The stellar content of the young open cluster trumpler 37

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题名:	The stellar content of the young open cluster trumpler 37
作者:	陳文屏;Errmann, R.;Neuhäuser, R.;Marschall, L.;Torres, G.;Mugrauer, M.;Chen, W.P.;Hu, S.C.-L.;Briceno, C.;Chini, R.;Bukowiecki, Ł.;Dimitrov, D.P.;Kjurkchieva, D.;Jensen, E.L.N.;Cohen, D.H.;Wu, Z.-Y.;Pribulla, T.;Vaňko, M.;Krushevska, V.;Budaj, J.;Oasa, Y.;Pandey, A.K.;Fernandez, M.;Kellerer, A.;Marka, C.
贡献者:	理學院天文研究所
关键词:	Astronomy and Astrophysics;Astrophysics;Magnetic fields;open clusters and associations: individual (Trumpler 37);Space and Planetary Science;Spectrum analysis;Stars & galaxies
日期:	2013-08-01
上传时间:	2026-04-21 14:21:37 (UTC+8)
出版者:	Wiley-VCH Verlag;Berlin: WILEY-VCH Verlag
摘要:	摘要： AbstractWith an apparent cluster diameter of 1.5° and an age of 4 Myr, Trumpler 37 is an ideal target for photometric monitoring of young stars as well as for the search of planetary transits, eclipsing binaries and other sources of variability. The YETI consortium has monitored Trumpler 37 throughout 2010 and 2011 to obtain a comprehensive view of variable phenomena in this region. In this first paper we present the cluster properties and membership determination as derived from an extensive investigation of the literature. We also compared the coordinate list to some YETI images. For 1872 stars we found literature data. Among them 774 have high probability of being member and 125 a medium probability. Based on infrared data we re‐calculate a cluster extinction of 0.9–1.2 mag. We can confirm the age and distance to be 3–5 Myr and870 pc. Stellar masses are determined from theoretical models and the mass function is fitted with a power‐law index of α = 1.90 (0.1–0.4 M⊙) and α = 1.12 (1–10 M⊙). (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) 其他題名： Astron. Nachr 出版者： Berlin: WILEY-VCH Verlag 出版日期： 2013-08 出處： Astronomische Nachrichten, 2013-08, Vol.334 (7), p.673-681 資源來源： Wiley Online Library Journals 版權： Copyright © 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim 版權： Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 識別號： ISSN: 0004-6337 識別號： EISSN: 1521-3994 識別號： DOI: 10.1002/asna.201311890
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