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"16 results found.
- GRB 060814 - Keck host detection and redshift
- GRB 060814: Suzaku/WAM observation of the prompt emission
- GRB 060814: pseudo-z from spectral parameters of the prompt
- GRB 060814: Confirmation of IR afterglow
- Konus-Wind observation of GRB 060814
- GRB 060814: Refined analysis of the Swift-BAT burst
- GRB 060814: P60 Observations
- GRB 060814: P200 NIR Observations
- GRB 060814: source inside revised XRT error box
- GRB 060814: Possible IR counterpart
- GRB060814: Swift/UVOT upper limits
- GRB 060814: Swift XRT refined analysis
- GRB 060814: VLT optical limits
- GRB 060814 - SDSS Pre-Burst Observations
- GRB 060814: TAROT optical observations
- GRB 060814: Swift detection of a bright burst