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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. LIGO/Virgo S190706ai: Upper limits from Insight-HXMT/HE observations
  2. LIGO/Virgo S190706ai: Updated sky localization
  3. IPN triangulation of GRB 190706D (short)
  4. IPN triangulation of GRB 190706C (long/very bright)
  5. LIGO/Virgo S190706ai: No counterpart candidates in KAIT observations
  6. LIGO/Virgo S190706ai: No transient candidates from CALET observations
  7. LIGO/Virgo S190706ai: No counterpart candidates in the Swift/BAT Observations
  8. LIGO/Virgo S190706ai: No counterpart candidates in Fermi-LAT observations
  9. LIGO/Virgo S190706ai: Upper limits from Fermi-GBM Observations
  10. LIGO/Virgo S190706ai: No counterpart candidates in INTEGRAL SPI-ACS and IBIS prompt observations
  11. LIGO/Virgo S190706ai: No neutrino counterpart candidates in ANTARES search
  12. LIGO/Virgo S190706ai: Upper limits from AGILE-GRID observations
  13. LIGO/Virgo S190706ai: No counterpart candidates in HAWC observations
  14. LIGO/Virgo S190706ai: Coverage and upper limits from MAXI/GSC observations
  15. LIGO/Virgo S190706ai: No counterpart candidates in AGILE-MCAL observations
  16. LIGO/Virgo S190706ai Global MASTER-Net observations report
  17. LIGO/Virgo S190706ai: Identification of a GW compact binary merger candidate
  18. LIGO/Virgo S190706ai: Upper limits from IceCube neutrino searches

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