J/MNRAS/456/1359ivo://CDS.VizieR/J/MNRAS/456/1359doi:10.26093/cds/vizier.74561359CDSFliri J.Trujillo I.2024-08-15T20:17:14Z2018-01-19T09:02:01ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsurveysvisible-astronomysloan-photometryWe present new deep co-adds of data taken within Stripe 82 of the Sloan Digital Sky Survey (SDSS), especially stacked to reach the faintest surface brightness limits of this data set. Stripe 82 covers 275 square degrees within -50{deg}<=RA<=+60{deg} and -1.26{deg}<=DE<=+1.25{deg}. We discuss the steps of our reduction which puts special emphasis on preserving the characteristics of the background (sky + diffuse light) in the input images using a non-aggressive sky subtraction strategy. Our reduction reaches a limit of ~28.5 mag/arcsec^2^ (3{sigma}, 10x10 arcsec^2^) in the r band. The effective surface brightness limit (50 per cent completeness for exponential light distribution) lies at <{mu}e(r)>~25.5mag/arcsec^2^. For point sources, we reach 50 per cent completeness limits (3{sigma} level) of (24.2, 25.2, 24.7, 24.3, 23.0) mag in (u, g, r, i, z). This is between 1.7 and 2.0mag deeper than the single-epoch SDSS releases. The co-adds show point spread functions (PSFs) with median full width at half-maximum values ranging from 1-arcsec in i and z to 1.3-arcsec in the u band. The imaging data are made publicly available at http://www.iac.es/proyecto/stripe82. The release includes deep co-adds and representations of the PSF for each field. Additionally, we provide object catalogues with stars and galaxies confidently separated until g~23mag. The IAC Stripe 82 co-adds offer a rather unique possibility to study the low surface brightness Universe, exemplified by the discovery of stellar streams around NGC 0426 and NGC 0936. We also discuss further science cases like stellar haloes and disc truncations, low surface brightness galaxies, the intracluster light in galaxy clusters and the diffuse emission of Galactic dust known as Galactic Cirrus.2016MNRAS.456.1359Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/456/1359CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/141 : Light-Motion Curve Catalogue (LMCC) in Stripe 82J/AJ/134/973 : SDSS Stripe 82 star catalogs (Ivezic+, 2007)J/MNRAS/382/515 : Stripe 82 ultracool & halo WD candidates (Vidrih+, 2007)J/MNRAS/398/1757 : RR Lyraes in SDSS stripe 82 (Watkins+, 2009)J/ApJ/708/717 : Light curve templates of RR Lyrae stars (Sesar+, 2010)J/ApJS/186/233 : Variable point sources in Stripe 82. I. (Bhatti+, 2010)J/A+A/525/A37 : Variability indexes of QSOs in Stripe 82 (Meusinger+ 2011)J/other/RAA/11.309 : Nearby early-type galaxies in Stripe 82 (Jiang+, 2011)J/AJ/142/3 : 1.4GHz observations of Stripe 82 (Hodge+, 2011)J/ApJ/731/17 : Variability of low-mass stars in Stripe 82 (Becker+, 2011)J/MNRAS/413/3059 : 4098 galaxy clusters in SDSS Stripe 82 (Geach+, 2011)J/MNRAS/424/2528 : RR Lyrae in SDSS Stripe 82 (Suveges+, 2012)J/ApJ/768/105 : z~5 QSO luminosity function from Stripe 82 (McGreer+ 2013)J/ApJ/769/125 : 1.4GHz radio variability in FIRST + SDSS