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').
23 results found.
- LIGO/Virgo S190426c: Lick/KAIT Follow-Up Observations
- GRB 081211B: Nearby cluster
- GRB 080503: 2nd Epoch Chandra X-ray Observations
- GRB 080503: Further HST imaging
- GRB 080503: Chandra Observation of X-ray Rebrightening or Flattening
- GRB 080503: Hubble Space Telescope Imaging
- GRB 080503: Fading in continued Gemini imaging
- GRB 080503: VLA radio upper limit
- GRB 080503: Observations from NOT
- GRB 080503: Slow-rise optical AG ?
- GRB 080503: No further optical rebrightening
- GRB 080503: Late-time Optical rebrightening (possible mini-SN) - correction
- GRB 080503: Late-time Optical rebrightening (possible mini-SN)
- GRB 080503, Swift-BAT lag and time-resolved spectral analysis
- GRB 080503: MITSuME Ishigakijima optical upper limits
- GRB080503: Swift/UVOT Upper Limits
- GRB080503 XRT refined analysis
- GRB 080503, Swift-BAT refined analysis
- GRB 080503: Enhanced Swift-XRT position
- GRB 080503: MITSuME Akeno optical upper limits
- GRB 080503: New candidate afterglow/host in Gemini imaging
- GRB 080503: Optical afterglow candidate and LRIS spectroscopy of the short burst
- GRB 080503: Swift detection of a short burst