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Quantitative analysis of the V838 Monocerotis spectrum
Репозиторій DSpace/Manakin
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Quantitative analysis of the V838 Monocerotis spectrum
Тема:
MS3: Physics of Stars and Galaxies
Посилання:
Quantitative analysis of the V838 Monocerotis spectrum / B. Kaminsky, Ya.V. Pavlenko // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 273-275. — Бібліогр.: 10 назв. — англ.
Підтримка:
We thank Drs. Ulisse Munari, Lisa Crause for providing spectra and for discussions of our results. This research was partially supported by a PPARC visitors grants from PPARC and the Royal Society. Y.P.’s studies are partially supported by a Small Research Grant from the American Astronomical Society.
Дата:
2005
Переглядів:
898
Завантажень:
468
Анотація:
We present the determination of the effective temperature, iron abundance, and microturbulent velocities for the pseudophotosphere of V838 Mon observed on February 25, March 2 and 26, 2002. Physical parameters of the line forming region were obtained in the framework of a self-consistent approach using fits of synthetic spectra to observed spectra in the wavelength range 5500–6700 Å. We obtained the values of Teff 5330±150 K, 5540±150 K, and 4960±150 K for February 25, March 2, and March 26, 2002, respectively. The iron abundance logN(Fe) = −4.7 does not appear to change in the atmosphere of V838 Mon from February 25 to March 26, 2002.
