PSR J0108-1431
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Cetus |
| Right ascension | 01h 08m 08.29s[1] |
| Declination | –14° 31′ 48.5″[1] |
| Apparent magnitude (V) | ≤ 27.8[2] |
| Astrometry | |
| Proper motion (μ) | RA: 92 ± 44[3] mas/yr Dec.: −176 ± 70[3] mas/yr |
| Distance | 424[4] ly (130 pc) |
| Details | |
| Temperature | 88,000[5] K |
| Rotation | 0.808 s[3] |
| Age | 166 million[3] years |
PSR J0108-1431 is a solitary pulsar located at a distance of about 130 parsecs (424 light years) in the constellation Cetus. This pulsar was discovered in 1994 during the Parkes Southern Pulsar Survey.[6] It is considered a very old pulsar with an estimated age of 166 million years and a rotation period of 0.8 seconds.[3] 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 is the second faintest known pulsar.[2]
An X-ray emission with an energy flux of (9 ± 2) × 1012 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.[3]
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).[2] No companions have been discovered in orbit around this object.[4]
References
- ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found. Based upon black body model.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Lua error in package.lua at line 80: module 'strict' not found.
