1E 1207.4−5209: The Puzzling Pulsar at the Center of the Supernova Remnant PKS 1209−51/52
| العنوان: | 1E 1207.4−5209: The Puzzling Pulsar at the Center of the Supernova Remnant PKS 1209−51/52 |
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| المؤلفون: | Joachim Trümper, George G. Pavlov, Divas Sanwal, V. E. Zavlin |
| المصدر: | The Astrophysical Journal. 569:L95-L98 |
| بيانات النشر: | American Astronomical Society, 2002. |
| سنة النشر: | 2002 |
| مصطلحات موضوعية: | Physics, Neutron star, Supernova, Pulsar, Space and Planetary Science, Center (category theory), Astronomy and Astrophysics, Astrophysics, Supernova remnant, Coincidence, Luminosity |
| الوصف: | Second Chandra observation of 1E 1207.4-5209, the central source of the supernova remnant PKS 1209-51/52, allowed us to confirm the previously detected period of 424 ms and, assuming a uniform spin-down, estimate the period derivative, Pdot (0.7-3)e-14 s/s. The corresponding characteristic age of the pulsar, P/2Pdot~200-900 kyr, is much larger than the estimated age of the SNR, \~7 kyr. The values of the spin-down luminosity, Edot (0.4-1.6)e34 erg/s, and conventional magnetic field, B (2-4)e12 G, are typical for a middle-aged radio pulsar, although no manifestations of pulsar activity have been observed. If 1E 1207.4-5209 is indeed the neutron star formed in the same supernova explosion that created PKS 1209-51/52, such a discrepancy in ages could be explained either by a long initial period, close to its current value, or, less likely, by a very large braking index of the pulsar. Alternatively, the pulsar could be a foreground object unrelated to the supernova remnant, but the probability of such a coincidence is very low. |
| تدمد: | 1538-4357 0004-637X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::c313acfcd28bf5c41b4bcb2d305c1b0b https://doi.org/10.1086/340640 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........c313acfcd28bf5c41b4bcb2d305c1b0b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15384357 0004637X |
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