J/ApJS/231/7 The VISTA-CFHT Stripe 82 NIR survey (VICS82) (Geach+, 2017)
VICS82: the VISTA-CFHT Stripe 82 near-infrared survey.
Geach J.E., Lin Y.-T., Makler M., Kneib J.-P., Ross N.P., Wang W.-H.,
Hsieh B.-C., Leauthaud A., Bundy K., McCracken H.J., Comparat J.,
Caminha G.B., Hudelot P., Lin L., Van Waerbeke L., Pereira M.E.S., Mast D.
<Astrophys. J. Suppl. Ser., 231, 7-7 (2017)>
=2017ApJS..231....7G 2017ApJS..231....7G (SIMBAD/NED BibCode)
ADC_Keywords: Surveys; Photometry, infrared
Keywords: catalogs; infrared: general; surveys
Abstract:
We present the VISTA-CFHT Stripe 82 (VICS82) survey: a near-infrared
(J+Ks) survey covering 150 square degrees of the Sloan Digital Sky
Survey (SDSS) equatorial Stripe 82 to an average depth of J=21.9 AB
mag and Ks=21.4 AB mag (80% completeness limits; 5σ
point-source depths are approximately 0.5mag brighter). VICS82
contributes to the growing legacy of multiwavelength data in the
Stripe 82 footprint. The addition of near-infrared photometry to the
existing SDSS Stripe 82 coadd ugriz photometry reduces the scatter in
stellar mass estimates to δlog(M*)∼0.3dex for galaxies with
M*>109M☉ at z∼0.5, and offers improvement compared to
optical-only estimates out to z∼1, with stellar masses constrained
within a factor of approximately 2.5. When combined with other
multiwavelength imaging of the Stripe, including moderate-to-deep
ultraviolet (GALEX), optical and mid-infrared (Spitzer-IRAC) coverage,
as well as tens of thousands of spectroscopic redshifts, VICS82 gives
access to approximately 0.5Gpc3 of comoving volume. Some of the main
science drivers of VICS82 include (a) measuring the stellar mass
function of L* galaxies out to z∼1; (b) detecting
intermediate-redshift quasars at 2≲z≲3.5; (c) measuring the stellar
mass function and baryon census of clusters of galaxies, and (d)
performing cross-correlation experiments of cosmic microwave
background lensing in the optical/near-infrared that link stellar mass
to large-scale dark matter structure. Here we define and describe the
survey, highlight some early science results, and present the first
public data release, which includes an SDSS-matched catalog as well as
the calibrated pixel data themselves.
Description:
The VISTA-CFHT Stripe 82 (VICS82) (VICS82) survey is conducted with
the CFHT WIRCam instrument and with the Visible Infrared Survey
Telescope for Astronomy (VISTA) VIRCAM instrument in J- and Ks
broadband filters.
The VICS82 coverage of Stripe 82 is a near-contiguous ∼150deg2
region defined by the boundaries 3hr and 22.2hr in RA and
-1<δ<1deg in DEC.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
vics82.dat 530 24977877 *Full VICS82 catalogue limited to Ks<22 AB mag
--------------------------------------------------------------------------------
Note on vics82.dat: Matched to SDSS Stripe 82 deep coadd photometry
(Galactic extinction corrected) and DR9 spectroscopy.
--------------------------------------------------------------------------------
Description of file: VICS82FULLSDSSFEB2017K22.FITS available in the FTP is
the original catalog in FITS format (http://uhhpc.herts.ac.uk/vics82/).