Stripe 82J/MNRAS/436/3581 : X-ray observations of Stripe 82 (LaMassa+, 2013)J/MNRAS/440/476 : Low-redshift quasars in SDSS Stripe 82 (Falomo+, 2014)J/MNRAS/441/1802 : Low-redshift QSOs in SDSS Stripe 82 (Karhunen+, 2014)J/MNRAS/439/1212 : Deep 20GHz survey of CDFS & SDSS Stripe 82 (Franzen+ 2014)J/ApJS/210/22 : Herschel Stripe 82 survey (HerS) catalog (Viero+, 2014)J/MNRAS/455/370 : Predicted LIR for SDSS galaxies (Ellison+, 2016)J/A+A/578/A79 : Galaxy clusters in SDSS Stripe 82 (Durret+, 2015)J/A+A/594/A32 : 3XMM/SDSS Stripe 82 Galaxy Cluster Survey. (Takey+, 2016)J/ApJ/799/72 : Binary AGNs from the VLA Stripe 82 survey (Fu+, 2015)J/ApJ/817/172 : X-ray Observations of Stripe 82 (LaMassa+, 2016)J/ApJ/818/105 : CNSS pilot survey (Mooley+, 2016)J/ApJ/824/70 : UV-FIR SED results of SDSS QSOs & their hosts (Dong+ 2016)J/MNRAS/457/2703 : Local SDSS galaxies in Herschel Stripe 82 (Rosario+, 2016)J/MNRAS/460/4433 : SDSS Stripe 82 VLA 1-2GHz survey (Heywood+, 2016)J/ApJ/834/160 : ugriz colors of RR Lyrae stars in Stripe 82 (Ngeow+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/456/1359https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/456/1359http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/456/1359https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/456/1359https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/456/1359http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/456/1359GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/456/1359/catalog (Photometric parameters for SDSS Stripe 82 (version September 2018))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/456/1359/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/456/1359/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/456/1359/catalog?GETtext/xml+votable180.050000true324.4023350.757421110.0055555555555555564/1109-1110 1113-1114 1125-1126 1129-1130 1173-1174 1177-1178 1189-1190 1193-1194 1449-1450 1877 5/0 3072 4351 4415 4431 4435 4444 4451 4460 4464 4495 4499 4508 4515 4524 4528 4544 4671 4687 4691 4700 4707 4716 4720 4751 4755 4764 4771 4780 4784 4800 4864 5775 5784 5786-5787 5795 5804 5808 9215 12287 6/4 8 12292 12296 17399 17403 17655 17659 17719 17723 17735 17739 17780 17784 17799 17803 17844 17848 17860 17864 17975 17979 17991 17995 18036 18040 18055 18059 18100 18104 18116 18120 18180 18184 18679 18683 18743 18747 18759 18763 18804 18808 18823 18827 18868 18872 18884 18888 18999 19003 19015 19019 19060 19064 19079 19083 19124 19128 19140 19144 19204 19208 19460 19464 23095 23099 23140 23142-23143 23175 23179 23220 23224 23236 23240 30023 30029 30031 30064-30065 30068 36855 36859 49143 491472.040811542443644e-19 6.090060298487514e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/456/1359?format=asciiOpticaldefaultJ/MNRAS/456/1359/catalogPhotometric parameters for SDSS Stripe 82 (version September 2018)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[0/15368823] Sequential identification number (sdss\_iac\_id)meta.id;meta.mainintRAJ2000Right ascension (J2000) (ALPHA_J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) (DELTA_J2000)degpos.eq.dec;meta.mainindexedumag?