250]? Observed 0.5-2keV X-ray flux
49- 52 F4.2 10-17mW/m2 e_F0.5-2 [0.2/0.8]? F0.5-2 uncertainty
54- 61 F8.4 10-17mW/m2 F2-7 [-4.4/391]? Observed 2-7kev X-ray flux
63- 66 F4.2 10-17mW/m2 e_F2-7 [1.6/4.7]? F2-7 uncertainty
68- 72 F5.3 --- zspec [0.65/3.85]? Spectroscopic redshift
74- 78 F5.3 --- zphot [0.67/6.7]? Photometric redshift
from Hsu+ 2014, J/ApJ/796/60
(or Straatman+ 2016, J/ApJ/830/51)
79 A1 --- f_zphot Flag on zphot (1)
--------------------------------------------------------------------------------
Note (1):
e = We provide an FIR-based redshift estimate from Paper III
(Cowie+, 2018, J/ApJ/865/106) if there is no zspec or high-quality
zphot available.
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Cowie et al. Paper I. 2017ApJ...837..139C 2017ApJ...837..139C Cat. J/ApJ/837/139
Barger et al. Paper II. 2017ApJ...835...95B 2017ApJ...835...95B
Cowie et al. Paper III. 2018ApJ...865..106C 2018ApJ...865..106C Cat. J/ApJ/865/106
Barger et al. Paper IV. 2019ApJ...887...23B 2019ApJ...887...23B This catalog
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 06-May-2021