See also:
VII/250 : The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)
II/261 : GOODS initial results (Giavalisco+, 2004)
III/250 : The VIMOS VLT deep survey (VVDS-DEEP) (Le Fevre+ 2005)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
V/141 : Light-Motion Curve Catalogue (LMCC) in Stripe 82 (Bramich+ 2008)
II/319 : UKIDSS-DR9 LAS, GCS and DXS Surveys (Lawrence+ 2012)
II/373 : The fourth UltraVISTA data release (DR4) (Moneti+, 2019)
III/334 : VISTA Deep Extragalactic Observations (VIDEO) (Jarvis+, 2013)
J/MNRAS/401/1429 : WiggleZ dark energy survey (DR1) (Drinkwater+, 2010)
J/AJ/141/105 : NIR-matched quasar catalog (Peth+, 2011)
J/MNRAS/413/3059 : 4098 galaxy clusters in SDSS Stripe 82 (Geach+, 2011)
J/AJ/142/3 : 1.4GHz observations of Stripe 82 (Hodge+, 2011)
J/ApJS/199/3 : The quasars MMT-BOSS pilot survey (Ross+, 2012)
J/A+A/544/A156 : UltraVISTA Catalogue Release DR1 (McCracken+, 2012)
J/ApJ/768/105 : z∼5 QSO LF from SDSS Stripe 82 (McGreer+, 2013)
J/ApJS/210/22 : Herschel Stripe 82 survey (HerS) first catalog (Viero+, 2014)
J/ApJ/794/120 : Sloan Digital Sky Survey coadd. Stripe 82 (Annis+, 2014)
J/A+A/578/A79 : Galaxy clusters in SDSS Stripe 82 (Durret+, 2015)
J/ApJ/817/172 : X-ray Observations of Stripe 82 (LaMassa+, 2016)
J/ApJS/225/1 : SpIES: the Spitzer IRAC Equatorial Survey (Timlin+, 2016)
J/MNRAS/457/2703 : Local SDSS galaxies in Herschel Stripe 82 (Rosario+, 2016)
J/MNRAS/462/1989 : HerMES Large Mode Survey catalogue (Asboth+, 2016)
J/ApJ/861/37 : Luminous WISE-selected QSOs in SDSS Stripe 82 (Glikman+, 2018)
J/ApJ/876/50 : X-ray+MIR AGNs in Stripe 82 with eBOSS sp. (LaMassa+, 2019)
J/ApJS/267/17 : FUV to FIR phot. of massive gal. in SDSS Stripe 82 (Li+, 2023)
Byte-by-byte Description of file: vics82.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 A6 --- --- [VICS82/blah ] 313,883 sources are
identified as "blah"
7- 25 A19 --- VICS82 ? VICS82 identifier (JHHMMSS.ss+DDMMSS.s) or
NULL for 313,883 sources "blah"
27- 40 F14.10 deg RAdeg [4.3e-7/360] Right ascension (J2000)
(ALPHA_J2000)
42- 54 F13.10 deg DEdeg [-1.3/1.3] Declination (J2000) (DELTA_J2000)
56- 69 A14 --- Img Image file name (IMAGE)
71- 80 E10.4 --- SNR [-164.5/1e+30] Signal to noise ratio
(SNR_WIN)
82- 88 F7.4 mag mag [5.7/36]? Total magnitude (MAG_AUTO)
90- 96 F7.4 mag magAp1 [13.2/37]? 1" aperture magnitude
(MAG_APER1)
98-104 F7.4 mag magAp1.5 [12.3/38.5]? 1.5" aperture magnitude
(MAG_APER2)
106-112 F7.4 mag magAp2 [11.7/41.6]? 2" aperture magnitude
(MAG_APER3)
114-120 F7.4 mag magAp2.5 [11.3/40.8]? 2.5" aperture magnitude
(MAG_APER4)
122-128 F7.4 mag magAp3 [11/39.3]? 3" aperture magnitude
(MAG_APER5)
130-137 F8.6 --- S/G [2e-5/1] S/G classifier output (1=star)
(CLASS_STAR)
139-146 F8.4 mag Jmag [7/99]? J-band total magnitude (JMAG_AUTO)
148-155 F8.4 mag JmagAp1 [13.5/99]? 1" aperture J-band magnitude
(JMAG_APER1)
157-164 F8.4 mag JmagAp1.5 [12.6/99]? 1.5" aperture J-band magnitude
(JMAG_APER2)
166-173 F8.4 mag JmagAp2 [12/99]? 2" aperture J-band magnitude
(JMAG_APER3)
175-182 F8.4 mag JmagAp2.5 [11.6/99]? 2.5" aperture J-band magnitude
(JMAG_APER4)
184-191 F8.4 mag JmagAp3 [11.2/99]? 3" aperture J-band magnitude
(JMAG_APER5)
193-202 E10.4 --- JSNR [-689.5/1e+30]? Signal to noise ratio in J
(JSNR_WIN)
204-222 I19 --- objID ? SDSS objID (objID)
224-237 F14.10 deg RASdeg ? SDSS-DR9 right ascension (J2000) (ra)
239-251 F13.10 deg DESdeg ? SDSS-DR9 declination (J2000) (dec)
253-259 F7.4 mag umag0 [11.7/38.5]? Dereddened u-band magnitude
(dered_u)
261-267 F7.4 mag gmag0 [9.9/38.8]? Dereddened g-band magnitude
