J/ApJ/811/58 FIR properties of SDSS 0.1<z<5 quasars (Ma+, 2015)
Co-evolution of extreme star formation and quasars: hints from Herschel and
the Sloan Digital Sky Survey.
Ma Z., Yan H.
<Astrophys. J., 811, 58 (2015)>
=2015ApJ...811...58M 2015ApJ...811...58M (SIMBAD/NED BibCode)
ADC_Keywords: QSOs ; Redshifts ; Photometry, infrared ; X-ray sources ;
Surveys ; Photometry, SDSS
Keywords: galaxies: evolution; galaxies: high-redshift; galaxies: starburst;
infrared: galaxies; quasars: general
Abstract:
Using the public data from the Herschel wide-field surveys, we study
the far-infrared properties of optical-selected quasars from the Sloan
Digital Sky Survey. Within the common area of ∼172deg2, we have
identified the far-infrared counterparts for 354 quasars, among which
134 are highly secure detections in the Herschel 250um band
(signal-to-noise ratios ≥5). This sample is the largest far-infrared
quasar sample of its kind, and spans a wide redshift range of
0.14≤z≤4.7. Their far-infrared spectral energy distributions, which
are due to the cold-dust components within the host galaxies, are
consistent with being heated by active star formation. In most cases
(≳80%), their total infrared luminosities as inferred from only their
far-infrared emissions (LIR(cd)) already exceed 1012L☉,
and thus these objects qualify as ultra-luminous infrared galaxies.
There is no correlation between LIR(cd) and the absolute
magnitudes, the black hole masses or the X-ray luminosities of the
quasars, which further support that their far-infrared emissions are
not due to their active galactic nuclei. A large fraction of these
objects (≳50%-60%) have star-formation rates ≳300M☉/yr. Such
extreme starbursts among optical quasars, however, is only a few
percent. This fraction varies with redshift, and peaks at around z∼2.
Among the entire sample, 136 objects have secure estimates of their
cold-dust temperatures (T), and we find that there is a dramatic
increasing trend of T with increasing LIR(cd). We interpret this
trend as the envelope of the general distribution of infrared galaxies
on the (T, LIR(cd)) plane.
Description:
The parent quasar samples that we used are based on the SDSS Data
Release 7 and 10 quasar catalogs (Schneider et al. 2010, VII/260 and
Paris et al. 2014, VII/270).
We utilized all high-level, publicly available data from the
wide-field Herschel surveys. In all cases we adopted the latest
catalogs released by the survey teams to construct the FIR spectral
energy distributions (SEDs). See section 2 for the details.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 504 354 Herschel-detected SDSS quasar sample
--------------------------------------------------------------------------------
See also:
VII/270 : SDSS quasar catalog: tenth data release (Paris+, 2014)
VIII/95 : Herschel Multi-tiered Extragalactic Survey (Oliver+, 2012)
IX/45 : The Chandra Source Catalog, Release 1.1 (Evans+ 2012)
VII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)
II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)
J/ApJS/210/22 : Herschel Stripe 82 survey (HerS) 1st catalog (Viero+, 2014)
J/ApJ/773/14 : BOSS: quasar luminosity function (Ross+, 2013)
J/ApJ/757/13 : IR SEDs of 24um z∼0.3-3 galaxies (Sajina+, 2012)
J/ApJS/199/3 : The quasars MMT-BOSS pilot survey (Ross+, 2012)
J/MNRAS/415/2336 : Herschel-ATLAS Science Demonstration Catalog (Rigby+, 2011)
J/A+A/532/A90 : PACS Evolutionary Probe (PEP-DR1) catalogs (Lutz+, 2011)
J/ApJS/194/45 : QSO properties from SDSS-DR7 (Shen+, 2011)
J/A+A/495/691 : Multifrequency cat. of blazars Roma-BZCAT (Massaro+, 2009)
J/MNRAS/380/199 : SCUBA Half-Degree Extragalactic Survey. III (Ivison+, 2007)
J/ApJ/666/806 : SED of Spitzer quasars (QUEST) (Netzer+, 2007)
J/AJ/131/2788 : Redshifts in the SFQS survey (Jiang+, 2006)
J/AJ/131/2766 : Quasar luminosity function from SDSS-DR3 (Richards+, 2006)
J/MNRAS/351/1290 : ELAIS: final band-merged catalogue (Rowan-Robinson+, 2004)
J/MNRAS/308/897 : QDOT all-sky IRAS redshift survey (Lawrence+, 1999)
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 18 A18 --- SDSS SDSS quasar IAU name
