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').
22 results found.
- GRB161004A: Further analysis of the burst nature
- GRB 100816A: Fermi GBM observation (correction to GCN 11124)
- Konus-Wind observation of GRB 100816A
- GRB100816A: MITSuME optical upper limits
- GRB 100816A: 10.4-m GTC redshift confirmation
- GRB 100816A: Fermi GBM observation
- GRB 100816A: VLT and Gemini-N revised redshift
- GRB 100816A: NOT optical observations
- GRB 100816A : Lulin r'-band observation
- GRB 100816A: Gemini-N spectroscopy
- GRB 100816A: Swift UVOT Observations
- GRB100816A Swift-XRT refined analysis
- GRB 100816A: Swift-BAT spectral lag results
- GRB 100816A: 1.23m CAHA optical observations
- GRB 100816A, Swift-BAT refined analysis
- GRB 100816A: Enhanced Swift-XRT position
- GRB 100816A: Gemini-N imaging
- GRB 100816A: CQUEAN riz-band Detection, Host Galaxy?
- GRB 100816A: TAROT Calern observatory optical detection
- GRB 100816A: MASTER Optical Limits
- GRB 100816A: ROTSE-III Optical Limits
- GRB 100816A: Swift detection of a possibly short burst with optical afterglow