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| 題名: | Investigation of a transiting planet candidate in Trumpler 37: An astro-physical false positive eclipsing spectroscopic binary star |
| 作者: | 陳文屏;Errmann, R.;Torres, G.;Schmidt, T.O.B.;Seeliger, M.;Howard, A.W.;Maciejewski, G.;Neuhäuser, R.;Meibom, S.;Kellerer, A.;Dimitrov, D.P.;Dincel, B.;Marka, C.;Mugrauer, M.;Ginski, Ch;Adam, Ch;Raetz, St;Schmidt, J.G.;Hohle, M.M.;Berndt, A.;Kitze, M.;Trepl, L.;Moualla, M.;Eisenbeiß, T.;Fiedler, S.;Dathe, A.;Graefe, Ch;Pawellek, N.;Schreyer, K.;Kjurkchieva, D.P.;Radeva, V.S.;Yotov, V.;Chen, W.P.;Hu, S.C.-L.;Wu, Z.-Y.;Zhou, X.;Pribulla, T.;Budaj, J.;Vaňko, M.;Kundra, E.;Hambälek, Ľ.;Krushevska, V.;Bukowiecki, Ł.;Nowak, G.;Marschall, L.;Terada, H.;Tomono, D.;Fernandez, M.;Sota, A.;Takahashi, H.;Oasa, Y.;Briceño, C.;Chini, R.;Broeg, C.H. |
| 貢獻者: | 理學院天文研究所 |
| 關鍵詞: | Astrophysics;binaries: eclipsing;binaries: spectroscopic;Double stars;Extrasolar planets;open clusters and associations: individual (Trumpler 37);planetary systems;Spectrum analysis;stars: fundamental parameters;stars: late-type |
| 日期: | 2014-01-01 |
| 上傳時間: | 2026-04-21 14:23:23 (UTC+8) |
| 出版者: | Wiley-VCH Verlag;Berlin: WILEY-VCH Verlag |
| 摘要: | 摘要： We report our investigation of the first transiting planet candidate from the YETI project in the young (∼4 Myr old) open cluster Trumpler 37. The transit‐like signal detected in the lightcurve of F8V star 2M21385603+5711345 repeats every 1.364894 + 0.000015 days, and has a depth of 54.5 + 0.8 mmag in R. Membership in the cluster is supported by its mean radial velocity and location in the color‐magnitude diagram, while the Li diagnostic and proper motion are inconclusive in this regard. Follow‐up photometric monitoring and adaptive optics imaging allow us to rule out many possible blend scenarios, but our radial‐velocity measurements show it to be an eclipsing single‐lined spectroscopic binary with a late‐type (mid‐M) stellar companion, rather than one of planetary nature. The estimated mass of the companion is 0.15–0.44 M⊙. The search for planets around very young stars such as those targeted by the YETI survey remains of critical importance to understand the early stages of planet formation and evolution. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
其他題名： Astron. Nachr
出版者： Berlin: WILEY-VCH Verlag
出版日期： 2014-05
出處： Astronomische Nachrichten, 2014-05, Vol.335 (4), p.345-356
資源來源： Wiley Online Library - AutoHoldings Journals
版權： Copyright © 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
版權： Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
識別號： ISSN: 0004-6337
識別號： ISSN: 1521-3994
識別號： EISSN: 1521-3994
識別號： DOI: 10.1002/asna.201412047 |
| 顯示於類別: | [天文研究所] 期刊論文
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