{
  "bibcode": "2009GCN..9213....1C",
  "body": "A. Cucchiara, D. B. Fox (PSU), and E. Berger (Harvard) report:\n\n\"Further analysis of our Gemini+NIRI H-band imaging (Cucchiara, Fox &\nBerger, GCN 9209) has led to a significant correction in the H-band\nmagnitudes for the afterglow/host (Tanvir et al., GCN 9202) of GRB\n090423 (Kimm et al., GCN 9198).  Our revised magnitudes for this\nobject are:\n\nJ mag: 19.29 +- 0.07\nH mag: 18.57 +- 0.07\n\nThe revision to the H-band magnitude, in addition to the absence of\nany detection in our Y-band images, suggests a break in the spectrum\nbelow or within the J-band and above the Y-band, yielding, e.g., 7<~z<~9\nin a Lyman-alpha interpretation.\n\nFurther analysis is in progress and additional observations are planned.\n\nWe apologize for any inconvenience.\"",
  "circularId": 9213,
  "createdOn": 1240518992000,
  "email": "cucchiara@astro.psu.edu",
  "subject": "GRB 090423:  Correction to NIR photometry",
  "submitter": "Antonino Cucchiara at PSU  <cucchiara@astro.psu.edu>",
  "eventId": "GRB 090423"
}