2024-03-28T14:30:51Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1392492023-01-24T11:17:11Zcom_10261_97com_10261_4col_10261_350
DIGITAL.CSIC
author
Raetz, St.
author
Fernández, Matilde
author
Sota Ballano, Alfredo
author
Neuhäuser, R.
funder
German Research Foundation
funder
Ministerio de Ciencia e Innovación (España)
funder
European Commission
funder
Chinese Academy of Sciences
funder
Slovak Academy of Sciences
2016-10-24T11:18:21Z
2016-10-24T11:18:21Z
2016-05-16
Monthly Notices of the Royal Astronomical Society 460(3): 2834-2852 (2016)
0035-8711
http://hdl.handle.net/10261/139249
10.1093/mnras/stw1159
1365-2966
http://dx.doi.org/10.13039/501100001659http://dx.doi.org/10.13039/501100004837http://dx.doi.org/10.13039/501100000780http://dx.doi.org/10.13039/501100002367http://dx.doi.org/10.13039/100010783
CVSO 30 is a unique young low-mass system, because, for the first time, a close-in transiting and a wide directly imaged planet candidates are found around a common host star. The inner companion, CVSO 30 b, is the first possible young transiting planet orbiting a previously known weak-lined T Tauri star. With five telescopes of the 'Young Exoplanet Transit Initiative' located in Asia, Europe and South America, we monitored CVSO 30 over three years in a total of 144 nights and detected 33 fading events. In two more seasons we carried out follow-up observations with three telescopes. We can confirm that there is a change in the shape of the fading event between different observations and that the fading event even disappears and reappears. A total of 38 fading event light curves were simultaneously modelled. We derived the planetary, stellar and geometrical properties of the system and found them slightly smaller but in agreement with the values from the discovery paper. The period of the fading event was found to be 1.36 s shorter and 100 times more precise than the previous published value. If CVSO 30 b would be a giant planet on a precessing orbit, which we cannot confirm, yet, the precession period may be shorter than previously thought. But if confirmed as a planet it would be the youngest transiting planet ever detected and will provide important constraints on planet formation and migration time-scales.
eng
openAccess
Stars: individual: CVSO 30
Stars: individual: 2MASS J05250755+0134243
Stars: individual: PTFO 8-8695
Planetary systems
Stars: pre-main-sequence
YETI observations of the young transiting planet candidate CVSO 30 b
artículo
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URL
https://digital.csic.es/bitstream/10261/139249/4/IAA_2016_MNRAS_460_M.Fern%c3%a1ndez.pdf
File
MD5
2194af019ed00852598686d11fd1a22a
2101873
application/pdf
IAA_2016_MNRAS_460_M.Fernández.pdf