التفاصيل البيبلوغرافية
| العنوان: |
The young HD 73583 (TOI-560) planetary system: two 10-M_⊕ mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf |
| المؤلفون: |
Barragán, O., Armstrong, D. J., Gandolfi, D., Carleo, I., Vidotto, A. A., Villarreal D'Angelo, C., OklopÄić, A., Isaacson, H., Oddo, D., Collins, K., Fridlund, M., Sousa, S. G., Persson, C. M., Hellier, C., Howell, S., Howard, A., Redfield, S., Eisner, N., Georgieva, I. Y., Dragomir, D., Bayliss, D., Nielsen, L. D., Klein, B., Aigrain, S., Zhang, M., Teske, J., Twicken, J. D., Jenkins, J., Esposito, M., Van Eylen, V., Rodler, F., Adibekyan, V., Alarcon, J., Anderson, D. R., Akana Murphy, J. M., Barrado, D., Barros, S. C. C., Benneke, B., Bouchy, F., Bryant, E. M., Butler, R. P., Burt, J., Cabrera, J., Casewell, S., Chaturvedi, P., Cloutier, R., Cochran, W. D., Crane, J., Crossfield, I., Crouzet, N., Collins, K. I., Dai, F., Deeg, H. J., Deline, A., Demangeon, O. D. S., Dumusque, X., Figueira, P., Furlan, E., Gnilka, C., Goad, M. R., Goffo, E., Gutiérrez-Canales, F., Hadjigeorghiou, A., Hartman, Z., Hatzes, A. P., Harris, M., Henderson, B., Hirano, T., Hojjatpanah, S., Hoyer, S., Kabáth, P., Korth, J., Lillo-Box, J., Luque, R., Marmier, M., MoÄnik, T., Muresan, A., Murgas, F., Nagel, E., Osborne, H. L. M., Osborn, A., Osborn, H. P., Palle, E., Raimbault, M., Ricker, G. R., Rubenzahl, R. A., Stockdale, C., Santos, N. C., Scott, N., Schwarz, R. P., Shectman, S., Seager, S., Ségransan, D., Serrano, L. M., Skarka, M., Smith, A. M. S., Å ubjak, J., Tan, T. G., Udry, S., Watson, C., Wheatley, P. J., West, R., Winn, J. N., Wang, S. X., Wolfgang, A., Ziegler, C. |
| المصدر: |
Monthly Notices of the Royal Astronomical Society, 514(2), 1606-1627, (2022-08) |
| بيانات النشر: |
Royal Astronomical Society |
| سنة النشر: |
2022 |
| المجموعة: |
Caltech Authors (California Institute of Technology) |
| مصطلحات موضوعية: |
techniques: photometric, techniques: radial velocities, planets and satellites: individual: HD 73583 (TOI-560), stars: activity, Space and Planetary Science, Astronomy and Astrophysics |
| الوصف: |
We present the discovery and characterization of two transiting planets observed by TESS in the light curves of the young and bright (V = 9.67) star HD73583 (TOI-560). We perform an intensive spectroscopic and photometric space- and ground-based follow-up in order to confirm and characterize the system. We found that HD73583 is a young (∼500 Myr) active star with a rotational period of 12.08 ± 0.11 d, and a mass and radius of 0.73 ± 0.02 M_⊙ and 0.65 ± 0.02 R_⊙, respectively. HD 73583 b (P_b = 6.3980420_(-0.0000062)^(+0.0000067) d) has a mass and radius of 10.2_(-3.1)^(+3.4) M_⊕ and 2.79 ± 0.10 R_⊕, respectively, which gives a density of 2.58_(-0.81)^(+0.95) g cmâ»Â³. HD 73583 c (P꜀ = 18.87974_(-0.00074)^+0.00086) d) has a mass and radius of 9.7_(-1.7)^(+1.8) M_⊕ and 2.39_(-0.09)^(+0.10) R_⊕, respectively, which translates to a density of 3.88_(-0.80)^(+0.91) g cmâ»Â³. Both planets are consistent with worlds made of a solid core surrounded by a volatile envelope. Because of their youth and host star brightness, they both are excellent candidates to perform transmission spectroscopy studies. We expect ongoing atmospheric mass-loss for both planets caused by stellar irradiation. We estimate that the detection of evaporating signatures on H and He would be challenging, but doable with present and future instruments. ; © The Author(s) 2022. Published by Oxford University Press on behalf of Royal Astronomical Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0Test/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. Received: 22 October 2021. Revision received: 03 March 2022. Accepted: 05 March 2022. Published: 15 March 2022. This work was supported by the KESPRINT collaboration, an international consortium devoted to the characterization and research of exoplanets discovered with space-based ... |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| العلاقة: |
https://arxiv.org/abs/2110.13069Test; https://doi.org/10.1093/mnras/stac638Test; oai:authors.library.caltech.edu:7kbdq-qke41; eprintid:116021; resolverid:CaltechAUTHORS:20220802-743306000 |
| DOI: |
10.1093/mnras/stac638 |
| الإتاحة: |
https://doi.org/10.1093/mnras/stac638Test |
| حقوق: |
info:eu-repo/semantics/openAccess ; Other |
| رقم الانضمام: |
edsbas.BA0F7EE9 |
| قاعدة البيانات: |
BASE |
