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Nustar and swift observations of the fast rotating magnetized white dwarf ae aquarii (Document No: 20140017438)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hailey, Charles J. Harrison, Fiona A. Kitaguchi, Takao Beloborodov, Andrei M. Christensen, Finn E. Kaspi, Victoria M. Stern, Daniel Zhang, Will W. Rana, Vikram R. Craig, William W. An, Hongjun Boggs, Steven E. Gotthelf, Eric V. Hayashi, Takayuki |
| Copyright Year | 2014 |
| Description | AE Aquarii is a cataclysmic variable with the fastest known rotating magnetized white dwarf (P(sub spin) = 33.08 s). Compared to many intermediate polars, AE Aquarii shows a soft X-ray spectrum with a very low luminosity (LX (is) approximately 10(exp 31) erg per second). We have analyzed overlapping observations of this system with the NuSTAR and the Swift X-ray observatories in 2012 September. We find the 0.5-30 keV spectra to be well fitted by either an optically thin thermal plasma model with three temperatures of 0.75(+0.18 / â0.45), 2.29(+0.96 / â0.82), and 9.33 (+6.07 / â2.18) keV, or an optically thin thermal plasma model with two temperatures of 1.00 (+0.34 / â0.23) and 4.64 (+1.58 / â0.84) keV plus a power-law component with photon index of 2.50 (+0.17 / â0.23). The pulse profile in the 3-20 keV band is broad and approximately sinusoidal, with a pulsed fraction of 16.6% +/- 2.3%. We do not find any evidence for a previously reported sharp feature in the pulse profile.|||||||||||| |
| File Size | 186786 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140017438 |
| Archival Resource Key | ark:/13960/t8tb64146 |
| Language | English |
| Publisher Date | 2014-01-17 |
| Access Restriction | Open |
| Subject Keyword | Cataclysmic Variables Accretion Disks Accretion White Dwarf Stars Radii Luminosity Emission Photons Rotation Stellar Models X Ray Telescopes Swift Observatory Stellar Mass Accretion X Rays Thermal Emission Energy Bands Spectrum Analysis Modulation Thermal Plasmas Magnetic Stars X Ray Spectra X Ray Astronomy Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
