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arXiv 1206.0750astro-ph.SR
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太阳类星体的精确有效温度

Precise Effective Temperatures of Solar Analog Stars

D. Cornejo, I. Ramirez, P. S. Barklem

摘要:

我们进行了一项研究,62个太阳模拟星计算其有效温度(Teff)的巴耳末线翼拟合程序,并将它们与Teff值使用其他常用的方法。我们使用观察到的H-α谱线和理论LTE模型光谱计算的最佳原子数据和最新的量子理论的细网格。我们的光谱数据是非常高的质量,并已仔细规范化,以恢复正确的形状的H-α线的轮廓。我们得到的Teff值的内部误差约为25 K。我们的结果与其他方法的比较表明,相当好的协议。然后,结合从四个独立的技术获得的Teff值,我们能够确定最终的Teff值,误差约为10 K。

英文摘要:

We perform a study of 62 solar analog stars to compute their effective temperatures (Teff) using the Balmer line wing fitting procedure and compare them with Teff values obtained using other commonly employed methods. We use observed H-alpha spectral lines and a fine grid of theoretical LTE model spectra calculated with the best available atomic data and most recent quantum theory. Our spectroscopic data are of very high quality and have been carefully normalized to recover the proper shape of the H-alpha line profile. We obtain Teff values with internal errors of about 25 K. Comparison of our results with those from other methods shows reasonably good agreement. Then, combining Teff values obtained from four independent techniques, we are able to determine final Teff values with errors of about 10 K.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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