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').
23 results found.
- GRB 060121 : pseudo-z = 1.9 ('intermediate-duration' burst)
- GRB 060121: HST observations
- GRB 060121 : WIDGET Pre-trigger limit
- GRB 060121: Gemini Late-time Observations
- GRB 060121: Confirmation of NIR Afterglow
- GRB 060121: Probable Detection of NIR Afterglow
- GRB 060121: OHP optical limits
- GRB 060121: Swift/UVOT upper limits
- GRB 060121: Liverpool Telescopes optical limits
- GRB 060121: Swift XRT refined analysis
- Konus-Wind observation of GRB 060121
- GRB 060121: I-band Limits
- GRB 060121: Confirmation of Afterglow
- GRB 060121: candidate optical counterpart
- GRB 060121: Swift XRT refined position
- GRB 060121: optical observations
- GRB 060121: Infrared Observations
- GRB 060121: optical observations
- GRB 060121: Optical imaging
- GRB 060121: A short-hard GRB in a cluster?
- GRB 060121 (=H4010): Results of preliminary spectral analysis
- GRB 060121: A bright short/hard GRB localized by HETE-2 SXC
- GRB 060121: A bright short/hard GRB localized by HETE-2 WXM