=99 SDSS AUTO u magnitude (u\_MAG\_AUTO)magphot.mag;em.opt.UfloatnullableumagP?=99 SDSS PETRO u magnitude (u\_MAG\_PETRO)magphot.mag;em.opt.UfloatnullableumagAp1?=99 SDSS APER 1 magnitude (u\_MAG\_APER_1)magphot.mag;em.opt.UfloatnullableumagAp2?=99 SDSS APER 2 magnitude (u\_MAG\_APER_2)magphot.mag;em.opt.UfloatnullableumagAp3?=99 SDSS APER 3 magnitude (u\_MAG\_APER_3)magphot.mag;em.opt.UfloatnullableumagAp4?=99 SDSS APER 4 magnitude (u\_MAG\_APER_4)magphot.mag;em.opt.Ufloatnullablee_umag?=99 rms uncertainty on umag (u\_MAGERR\_AUTO)magstat.error;phot.mag;em.opt.Ufloatnullablee_umagP?=99 rms uncertainty on umaP (u\_MAGERR\_PETRO)magstat.error;pos.cartesian.xfloatnullablee_umagAp1?=99 rms uncertainty on umagAp1 (u\_MAGERR\_APER_1)magstat.error;pos.cartesian.xfloatnullablee_umagAp2?=99 rms uncertainty on umagAp2 (u\_MAGERR\_APER_2)magstat.error;pos.cartesian.xfloatnullablee_umagAp3?=99 rms uncertainty on umagAp3 (u\_MAGERR\_APER_3)magstat.error;pos.cartesian.xfloatnullablee_umagAp4?=99 rms uncertainty on umagAp4 (u\_MAGERR\_APER_4)magstat.error;pos.cartesian.xfloatnullableuFluxRad?=0 SDSS u band flux (u\_Flux\_RADIUS)pixphot.mag;em.opt.Udoublenullablegmag?=99 SDSS AUTO g magnitude (g\_MAG\_AUTO)magphot.mag;em.opt.BfloatnullablegmagP?=99 SDSS PETRO g magnitude (g\_MAG\_PETRO)magphot.mag;em.opt.BfloatnullablegmagAp1?=99 SDSS APER 1 g magnitude (g\_MAG\_APER_1)magphot.mag;em.opt.BfloatnullablegmagAp2?=99 SDSS APER 2 g magnitude (g\_MAG\_APER_2)magphot.mag;em.opt.BfloatnullablegmagAp3?=99 SDSS APER 3 g magnitude (g\_MAG\_APER_3)magphot.mag;em.opt.BfloatnullablegmagAp4?=99 SDSS APER 4 g magnitude (g\_MAG\_APER_4)magphot.mag;em.opt.Bfloatnullablee_gmag?=99 rms uncertainty on gmag (g\_MAGERR\_AUTO)magstat.error;phot.mag;em.opt.Bfloatnullablee_gmagP?=99 rms uncertainty on gmagP (g\_MAGERR\_PETRO)magstat.error;phot.magfloatnullablee_gmagAp1?=99 rms uncertainty on gmagAp1 (g\_MAGERR\_APER_1)magstat.errorfloatnullablee_gmagAp2?=99 rms uncertainty on gmagAp2 (g\_MAGERR\_APER_2)magstat.errorfloatnullableRadKronKron radius (KRON_RADIUS)phys.size.radiusfloate_gmagAp3?=99 rms uncertainty on gmagAp3 (g\_MAGERR\_APER_3)magstat.errorfloatnullablee_gmagAp4?=99 rms uncertainty on gmagAp4 (g\_MAGERR\_APER_4)magstat.errorfloatnullablegFluxRad?=0 SDSS g band flux (g\_Flux\_RADIUS)pixphot.mag;em.opt.Bdoublenullablermag?=99 SDSS AUTO r magnitude (r\_MAG\_AUTO)magphot.mag;em.opt.RfloatnullablermagP?=99 SDSS PETRO r magnitude (r\_MAG\_PETRO)magphot.mag;em.opt.RfloatnullablermagAp1?=99 SDSS APER 1 r magnitude (r\_MAG\_APER_1)magphot.mag;em.opt.RfloatnullablermagAp2?=99 SDSS APER 1 r magnitude (r\_MAG\_APER_2)magphot.mag;em.opt.RfloatnullablermagAp3?=99 SDSS APER 1 r magnitude (r\_MAG\_APER_3)magphot.mag;em.opt.RfloatnullablermagAp4?=99 SDSS APER 1 r magnitude (r\_MAG\_APER_4)magphot.mag;em.opt.Rfloatnullablee_rmag?=99 rms uncertainty on rmag (r\_MAGERR\_AUTO)magstat.error;phot.mag;em.opt.Rfloatnullablee_rmagP?=99 rms uncertainty on rmagP (r\_MAGERR\_PETRO)magstat.error;phot.magfloatnullablee_rmagAp1?