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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').

124 results found.

  1. LIGO/Virgo S190425z: J-GEM optical follow-up observations with Subaru/FOCAS
  2. LIGO/Virgo S190425z: Candidates from the Zwicky Transient Facility
  3. LIGO/Virgo S190425z: Xinglong/Schmidt follow-up observations
  4. LIGO/Virgo S190425z: LOAO Observation
  5. LIGO/Virgo S190425z: Palomar Gattini-IR wide-field infrared follow-up
  6. LIGO/Virgo S190425z: AGILE-GRID Observations
  7. LIGO/Virgo S190425z: Fermi GBM Observations
  8. LIGO/Virgo S190425z: Swift/BAT Counterpart Search
  9. LIGO/Virgo S190425z: SQUEAN Observation
  10. LIGO/Virgo S190425z: MMT Follow-Up Observations
  11. LIGO/Virgo S190425z: INTEGRAL IBIS prompt observation
  12. LIGO-Virgo S190425z: AGILE MCAL observation
  13. LIGO/Virgo S190425z: Lick/KAIT Follow-Up Observations
  14. LIGO/Virgo S190425z: further analysis of INTEGRAL data
  15. LIGO/Virgo S190425z: MAXI/GSC Observations
  16. LIGO/VIRGO S190425z: IceCube Neutrino Search
  17. LIGO/Virgo S190425z: Hobby-Eberly Telescope VIRUS observations of target galaxies.
  18. LIGO/VirgoS190425z: HAWC follow-up
  19. LIGO/Virgo S190425z: SAGUARO follow-up observations
  20. LIGO/Virgo S190425z: Potential host galaxies from the GLADE catalog
  21. LIGO/Virgo S190425z: INTEGRAL SPI-ACS prompt observation
  22. LIGO/Virgo S190425z: INTEGRAL prompt observation
  23. LIGO/Virgo S190425z: Identification of a GW compact binary merger candidate
  24. LIGO/Virgo S190425z Global MASTER-Net observations report

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