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arXiv 1409.2277astro-ph.SR
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来自APOKASC的早期结果

Early Results from APOKASC

Courtney Epstein

摘要:

天文地震学和光谱学对恒星的基本性质和化学性质提供了互补的限制。我描述了APOKASC的第一个结果,这是开普勒星震科学联盟(KASC)和SDSS-III APOGEE调查之间的合作。其中包括:(1)利用APOKASC样品中确定的晕和厚盘星,首次测试贫金属区的星震标度关系;(2)利用星震对表面重力的精确测量,校准光谱参数。我还强调了未来的研究途径,这些途径是由成千上万个特征鲜明的红巨星组成的独特样本所实现的。

英文摘要:

Asteroseismology and spectroscopy provide complementary constraints on the fundamental and chemical properties of stars. I describe the first results from APOKASC, a collaboration between the Kepler asteroseismic science consortium (KASC) and the SDSS-III APOGEE survey. These include (1) the first test of asteroseismic scaling relationships in the metal-poor regime using halo and thick disk stars identified in the APOKASC sample; and (2) the calibration of spectroscopic parameters using precise asteroseismic measurements of surface gravity. I also highlight future research avenues that are made possible by this unique sample of thousands of well-characterized red giant stars.

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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