【摘要】：大氣消光系數(shù)的測定是天文觀測臺站一項(xiàng)很重要和基礎(chǔ)的工作.介紹了利用新建的2.4 m望遠(yuǎn)鏡在高美古觀測站開展的消光系數(shù)測定等定標(biāo)工作的初步結(jié)果.利用2009年4～5月對Landolt標(biāo)準(zhǔn)星場的2次測光觀測,分別給出了UBVRI 5個(gè)波段的消光系數(shù).此外,對該站點(diǎn)大氣消光的成分情況進(jìn)行了探討.給出的結(jié)果與數(shù)年前高美古觀測站選址時(shí)得到的大氣消光系數(shù)基本一致,并與其它一些知名天文觀測臺站的消光數(shù)據(jù)進(jìn)行了比較.
[Abstract]:The measurement of atmospheric extinction coefficient is an important and basic work for astronomical observation stations. The preliminary results of calibration work such as the determination of extinction coefficient carried out by the newly built 2.4m telescope at the Gomeigu Observatory are introduced in this paper. Based on two photometric observations of Landolt standard star field from April to May 2009, the extinction coefficients of the five bands of UBVRI are given respectively. In addition, the composition of atmospheric extinction at this site is discussed. The results obtained are basically consistent with the atmospheric extinction coefficient obtained from the site selection of the Gomego Observatory a few years ago, and are compared with the extinction data of some other well-known astronomical observation stations.
【作者單位】： 中國科學(xué)院國家天文臺/云南天文臺;中國科學(xué)院研究生院;
【基金】：國家自然科學(xué)基金項(xiàng)目(10533050)資助
【分類號】：P126
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本文編號：2375188