J/A+A/563/A2ivo://CDS.VizieR/J/A+A/563/A2doi:10.26093/cds/vizier.35630002CDSHenze M.Pietsch W.Haberl F.Della Valle M.Sala G.,Hatzidimitriou D.Hofmann F.Hernanz M.Hartmann D.H.Greiner J.2026-01-13T19:41:07Z2014-02-25T08:04:52ZCDS support team

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

cds-question@unistra.frgalaxiesnovaex-ray-sourcesClassical novae (CNe) represent the major class of supersoft X-ray sources (SSSs) in the central region of our neighbouring galaxy M 31. We performed a dedicated monitoring of the M 31 central region, which aimed to detect SSS counterparts of CNe, with XMM-Newton and Chandra between Nov and Mar of the years 2009/10, 2010/11, and 2011/12. We systematically searched our data for X-ray counterparts of CNe and determined their X-ray light curves and also their spectral properties in the case of XMM-Newton data. Additionally, we determined luminosity upper limits for all previously known X-ray emitting novae, which are not detected anymore, and for all CNe in our field of view with recent optical outbursts.2014A&A...563A...2Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/563/A2CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/533/A52 : X-ray monitoring of M31 novae (Henze+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/563/A2https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/563/A2http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/563/A2https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/563/A2https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/563/A2http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/563/A2GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/563/A2/table9 (Catalogue of X-ray detected optical novae in M31)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/563/A2/table9?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/563/A2/table9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/563/A2/table9?GETtext/xml+votable180.050000true10.645833341.22277780.005555555555555556Cone search capability for table J/A+A/563/A2/table2 (XMM-Newton and Chandra measurements of M31 optical nova candidates known from Paper II (Cat. J/A+A/533/A52) and still detected here)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/563/A2/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/563/A2/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/563/A2/table2?GETtext/xml+votable180.050000true10.7341.34611110.005555555555555556Cone search capability for table J/A+A/563/A2/table3 (M31 optical novae with XMM-Newton and Chandra counterparts discovered in this work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/563/A2/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/563/A2/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/563/A2/table3?GETtext/xml+votable180.050000true10.7027541.27397220.005555555555555556Cone search capability for table J/A+A/563/A2/non_det (Upper limits for non-detected classical novae in M31 (tables 4--7))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/563/A2/non_det?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/563/A2/non_det?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/563/A2/non_det?GETtext/xml+votable180.050000true10.675541741.25288890.005555555555555556Cone search capability for table J/A+A/563/A2/table8 (Non-nova SuperSoft Sources (SSS) in the monitoring)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/563/A2/table8?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/563/A2/table8?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/563/A2/table8?GETtext/xml+votable180.050000true10.8287541.33830560.0055555555555555566/2622-2623 2666 2705 2708-2709https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/563/A2?format=asciiX-raydefaultJ/A+A/563/A2/table9Catalogue of X-ray detected optical novae in M31recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintM31NName (YYYY-DDa)meta.id;meta.maincharprimaryNNumber of observations (or upper limits) for this novameta.ref.urlintnullablet(outb)Modified Julian day of optical nova outburstdtime.epochdoublemagMaximum observed magnitude in filter n_magmagphot.magfloatn_mag[B Ha R W i'] Filter (W = white = unfiltered)meta.notechart2R? Time the nova R magnitude needs to drop 2mag below peak magnitude (1)dtime.epochfloatnullableO/Y[OYG] Positional association with the Old (bulge), Young (disk) or G (Galaxy center) stellar populations of M31 (see Sect. 5.3)src.classcharTypeSpectral type of optical nova (2)src.spTypecharVexp? Outflow velocity of the ejected envelope as measured from optical spectra;km/sphys.velocintnullableTon? X-ray turn-on time (4)dtime.epochintnullablee_Ton? rms uncertainty on Tondstat.errorintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharl_ToffLimit flag on Toffmeta.code.errorcharToff? X-ray turn-off time (4)dtime.epochintnullablee_Toff? rms uncertainty on Toffdstat.errorintnullableSSS?Supersoft X-ray sources classification (3)src.classcharkT? Maximum black body temperature as derived from spectral fits, kT^h^_BB_eVphys.temperaturefloatnullableE_kT? Error on kT (upper limit)eVstat.error;stat.maxfloatnullablee_kT? Error on kT (lower limit)eVstat.error;phys.energyfloatnullableMej? Ejected H massusolMassphys.massfloatnullableE_Mej? Error on Mej (upper limit)usolMassstat.error;stat.maxfloatnullablee_Mej? Error on Mej (lower limit)usolMassstat.errorfloatnullablel_MburnLimit flag on Mburnmeta.code.errorcharMburn? Burned massusolMassphys.massfloatnullablee_Mburn? rms uncertainty on MburnusolMassstat.errorfloatnullableRefOptical (oNN) and X-ray (xNN) references, in refs.dat filemeta.ref;spect.dopplerVeloc.optchar_RAPosition from Simbad, or this paper (right ascension part)degpos.eq.ra;meta.main_DEPosition from Simbad, or this paper (declination part)degpos.eq.dec;meta.mainJ/A+A/563/A2/table1Observations of the M31 monitoringTexpM1? Exposure time for MOS1 instrument (1)kstime.duration;obs.exposurefloatnullableTexpM2? Exposure time for MOS2 instrument (1)kstime.duration;obs.exposurefloatnullableTexpH1? Exposure time for HRC-1 instrument (1)kstime.duration;obs.exposurefloatnullableStartStart time of observations (YYYY-MM-DD.dd) (2)time.epochcharJDJulian date of start time of observations (2)dtime.epochfloatoRAOffset on right ascension (3)arcsecpos.eq.ra;arith.difffloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateDate (month) of observationtime.epochnullableTel/InstTelescope/Instrumentmeta.notecharObsIDObservation IDmeta.id;obslongTexpPN? Exposure time for pn instrument (1)kstime.duration;obs.exposurefloatnullableoDEOffset on declination (3)arcsecpos.eq.dec;arith.difffloatJ/A+A/563/A2/table2XMM-Newton and Chandra measurements of M31 optical nova candidates known from Paper II (Cat. J/A+A/533/A52) and still detected hereM31NNova Name, YYYY-DDameta.id;meta.maincharSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainMJDModified Julian date of optical outburst (MJD=JD-2400000.5)dtime.epochdoubleD? Distance between optical and X-ray sourcearcsecpos.angDistancefloatnullableObsIDObservation ID (1)meta.id;obscharDt? Time after observed start of optical outburstdtime.epochfloatnullablel_L50Limit flag on L50 (3{sigma} upper limit)meta.code.errorcharL50? Unabsorbed equivalent luminosity in the 0.2-10.0keV band assuming a 50eV black body spectrum with Galactic foreground absorption1e+29Wphys.luminosityfloatnullablee_L50? rms uncertainty on L50 (1{sigma} error)1e+29Wstat.errorfloatnullableComComments (2)meta.notecharJ/A+A/563/A2/table3M31 optical novae with XMM-Newton and Chandra counterparts discovered in this workM31NNova Name, YYYY-DDameta.id;meta.maincharSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainMJDModified Julian date of optical outburst (MJD=JD-2400000.5)dtime.epochdoubleD? Distance between optical and X-ray sourcearcsecpos.angDistancefloatnullableObsIDObservation ID (1)meta.id;obscharDt? Time after observed start of optical outburstdtime.epochfloatnullablel_L50Limit flag on L50 (3{sigma} upper limit)meta.code.errorcharL50? Unabsorbed equivalent luminosity in the 0.2-10.0keV band assuming a 50eV black body spectrum with Galactic foreground absorption1e+29Wphys.luminosityfloatnullablee_L50? rms uncertainty on L50 (1{sigma} error)1e+29Wstat.errorfloatnullableComComments (2)meta.notecharJ/A+A/563/A2/non_detUpper limits for non-detected classical novae in M31 (tables 4--7)Tmeta.id;meta.datasetcharMJDModified Julian date of optical outburst (MJD=JD-2400000.5)dtime.epochdoubleD? Distance between optical and X-ray sourcearcsecpos.angDistancefloatnullableObsIDObservation ID (1)meta.id;obscharDt? Time after observed start of optical outburstdtime.epochfloatnullablel_L50Limit flag on L50 (3{sigma} upper limit)meta.code.errorcharL50? Unabsorbed equivalent luminosity in the 0.2-10.0keV band assuming a 50eV black body spectrum with Galactic foreground absorption1e+29Wphys.luminosityfloatnullablee_L50? rms uncertainty on L50 (1{sigma} error)1e+29Wstat.errorfloatnullableComComments (2)meta.notecharSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintM31NNova Name, YYYY-DDameta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainJ/A+A/563/A2/table8Non-nova SuperSoft Sources (SSS) in the monitoringrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainIDSource number in the catalogue of Stiele et al. 2011 (J/A+A/534/A55, [SPH2011] NNNN) except 875meta.id;meta.mainintn_ID[*] *: source 875 was only present in the work of Stiele et al. 2008 (J/A+A/480/599, <[PFH2005] 875> in Simbadmeta.notecharComCommentsmeta.notecharJ/A+A/563/A2/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.notecharBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notechar