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GCN Circulars

GCN Circulars are rapid bulletins submitted by and distributed to the community. 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').
Advanced Search

To narrow the search results, use advanced search syntax. This allows for specifying which circular field to search (submitter, subject, and/or body). For additional information, refer to the advanced search documentation.

Advanced Search Examples (click to copy):

subject:"Swift"
body:"GRB"
submitter:"Judith Racusin"

11611 results found.

  1. Soft Gamma Repeater SGR 0501+4516: GBM Detection of multiple bursts
  2. New Soft Gamma Repeater 0501+4516 (GRB 080822): GLAST Burst Monitor detection
  3. GRB080818B: GLAST Burst Monitor detection
  4. GLAST Burst Monitor detection of a GRB: 080816B
  5. GLAST Burst Monitor detection of GRB 080818
  6. GLAST Burst Monitor detection of GRB080817B
  7. GLAST Burst Monitor detection of GRB 080817
  8. GLAST Burst Monitor detection of GRB080816
  9. GLAST Burst Monitor detection of GRB 080812
  10. GLAST Burst Monitor detection of GRB 080810
  11. First GLAST Burst Monitor GRB Circulars

Advanced

Download all Circulars as a .tar.gz archive (updated once a day):
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