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').
13 results found.
- GRB 141221A: Keck spectroscopy
- GRB 141221A: TAROT La Silla observatory optical observations
- GRB 141221A: MITSuME Akeno upper limits
- GRB 141221A: Continued Skynet PROMPT-CTIO observations
- GRB 141221A: Swift/UVOT Detection
- GRB 141221A: Fermi GBM observation
- GRB 141221A: Swift-XRT refined Analysis
- GRB 141221A: Swift-BAT refined analysis
- GRB141221A: GROND Afterglow Detection
- GRB 141221A: Enhanced Swift-XRT position
- GRB 141221A: Skynet PROMPT-CTIO observations of the optical afterglow
- GRB 141221A: LCOGT-McDonald optical afterglow observations
- GRB 141221A: Swift detection of a burst with an optical counterpart