J/ApJ/681/1464ivo://CDS.VizieR/J/ApJ/681/1464doi:10.26093/cds/vizier.16811464CDSOfek E.O.Muno M.Quimby R.Kulkarni S.R.Stiele H.Pietsch W.,Nakar E.Gal-Yam A.Rau A.Cameron P.B.Cenko S.B.Kasliwal M.M.,Fox D.B.Chandra P.Kong A.K.H.Barnard R.2010-12-06T11:33:51Z2010-11-23T08:07:24ZCDS support team

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

cds-question@unistra.frx-ray-sourcesgamma-ray-astronomygalaxiesGRB 070201 was a bright, short-duration, hard-spectrum gamma-ray burst detected by the Interplanetary Network. Its error quadrilateral, which has an area of 0.124deg^2^, intersects some prominent spiral arms of the nearby M31 (Andromeda) galaxy. Given the properties of this GRB, along with the fact that LIGO data argue against a compact binary merger origin in M31, it is an excellent candidate to have been an extragalactic soft gamma-ray repeater (SGR) giant flare, with an energy of 1.4x1045ergs. However, we cannot rule out the possibility that it was a short-duration GRB in the background. Analysis of ROTSE-IIIb visible-light observations of M31, taken 10.6hr after the burst and covering 42% of the GRB error region, does not reveal any optical transient down to a limiting magnitude of 17.1. We inspected archival and proprietary XMM-Newton X-ray observations of the intersection of the GRB error region and M31, obtained about 4 weeks prior to the outburst, in order to look for periodic variable X-ray sources. No SGR or anomalous X-ray pulsar (AXP) candidates (periods in the range 1-20s) were detected. We discuss the possibility of detecting extragalactic SGRs/AXPs by identifying their periodic X-ray light curves. Our simulations suggest that the probability of detecting the periodic X-ray signal of one of the known Galactic SGRs/AXPs, if placed in M31, is about 10% using a 50ks XMM-Newton exposure, increasing to 50% for a 2Ms observation.2008ApJ...681.1464Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/681/1464CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/xmm : XMM-Newton Observation Log (XMM-Newton Science Operation Center, 2009)J/ApJS/173/643 : GALEX UV photometry of M31 Globular Clusters (Rey+, 2007)J/A+A/473/347 : BeppoSAX complete catalogue of GRBs (Vetere+, 2007)J/A+A/434/483 : An XMM-Newton survey of M 31 (Pietsch+, 2005)J/A+A/373/63 : M31 second ROSAT PSPC survey (Supper+, 2001)J/A+AS/114/215 : New SNR candidates in M31 (Magnier+, 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/681/1464https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/681/1464http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/681/1464https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/681/1464https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/681/1464http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/681/1464GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/681/1464/table2 (X-ray sources searched for periodicty)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/681/1464/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/681/1464/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/681/1464/table2?GETtext/xml+votable180.050000true11.5144441.77310.0055555555555555566/2666 2752https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/681/1464?format=asciiGamma-rayX-raydefaultJ/ApJ/681/1464/table2X-ray sources searched for periodictyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[OMQ2008]Coordinate designation name (HHMMSS.s+DDMMSS)meta.id;meta.maincharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainAperAperture radius (1)arcsecphys.angSizefloatCtsSource counts within aperturectphot.count;em.X-raylongObsIDXMM observation IDmeta.id;obschar