EXPORT: Near-IR observations of Vega-type and pre-main sequence stars

EXPORT: Near-IR observations of Vega-type and pre-main sequence stars
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导出:织女星型和前主序星的近红外观测

DOI:
10.1051/0004-6361:20000029
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发表时间:
2001
影响因子:
6.5
通讯作者:
P. Wesselius
P. Wesselius
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
C. Eiroa;F. Garzón;A. Alberdi;D. D. Winter;R. Ferlet;C. Grady;A. Cameron;J. Davies;H. Deeg;A. Harris;K. Horne;B. Merín;L. F. Miranda;B. Montesinos;A. Mora;R. Oudmaijer;J. Palacios;A. Penny;A. Quirrenbach;H. Rauer;J. Schneider;E. Solano;Y. Tsapras;P. Wesselius

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本文给出了58颗主序星(主要是织女星型)和前主序星的近红外jh - K光度数据。这些数据是在1998年5月至1999年1月期间进行的四次观测中获得的,是与同时进行的光谱学和光偏振法协调工作的一部分。在大多数情况下,MS恒星的近红外颜色与光球的颜色相对应,尽管对少数物体存在明显的变红,并且这些恒星在观测误差范围内没有亮度变化。另一方面,PMS恒星显示出与先前数据一致的近红外过度和变异性。
We present near-IR J H K photometric data of sample of 58 main-sequence, mainly Vega-type, and pre-main sequence stars. The data were taken during four observation runs in the period May 1998 to January 1999 and form part of a coordinated effort with simultaneous optical spectroscopy and photo-polarimetry. The near-IR colors of the MS stars correspond in most cases tp photospheric colors, although noticealbe reddening is present towards a few objects, and these stars show no brightness variability within the observational errors. On the other hand, the PMS stars show near-IR excesses and variability consistent with previous data.
A.Dogariu:“分形聚合介质反向散射光的增强因子”光学评论。
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