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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').

127 results found.

  1. LIGO/Virgo S190814bv: des-gw190814a is consistent with an asteroid
  2. LIGO/Virgo S190814bv: no counterpart candidates in Nickel/Direct imaging and non-detections of 2019nmd and 2019nme
  3. LIGO/Virgo S190814bv: ATLAS forced photometry non-detections of DESGW candidates
  4. LIGO/Virgo S190814bv: no counterpart candidates in Keck I MOSFIRE imaging
  5. LIGO/Virgo S190814bv: No candidates from the Zwicky Transient Facility
  6. LIGO/Virgo S190814bv: KMTNet observation
  7. LIGO/Virgo S190814bv: No counterpart candidates in the Swift/BAT Observations
  8. LIGO/Virgo S190814bv: MeerLICHT coverage second preliminary skymap
  9. LIGO/Virgo S190814bv Global MASTER-Net optical observations
  10. LIGO/Virgo S190814bv : No counterpart candidate in TAROT-GRANDMA observations
  11. LIGO/Virgo S190814bv: no candidates from GOTO imaging observations
  12. LIGO/Virgo S190814bv: Candidates found in initial DESGW search
  13. LIGO/Virgo S190814bv: Upper limits from AGILE-GRID observations
  14. LIGO/Virgo S190814bv: Update on Sky-Localization and Source-Classification
  15. LIGO/Virgo S190814bv: no candidates from WHT imaging of candidate galaxies
  16. LIGO/Virgo S190814bv: GRAWITA TNG imaging of selected galaxies
  17. LIGO/Virgo S190814bv : no neutrino counterpart candidate in ANTARES search
  18. LIGO/Virgo S190814bv: Coverage and upper limits from MAXI/GSC observations
  19. LIGO/Virgo S190814bv: Liverpool Telescope imaging of selected galaxies
  20. LIGO/Virgo S190814bv: No counterpart candidates in AGILE-MCAL observations
  21. LIGO/Virgo S190814bv: Upper limits from Fermi-GBM Observations
  22. LIGO/Virgo S190814bv: Nordic Optical Telescope imaging of selected galaxies
  23. LIGO/Virgo S190814bv: Identification of a GW compact binary merger candidate
  24. LIGO/Virgo S190814bv: No counterpart candidates in INTEGRAL SPI-ACS prompt observation
  25. LIGO/Virgo S190814bv Global MASTER-Net observations report
  26. LIGO/Virgo S190814bv: Upper limits from IceCube neutrino searches
  27. LIGO/Virgo S190814bv: CLU/NED Galaxies in the 50% Localization Volume

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