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').
11 results found.
- GRB 220325A: GRANDMA observations
- GRB 220325A: Swift/UVOT Upper Limits
- GRB 220325A: Swift-BAT refined analysis
- GRB 220325A: Tautenburg observations
- GRB 220325A: LCO Optical Upper Limits
- GRB 220325A: Swift-XRT refined Analysis
- GRB 220325A: 1.3m DFOT Optical upper limit
- Fermi GBM Sub-Threshold Detection of GRB 220325A
- GRB 220325A: Enhanced Swift-XRT position
- GRB 220325A: MASTER Global Robotic Net optical observations
- GRB 220325A: Swift detection of a burst