Timing and X-ray spectral features of Swift J1626.6-5156
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, cilt.415, sa.2, ss.1523-1526, 2011 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 415 Sayı: 2
- Basım Tarihi: 2011
- Doi Numarası: 10.1111/j.1365-2966.2011.18796.x
- Dergi Adı: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.1523-1526
- Anahtar Kelimeler: accretion, accretion discs, stars: neutron, pulsars: individual: Swift J1626.6-5156, X-rays: binaries, MAGNETIZED NEUTRON-STARS, PULSAR ATMOSPHERES, ACCRETING PULSARS, TORQUE, MODELS, PERIOD
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
In this paper, we extend the timing analysis by Baykal et al. of Swift J1626.6-5156 using RXTE-PCA observations between MJD 53724 and MJD 55113 together with a Chandra-ACIS observation on MJD 54897 with a 20-ks exposure. We also present the X-ray spectral analysis of these RXTE and Chandra observations. We find that the spin-up rate of the source is correlated with the X-ray flux. Using this correlation, we estimate the distance and surface magnetic field of the source as similar to 15 kpc and similar to 9 x 10(11) G, respectively. From the spectral analysis, we find that the power-law index increases and hydrogen column density decreases with a decreasing flux.