Epoch J2000.0 Equinox J2000.0
|Declination||+09° 51' 54" |
|Apparent magnitude (V)||?|
|Distance||0.63 ± 0.10 k pc|
|Spectral type||neutron star|
|U−B color index||?|
|B−V color index||?|
|Mass||~ 0.02 M☉|
|Radius||~ 2.6km R☉|
|Age||5 × 106 years|
The pulsar is estimated to be 5 million years old, which is relatively old for a pulsar. It has a rotational period of 1.1 seconds and emits both radio waves and X-rays. Ongoing research at the University of Vermont discovered that the pulsar was found to flip on a roughly a few hours timescale between a radio bright mode with highly organized pulsations and a quieter mode with rather chaotic temporal structure.
Moreover, the observations of the pulsar performed simultaneously with the European Space Agency's XMM-Newton X-ray observatory and ground-based radio telescopes revealed that it exhibits variations in its X-ray emission that mimic in reverse the changes seen in radio waves—the pulsar has a weaker non-pulsing X-ray luminosity during the radio bright mode and is actually brighter during the radio quite mode emitting distinct X-ray pulses. Such changes can only be explained if the pulsar's magnetosphere (which may extend up to 52,000 km from the surface) quickly switches between two extreme states. The change happens on a few seconds timescale, far faster than most pulsars. Despite being one of the first pulsars discovered the mechanism for its unusual behavior is unknown.
- Zang, Bing; Sanwal, Divas & Pavlov, George G. (2005). "An XMM-Newton Observation of the Drifting Pulsar B0943+10". Astrophysical Journal: L109–L112.
- Yue, Y. L.; Cui, X. H.; Xu, R. X. (2006). "Is PSR B0943+10 a low-mass quark star?" (PDF). Astrophysical Journal: 1. arXiv: . Bibcode:2006ApJ...649L..95Y. doi:10.1086/508421.
- Elizabeth Howell (January 24, 2013). "Weird Spinning Star Defies Explanation". Space.com. Retrieved January 31, 2013.
- G.S. Mudur (January 25, 2013). "Pune telescope spots Jekyll & Hyde puzzle in sky". The Telegraph, India. Retrieved January 31, 2013.
- ESA (January 25, 2013). "Baffling pulsar leaves astronomers in the dark". Astronomy.com. Retrieved January 31, 2013.
- Staff (January 24, 2013). "Chameleon Pulsar Dramatically Changes the Way It Shines". Sciencedaily.com. Retrieved January 31, 2013.
- Hermsen, W.; Hessels, J. W. T.; Kuiper, L.; Van Leeuwen, J.; Mitra, D.; De Plaa, J.; Rankin, J. M.; Stappers, B. W.; Wright, G. A. E.; Basu, R.; Alexov, A.; Coenen, T.; Grießmeier, J. - M.; Hassall, T. E.; Karastergiou, A.; Keane, E.; Kondratiev, V. I.; Kramer, M.; Kuniyoshi, M.; Noutsos, A.; Serylak, M.; Pilia, M.; Sobey, C.; Weltevrede, P.; Zagkouris, K.; Asgekar, A.; Avruch, I. M.; Batejat, F.; Bell, M. E.; Bell, M. R. (2013). "Synchronous X-ray and Radio Mode Switches: A Rapid Global Transformation of the Pulsar Magnetosphere". Science. 339 (6118): 436–439. arXiv: . Bibcode:2013Sci...339..436H. doi:10.1126/science.1230960. PMID 23349288.