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 100206A: optical observations in CrAO
- GRB 100206A: optical observations in Terskol
- GRB 100206A: Second epoch Gemini-north observations and afterglow limits
- GRB 100206A: GROND upper limits
- GRB 100206A: Gemini-North observations
- GRB 100206A: Swift/UVOT Upper Limits
- GRB 100206A: YNAO-GMG observations
- GRB 100206A: MASTER-Net optical alert observations
- GRB 100206A: PAIRITEL Photometry of Host Candidate
- GRB 100206A - Keck/LRIS Spectroscopy
- GRB100206: MITSuME optical upper limits
- GRB 100206A: NOT NIR observations
- GRB 100206A: WHT candidate afterglow
- GRB 100206A, RIMOTS optical upper limits
- GRB 100206A: optical observations from Southern Spain
- GRB 100206A: Swift-XRT refined analysis
- GRB 100206A: Fermi GBM observation
- GRB 100206A: Optical limit
- GRB 100206A: Swift-BAT refined analysis
- GRB 100206A: Enhanced Swift-XRT position
- GRB 100206A: Pre-explosion imaging and host candidate
- GRB 100206A: Swift detection of a short hard burst