X-ray spectroscopy of the classical nova V458 Vulpeculae with Suzaku. Tsujimoto, M., Takei, D., Drake, J., J., Ness, J., U., & Kitamoto, S. Publications of the Astronomical Society of Japan, 61(SUPPL. 1):S69-S76, Oxford University Press, 1, 2009.
X-ray spectroscopy of the classical nova V458 Vulpeculae with Suzaku [link]Website  abstract   bibtex   
We conducted a target of opportunity X-ray observation of the classical nova V458 Vulpeculae 88 d after the explosion using the Suzaku satellite. With a ̃ 20 ks exposure, the X-ray Imaging Spectrometer detected X-ray emission significantly harder than typical super-soft source emission. The X-ray spectrum shows Kα lines from N, Ne, Mg, Si, and S, and L-series emission from Fe in highly ionized states. The spectrum can be described by a single-temperature (̃0.64keV) thin thermal plasma model in collisional equilibrium with a hydrogen-equivalent extinction column density of ̃3 × 10 21cm-2, a flux of ̃ 10-12ergs -1cm-2, and a luminosity of ̃6 × 10 34ergs-1 in the 0.3-3.0keV band at an assumed distance of 13 kpc. We found a hint of an enhancement of N and deficiencies of O and Fe relative to other metals. The observed X-ray properties can be interpreted as the emission arising from shocks of ejecta from an ONe-type nova. © 2009 Astronomical Society of Japan.
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 title = {X-ray spectroscopy of the classical nova V458 Vulpeculae with Suzaku},
 type = {article},
 year = {2009},
 identifiers = {[object Object]},
 keywords = {Individual (Nova Vulpeculae 2007 number 1, V458 Vu,Novae,Stars,X-rays},
 pages = {S69-S76},
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 websites = {https://academic.oup.com/pasj/article-lookup/doi/10.1093/pasj/61.sp1.S69,https://academic.oup.com/pasj/article-lookup/doi/10.1093/pasj/61.4.L13},
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 abstract = {We conducted a target of opportunity X-ray observation of the classical nova V458 Vulpeculae 88 d after the explosion using the Suzaku satellite. With a ̃ 20 ks exposure, the X-ray Imaging Spectrometer detected X-ray emission significantly harder than typical super-soft source emission. The X-ray spectrum shows Kα lines from N, Ne, Mg, Si, and S, and L-series emission from Fe in highly ionized states. The spectrum can be described by a single-temperature (̃0.64keV) thin thermal plasma model in collisional equilibrium with a hydrogen-equivalent extinction column density of ̃3 × 10 21cm-2, a flux of ̃ 10-12ergs -1cm-2, and a luminosity of ̃6 × 10 34ergs-1 in the 0.3-3.0keV band at an assumed distance of 13 kpc. We found a hint of an enhancement of N and deficiencies of O and Fe relative to other metals. The observed X-ray properties can be interpreted as the emission arising from shocks of ejecta from an ONe-type nova. © 2009 Astronomical Society of Japan.},
 bibtype = {article},
 author = {Tsujimoto, Masahiro and Takei, Dai and Drake, Jeremy J. and Ness, Jan Uwe and Kitamoto, Shunji},
 journal = {Publications of the Astronomical Society of Japan},
 number = {SUPPL. 1}
}

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