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').
15 results found.
- GRB 170208B: SMARTS optical/IR observations
- GRB 170208B: IRSF upper limits
- GRB 170208B: Swift/UVOT Upper Limits
- GRB 170208B: RATIR Optical and NIR Observations
- GRB 170208B: Swift-BAT refined analysis
- Correction to GCN 20640: GRB 170208B: GROND observations
- GRB 170208B WHT nIR candidate afterglow
- GRB 170208B: Fermi GBM Detection
- Konus-Wind observation of GRB 170208B
- GRB 170208B: GROND observations
- GRB 170208B: NOT upper limits
- GRB 170208B: Swift-XRT refined Analysis
- GRB 170208B: Etelman observatory optical observations
- GRB 170208B: Enhanced Swift-XRT position
- GRB 170208B: Swift detection of a burst