| KATO, T., T. OHSHIMA, D. DENISENKO, P.A. DUBOVSKY, I. KUDZEJ, W. STEIN, E. DE MIGUEL, A. HENDEN, I. MILLER, K. ANTONYUK, O. ANTONYUK, N. PIT, A. SOSNOVSKIJ, A. BAKLANOV, J. BABINA, E.P. PAVLENKO, K. MATSUMOTO, D. FUKUSHIMA, M. TAKENAKA, M. KAWABATA, D. SAKAI, K. MAEDA, R. MATSUDA, K. MATSUMOTO, C. LITTLEFIELD, A. OKSANEN, H. ITOH, G. MASI, F. NOCENTINI, P. SCHMEER, R.D. PICKARD, S. KIYOTA, S. DVORAK, J. ULOWETZ, Y. MAEDA, R. MICHEL, S.Y. SHUGAROV, D. CHOCHOL a Rudolf NOVÁK. Superoutburst of SDSS J090221.35+381941.9: First measurement of mass ratio in an AM CVn-type object using growing superhumps. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN. OXFORD: OXFORD UNIV PRESS, 2014, roč. 66, č. 5, s. 1-7. ISSN 0004-6264. Dostupné z: https://dx.doi.org/10.1093/pasj/psu077. |
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@article{1230051,
author = {Kato, T. and Ohshima, T. and Denisenko, D. and Dubovsky, P.A. and Kudzej, I. and Stein, W. and de Miguel, E. and Henden, A. and Miller, I. and Antonyuk, K. and Antonyuk, O. and Pit, N. and Sosnovskij, A. and Baklanov, A. and Babina, J. and Pavlenko, E.P. and Matsumoto, K. and Fukushima, D. and Takenaka, M. and Kawabata, M. and Sakai, D. and Maeda, K. and Matsuda, R. and Matsumoto, K. and Littlefield, C. and Oksanen, A. and Itoh, H. and Masi, G. and Nocentini, F. and Schmeer, P. and Pickard, R.D. and Kiyota, S. and Dvorak, S. and Ulowetz, J. and Maeda, Y. and Michel, R. and Shugarov, S.Y. and Chochol, D. and Novák, Rudolf},
article_location = {OXFORD},
article_number = {5},
doi = {http://dx.doi.org/10.1093/pasj/psu077},
keywords = {accretion accretion disks; novae cataclysmic variables; stars: dwarf novae; stars: individual},
language = {eng},
issn = {0004-6264},
journal = {PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN},
title = {Superoutburst of SDSS J090221.35+381941.9: First measurement of mass ratio in an AM CVn-type object using growing superhumps},
volume = {66},
year = {2014}
}
TY - JOUR
ID - 1230051
AU - Kato, T. - Ohshima, T. - Denisenko, D. - Dubovsky, P.A. - Kudzej, I. - Stein, W. - de Miguel, E. - Henden, A. - Miller, I. - Antonyuk, K. - Antonyuk, O. - Pit, N. - Sosnovskij, A. - Baklanov, A. - Babina, J. - Pavlenko, E.P. - Matsumoto, K. - Fukushima, D. - Takenaka, M. - Kawabata, M. - Sakai, D. - Maeda, K. - Matsuda, R. - Matsumoto, K. - Littlefield, C. - Oksanen, A. - Itoh, H. - Masi, G. - Nocentini, F. - Schmeer, P. - Pickard, R.D. - Kiyota, S. - Dvorak, S. - Ulowetz, J. - Maeda, Y. - Michel, R. - Shugarov, S.Y. - Chochol, D. - Novák, Rudolf
PY - 2014
TI - Superoutburst of SDSS J090221.35+381941.9: First measurement of mass ratio in an AM CVn-type object using growing superhumps
JF - PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
VL - 66
IS - 5
SP - 1-7
EP - 1-7
PB - OXFORD UNIV PRESS
SN - 00046264
KW - accretion accretion disks
KW - novae cataclysmic variables
KW - stars: dwarf novae
KW - stars: individual
N2 - We report on a superoutburst of the AM CVn-type object SDSS J090221.35+381941.9 [J0902; orbital period 0.03355(6) d] in 2014 March-April. The entire superoutburst consisted of a precursor outburst and the main superoutburst, followed by a short rebrightening. During the rising phase of the main superoutburst, we detected growing superhumps (stage A superhumps) with a period of 0.03409(1) d. During the plateau phase of the superoutburst, superhumps with a shorter period (stage B superhumps) were observed. Using the orbital period and the period of stage A superhumps, we were able to measure the dynamical precession rate of the accretion disk at the 3:1 resonance, and obtained a mass ratio (q) of 0.041(7). This is the first successful measurement of the mass ratio in an AM CVn-type object accomplished by the recently developed stage A superhump method. The value is generally in agreement with that based on the theoretical evolutionary model. The orbital period of J0902 is the longest among those of the outbursting AM CVn-type objects, and a period on the borderline between the outbursting system and the system with a stable cool disk appears to be longer than one supposed.
ER -
KATO, T., T. OHSHIMA, D. DENISENKO, P.A. DUBOVSKY, I. KUDZEJ, W. STEIN, E. DE MIGUEL, A. HENDEN, I. MILLER, K. ANTONYUK, O. ANTONYUK, N. PIT, A. SOSNOVSKIJ, A. BAKLANOV, J. BABINA, E.P. PAVLENKO, K. MATSUMOTO, D. FUKUSHIMA, M. TAKENAKA, M. KAWABATA, D. SAKAI, K. MAEDA, R. MATSUDA, K. MATSUMOTO, C. LITTLEFIELD, A. OKSANEN, H. ITOH, G. MASI, F. NOCENTINI, P. SCHMEER, R.D. PICKARD, S. KIYOTA, S. DVORAK, J. ULOWETZ, Y. MAEDA, R. MICHEL, S.Y. SHUGAROV, D. CHOCHOL a Rudolf NOVÁK. Superoutburst of SDSS J090221.35+381941.9: First measurement of mass ratio in an AM CVn-type object using growing superhumps. \textit{PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN}. OXFORD: OXFORD UNIV PRESS, 2014, roč.~66, č.~5, s.~1-7. ISSN~0004-6264. Dostupné z: https://dx.doi.org/10.1093/pasj/psu077.
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