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').
Advanced Search
To narrow the search results, use advanced search syntax. This allows for specifying which circular field to search (submitter, subject, and/or body). For additional information, refer to the advanced search documentation.
Advanced Search Examples (click to copy):
subject:"Swift"body:"GRB"submitter:"Judith Racusin"19 results found.
- GRB 160410A: SMARTS optical/IR observations
- GRB 160410A: TLS Tautenburg observations
- GRB 160410A: JCMT SCUBA-2 sub-mm observation
- GRB 160410A: further NOT optical observations
- GRB 160410A: NOT observations of the afterglow
- GRB 160410A: UKIRT near-IR upper limits
- Konus-Wind observation of GRB 160410A (short/hard)
- GRB 160410A: TAROT La Silla observatory early optical observations
- GRB 160410A: MITSuME Akeno optical upper limits
- GRB 160410A: Swift-XRT refined Analysis
- GRB 160410A: GMG observation
- GRB 160410A: Keck-I/LRIS redshift
- GRB 160410A: Skynet PROMPT-CTIO observations of the optical afterglow
- GRB 160410A: Swift-BAT refined analysis of the short GRB
- GRB 160410A: Swift/UVOT Detection
- GRB 160410A: VLT/X-shooter redshift
- GRB 160410A: Enhanced Swift-XRT position
- GRB 160410A: GROND optical detection
- GRB 160410A: Swift detection of a (possibly-short) burst with an optical counterpart