TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets around M-dwarf Stars and Revised Parameters for Three Others

Bibcode
2023AJ....166..163H
DOI
10.3847/1538-3881/acf56e
Hartman, J. D.; Bakos, G. Á.; Csubry, Z.; Howard, A. W.; Isaacson, H.; Giacalone, S.; Chontos, A.; Narita, N.; Fukui, A.; de Leon, J. P.; Watanabe, N.; Mori, M.; Kagetani, T.; Fukuda, I.; Kawai, Y.; Ikoma, M.; Palle, E.; Murgas, F.; Esparza-Borges, E.; Parviainen, H.; Bouma, L. G.; Cointepas, M.; Bonfils, X.; Almenara, J. M.; Collins, Karen A.; Collins, Kevin I.; Relles, Howard M.; Barkaoui, Khalid; Schwarz, Richard P.; Mourad, Ghachoui; Timmermans, Mathilde; Dransfield, Georgina; Burdanov, Artem; de Wit, Julien; Jehin, Emmanuël; Triaud, Amaury H. M. J.; Gillon, Michaël; Benkhaldoun, Zouhair; Horne, Keith; Sefako, Ramotholo; Jordán, A.; Brahm, R.; Suc, V.; Howell, Steve B.; Furlan, E.; Schlieder, J. E.; Ciardi, D.; Barclay, T.; Gonzales, E. J.; Crossfield, I.; Dressing, C. D.; Goliguzova, M.; Tatarnikov, A.; Ricker, George R.; Vanderspek, Roland; Latham, David W.; Seager, S.; Winn, Joshua N.; Jenkins, Jon M.; Striegel, Stephanie; Shporer, Avi; Vanderburg, Andrew; Levine, Alan M.; Kostov, Veselin B.; Watanabe, David
Referencia bibliográfica

The Astronomical Journal

Fecha de publicación:
10
2023
Número de autores
65
Número de autores del IAC
7
Número de citas
8
Número de citas referidas
5
Descripción
We present the discovery from the TESS mission of two giant planets transiting M-dwarf stars: TOI 4201 b and TOI 5344 b. We also provide precise radial velocity measurements and updated system parameters for three other M dwarfs with transiting giant planets: TOI 519, TOI 3629, and TOI 3714. We measure planetary masses of 0.525 ± 0.064 M J, 0.243 ± 0.020 M J, 0.689 ± 0.030 M J, 2.57 ± 0.15 M J, and 0.412±0.040 M J for TOI 519 b, TOI 3629 b, TOI 3714 b, TOI 4201 b, and TOI 5344 b, respectively. The corresponding stellar masses are 0.372 ± 0.018 M ☉, 0.635 ± 0.032 M ☉, 0.522 ± 0.028 M ☉, 0.626 ± 0.033 M ☉, and 0.612 ± 0.034 M ☉. All five hosts have supersolar metallicities, providing further support for recent findings that, like for solar-type stars, close-in giant planets are preferentially found around metal-rich M-dwarf host stars. Finally, we describe a procedure for accounting for systematic errors in stellar evolution models when those models are included directly in fitting a transiting planet system.
Proyectos relacionados
Image withthe projects' name
Exoplanetas y Astrobiología
La búsqueda de vida en el Universo se ha visto impulsada por los recientes descubrimientos de planetas alrededor de otras estrellas (los llamados exoplanetas), convirtiéndose en uno de los campos más activos dentro de la Astrofísica moderna. En los últimos años los descubrimientos cada vez más numerosos de nuevos exoplanetas y los últimos avances
Enric
Pallé Bago
En ejecución
Tipo
Con árbitro
Sistema Solar y Sistemas Planetarios (SEYSS)
Sistemas de exoplanetas

Te puede interesar

  • Con árbitro
    Magnetic diffusion in solar atmosphere produces measurable electric fields
    The efficient release of magnetic energy in astrophysical plasmas, such as during solar flares, can in principle be achieved through magnetic diffusion, at a rate determined by the associated electric field. However, attempts at measuring electric fields in the solar atmosphere are scarce, and none exist for sites where the magnetic energy is
    Wöger, Friedrich et al.

    Fecha de publicación:

    10
    2024
    Bibcode
    2024NatCo..15.8811A
    Número de citas
    0
  • Con árbitro
    Echo-free quality factor of a multilayer axion haloscope
    We report a methodology to determine the quality factor ( Q) of wavy dark matter detectors equipped with multilayered resonators, including Fabry-Pérot interferometers and the so-called dielectric haloscope. An anechoic chamber enables the observation of the resonance frequency and its amplitude for an unlimited series of layers for the first time
    DALI Collaboration et al.

    Fecha de publicación:

    10
    2024
    Bibcode
    2024PhRvD.110g2013H
    Número de citas
    0
  • Con árbitro
    Perspectives on the physics of late-type stars from beyond low earth orbit, the moon and mars
    With the new discoveries enabled thanks to the recent space missions, stellar physics is going through a revolution. However, these discoveries opened the door to many new questions that require more observations. The European Space Agency's Human and Robotic Exploration program provides an excellent opportunity to push forward the limits of our
    Santos, Ângela R. G. et al.

    Fecha de publicación:

    10
    2024
    Bibcode
    2024npjMG..10...96M
    Número de citas
    0