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').
8 results found.
- GRB 130508A: Swift/UVOT Upper Limits
- GRB 130508A: MITSuME Akeno upper limits
- GRB 130508A: RATIR Optical and NIR Observations
- GRB 130508A: Refined Swift-XRT analysis: Correction to GCN 14612
- GRB 130508A, Swift-BAT refined analysis
- GRB 130508A: MITSuME Okayama upper limits
- GRB130508A: BOOTES-3 optical limit
- GRB 130508A: Swift detection of a probable burst