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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').

7 results found.

  1. GRB 070810: MASTER optical observation
  2. GRB 070810: Keck redshift and photometry
  3. GRB 070810: Swift-XRT Team Refined Analysis
  4. GRB 070810: enhanced Swift-XRT position
  5. GRB 070810: Swift/UVOT Optical Counterpart
  6. GRB 070810: ROTSE-III Detection of Optical Counterpart
  7. GRB 070810: Swift detection of a burst

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Download all Circulars as a .tar.gz archive:
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A service of the Astrophysics Science Division at NASA Goddard Space Flight Center

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