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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50692


    Title: A multi-site campaign to detect the transit of the second planet in HAT-P-13 (Research Note)
    Authors: Szabo,GM;Kiss,LL;Benko,JM;Mezo,G;Nuspl,J;Regaly,Z;Sarneczky,K;Simon,AE;Leto,G;Sanchez,RZ;Ngeow,CC;Kovari,Z;Szabo,R
    Contributors: 天文研究所
    Keywords: KEPLER FIELD;ORBIT;PHOTOMETRY;COMPANION;SYSTEMS;STAR
    Date: 2010
    Issue Date: 2012-03-27 18:08:03 (UTC+8)
    Publisher: 國立中央大學
    Abstract: Aims. A possible transit of HAT-P-13c had been predicted to occur on 2010 April 28. Here we report on the results of our multi-site campaign organised to detect the event. Methods. CCD photometric observations were carried out at five observatories in five countries. We reached 30% time coverage in a 5-day interval centered on the suspected transit of HAT-P-13c. Two transits of HAT-P-13b were also observed. Results. No transit of HAT-P-13c was detected during the campaign. By a numerical experiment with 10(5) model systems, we conclude that HAT-P-13c is not a transiting exoplanet with a significance level from 65% to 72%, depending on the planet parameters and the prior assumptions. We present two times of transit of HAT-P-13b ocurring at BJD 2 455 141.5522 +/- 0.0010 and BJD 2 455 249.4508 +/- 0.0020. The TTV of HAT-P-13b is consistent with zero within 0.001 days. The refined orbital period of HAT-P-13b is 2.916293 +/- 0.000010 days.
    Relation: ASTRONOMY & ASTROPHYSICS
    Appears in Collections:[天文研究所] 期刊論文

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