TY - JOUR
T1 - A Self-consistent Model for a Full Cycle of Recurrent Novae - Wind Mass-loss Rate and X-Ray Luminosity
AU - Kato, Mariko
AU - Saio, Hideyuki
AU - Hachisu, Izumi
N1 - Publisher Copyright:
© 2017. The American Astronomical Society. All rights reserved.
PY - 2017/4/1
Y1 - 2017/4/1
N2 - An unexpectedly slow evolution in the pre-optical-maximum phase was suggested in the very short recurrence period of nova M31N 2008-12a. To obtain reasonable nova light curves we have improved our calculation method by consistently combining optically thick wind solutions of hydrogen-rich envelopes with white dwarf (WD) structures calculated by a Henyey-type evolution code. The wind mass-loss rate is properly determined with high accuracy. We have calculated light curve models for 1.2 M o and 1.38 M o WDs with mass accretion rates corresponding to recurrence periods of 10 yr and 1 yr, respectively. The outburst lasts 590/29 days, in which the pre-optical-maximum phase is 82/16 days, for 1.2/1.38 M o, respectively. Optically thick winds start at the end of the X-ray flash and cease at the beginning of the supersoft X-ray phase. We also present supersoft X-ray light curves including a prompt X-ray flash and later supersoft X-ray phase.
AB - An unexpectedly slow evolution in the pre-optical-maximum phase was suggested in the very short recurrence period of nova M31N 2008-12a. To obtain reasonable nova light curves we have improved our calculation method by consistently combining optically thick wind solutions of hydrogen-rich envelopes with white dwarf (WD) structures calculated by a Henyey-type evolution code. The wind mass-loss rate is properly determined with high accuracy. We have calculated light curve models for 1.2 M o and 1.38 M o WDs with mass accretion rates corresponding to recurrence periods of 10 yr and 1 yr, respectively. The outburst lasts 590/29 days, in which the pre-optical-maximum phase is 82/16 days, for 1.2/1.38 M o, respectively. Optically thick winds start at the end of the X-ray flash and cease at the beginning of the supersoft X-ray phase. We also present supersoft X-ray light curves including a prompt X-ray flash and later supersoft X-ray phase.
KW - X-rays: binaries
KW - novae, cataclysmic variables
KW - stars: individual (M31N 2008-12a)
KW - white dwarfs
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U2 - 10.3847/1538-4357/838/2/153
DO - 10.3847/1538-4357/838/2/153
M3 - Article
AN - SCOPUS:85017314508
SN - 0004-637X
VL - 838
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 153
ER -