SGR 1935+2154
SGR 1935+2154 (or SGR J1935+2154) is a soft gamma repeater (SGR) that is an ancient stellar remnant, in the constellation Vulpecula, originally discovered in 2014 by the Neil Gehrels Swift Observatory. Currently, the SGR-phenomena and the related anomalous X-ray pulsars (AXP) are explained as arising from magnetars. On 28 April 2020, this remnant about 30,000 light-years away in our Milky Way galaxy was observed to be associated with a very powerful radio pulse known as a fast radio burst or FRB (designated FRB 200428), and a related x-ray flare. The detection is notable as the first FRB detected inside the Milky Way, and the first to be linked to a known source. Later in 2020, SGR 1935+2154 was found to be associated with repeating fast radio bursts.
Example of a fast radio burst (FRB) from outer space to Earth (artist concept) | |
Observation data Epoch J2000 Equinox J2000 | |
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Constellation | Vulpecula |
Right ascension | 19h 35m |
Declination | +21° 54' |
Apparent magnitude (V) | ? |
Database references | |
SIMBAD | data |
Other designations | |