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GCN Circulars

GCN Circulars are rapid astronomical bulletins submitted by and distributed to community members worldwide. They are used to share discoveries, observations, quantitative near-term predictions, requests for follow-up observations, or future observing plans related to high-energy, multi-messenger, and variable or transient astrophysical events. See the documentation for help with subscribing to or submitting Circulars.

Search for Circulars by submitter, subject, or body text (e.g. 'Fermi GRB').
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').

11 results found.

  1. GRB 070809: Putative host galaxy and redshift
  2. GRB 070809: The Swift evidence for the SHB nature of this burst
  3. GRB 070809: Confirmation of optical transient
  4. GRB 070809: Swift/UVOT Corrected Photometry
  5. GRB 070809: Swift/UVOT Upper Limits
  6. GRB 070809: Keck Imaging
  7. GRB 070809: Swift-XRT refined analysis
  8. GRB 070809, Swift-BAT refined analysis
  9. GRB 070809: Optical Pre-imaging from Palomar
  10. GRB 070809: ROTSE-III Optical Limits
  11. GRB 070809: Swift detection of a short burst


Download all Circulars as a .tar.gz archive:
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