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').
18 results found.
- GRB 200522A: HST NIR counterpart confirmation
- GRB 200522A: Candidate Optical/nIR Counterpart from Gemini and HST Imaging
- GRB 200522A: Gemini North spectroscopy of the putative host galaxy
- GRB 200522A: Further HST F125W Observations
- GRB 200522A: HST F125W new point source detection
- GRB 200522A: Hubble Space Telescope Near-IR F160W Observations
- GRB 200522A: Gemini North optical imaging
- GRB 200522A: Correction to GCN 27792
- GRB 200522A: Swift-BAT refined analysis
- GRB 200522A: LCO Optical Afterglow Detection
- Swift GRB 200522A: Global MASTER-Net observations report
- GRB 200522A: 6 GHz VLA radio source detection
- GRB 200522A: Swift-XRT refined Analysis
- GRB 200522A: BOOTES-3/YA optical upper limit
- GRB 200522A: Swift/UVOT Upper Limits
- GRB 200522A: Enhanced Swift-XRT position
- GRB 200522A: Coincident catalogued galaxy at z~0.4
- GRB 200522A: Swift detection of a short burst