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').
22 results found.
- GRB 111225A: Archeological redshift of the Christmas Burst 2011 from GTC
- GRB 111225A: optical observations
- GRB 111225A, the review of the sky area in plate archives
- GRB111225A: RAPTOR Early Detection of the Optical Counterpart
- GRB 111225A: optical observations in CrAO
- GRB 111225A: Lightbuckets Optical Observations
- GRB111228A: MITSuME Okayama Optical Observation
- GRB 111225A, optical observations
- GRB 111225A: Swift/UVOT Observations
- GRB 111225A: Keck/LRIS Afterglow Photometry
- GRB 111225A: PAIRITEL NIR Upper Limits
- GRB111225A: MITSuME Okayama optical upper limits
- GRB 111225A: GRT Optical Observation
- GRB 111225A: 1.23m CAHA optical observations
- GRB 111225A: Swift-XRT refined Analysis
- GRB 111225A, Swift-BAT refined analysis
- GRBv111225A: Xinglong TNT optical afterglow
- GRB 111225A: Enhanced Swift-XRT position
- GRB 111225A: Super-LOTIS early detection
- GRB 111225A: TAROT Calern observatory optical detection
- GRB 111225A: TAROT Calern observatory optical observations
- GRB 111225A: Swift detection of a burst with an optical counterpart