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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').

18 results found.

  1. GRB 141004A: Continued Late Time RATIR Optical and NIR Observations
  2. GRB 141004A: Continued RATIR Late Time Optical and NIR Observations
  3. GRB 141004A: RATIR Late Time Optical and NIR Observations
  4. GRB 141004A: La Palma late-time observations and possible brightening
  5. GRB141004A: Host galaxy redshift form GTC
  6. GRB 141004A: Fermi GBM observation
  7. GRB 141004A: GROND observations
  8. GRB 141004A: Swift-XRT refined Analysis
  9. GRB 141004A: Swift-BAT refined analysis
  10. GRB141004A: NOT imaging and spectroscopy
  11. GRB 141004A: Swift/UVOT Detection
  12. GRB 141004A: RATIR Optical Observations
  13. GRB 141004A: Monte Agliale Observatory optical observations
  14. GRB 141004A: Enhanced Swift-XRT position
  15. GRB 141004A: TNG photometric and spectroscopic observations
  16. GRB 141004A: 1.23m CAHA optical observations
  17. GRB 141004A: a long GRB detected by INTEGRAL
  18. GRB 141004A: Swift detection of a burst with an optical counterpart

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