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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').

21 results found.

  1. GRB 171010A: afterglow and SN 2017htp optical observations
  2. GRB 171010A: possible SN component
  3. GRB 171010A: VLT spectroscopic identification of the associated SN 2017htp
  4. GRB 171010A: VLA Observations
  5. GRB 171010A: VLA Detection
  6. GRB 171010A: A detection of a radio source by AMI
  7. GRB 171010A : Optical observations from HCT
  8. GRB 171010A: RATIR Optical and NIR Observations
  9. GRB 171010A: Swift/UVOT Detection
  10. Konus-Wind observation of GRB 171010A
  11. GRB 171010A: ePESSTO NTT spectroscopic redshift
  12. GRB 171010A: MITSuME Akeno Optical Observation
  13. GRB 171010A: NOT optical observations
  14. GRB 171010A: Fermi GBM observation
  15. GRB 171010A: LCO 1m telescope observations
  16. GRB171010A: AstroSat CZTI detection
  17. GRB 171010A: Swift-XRT afterglow detection
  18. GRB 171010A: optical observations
  19. GRB 171010A: OT, spectrum, and possible host galaxy
  20. GRB 171010A: Swift ToO observations
  21. GRB 171010A: Fermi-LAT detection


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