Accreting millisecond pulsars: one on each hand
| dc.creator | Linares, Manuel | |
| dc.creator | van der Klis, Michiel | |
| dc.creator | Wijnands, Rudy | |
| dc.date | 2006-10-30 | |
| dc.date.accessioned | 2026-07-07T10:40:40Z | |
| dc.date.available | 2026-07-07T10:40:40Z | |
| dc.description | We report on the X-ray aperiodic timing analysis of two accreting millisecond pulsars: XTE J1807-294 and IGR J00291+5934. On the one hand, we discovered in XTE J1807-294 seven pairs of simultaneous kilohertz quasi-periodic oscillations (kHz QPOs) separated in frequency by nearly the spin frequency of the neutron star. This confirms the suspected dichotomy in the frequency separation of kHz QPOs: sometimes once and sometimes half the spin frequency. On the other hand, we found an extreme behavior in the power spectra of IGR J00291+5934: very strong variability at very low frequencies. Namely, the fractional amplitude of the variability was ~50%, the highest value found so far in a neutron star system. | |
| dc.description | To appear in the proceedings of the conference `The Multicoloured Landscape of Compact Objects and their Explosive Origins' (Cefalu, Sicily, June 2006), AIP | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0610902 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0610902 | |
| dc.identifier | AIPConf.Proc.924:629-634,2007 | |
| dc.identifier | doi:10.1063/1.2775915 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181402 | |
| dc.subject | Astrophysics | |
| dc.title | Accreting millisecond pulsars: one on each hand | |
| dc.type | text |