PSR B0833-45

Database links to PSR B0833-45

Pulsar PSR B0833-45 (Vela Pulsar)
Vela Pulsar is the bright point in the middle, surrounded by a pulsar wind nebula , in which plasma shock waves and radial jets can be seen.
Observation dates equinox :  J2000.0 , epoch : J2000.0
Constellation	Sails of the ship
Right ascension	08 h 35 m 20.66 s
declination	−45 ° 10 ′ 35.2 ″
Astrometry
distance	${\displaystyle 936_{-56}^{+62}}$ Lj pc ${\displaystyle 287_{-17}^{+19}}$
Physical Properties
Other names and catalog entries
Catalog of pulsars PSR J0835−4510 PSR J0834−4511 PSR B0833−45 Second EGRET Gamma-ray catalog 2EG J0835−4513 Third EGRET Gamma-ray catalog 3EG J0834−4511 ROSAT All-Sky Bright Source Catalog 1RXS J083520.6-451035 Swell: ^ Catalog of Pulsars ^ Catalog of Pulsars ^ Catalog of Pulsars ↑ 2nd EGRET catalog ↑ > 3rd EGRET catalog ↑ ROSAT catalog
Aladin previewer

The pulsar PSR B0833-45 , also known as the Vela pulsar , is located in the constellation of the ship's sails . It was discovered in 1968. In 1977 it was one of the few pulsars to be identified as a remnant of a supernova in the optical range . It is parsec (936 light years ) away. It comes from the Vela supernova ; it is spatially closest that could be determined from the known remains of the past 50,000 years. The period of rotation of the pulsar is 89 ms, its increase 10.7 ns per day. This results in a very young age of around 11,000 years. ${\displaystyle 287_{-17}^{+19}}$

Image sequence of the Fermi Gamma-ray Space Telescope (slow motion)

The Vela pulsar not only radiates in the visible and microwave range, but is also one of the strongest gamma radiation sources in the sky. The spectrum corresponds to that of a thermal black-body radiator with a temperature of from 600,000 to 1,000,000 K .

At around 800 light years, the Vela pulsar and Geminga are roughly the same distance from Earth, making them the two closest known pulsars.

Web links

Commons : Vela Pulsar  - collection of images, videos and audio files

• Microwave radiation as a sound file
• Film sequence of the jet of the Vela pulsar

Individual evidence

1. ↑ Vela Pulsar. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed on October 19, 2019 . 
2. ↑ ^{a b} R. Dodson, D. Legge, JE Reynolds, PM McCulloch: The Vela Pulsar's Proper Motion and Parallax Derived from VLBI Observations . In: Astrophysical Journal . tape 596 , no. 2 , 2003, p. 1137–1141 , bibcode : 2003ApJ ... 596.1137D .