X-ray spectra and light curves of cooling novae and a nova like
| Autor: | Polina Zemko, Sergey Yu. Shugarov, Bangzheng Sun, Marina Orio, A. Dobrotka, G. J. M. Luna |
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| Rok vydání: | 2020 |
| Předmět: |
010504 meteorology & atmospheric sciences
Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences Flux Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics 01 natural sciences Luminosity Intermediate polar 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics 010303 astronomy & astrophysics Dwarf nova Astrophysics::Galaxy Astrophysics Solar and Stellar Astrophysics (astro-ph.SR) 0105 earth and related environmental sciences High Energy Astrophysical Phenomena (astro-ph.HE) Physics Astronomy and Astrophysics Light curve Orbital period Amplitude Astrophysics - Solar and Stellar Astrophysics Space and Planetary Science Magnitude (astronomy) Astrophysics - High Energy Astrophysical Phenomena |
| Zdroj: | Monthly Notices of the Royal Astronomical Society. 499:3006-3018 |
| ISSN: | 1365-2966 0035-8711 |
| Popis: | We present X-ray observations of novae V2491 Cyg and KT Eri about 9 years post-outburst, of the dwarf nova and post-nova candidate EY Cyg, and of a VY Scl variable. The first three objects were observed with XMM-Newton, KT Eri also with the Chandra ACIS-S camera, V794 Aql with the Chandra ACIS-S camera and High Energy Transmission Gratings. The two recent novae, similar in outburst amplitude and light curve, appear very different at quiescence. Assuming half of the gravitational energy is irradiated in X-rays, V2491 Cyg is accreting at $\dot{m}=1.4\times10^{-9}-10^{-8}M_\odot/yr$, while for KT Eri, $\dot{m} 14 pages, 12 figures, 6 tables |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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