J/AJ/112/62ivo://CDS.VizieR/J/AJ/112/62doi:10.26093/cds/vizier.51120062CDSTanner A.M.Bechtold J.Walker C.E.Black J.H.Cutri R.M.2023-04-06T16:50:23Z1998-08-31T12:20:54ZCDS support team

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

cds-question@unistra.frquasarsredshiftedinfrared-astronomyspectroscopyA survey of quasar absorbers was conducted using the Infrared Astronomical Satellite (IRAS) database. Quasars with known intervening absorption-line systems and broad absorption line (BAL) QSOs were selected primarily from Junkkarinen et al. (1991ApJS...77..203J). Of the 570 quasars with IRAS data, 52 showed 3{sigma} or better detections in at least one band in SCANPI analysis. The origin of the IRAS flux could be from the absorption-line systems, other galaxies, or the quasar itself. The spectral energy distributions for quasars detected in the absorption-line sample and BAL QSOs were found to be redder than those of two control samples which suggests that some of the IRAS flux may arise in dust associated with the intervening galaxies. IRAS SUPERSCANPI processing was carried out for 77 quasars with known MgII absorption at Zabs<1 to investigate the ensemble far-infrared properties of these objects. SUPERSCANPI processing evaluates the median flux for many different positions on the sky, resulting in an improvement in the effective sensitivity. A control sample consisting of objects with no MgII absorption known at Zabs<1 but with the same distribution of absolute V-magnitude, Zem and radio-loud fraction for the background quasars was also processed. The MgII sample was detected at 3{sigma} or better in all four IRAS bands with a significantly larger flux than the control sample at 60{mu}m and 100{mu}m. If this far-infrared emission is from the absorber galaxies, then the far-infrared luminosity of the composite MgII absorber was found to be comparable to that of a starbursting galaxy, although such a high star-formation rate is inconsistent with the optical and near-infrared colors of low-redshift MgII systems. Four of the quasars with individual IRAS detections have intervening galaxies identified with the MgII absorption-lines. The spectral energy distributions of these galaxies imply far-infrared luminosities in excess of what Arp 220 would give at their redshifts. While all the external evidence suggests that the detection of far-infrared emission from the absorber sample may not be connected to the presence of the MgII absorber, we discuss future observations which may help explain our results.1996AJ....112...62Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/112/62CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/112/62https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/112/62http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/112/62https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/112/62https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/112/62http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/112/62GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/112/62/table1 (Additional quasar in absorption-line (AL) sample, not in JHB (Cat. J/ApJS/77/203))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/112/62/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/112/62/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/112/62/table1?GETtext/xml+votable180.050000true3.0453631-1.36882190.005555555555555556Cone search capability for table J/AJ/112/62/table2 (Damped Ly{alpha} sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/112/62/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/112/62/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/112/62/table2?GETtext/xml+votable180.050000true11.95875-3.42527780.005555555555555556Cone search capability for table J/AJ/112/62/table3 (IRAS ADDSCAN detections)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/112/62/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/112/62/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/112/62/table3?GETtext/xml+votable180.050000true4.283752381.5855570.005555555555555556Cone search capability for table J/AJ/112/62/table4 (BAL QSO's detected with IRAS ADDSCAN analysis)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/112/62/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/112/62/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/112/62/table4?GETtext/xml+votable180.050000true42.96344310.96091340.005555555555555556Cone