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.
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').
32 results found.
- GRB 221009A: Armchair Energetics
- GRB 180720B: Testing the universality of the newly born neutron star in BdHNe
- GRB 160625B: Global MASTER-Crimea prompt optical emission detection (fwd)
- GRB 160625B: TSHAO optical observations
- GRB 160625B: RTT150 optical observations
- GRB 160625B: SAO RAS monitoring
- GRB 160625B: LCOGT FTN observations
- GRB 160625B: TSHAO optical observations, correction GCN 19619
- GRB 160625B: TSHAO optical observations
- GRB 160625B CALET Gamma-Ray Burst Monitor detection
- GRB 160625B: SMARTS optical/IR afterglow observations
- Pi of the Sky detection of an optical flash accompanying GRB 160625B
- GRB 160625B: Global MASTER-Net prompt optical emission detection
- GRB 160625B: SAO RAS optical observations
- GRB 160625B: 15 GHz detection from AMI
- GRB 160625B: VLA Detection
- GRB 160625B: TSHAO optical observations
- Konus-Wind observation of GRB 160625B
- GRB 160625B: Mini-MegaTORTORA detection of bright optical flash simultaneous with LAT event
- GRB 160625B: RATIR Optical and NIR Observations
- GRB 160625B: TNG redshift confirmation
- GRB 160625B: VLT/X-shooter redshift
- GRB 160625B: MITSuME Ishigakijima Optical Observation
- GRB 160625A: Swift-BAT refined analysis
- GRB 160625B: Swift/UVOT Detection
- GRB 160625B: RATIR Optical and NIR Afterglow Detection
- GRB 160625B: Fermi GBM refined analysis
- GRB 160625B: Fermi-LAT refined analysis
- GRB 160625B: Swift-XRT afterglow detection
- GRB 160625B: Tiled Swift observations
- GRB 160625B: Fermi GBM initial observations
- GRB 160625B: Fermi-LAT detection of a bright burst