(dered_g)
269-275 F7.4 mag rmag0 [10.7/38]? Dereddened r-band magnitude
(dered_r)
277-286 F10.4 mag imag0 [10.4/42.7]? Dereddened i-band magnitude
(dered_i)
288-297 F10.4 mag zmag0 [11/36.7]? Dereddened z-band magnitude
(dered_z)
299-306 F8.4 mag e_umag [0.002/166]? Model magnitude in u filter,
AB scale, uncertainty (modelMagErr_u)
308-315 F8.4 mag e_gmag [0.001/192]? Model magnitude in g filter,
AB scale, uncertainty (modelMagErr_g)
317-324 F8.4 mag e_rmag [0.001/254]? Model magnitude in r filter,
AB scale, uncertainty (modelMagErr_r)
326-335 F10.4 mag e_imag [0.001/66]? Model magnitude in i filter,
AB scale, uncertainty (modelMagErr_i)
337-346 F10.4 mag e_zmag [0.001/181]? Model magnitude in z filter,
AB scale, uncertainty (modelMagErr_z)
348-366 A19 --- SDSS9 SDSS DR9 IAU name (JHHMMSS.ss+DDMMSS.s)
368-376 F9.6 deg DESdeg2 ? SDSS DR9 declination (J2000) (DEdeg)
378 I1 --- cl [0/6]? SDSS class (1)
380 I1 --- q_mode [0/1] SDSS clean photometry flag
382-397 A16 --- Flags Flags
399 I1 --- Q [3]? Quality of the observation: 3=good
(Always "3" or blank)
401-409 F9.4 yr ObsDate [1998.71/2009.71]? Observing date
in decimal years
411-414 I4 mas/yr pmRA [-727/823]? SDSS proper motion in RA
416-418 I3 mas/yr e_pmRA [2/183]? pmRA uncertainty
420-424 I5 mas/yr pmDE [-1163/920]? SDSS proper motion in DEC
426-428 I3 mas/yr e_pmDE [2/183]? pmDE uncertainty
430-448 I19 --- SpObjID [0/4920432000009434112]? SDSS-DR9 SpObjID
450-458 F9.6 --- zsp [-0.011/7.1]? SDSS spectroscopic redshift
460-468 F9.6 --- e_zsp [-6/10]? Redshift uncertainty
470-472 I3 --- f_zsp [0/134]? Flag on zsp (2)
474-492 A19 --- spType SDSS source type (3)
494-499 A6 --- spCl SDSS spectroscopic class (class):
GALAXY (69,016 sources),
QSO (14,608 sources) or
STAR (46,597 sources)
501-521 A21 --- subClass SDSS spectroscopic subclass (subClass) (4)
523-530 F8.6 arcsec Sep [0.00014/2]? Separation between VICS82 and
SDSS DR9 source (angDist)
--------------------------------------------------------------------------------
Note (1): The type (class) is numbered as follows:
0 = Unknown: Object type is not known.
3 = Galaxy: An extended object composed of many stars and other matter
(2,382,793 occurrences)
6 = Star: A a self-luminous gaseous celestial body (1,213,339 occurrences)
Note (2): the "zwarning" flag is a number made of the following bits:
1 (2^0) = sky fiber
2 (2^1) = too little wavelength coverage
4 (2^2) = chi-squared of best fit is too close to that of second best
8 (2^3) = synthetic spectrum is negative
16 (2^4) = fraction of points more than 5 sigma away from best model
is too large (>5%)
32 (2^5) = chi-squared minimum at edge of the redshift fitting range
64 (2^6) = a QSO line exhibits negative emission (triggered only in QSO
spectra if CIV, CIII, MgII, Hbeta, or Halpha has
lineArea+3*(lineArea)<0)
128 (2^7) = the fiber was unplugged, so no spectrum obtained
Note (3): the spectroscopic Source types are summarized in the
"type9.htx" file; see also the SDSS DR12 help:
http://skyserver.sdss.org/dr12/en/help/browser/browser.aspx#&history=enum+AncillaryTarget1+E
Note (4): The spectroscopic subclass includes:
* for GALAXY classes: BROADLINE, STARFORMING, STARBURST, AGN
* for STAR classes: MK spectral sub-classes, CV=Catataclysmic Variable,
Carbon stars (Carbon, Carbon_lines), white dwarfs (WD, WDcooler,
WDhotter, WDmagnetic, CarbonWD, CalciumWD)
--------------------------------------------------------------------------------
History:
Downladed from: http://uhhpc.herts.ac.uk/vics82/
(End) Emmanuelle Perret [CDS] 10-May-2019