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.
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').
42 results found.
- GRB 220101A: The first example of a Petanova
- GRB 220101A: KAO optical-R observation
- GRB 220101A: TSHAO optical observation, Terskol, AbAO upper limits
- GRB 220101A: The most powerful GRB and BDHN I in 26 years
- GRB 220101A: continued 1.3m DFOT optical observations of a high-redshift afterglow
- Konus-Wind detection of GRB 220101A (correction to GCN 31433)
- Konus-Wind detection of GRB 220101A
- GRB 220101A: Additional Liverpool telescope photometry
- GRB 220101A: SAO RAS optical observations
- GRB 220101A: Tautenburg observations
- GRB 220101A: Continued Mondy optical observations
- GRB 220101A: further TNG NIR observations
- GRB 220101A: continued 1.3m DFOT Optical Observations
- GRB 220101A: Mondy optical observations
- GRB 220101A: 3rd LCO Optical Observation
- GRB 220101A: 2.2m CAHA (+CAFOS) first day optical detection
- GRB 220101A: iTelescope optical observations
- GRB 220101A: VLA detection
- GRB 220101A: 1.3m DFOT observations
- GRB 220101A: LCO Continued Optical Observations
- GRB 220101A: TNG NIR afterglow detection
- GRB 220101A: ALMA detection
- GRB 220101A: LCO Optical Observations
- GRB 220101A: Tautenburg observations
- GRB 220101A: Swift-BAT refined analysis
- GRB 220101A: GMG observation (2nd epoch)
- GRB 220101A: OASDG optical observations
- GRB 220101A : Eiso equals the maximum isotropic GRB energy
- GRB 220101A: GMG observation
- GRB 220101A: Asiago spectroscopic and photometric detection
- GRB 220101A: Fermi GBM Detection
- GRB 220101A: NOT redshift confirmation
- GRB 220101A: CAHA 2.2m/CAFOS detection
- GRB 220101A: Liverpool telescope imaging of a high-redshift afterglow
- GRB 220101A: THO optical observations
- GRB 220101A: Swift-XRT refined Analysis
- GRB 220101A: AGILE detection
- GRB 220101A: Xinglong-2.16m photometry and spectroscopy
- GRB 220101A: Fermi-LAT detection
- GRB 220101A: Enhanced Swift-XRT position
- GRB 220101A: Correction to GCN 31347
- GRB 220101A: Swift detection of a burst with a bright optical counterpart