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').
15 results found.
- GRB 081211B: Nearby cluster
- GRB 061201: Nearby Galaxy Cluster Abell 995 is at z=0.0865
- GRB 061201: Magellan redshift of nearby galaxy
- GRB 061201: Correction to GCN 5944
- GRB 061201: Magellan Redshift of nearby Abell cluster
- GRB 061201: UVOT Observations of a Fading Optical Afterglow
- GRB 061201: VLT optical decay
- GRB 061201: SOAR Confirmation of Candidate Afterglow
- Konus-Wind observation of GRB 061201
- GRB 061201: Swift XRT Team refined analysis
- GRB 061201: VLT optical observations
- GRB 061201: Initial UVOT Observations
- GRB 061201, Swift-BAT refined analysis of the SHB
- GRB 061201: Swift detection of a short hard burst
- GRB 061201: Coincidence with a Galaxy Cluster