{
  "bibcode": "2008GCN..7710....1L",
  "body": "A.J. Levan (U. Warwick), N.R. Tanvir (U. Leicester), A.S. Fruchter (STScI) \nand J. Graham (STScI) report:\n\nWe have obtained a second epoch of HST observations of GRB 080319B on 11 \nMay 2008. 2 orbits (3200s) of observations were taken in the F606W and \nF814W filters. The afterglow has clearly faded from our first epoch of \nobservations and a faint host galaxy is now visible at the afterglow \nlocation. We measure magnitudes for the combined (afterglow+host) source \nof;\n\nF606W(AB)=26.3 +/ -0.1\nF814W(AB)=25.9 +/ -0.1\n\nRelative astrometry between the two epochs of HST observations suggests \nthat the afterglow is marginally (0.1 +/- 0.05 arcseconds) offset from the \ncentroid of the host galaxy in the F606W image. This implies that the \nafterglow may not be the dominant source of light at the current epoch, \nand is likely significantly fainter than the magnitudes quoted above.",
  "circularId": 7710,
  "createdOn": 1210617330000,
  "email": "anl@star.le.ac.uk",
  "subject": "GRB 080319B: Further HST observations and underlying host",
  "submitter": "Andrew Levan at U.of Leicester  <anl@star.le.ac.uk>",
  "eventId": "GRB 080319B"
}