=99 rms uncertainty on rmagAp1 (r\_MAGERR\_APER_1)magstat.errorfloatnullablee_rmagAp2?=99 rms uncertainty on rmagAp2 (r\_MAGERR\_APER_2)magstat.errorfloatnullablee_rmagAp3?=99 rms uncertainty on rmagAp3 (r\_MAGERR\_APER_3)magstat.errorfloatnullablee_rmagAp4?=99 rms uncertainty on rmagAp4 (r\_MAGERR\_APER_4)magstat.errorfloatnullablerFluxRad?=0 SDSS r band flux (r\_Flux\_RADIUS)pixphot.mag;em.opt.Rdoublenullableimag?=99 SDSS AUTO i magnitude (i\_MAG\_AUTO)magphot.mag;em.opt.IfloatnullableimagP?=99 SDSS PETRO i magnitude (i\_MAG\_PETRO)magphot.mag;em.opt.IfloatnullableimagAp1?=99 SDSS APER 1 i magnitude (i\_MAG\_APER_1)magphot.mag;em.opt.IfloatnullableimagAp2?=99 SDSS APER 2 i magnitude (i\_MAG\_APER_2)magphot.mag;em.opt.IfloatnullableimagAp3?=99 SDSS APER 3 i magnitude (i\_MAG\_APER_3)magphot.mag;em.opt.IfloatnullableimagAp4?=99 SDSS APER 4 i magnitude (i\_MAG\_APER_4)magphot.mag;em.opt.Ifloatnullablee_imag?=99 rms uncertainty on imagR (i\_MAGERR\_AUTO)magstat.error;phot.mag;em.opt.Ifloatnullablee_imagP?=99 rms uncertainty on imagP (i\_MAGERR\_PETRO)magstat.error;phot.magfloatnullablee_imagAp1?=99 rms uncertainty on imagAp1 (i\_MAGERR\_APER_1)magstat.errorfloatnullablee_imagAp2?=99 rms uncertainty on imagAp2 (i\_MAGERR\_APER_2)magstat.errorfloatnullablee_imagAp3?=99 rms uncertainty on imagAp3 (i\_MAGERR\_APER_3)magstat.errorfloatnullablee_imagAp4?=99 rms uncertainty on imagAp4 (i\_MAGERR\_APER_4)magstat.errorfloatnullableiFluxRad?=0 SDSS i band flux (i\_Flux\_RADIUS)pixphot.mag;em.opt.Idoublenullablezmag?=99 SDSS AUTO z magnitude (z\_MAG\_AUTO)magphot.mag;em.opt.IfloatnullablezmagP?=99 SDSS PETRO z magnitude (z\_MAG\_PETRO)magphot.mag;em.opt.IfloatnullablezmagAp1?=99 SDSS APER 1 z magnitude (z\_MAG\_APER_1)magphot.mag;em.opt.IfloatnullablezmagAp2?=99 SDSS APER 2 z magnitude (z\_MAG\_APER_2)magphot.mag;em.opt.IfloatnullablezmagAp3?=99 SDSS APER 3 z magnitude (z\_MAG\_APER_3)magphot.mag;em.opt.IfloatnullablezmagAp4?=99 SDSS APER 4 z magnitude (z\_MAG\_APER_4)magphot.mag;em.opt.Ifloatnullablee_zmag?=99 rms uncertainty on zmag (z\_MAGERR\_AUTO)magstat.error;phot.mag;em.opt.Ifloatnullablee_zmagP?=99 rms uncertainty on zmagP (z\_MAGERR\_PETRO)magstat.error;phot.magfloatnullablee_zmagAp1?=99 rms uncertainty on zmagAp1 (z\_MAGERR\_APER_1)magstat.errorfloatnullablee_zmagAp2?=99 rms uncertainty on zmagAp2 (z\_MAGERR\_APER_2)magstat.errorfloatnullablee_zmagAp3?=99 rms uncertainty on zmagAp3 (z\_MAGERR\_APER_3)magstat.errorfloatnullablee_zmagAp4?=99 rms uncertainty on zmagAp4 (z\_MAGERR\_APER_4)magstat.errorfloatnullablezFluxRad?=0 SDSS z band flux (z\_FLUX\_RADIUS)pixphot.mag;em.opt.IdoublenullableRadPetroPetrisoan radius (PETRO_RADIUS)phys.angSize;srcfloatAimgImage major axis (A_IMAGE)pixphys.angSize;obs.imagefloatBimgImage minor axis (B_IMAGE)pixphys.angSize;obs.imagefloatPAimgImage position angle (THETA_IMAGE)degpos.posAng;obs.imagefloatElongElongation (ELONGATION)phys.size.axisRatioEllipEllipticity (ELLIPTICITY)src.ellipticityfloatFlagsFlags (FLAGS)meta.code.errorintS/G[0/1] Stellarity (stellarity)src.class.starGalaxyint