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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 090702: Skynet/GORT Observations
  2. XRF 090702 : RTT150 optical observations
  3. XRF 090702: Swift-XRT refined analysis
  4. GRB 090702: UVOT upper limits
  5. XRF 090702: VLT imaging
  6. XRF 090702: Swift-XRT afterglow position
  7. XRF 090702: a long soft GRB localized with INTEGRAL


Download all Circulars as a .tar.gz archive:
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