Spectrophotometric variability of Mira

Arkharov AA; Hagen-Torn EI; Puzakova TU; Ruban EV

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Spectrophotometric variability of Mira

机译：Mira的分光光度变异性

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Data from the Pulkovo spectrophotometric data base on the absolute quasimonochromatic fluxes from oCet in the 320-1080 nm range are used to determine the physical parameters of this star in different phases of its light curve. The continuum emission layer is found to expand between the phases of the cycle corresponding to the rising and falling branches of the light curve. The average expansion velocity is 32 km/s. By the time the star's brightness has fallen by roughly three magnitudes, its radius has increased by almost a factor of three. Over this same time the temperature of the layer has fallen from 3000 K to 2200 K. For this expansion velocity, the calculated mass rate loss is M ./year.

机译：来自Pulkovo分光光度数据数据库的数据基于来自oCet的320-1080 nm范围内的绝对准单色通量，用于确定该恒星在其光曲线不同阶段的物理参数。发现连续发射层在与光曲线的上升和下降分支相对应的循环的各相之间扩展。平均膨胀速度为32 km / s。到恒星的亮度下降了大约三个数量级时，其半径几乎增加了三倍。在同一时间，层的温度从3000 K下降到2200K。对于该膨胀速度，计算出的质量速率损失为M. /年。

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《Astrophysics》 |2005年第2期|共13页
作者
Arkharov AA; Hagen-Torn EI; Puzakova TU; Ruban EV;
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正文语种 eng
中图分类天体物理学;
关键词
stars : variables : spectra; individual : oCet; VARIABLES; PERIOD;

机译：星：变量：光谱;个人：oCet;VARIABLES;期限;

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专利

1. Spectrophotometric variability of Mira [J] . Arkharov AA, Hagen-Torn EI, Puzakova TU, Astrophysics . 2005,第2期

机译：Mira的分光光度变异性
2. Interferometry on Mira in the Mid-Infrared: Cyclic Variability of the Continuum Diameter and the Effect of Spectral Lines on Apparent Size [J] . J. Weiner1, D. D. S. Hale1, C. H. Townes1 The Astrophysical journal . 2008,第2期

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3. LIMITS ON Ⅰ-BAND MICRO VARIABILITY OF THE GALACTIC BULGE MIRA VARIABLES [J] . P. R. WOZNIAK, K. E. MCGOWAN, W. T. VESTRAND The Astrophysical journal . 2004,第2Pt1期

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4. Long-Term Variability in o Ceti and Other Mira Variables: Signs of Supergranular Convection? [C] . Matthew R. Templeton, Margarita Karovska Los Alamos Series Pulsation Meetings . 2009

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6. Physiological and Proteomic Responses to Drought in Leaves of Amygdalus mira (Koehne) Yü et Lu [O] . Liping Xu, Yanbo Hu, Guangze Jin, 2021

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7. The structure of H2O shells in Mira atmospheres: Correlation with disk brightness distributions and a spectrophotometric signature [O] . Tej, A, Scholz, M 2003

机译：Mira气氛中H2O壳的结构：与光盘亮度分布和分光光度签名的相关性
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Spectrophotometric variability of Mira

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