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').
31 results found.
- LIGO/Virgo S200114f: Gemini Spectra of AT 2020vu, AT 2020vw, AT 2020vy, and AT 2020vz
- LIGO/Virgo S200114f : No significant candidates in TAROT - FRAM - GRANDMA observations
- LIGO/Virgo S200114f: AstroSat CZTI upper limits
- LIGO/Virgo S200114f: Upper limits from Konus-Wind observations
- LIGO/Virgo S200114f: SOAR spectroscopy of AT2020zf, AT2020ace and AT2020ach
- LIGO/Virgo S200114f: More candidates from the Zwicky Transient Facility
- LIGO/Virgo S200114f: No transients found in J-GEM observations of nearby galaxies
- LIGO/Virgo S200114f: ZTF Forced Photometry of the Swift Source S200114f_X2
- LIGO/Virgo S200114f: Upper Limits from Wide-Field Infrared Search with Palomar Gattini-IR
- LIGO/Virgo S200114f: Possible X-ray transient
- LIGO/Virgo S200114f: Swift-XRT sources and observations
- LIGO/Virgo S200114f: No counterpart in targeted WHT/ACAM imaging
- LIGO/Virgo S200114f: AT2020vr, AT2020vt, AT2020wa and AT2020wc 10.4m GTC spectroscopy
- LIGO/Virgo S200114f: Upper limits from CALET observations.
- LIGO/Virgo S200114f: Candidates from SAGUARO observations
- LIGO/Virgo S200114f: No Counterparts in DDOTI/OAN Optical Observations
- LIGO/Virgo S200114f: Constraints on a CCSN origin from KM3NeT MeV neutrino search.
- LIGO/Virgo S200114f: SAGUARO previous detection of ZTF candidate ZTF20aafeaqk (AT2020vx)
- LIGO/Virgo S200114f: upper limits from AGILE-GRID observations
- LIGO/Virgo S200114f: no counterpart candidates in the Swift/BAT observations
- LIGO/Virgo S200114f: No counterpart candidates in Fermi-LAT observations
- LIGO/Virgo S200114f: not observable by AGILE at the event time
- LIGO/Virgo S200114f: No counterpart candidates in INTEGRAL SPI-ACS and IBIS prompt observation
- LIGO/Virgo S200114f : no neutrino counterpart candidate in ANTARES search
- LIGO/Virgo S200114f: Candidates from the Zwicky Transient Facility
- LIGO/Virgo S200114f: Upper limits from Fermi-GBM Observations
- LIGO/Virgo S200114f: Coverage and upper limits from MAXI/GSC observations
- LIGO/Virgo S200114f: Identification of a GW unmodeled transient candidate
- LIGO/Virgo S200114f: No counterpart candidates in HAWC observations
- LIGO/Virgo S200114f: Upper limits from IceCube neutrino searches
- LIGO/Virgo S200114f: Global MASTER-Net observations report