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Population synthesis of DA white dwarfs: constraints on soft X-ray spectra evolutionстатья
- Авторы: Boldin P.A., Suleimanov V.F., Blinnikov S.I., Popov S.B.
- Сборник: American Institute of Physics Conference Series
- Серия: American Institute of Physics Conference Series
- Том: 1273
- Год издания: 2010
- Первая страница: 113
- Последняя страница: 116
- DOI: 10.1063/1.3527784
- Аннотация: Extending the population synthesis method to isolated young cooling white dwarfs we are able to confront our model assumptions with observations made in ROSAT All-Sky Survey [1]. This allows us to check model parameters such as evolution of spectra and separation of heavy elements in DA WD envelopes. It seems like X-ray spectrum temperature of these objects is given by the formula [2] TX-ray = min(Teff,Tmax). We have obtained DA WD's birth rate and upper limit of the X-ray spectrum temperature: DA birth rate = 0.61{\times}10$^{-12}$ pc$^{-3}$yr$^{-1}$, Tmax = 4.1{\times}10$^{4}$ K. These values are in good correspondence with values obtained by [3, 2]. From this fact we also conclude that our population synthesis method is applicable to the population of close-by isolated cooling white dwarfs as well as to the population of the isolated cooling neutron stars.
- Добавил в систему: Блинников Сергей Иванович