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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"

23 results found.

  1. GRB261010A: Retraction of Keck/MOSFIRE near-IR source
  2. GRB 261010A: Pan-STARRS z-band imaging and upper limit
  3. GRB 261010A: VLA radio observations
  4. GRB261010A: Keck/MOSFIRE detection of a near-IR source
  5. GRB 261010A: ASKAP non-detection of a radio afterglow
  6. GRB 261010A: LBT tentative near-infrared detection
  7. GRB 261010A: Glowbug gamma-ray detection
  8. GRB 261010A: initial pulse rest-frame energetics from Konus-Wind detection
  9. GRB 261010A: a short minimum variability timescale and a distinct pulse evolution compatible with a merger origin
  10. GRID detection of GRB 261010A
  11. GRB 261010A: J-band upper limit by the SYSU 80cm infrared telescope
  12. GRB 261010A: Swift-XRT refined Analysis
  13. GRB 261010A: a Type I-L (merger-driven) GRB candidate
  14. GRB 261010A: 10.4m GTC spectroscopy of the galaxy 2" from the afterglow
  15. Konus-Wind detection of GRB 261010A
  16. GRB 261010A: Swift-BAT refined analysis
  17. GRB 261010A: NOT confirmation of the optical afterglow
  18. GRB 261010A: Fermi GBM Observation
  19. GRB 261010A: Enhanced Swift-XRT position
  20. GRB 261010A: possible optical afterglow detected with the 1.5m OSN
  21. GRB 261010A: NOT possible optical counterpart
  22. GRB 261010A: Swift detection of a burst
  23. GRB 261010A: Fermi GBM Final Real-time Localization

Advanced

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