J/other/RAA/15.1ivo://CDS.VizieR/J/other/RAA/15.1438doi:10.26093/cds/vizier/dx/bfkbediCDSHuo Z.-Y.Liu X.-W.Xiang M.-S.Shi J.-R.Yuan H.-B.Huang Y.,Zhang Y.Hou Y.-H.Wang Y.-F.Yang M.2026-02-10T20:07:11Z2016-03-08T17:03:05ZCDS support team

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

cds-question@unistra.frsurveysgalaxiesquasarsredshiftedIn this work, we report new quasars discovered in fields in the vicinity of the Andromeda (M31) and Triangulum (M33) galaxies with the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST, also called the Guo Shou Jing Telescope) during the 2013 observational season, the second year of the regular survey. In total, 1330 new quasars are discovered in an area of ~133{deg}^2^ around M31 and M33. With i magnitudes ranging from 14.79 to 20.0 and redshifts from 0.08 to 4.85, the 1330 new quasars represent a significant increase in the number of identified quasars in fields in the vicinity of M31 and M33. Up to now, there have been a total of 1870 quasars discovered by LAMOST in this area. The much enlarged sample of known quasars in this area can potentially be utilized to construct a precise astrometric reference frame for the measurement of minute proper motions of M31, M33 and their associated substructures, which are vital for understanding the formation and evolution of M31, M33 and the Local Group of galaxies. Moreover, in the sample, there are a total of 45, 98 and 225 quasars with i magnitudes brighter than 17.0, 17.5 and 18.0 respectively. In the aforementioned brightness bins, 15, 35 and 84 quasars are reported here for the first time, and 6, 21 and 81 are reported in our previous work. In addition, 0, 1 and 6 are from the Sloan Digital Sky Survey and 24, 41 and 54 are from the NED database. These bright quasars provide an invaluable sample to study the kinematics and chemistry of the interstellar/intergalactic medium of the Local Group.2015RAA....15.1438Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RAA/15.1438CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/146 : LAMOST DR1 catalogs (Luo+, 2015)J/AJ/145/159 : LAMOST. II. ugriz photometry of 526 new quasars (Huo+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RAA/15.1438https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/RAA/15.1438http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/RAA/15.1438https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/RAA/15.1438https://vizier.iucaa.in/viz-bin/votable?-source=J/other/RAA/15.1438http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/RAA/15.1438GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/RAA/15.1438/table1 (Catalog of new quasars in fields in the vicinity of M31 and M33 discovered by LAMOST in the 2013 observational season)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/15.1438/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/15.1438/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/15.1438/table1?GETtext/xml+votable180.050000true8.1431988933.977226940.0055555555555555564/140 142 160 166 5/525 527 536 538 549 551 564 572 574 644 647-648 657-659 662-663 668-669 706 6/2078-2079 2097 2099 2105 2107 2122-2123 2148 2150 2156 2158-2159 2170-2171 2222 2229 2264 2266 2294 2580 2582 2584-2586 2596-2598 2608-2610 2613 2620 2625-2627 2640 2642-2643 2680-2682 2684 2753 2848 20317 20319 203412.040811542443644e-19 6.090060298487514e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/RAA/15.1438?format=asciiOpticaldefaultJ/other/RAA/15.1438/table1Catalog of new quasars in fields in the vicinity of M31 and M33 discovered by LAMOST in the 2013 observational seasonSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObjectTarget name (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharRA_ICRSRight ascension of the object (ICRS)degpos.eq.ra;meta.mainDE_ICRSDeclination of the object (ICRS)degpos.eq.dec;meta.mainzLAMOST redshiftsrc.redshiftfloatumag? Best SDSS u band PSF magnitudemagphot.mag;em.opt.UchargmagBest SDSS g band PSF magnitudemagphot.mag;em.opt.BfloatrmagBest SDSS r band PSF magnitudemagphot.mag;em.opt.RfloatimagBest SDSS i band PSF magnitudemagphot.mag;em.opt.Ifloatzmag? Best SDSS z band PSF magnitudemagphot.mag;em.opt.IcharAiGalactic extinction in i bandmagphys.absorption.galfloatSelSelection criteriameta.codechar