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arXiv 0907.2969astro-ph.SR
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通过光度监测提高我们对北方造父变星的认识

Enhancing Our Knowledge of Northern Cepheids through Photometric Monitoring

David G. Turner, Daniel J. Majaess, David J. Lane, L. Szabados, V. V. Kovtyukh, I. A. Usenko, Leonid N. Berdnikov

摘要:

正在通过哈利法克斯附近的阿比岭自动观测站的CCD观测和圣玛丽大学伯克-加夫尼观测站的光电测光,定期监测北半球一些已知和新发现的造父变星和有关天体。其中包括北极星,它在其不断增长的光振幅中显示出不寻常的波动,以及短周期,双模造父变星HDE 344787,其振幅小于北极星,以及其他需要额外观测的经典造父变星。观测结果正被用来确定造父变星的基本参数,用于造父变星周期光度关系的银河系校准以及银河系结构的研究。

英文摘要:

A selection of known and newly-discovered northern hemisphere Cepheids and related objects are being monitored regularly through CCD observations at the automated Abbey Ridge Observatory, near Halifax, and photoelectric photometry from the Saint Mary's University Burke-Gaffney Observatory. Included is Polaris, which is displaying unusual fluctuations in its growing light amplitude, and a short-period, double-mode Cepheid, HDE 344787, with an amplitude smaller than that of Polaris, along with a selection of other classical Cepheids in need of additional observations. The observations are being used to establish basic parameters for the Cepheids, for application to the Galactic calibration of the Cepheid period-luminosity relation as well as studies of Galactic structure.

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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