{
  "bibcode": "2015GCN.18484....1S",
  "body": "K. W. Smith, D. Wright, S. J. Smartt (Queen�s University Belfast),  \nK. Chambers, M. Huber, (IfA, University of Hawaii), E. Magnier, \nH. Flewelling, C. Waters, J. Tonry, A. Schultz, N. Primak, A. Heinze, \nB. Stalder, L. Denneau, A. Sherstyuk (IfA), C. Stubbs, \nM. Coughlin (Harvard), A. Rest (STScI)\n\nFurther to GCN 18445, we report that 2 further transients were discovered within \nthe 45% probability contour of the RA=1hr blob. These transients are listed\nbelow along with their discovery dates. We also recovered LSQ15bjb on\nMJD=57316 (i=19.55) and MJD=57317 (i=19.03), as PS transient PS15cog. \nOur first detection is 29.14 hrs before the GW trigger, hence although we\nconfirm the LSQ result that this is indeed a fast rising and bright transient, \nit exploded before the LIGO/Virgo detection trigger.\n\nName         RA (J2000)    Dec (J2000)   Disc. Date   Disc Mag  filter   Notes\n\nLSQ15bjb   00 11 27.61   -06 25 38.4      20151021     19.55       i       (1)\n\nPS15coe     00 29 00.31   -01 34 53.6     20151023     20.69       i       (2)\n\nPS15cof      00 32 03.01   -05 51 46.9     20151023     21.02       i       (3)\n\n(1) LSQ15bjb = PS15cog.  The PS1 photometry shows it to be visible 29.14 \nhours prior to the G194575 event, hence can probably be ruled out as unrelated.  \nSDSS DR12 reports that the likely host (12.34\" away) is \nSDSS J001127.44-062549.5, with photometric redshift of ~0.06.\n(2) DR12 reports that the likely host (2.2\" away) is SDSS J002900.23-013451.7,\nwith photometric redshift of ~0.15.\n(3) DR12 reports that the likely host (3.17\" away) is SDSS J003203.21-055146.6, \nwith photometric redshift of ~0.11.",
  "circularId": 18484,
  "createdOn": 1445941218000,
  "email": "s.smartt@qub.ac.uk",
  "eventId": "LIGO/Virgo G194575",
  "subject": "LIGO/Virgo G194575: further Pan-STARRS observations of the RA=1hr localisation region",
  "submitter": "S. J. Smartt at Queens U Belfast  <s.smartt@qub.ac.uk>"
}