(HHMMSS.ss+DDMMSS.s; J2000)
21- 54 A34 --- Herschel Herschel counterpart IAU_name
(2HERMES S250 SF, HATLAS, or HerS V14)
57- 78 A22 --- Objid Object ID in this work
80- 89 F10.6 deg RAdeg Herschel 250um RA (J2000)
91- 99 F9.6 deg DEdeg Herschel 250um Declination (J2000)
101-108 F8.4 mJy F250 [0/450] Herschel/SPIRE 250um flux
110-116 F7.4 mJy e_F250 [5/28] 250um flux error
118-125 F8.4 mJy F350 [0/215] Herschel/SPIRE 350um flux
127-133 F7.4 mJy e_F350 [3/12] 350um flux error
135-142 F8.4 mJy F500 [-4/278] Herschel/SPIRE 500um flux
144-150 F7.4 mJy e_F500 [3/34] 500um flux error
152-152 I1 --- SNR5 [0/1] 1: SNR in 250um ≥5 (highly
secure detection); 0: SNR in 250um <5
154-163 F10.6 deg RA100deg ?=-99 100um RA (J2000)
165-174 F10.6 deg DE100deg ?=-99 100um Dec (J2000)
176-183 F8.4 mJy F100 [7/224]?=-99 Herschel/PACS 100um flux
185-192 F8.4 mJy e_F100 [0.8/28]?=-99 100um flux error
194-203 F10.6 deg RA160deg ?=-99 160um RA (J2000)
205-214 F10.6 deg DE160deg ?=-99 160um Dec (J2000)
216-223 F8.4 mJy F160 [11/210]?=-99 Herschel/PACS 160um flux
225-232 F8.4 mJy e_F160 [1/25]?=-99 160um flux error
234-243 F10.6 deg RADR7deg ?=-99 SDSS DR7 RA (J2000)
245-254 F10.6 deg DEDR7deg ?=-99 SDSS DR7 Dec (J2000)
256-263 F8.4 --- z-DR7 [0.1/4.8]?=-99 SDSS DR7 redshift
265-271 F7.3 mag Mi-DR7 [-29.4/-22]?=-99 SDSS DR7 i'-band
absolute magnitude (z=0)
273-282 F10.6 deg RADR10deg ?=-99 SDSS DR10 RA (J2000)
284-293 F10.6 deg DEDR10deg ?=-99 SDSS DR10 Dec (J2000)
295-302 F8.4 --- z-DR10 [0.2/4.7]?=-99 SDSS DR10 redshift
304-310 F7.3 mag Mi-DR10 [-29.8/-21.5]?=-99 SDSS DR10 i'-band
absolute magnitude (z=2)
312-317 F6.2 [Msun] Log(MBH) [7.4/10.6]?=-99 Black hole mass (1)
319-324 F6.2 [Msun] e_Log(MBH) [0.03/2]?=-99 Error for Log(MBH)
326-331 F6.2 [10-7W] Log(LX) [41.7/45.7]?=-99 2-10keV hard-band
X-ray luminosity
333-338 F6.2 --- GAMMA [0.2/2.3]?=-99 Photon index of
X-ray SED
340-343 A4 --- XRAY-REF References of the X-ray data (2)
345-351 F7.4 [Lsun] Log(LIR-MBB) [10.8/14]?=-1 LIR measured using
modified blackbody (MBB) fitting
353-362 F10.7 [Lsun] e_Log(LIR-MBB) [0.02/2.1]?=-1 Error for Log(LIR-MBB)
364-374 A11 --- CHISQ-MBB ?=-1 Chi-square of the MBB fitting
376-383 F8.4 K TMBB [16/170]?=-1 Derived black body
temperature
385-394 F10.6 K e_TMBB [0/344]?=-1 Error for TMBB
396-402 F7.4 K Tpeak [14/98]?=-1 Derived peak temperature
404-411 F8.5 [Msun] Log(MDUST) [7/11]?=-1 Dust mass
413-422 F10.7 [Msun] e_Log(MDUST) [0.05/20]?=-1 Error of dust mass
424-432 F9.6 [Msun/yr] Log(SFR) [0.8/4]?=-1 SFR using Kennicutt
1998ARA&A..36..189K 1998ARA&A..36..189K, modified for
Chabrier IMF
434-441 F8.5 [Msun] Log(MGAS) [9/13]?=-1 Gas mass converted from
dust mass
443-450 F8.5 [yr] Log(TDEP) [5/11]?=-1 Gas depletion time scale
452-456 F5.2 [Lsun] Log(LIR-SK07) [10.6/14.6] LIR measured using SK07
templates (3)
458-461 F4.2 [Lsun] e_Log(LIR-SK07) [0/3] Error for SK07 LIR
463-468 F6.2 --- CHISQ-SK07 Chi-square of the SK07 fitting (3)
470-474 F5.2 [Lsun] Log(LIR-CE01) [10.6/13.6] LIR measured using CE01
templates (3)
476-479 F4.2 [Lsun] e_Log(LIR-CE01) [0.03/0.2] Error of the CE01 LIR
481-486 F6.2 --- CHISQ-CE01 Chi-square of the CE01 fitting (3)
488-492 F5.2 [Lsun] Log(LIR-DH02) [10.8/13.7] LIR measured using DH02
templates (3)
494-497 F4.2 [Lsun] e_Log(LIR-DH02) [0.08/0.3] Error of the DH02 LIR
499-504 F6.2 --- CHISQ-DH02 Chi-square of the DH02 fitting (3)
--------------------------------------------------------------------------------
Note (1): Black hole masses come from Shen et al. (2011, J/ApJS/194/45)
Note (2): References for the X-ray data used to derive Log(LX)
CSC = Evans et al. (2010, Cat. IX/45);
3XMM = Rosen et al (2015arXiv150407051R 2015arXiv150407051R);
BOTH = Data from both surveys used the fit;
NA = Log(LX) not derived.
Note (3): Abbreviated references:
SK07 = Siebenmorgen & Krugel 2007A&A...461..445S 2007A&A...461..445S
CE01 = Chary & Elbaz 2001ApJ...556..562C 2001ApJ...556..562C
DH02 = Dale & Helou 2002ApJ...576..159D 2002ApJ...576..159D
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 21-Dec-2015