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').
16 results found.
- GRB 200215A: LCO Optical Upper Limits
- GRB 200215A: CALET Gamma-Ray Burst Monitor detection
- GRB 200215A: RATIR Optical Observations
- GRB 200215A: UKIRT H-band observations
- GRB 200215A: Swift-BAT refined analysis
- GRB 200215A: Swift-XRT refined Analysis
- GRB 200215A: Swift/UVOT Upper Limits
- GRB 200215A: Enhanced Swift-XRT position
- GRB 200215A: Optical observations form Calar Alto 2.2m
- GRB 200215A: Fermi GBM detection
- GRB 200215A: Liverpool Telescope upper limits
- GRB 200215A Possible host galaxy in PanSTARRS
- GRB 200215A: Nanshan/NEXT optical upper limit
- GRB 200215A: Swift detection of a burst
- GRB 200215A: Fermi GBM Final Real-time Localization
- GRB 200115A: Assy optical observations