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').
15 results found.
- GRB 051021 Optical Observations
- GRB 051021, Optical Observations
- GRB 051021: PROMPT RcIc Observations
- GRB 051021: Correction
- GRB 051021, SMARTS optical/IR observations
- GRB 051021: P200 Ks Observations
- GRB 051021: MDM Upper Limit
- GRB051021: Swift/UVOT Upper Limits
- GRB 051021,optical observation
- GRB 051021: SOAR NIR Observations
- GRB 051021 : optical afterglow observation at Lulin
- GRB 051021: Optical observations
- GRB 051021: ROTSE-III Confirmation of Optical Counterpart
- GRB 051021: Optical observations and candidate afterglow
- GRB051021: A GRB Localized by HETE