PSR J0108−1431
Pulsar in the constellation Cetus
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PSR J0108−1431 is a solitary neutron star manifesting as a pulsar located at a distance of about 130 parsecs (424 light-years) in the constellation Cetus. It was discovered in 1994 during the Parkes Southern Pulsar Survey.[7] This object is young as a neutron star (with an estimated age of 166 million years) but old as a pulsar, with a slow spin period of 0.8075 seconds.[4] The rotational energy being generated by the spin-down of this pulsar is 5.8 × 1023 W and the surface magnetic field is 2.5 × 107 T. As of 2008, it was the second-faintest pulsar seen from Earth.[3]
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Cetus[1] |
| Right ascension | 01h 08m 08.29s[2] |
| Declination | −14° 31′ 48.5″[2] |
| Apparent magnitude (V) | ≥ 27.8[3] |
| Astrometry | |
| Proper motion (μ) | RA: 92 ± 44[4] mas/yr Dec.: −176 ± 70[4] mas/yr |
| Distance | 424[5] ly (130 pc) |
| Details | |
| Temperature | 88,000[6] K |
| Rotation | 0.807564614019 s[4] |
| Age | 166[4] Myr |
| Database references | |
| SIMBAD | data |
An X-ray emission with an energy flux of (9 ± 2) × 10−18 W m−2 was detected in the 0.3−8 keV band using the Chandra X-ray Observatory. This X-ray energy is generated from the conversion of 0.4% of the pulsar's spin-down power. As of 2009, PSR J0108−1431 is the least powerful of the ordinary pulsars that have been detected in the X-ray range.[4]
The "Very Large Telescope" at the European Southern Observatory in Northern Chile observed a possible optical counterpart of this neutron star. The object has an apparent magnitude that is (X ≤ 27.8).[3] No companions have been discovered in orbit around this object.[5]