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').
19 results found.
- GRB 220310C: Swift/BAT-GUANO candidate arcminute localization
- GRB 211106A: Third HST Observation
- GRB 211106A: XMM-Newton monitoring campaign detections
- GRB 211106A: Second HST Observation
- GRB 211106A: GECAM detection
- GRB 211106A: HST Observations
- GRB 211106A: Chandra Observations
- GRB 211106A: Swift/UVOT upper limits
- IPN triangulation of GRB 211106A (short)
- Short GRB 211106A: spectroscopy of galaxies in the field
- GRB 211106A: VLT/FORS2 optical observations
- GRB 211106A, GROND observations
- GRB 211106A: Swift-XRT afterglow detection
- MeerLICHT follow-up of GRB 211106A
- Fermi GBM Sub-Threshold Detection of GRB 211106A
- Konus-Wind detection of GRB 211106A
- GRB 211106A: Swift-XRT observations
- GRB 211106A: Swift ToO observations
- GRB 211106A: Swift/BAT-GUANO candidate arcminute localization of a short burst