{
  "bibcode": "2020GCN.27419....1L",
  "body": "The LIGO Scientific Collaboration and the Virgo Collaboration report:\n\nWe have conducted further analysis of the LIGO Hanford Observatory\n(H1), LIGO Livingston Observatory (L1), and Virgo Observatory (V1)\ndata around the time of the compact binary merger (CBC) candidate\nS200316bj (GCN Circular 27388). Parameter estimation has been\nperformed using LALInference [1] and a new sky map,\nLALInference.fits.gz,0, distributed via GCN Notice, is available for\nretrieval from the GraceDB event page:\n\nhttps://gracedb.ligo.org/superevents/S200316bj\n\nThe preferred sky map at this time is LALInference.fits.gz,0. For the\nLALInference.fits.gz,0 sky map, the 90% credible region is 508 deg2.\nMarginalized over the whole sky, the a posteriori luminosity distance\nestimate is 1178 +/- 283 Mpc (a posteriori mean +/- standard\ndeviation).\n\nBased on posterior support from parameter estimation [1], under the\nassumption that the candidate S200316bj is astrophysical in origin,\nthe probability that the lighter compact object has a mass < 3 solar\nmasses (HasNS) is <1%. Using the masses and spins inferred from the\nsignal, the probability of matter outside the final compact object\n(HasRemnant) is <1%.\n\nFor further information about analysis methodology and the contents of\nthis alert, refer to the LIGO/Virgo Public Alerts User Guide\n<https://emfollow.docs.ligo.org/userguide/>.\n\n [1] Veitch et al. PRD 91, 042003 (2015)",
  "circularId": 27419,
  "createdOn": 1584810475000,
  "email": "deep@uwm.edu",
  "subject": "LIGO/Virgo S200316bj: Updated Sky Localization and EM Bright Classification",
  "submitter": "Deep Chatterjee at University of Wisconsin, Milwaukee  <deep@uwm.edu>",
  "eventId": "LIGO/Virgo S200316bj"
}