Представлены результаты фотометрических и спектроскопических исследований новой затменной катаклизмической переменной звезды HBHA 4705-03, орбитальный период которой составляет сут. В спектре системы видны эмиссионные линии водорода и гелия. Доплеровские карты, построенные по водородным линиям и линии HeII 4686, показывают, что основным источником излучения в этих линиях являются области вблизи внутренней точки Лагранжа, в то время как карты, построенные по линиям HeI, говорят о наличии аккреционного диска вокруг первичного компонента. Массы компонентов ( и ) и угол наклона системы ( ) определены по наблюдаемым данным с помощью известных соотношений для тесных двойных и катаклизмических переменных звезд.
We present the final installment of an intensive 13 year study of variations of the optical continuum and broad Hβ emission line in the Seyfert 1 galaxy NGC 5548. The database consists of 1530 optical continuum measurements and 1248 Hβ measurements. The Hβ variations follow the continuum variations closely, with a typical time delay of about 20 days. However, a year-by-year analysis shows that the magnitude of emission-line time delay is correlated with the mean continuum flux. We argue that the data are consistent with the simple model prediction between the size of the broad-line region and the ionizing luminosity, r ∝ L. Moreover, the apparently linear nature of the correlation between the Hβ response time and the nonstellar optical continuum Fopt arises as a consequence of the changing shape of the continuum as it varies, specifically Fopt ∝ F.
O. I. Spiridonova合作论文数3
Olga V. Ezhkova合作论文数3A. E. Vol’vach合作论文数2Л. Н. Вольвач合作论文数2А. Лахтеенмаки合作论文数2х д аллер合作论文数2
Margo F. Aller合作论文数Michigan Institute for Research in Astrophysics, College of Literature, Science, and the Arts, University of Michigan-Ann Arbor2
Merja Tornikoski合作论文数Metsähovi Radio Observatory, Aalto University2V. S. Bychkova合作论文数2M. G. Larionov合作论文数2Nikolay S Kardashev合作论文数2O. Ezhkova合作论文数1A. Porras合作论文数1С. С. Мельников合作论文数1Yf Malkov合作论文数1Ni Merkulova合作论文数1S. Tokarz合作论文数1A. N. Burenkov合作论文数1Am Gilbert合作论文数1P. Romano合作论文数1Perry Berlind合作论文数1M. Dietrich合作论文数1N. G. Bochkarev合作论文数1
Ryan Chornock合作论文数Department of Astronomy, University of California, Berkeley1
Jun Tao (陶均)合作论文数School of Tropical Agriculture and Forestry, Hainan University1
Weidong Li合作论文数Department of Geography, College of Liberal Arts and Sciences, University of Connecticut;Center for Environmental Sciences and Engineering, University of Connecticut1V. T. Doroshenko合作论文数1
Belinda Wilkes合作论文数Division of High Energy Astrophysics, Harvard-Smithsonian Center for Astrophysics;School of Physics, The University of Bristol1Douglas C. Leonard合作论文数Department of Astronomy;University of California;Department of Astronomy, University of California , Berkeley1Alla I. Shapovalova合作论文数1
John Huchra合作论文数Harvard University;Harvard-Smithsonian Center for Astrophysics1R. M. Wagner合作论文数1Thomas Matheson合作论文数Department of Astronomy;University of California;Department of Astronomy, University of California , Berkeley1
Luis Carrasco合作论文数1
Vahram Chavushyan合作论文数Departamento de Astrofísica, Instituto Nacional de Astrofísica Óptica y Electrónica1
Alexei V. Filippenko合作论文数Department of Astronomy, University of California, Berkeley1J. R. Valdes合作论文数1N. Borisov合作论文数1N. V. Borisov合作论文数1
S. G. Sergeev合作论文数1V. V. Shimanskii合作论文数1
Maryam Modjaz合作论文数UC Berkeley, University of California1
Bikmaev Ilfan Fyaritovich合作论文数Department of Astronomy and Cosmic Geodesy, Institute of Physics, Kazan Federal University1Almaz I. Galeev合作论文数1K. Bischoff合作论文数1Christopher A. Onken合作论文数1R. Bertram合作论文数1Valery F. Suleimanov合作论文数Institute for Astronomy and Astrophysics, Faculty of Science, University of Tuebingen1