search capability for table J/AJ/112/62/table5 (Low redshift MgII absorption line sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/112/62/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/112/62/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/112/62/table5?GETtext/xml+votable180.050000true4.0100267-0.20696640.005555555555555556Cone search capability for table J/AJ/112/62/table6 (Control sample with no MgII absorption for Zabs<1)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/112/62/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/112/62/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/112/62/table6?GETtext/xml+votable180.050000true5.61445811.40346750.0055555555555555566/155 532 579 1521 1546 2172 2217 2257 2324 2397 4027 4212 4269 4273 4303 4322 4333 4448 4693 4770 4820 4862 5163 5255 5271 5290 5306 5439 5806 5870 6252 6264 6618 7182 7291 7349 7424 7488 7508 7743 8117 8282 8300 8360 8510 8526 8528 8638 8707 8714 8939 8952 9252 9299 9456 9633 9705 9955 10039 10084 10163 10298 10388 10422 10432 10659 10765 10801 10807 10925 10940 11099 11104 11502 11723 11725 11782 12024 12047 12352 12580 12740 13320 14520 15300 16432 16644 16653 16752 17404 17488 17639 17693 17730 17757 17761 17815 17857 17859 17898 17917 17969 17979 18022 18030 18042 18081 18084 18099 18101 18116 18366 18661 18669 18756 18769 18775 18777 19190 19216 19398 19542 19682 19783 19803 19807 19895 20111 20202 20450 21012 21121 21126 21714 22452 22501 22578 22917 22965 23016 23045 23121 23238 23284 23304 23397 24349 25120 25467 25472 25810 25986 26100 26115 26245 26294 26323 26453 26479 26482 26525 26614 26863 26966 26990 27127 27238 27423 27448 27514 27650 27704 27739 27751 27756 27830 27963-27964 28167 28315 28479 28532 28539 28610 28666 30010 30021 30029 31211 31686 31857 32527 34512 34517 35484 35595 35842 36090 36495 37385 38853 40479 40533 40730 43957 44028 44387 44776 44859 44908 45178 46651 47206 47570 48474 48614 489651.6558465556080236e-21 2.1346512726771855e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/112/62?format=asciiOpticalInfrareddefaultJ/AJ/112/62/table1Additional quasar in absorption-line (AL) sample, not in JHB (Cat. J/ApJS/77/203)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintQSOQuasar namemeta.id;meta.maincharr_QSOReference (1)meta.ref;pos.framecharzemEmission redshiftsrc.redshiftfloatzabs? Absorption redshiftsrc.redshiftfloatnullableVmag? V magnitude from Hewitt & Burbidge (1993ApJS...87..451H)magphot.mag;em.opt.VfloatnullableRL? Radio loudness (G1)phot.flux;arith.ratiofloatnullableSimbadSimbad column added by the CDSmeta.refchar_RAPosition from Simbad, when the QSO name is known. (right ascension part)degpos.eq.ra;meta.mainnullable_DEPosition from Simbad, when the QSO name is known. (declination part)degpos.eq.dec;meta.mainnullableJ/AJ/112/62/table2Damped Ly{alpha} samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintQSOQuasar namemeta.id;meta.maincharr_QSOReference (1)meta.ref;pos.framecharzemEmission redshiftsrc.redshiftfloatzabs? Absorption redshiftsrc.redshiftfloatnullableVmag? V magnitude from Hewitt & Burbidge (1993ApJS...87..451H)magphot.mag;em.opt.VfloatnullableRL? Radio loudness (G1)phot.flux;arith.ratiofloatnullableSimbadSimbad column added by the CDSmeta.refchar_RAPosition from Simbad, when the QSO name is known. (right ascension part)degpos.eq.ra;meta.mainnullable_DEPosition from Simbad, when the QSO name is known. (declination part)degpos.eq.dec;meta.mainnullableJ/AJ/112/62/table3IRAS ADDSCAN detectionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintQSOQuasar namemeta.id;meta.maincharNoteIndividual note (1)meta.notecharzem? Emission redshiftsrc.redshiftfloatnullableVmag? V magnitudemagphot.mag;em.opt.Vfloatnullablezabs? Absorption redshiftsrc.redshiftfloatnullableRA1950Right ascension (1950.0)pos.eq.ra;meta.mainDE1950Declination (1950.0)pos.eq.dec;meta.mainl_S12umLimit flag on 12ummeta.code.errorcharS12umIRAS flux at 12um (2)Jyphot.flux.density;em.IR.8-15umfloate_S12um? rms uncertainty on S12umJystat.errorfloatnullablel_S25umLimit flag on 25ummeta.code.errorcharS25umIRAS flux at 25um (2)Jyphot.flux.density;em.IR.15-30umfloate_S25um? rms uncertainty on S25umJystat.errorfloatnullablel_S60umLimit