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EPIC211089792 b:年轻的视双星中的一颗对齐膨胀的热木星

EPIC211089792 b: an aligned and inflated hot jupiter in a young visual binary

A. Santerne, G. Hébrard, J. Lillo-Box, D. J. Armstrong, S. C. C. Barros, O. Demangeon, D. Barrado, A. Debackere, M. Deleuil, E. Delgado Mena, M. Montalto, D. Po… 展开作者

A. Santerne, G. Hébrard, J. Lillo-Box, D. J. Armstrong, S. C. C. Barros, O. Demangeon, D. Barrado, A. Debackere, M. Deleuil, E. Delgado Mena, M. Montalto, D. Pollacco, H. P. Osborn, S. G. Sousa, L. Abe, V. Adibekyan, J. -M. Almenara, P. André, G. Arlic, G. Barthe, P. Bendjoya, R. Behrend, I. Boisse, F. Bouchy, H. Boussier, M. Bretton, D. J. A. Brown, B. Carry, A. Cailleau, E. Conseil, B. Courcol, B. Dauchet, J. -C. Dalouzy, M. Deldem, P. Dubreuil, J. -M. Fehrenbach, S. Ferratfiat, R. Girelli, J. Gregorio, S. Jaecques, F. Kugel, J. Kirk, O. Labrevoir, J. -C. Lachurié, K. W. F. Lam, P. Le Guen, P. Martinez, L. Maurin, J. McCormac, J-B. Pioppa, U. Quadri, A. Rajpurohit, J. Rey, J. -P. Rivet, R. Roy, N. C. Santos, F. Signoret, L. Strabla, O. Suarez, D. Toublanc, M. Tsantaki, P. A. Wilson, M. Bachschmidt, F. Colas, O. Gerteis, P. Louis, J. -C. Mario, C. Marlot, J. Montier, V. Perroud, V. Pic, D. Romeuf, S. Ubaud, D. Verilhac

摘要:

在本文中,我们报告发现了一个新的热木星,EPIC 211089792 b,首先由超级WASP天文台探测到,然后由K2太空任务在其活动4。该行星的周期为3.25 d,质量为0.73 +/- 0.04 Mjup,半径为1.19 +/- 0.02 Rjup。主星是一颗相对明亮(V=12.5)的G7矮星,附近有一颗K5 V伴星。根据恒星自转和锂的丰度,我们发现该系统可能年轻约4.5亿年。罗斯特-麦克劳克林效应的观测表明,行星是相对于恒星的自转而排列的。考虑到深凌(20 mmag)、恒星的星等和附近恒星伴星的存在,这颗行星是空间和地面传输光谱学的良好目标,特别是在近红外线,这两颗恒星都相对明亮。

英文摘要:

In the present paper we report the discovery of a new hot Jupiter, EPIC211089792 b, first detected by the Super-WASP observatory and then by the K2 space mission during its campaign 4. The planet has a period of 3.25d, a mass of 0.73 +/- 0.04 Mjup, and a radius of 1.19 +/- 0.02 Rjup. The host star is a relatively bright (V=12.5) G7 dwarf with a nearby K5V companion. Based on stellar rotation and the abundance of Lithium, we find that the system might be as young as about 450 Myr. The observation of the Rossiter-McLaughlin effect shows the planet is aligned with respect to the stellar spin. Given the deep transit (20mmag), the magnitude of the star and the presence of a nearby stellar companion, the planet is a good target for both space- and ground-based transmission spectroscopy, in particular in the near-infrared where the both stars are relatively bright.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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