PSR J0737−3039
Double pulsar in the constellation Puppis / From Wikipedia, the free encyclopedia
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PSR J0737−3039 is the first known double pulsar. It consists of two neutron stars emitting electromagnetic waves in the radio wavelength in a relativistic binary system. The two pulsars are known as PSR J0737−3039A and PSR J0737−3039B. It was discovered in 2003 at Australia's Parkes Observatory by an international team led by the Italian radio astronomer Marta Burgay during a high-latitude pulsar survey.[4]
"Double pulsar" redirects here. For the general topic on double pulsars, see binary pulsar. For the NSA backdoor exploit toolkit, see DoublePulsar.
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
Artist's impression. The objects are not shown to scale: if they were depicted as the size of marbles, they would be 225 m (750 ft) apart. See also MPEG animation (2.4 MB) | |
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Puppis |
Right ascension | 07h 37m 51.248s |
Declination | −30° 39′ 40.83″ |
Characteristics | |
Spectral type | Pulsar |
Variable type | None |
Astrometry | |
Distance | 3200–4500 ly (1150 pc) |
Orbit[1] | |
Primary | PSR J0737−3039 A |
Companion | PSR J0737−3039 B |
Period (P) | 2.45 h |
Eccentricity (e) | 0.088 |
Details | |
PSR J0737−3039A | |
Mass | 1.338 M☉ |
Rotation | 22.699379709166 ms[2][3] |
PSR J0737−3039B | |
Mass | 1.249 M☉ |
Rotation | 2.7734613324 s[2][3] |
Other designations | |
2XMM J073751.4−303940 | |
Database references | |
SIMBAD | data |
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