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GCN Circulars |
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ICRANet 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.
- GRB 241025A: The discovery of a BdHN I from data of Swift, Fermi, SVOM and Einstein Probe telescopes
- Request for Supernova related data for GRB 101023A
- Redshift of GRB 110402A theoretically estimated
- Redshift of GRB 110402A theoretically estimated (revised)
- GRB 240825A: The nature of the afterglow motivates the search of the associated supernova
- GRB 130702A in the Ep,i - Eiso plane
- GRB 131024C: ICSP discovery of a burst in X-rays by balloon borne study
- GRB 151027A: LCOGT-McDonald afterglow observations
- GRB 151027B: LCOGT FTN afterglow observations
- GRB 151029A: LCOGT-FTS afterglow observations
- GRB 151111A: LCOGT-FTS afterglow observations
- GRB 151114A: LCOGT-FTS afterglow observations
- GRB 160104A: LCOGT-FTN afterglow candidate
- GRB 160303A: LCOGT-FTN optical observations
- GRB 180720B: Testing the universality of the newly born neutron star in BdHNe
- GRB 180728A: A long GRB of the X-ray flash (XRF) subclass, expecting supernova appearance
- GRB 190114C: A type 1 BdHN with TeV emission
- GRB 210210A as a BdHN II
- GRB 210410A: A twin of short GRB 090510 with complementary observations
- GRB 210411C: A very significant early X-ray afterglow
- GRB 211023A: A BdHN of type I
- GRB 220101A: The most powerful GRB and BDHN I in 26 years
- GRB 220101A: The first example of a Petanova
- GRB 220527A: A BdHN I with a clear UPE phase
- GRB 221009A: A type I BdHN of exceptional energetics
- GRB 221009A X-ray light-curve and the indication of TeV light-curve
- GRB 221009A: Peak luminosity of the supernova vs. synchrotron afterglow
- GRB 221009A: Determination of the black holes mass and spin
- GRB 230430A: A short GRB from a neutron star merger
- transient AT2023sva: A Binary Driven Hypernova with a possible associated supernova
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