Heiles星光偏振源表的距离更正          下载免费PDF全文

蒙美娘  孙晓辉 《天文学报》2021,62(1):3-36

星光偏振是研究星际介质磁场的有力工具之一.Heiles源表收集了9286颗恒星的偏振信息,是目前最大的光学波段星光偏振源表,被广泛使用.但该表中恒星的距离参数是以前的测光距离,很不确定.把Heiles源表和Gaia第2次数据释放(DR2)源表进行交叉证认,以位置和星等作为判据,匹配了7613颗恒星,并获得了这些恒星的三角视差距离和误差,超过90%的恒星距离相对误差小于20%.基于新的距离,展示了星光偏振在银河系内的分布并讨论了可能的应用.  相似文献   

Catalogue of non-Abell clusters of galaxies with published photometric data     

F. W. Baier  R. Ziener 《Astronomische Nachrichten》1990,311(1):5-30

This catalogue is a compilation of references of publications with photometric data in and around non-Abell clusters of galaxies.  相似文献   

Astrophysical supplements to the ASCC‐2.5. II. Membership probabilities in 520 Galactic open cluster sky areas     

N. V. Kharchenko  A. E. Piskunov  S. Rser  E. Schilbach  R.‐D. Scholz 《Astronomische Nachrichten》2004,325(9):740-748

We present a catalogue (CSOCA) of stars residing in 520 Galactic open cluster sky areas which is the result of the kinematic (proper motion) and photometric member selection of stars listed in the homogeneous All‐sky Compiled Catalogue of 2.5Million Stars (ASCC‐2.5).We describe the structure and contents of the catalogue, the selection procedure applied, and the proper motion and photometric membership constraints adopted. In every cluster area the CSOCA contains the complete list of the ASCC‐2.5 stars regardless of their membership probability. For every star the CSOCA includes accurate J2000 equatorial coordinates, proper motions in the Hipparcos system, BV photometric data in the Johnson system, proper motion and photometric membership probabilities, as well as angular distances from the cluster centers for about 166 000 ASCC‐2.5 stars. If available, trigonometric parallaxes, spectral types, multiplicity and variability flags from the ASCC‐2.5, and radial velocities with their errors from the Catalogue of Radial Velocities of Galactic Stars with high precision Astrometric Data (CRVAD) are also given. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)  相似文献   

Construction of a diameter-limited sample of galaxies in the northern sky. The catalogue     

S. Bardelli  E. Zucca 《Astronomische Nachrichten》1995,316(1):39-65

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