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').
47 results found.
- GRB 141121A: GMG observation
- Radio upper limit on the GRB 141121A with the GMRT
- GRB 141121A: Keck observations
- GRB 141121A: further VLA observations
- GRB 141121A: Mondy optical observations
- GRB 141121A: Continued RATIR Optical Observations
- GRB 141121A: VLA radio detection
- GRB 141121A: Continued RATIR Optical Observations
- GRB 141121A: Mondy optical observations
- GRB 141121A: TSHAO optical observations
- GRB 141121A: Continued RATIR Optical Observations
- GRB 141121A: RATIR Optical Observations - Errata for GCN 17105
- GRB 141121A: MITSuME Ishigakijima Optical Observation after 7 days
- GRB 141121A: Khureltogot optical observations
- IPN Triangulation of GRB 141121A (initial episode)
- GRB 141121A: Mondy optical observations
- GRB 141121A: SPI-ACS/INTEGRAL observations
- GRB 141121A: RATIR Optical and NIR Observations
- Konus-Wind observation of GRB 141121A
- GRB 141121A: three epochs of SAO RAS optical observations
- GRB 141121A: Continued RATIR Optical Observations
- GRB 141121A: WSRT radio detection
- GRB 141121A: TSHAO optical observations
- GRB 141121A: Continued Mondy optical observations
- GRB 141121A: Continued RATIR Optical Observations
- GRB 141121A: RATIR Optical Observations - Steeper Fading
- GRB 141121A: AMI 15 GHz detection
- GRB 141121A: MITSuME Ishigakijima Optical Observation after 3 days
- GRB 141121A: RATIR Optical Observations - Fading Again
- GRB 141121A: Mondy optical observations
- GRB 141121A: LCO-FTN rebrightening confirmation
- GRB 141121A: MITSuME Ishigakijima Optical Observation
- GRB 141121A: Continued RATIR Optical Observations - Rebrightening
- GRB 141121A: AAO optical observations
- GRB 141121A: MITSuME Akeno Optical observation
- GRB 141121A: Continued RATIR Optical Observations
- GRB 141121A: Swift-XRT refined Analysis
- GRB 141121A: Swift/UVOT Detections
- GRB 141121A: RATIR Optical Observations
- GRB 141121A: Swift-BAT refined analysis
- GRB 141121A: LCO-FTN observations
- GRB 141121A: Keck redshift
- GRB 141121A: Enhanced Swift-XRT position
- GRB 141121A: GROND Afterglow candidate
- GRB 141121A: MAXI/GSC detection
- GRB141121A: BOOTES-2/TELMA upper limit
- GRB 141121A: Swift detection of a burst