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').
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').
14 results found.
- LIGO/Virgo S200129m: Upper limits from Insight-HXMT/HE observations
- LIGO/Virgo S200129m: Upper limits from Konus-Wind observations
- LIGO/Virgo S200129m: Upper limits from CALET observations.
- LIGO/Virgo S200129m: no counterpart candidates in the Swift/BAT observations
- LIGO/Virgo S200129m: NED Galaxies in the 50% Localization Volume
- LIGO/Virgo S200129m: No counterpart candidates in Fermi-LAT observations
- LIGO/Virgo S200129m: Not observable by Fermi-GBM
- LIGO/Virgo S200129m: Global MASTER-Net observations report
- LIGO/Virgo S200129m: upper limits from AGILE/GRID observations
- LIGO/Virgo S200129m: upper limits from AGILE/MCAL observations
- LIGO/Virgo S200129m: Coverage and upper limits from MAXI/GSC observations
- LIGO/Virgo S200129m: No counterpart candidates in INTEGRAL SPI-ACS prompt observation
- LIGO/Virgo S200129m: Upper limits from IceCube neutrino searches
- LIGO/Virgo S200129m: Identification of a GW compact binary merger candidate