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Krap-pulsar

Krap-pulsar
Die Krap-newel, waar die Krab-pulsar geleë is.
Die Krap-newel, waar die Krab-pulsar geleë is.
Sterrebeeld Bul
Soort Neutronster
Waarnemingsdata (Epog J2000)
Regte klimming 05h 34m 31.97s
Deklinasie +22° 00′ 52.1″
Skynmagnitude (m) 16,5
Besonderhede
Massa (M☉) 1,4[1]
Radius (R☉) ~1,437815 × 10−5[1]
Ouderdom (jaar) 960
Temperatuur (K) Kern: ~3 × 108[1]
Oppervlak: ~1,6 × 106
Ander name
SNR G184.6-05.8, 2C 481, 3C 144.0, SN 1054A, 4C 21.19, NGC 1952, PKS 0531+219, PSR B0531+21, PSR J0534+2200, CM Tau.
Portaal  Portaalicoon   Sterrekunde
’n X-straalfoto van die Krap-pulsar (Chandra).

Die Krap-pulsar (PSR B0531+21) is ’n relatief jong neutronster. Dit is die middelste ster van die Krap-newel, ’n oorblyfsel van die supernova SN 1054, wat in 1054 oor ’n groot deel van die Aarde waargeneem is.[2][3][4] Dit is in 1968 ontdek en is die eerste pulsar wat met ’n supernova verbind is.[5]

  1. ↑ 1,0 1,1 1,2 ROSAT HRI Observations of the Crab Pulsar An Improved Temperature Upper Limit for PSR 0531+21, W. Becker and B. Aschenbach, Max-Planck-Institut Fur Extraterrestrische Physik (1994)
  2. ↑ Supernova 1054 – Creation of the Crab Nebula
  3. ↑ Duyvendak, J.J.L. (1942), "Further Data Bearing on the Identification of the Crab Nebula with the Supernova of 1054 A.D. Part I. The Ancient Oriental Chronicles", Publications of the Astronomical Society of the Pacific 54: 91, doi:10.1086/125409, Bibcode: 1942PASP...54...91D 
    Mayall, N. U.; Oort, Jan Hendrik (1942), "Further Data Bearing on the Identification of the Crab Nebula with the Supernova of 1054 A.D. Part II. The Astronomical Aspects", Publications of the Astronomical Society of the Pacific 54: 95, doi:10.1086/125410, Bibcode: 1942PASP...54...95M 
  4. ↑ Brandt, K.; et al. (1983), "Ancient records and the Crab Nebula supernova", The Observatory 103: 106, Bibcode: 1983Obs...103..106B 
  5. ↑ Zeilik, Michael; Gregory, Stephen A. (1998), Introductory Astronomy & Astrophysics (4th ed.), Saunders College Publishing, p. 369, ISBN 0-03-006228-4 

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