flag on 60um (2)meta.code.errorcharS60umIRAS flux at 60umJyphot.flux.density;em.IR.30-60umfloate_S60um? rms uncertainty on S60umJystat.errorfloatnullablel_S100umLimit flag on 100um (2)meta.code.errorcharS100umIRAS flux at 100umJyphot.flux.density;em.IR.60-100umfloate_S100um? rms uncertainty on S100umJystat.errorfloatnullableRL? Radio loudness, see also n_RL (G1)phot.flux;arith.ratiofloatnullablen_RL[OBj] Note about RL, and classification (3)meta.notecharzabs2? Second absorption redshiftsrc.redshiftfloatnullablezabs3? Second absorption redshiftsrc.redshiftfloatnullablezabs4? Second absorption redshiftsrc.redshiftfloatnullablezabs5? Second absorption redshiftsrc.redshiftfloatnullablezabs6? Second absorption redshiftsrc.redshiftfloatnullablezabs7? Second absorption redshiftsrc.redshiftfloatnullablezabs8? Second absorption redshiftsrc.redshiftfloatnullablezabs9? Second absorption redshiftsrc.redshiftfloatnullablezabs10? Second absorption redshiftsrc.redshiftfloatnullableSimbadSimbad column added by the CDSmeta.refchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedJ/AJ/112/62/table4BAL QSO's detected with IRAS ADDSCAN analysisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintQSOQuasar namemeta.id;meta.maincharNoteIndividual note (1)meta.notecharzem? Emission redshiftsrc.redshiftfloatnullableVmag? V magnitudemagphot.mag;em.opt.Vfloatnullablezabs? Absorption redshiftsrc.redshiftfloatnullableRA1950Right ascension (1950.0)pos.eq.ra;meta.mainDE1950Declination (1950.0)pos.eq.dec;meta.mainl_S12umLimit flag on 12ummeta.code.errorcharS12umIRAS flux at 12um (2)Jyphot.flux.density;em.IR.8-15umfloate_S12um? rms uncertainty on S12umJystat.errorfloatnullablel_S25umLimit flag on 25ummeta.code.errorcharS25umIRAS flux at 25um (2)Jyphot.flux.density;em.IR.15-30umfloate_S25um? rms uncertainty on S25umJystat.errorfloatnullablel_S60umLimit flag on 60um (2)meta.code.errorcharS60umIRAS flux at 60umJyphot.flux.density;em.IR.30-60umfloate_S60um? rms uncertainty on S60umJystat.errorfloatnullablel_S100umLimit flag on 100um (2)meta.code.errorcharS100umIRAS flux at 100umJyphot.flux.density;em.IR.60-100umfloate_S100um? rms uncertainty on S100umJystat.errorfloatnullableRL? Radio loudness, see also n_RL (G1)phot.flux;arith.ratiofloatnullablen_RL[OBj] Note about RL, and classification (3)meta.notecharzabs2? Second absorption redshiftsrc.redshiftfloatnullablezabs3? Second absorption redshiftsrc.redshiftfloatnullablezabs4? Second absorption redshiftsrc.redshiftfloatnullablezabs5? Second absorption redshiftsrc.redshiftfloatnullablezabs6? Second absorption redshiftsrc.redshiftfloatnullablezabs7? Second absorption redshiftsrc.redshiftfloatnullablezabs8? Second absorption redshiftsrc.redshiftfloatnullablezabs9? Second absorption redshiftsrc.redshiftfloatnullablezabs10? Second absorption redshiftsrc.redshiftfloatnullableSimbadSimbad column added by the CDSmeta.refchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedJ/AJ/112/62/table5Low redshift MgII absorption line samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintQSOQuasar namemeta.id;meta.maincharn_QSOIndividual note (1)meta.notecharzem? Emission redshiftsrc.redshiftfloatnullablezabs? Absorption redshiftsrc.redshiftfloatnullableVmagV magnitudemagphot.mag;em.opt.VfloatRL? Radio loudnessphot.flux;arith.ratiofloatnullableRef? References, for table6 only (2)meta.refintnullableSimbadSimbad column added by the CDSmeta.refchar_RAPosition from Simbad, when the QSO name is known. (right ascension part)degpos.eq.ra;meta.mainnullable_DEPosition from Simbad, when the QSO name is known. (declination part)degpos.eq.dec;meta.mainnullableJ/AJ/112/62/table6Control sample with no MgII absorption for Zabs<1zem? Emission redshiftsrc.redshiftfloatnullablen_QSOIndividual note (1)meta.notecharzabs? Absorption redshiftsrc.redshiftfloatnullableVmagV magnitudemagphot.mag;em.opt.VfloatRL? Radio loudnessphot.flux;arith.ratiofloatnullableRef? References, for table6 only (2)meta.refintnullableSimbadSimbad column added by the CDSmeta.refcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintQSOQuasar namemeta.id;meta.mainchar_RAPosition from Simbad, when the QSO name is known. (right ascension part)degpos.eq.ra;meta.mainnullable_DEPosition from Simbad, when the QSO name is known. (declination part)degpos.eq.dec;meta.mainnullable