TOI-1268b: The youngest hot Saturn-mass transiting exoplanet

J 2022

TOI-1268b: The youngest hot Saturn-mass transiting exoplanet

ŠUBJAK, J.; M. ENDL; P. CHATURVEDI; R. KARJALAINEN; W. D. COCHRAN et al.

Základní údaje

Originální název

TOI-1268b: The youngest hot Saturn-mass transiting exoplanet

Název česky

TOI-1268b: nejmladší tranzitující exoplaneta typu horký Saturn

Autoři

ŠUBJAK, J.; M. ENDL; P. CHATURVEDI; R. KARJALAINEN; W. D. COCHRAN; M. ESPOSITO; D. GANDOLFI; K. W. F. LAM; K. STASSUN; Jiří ŽÁK; N. LODIEU; H. M. J. BOFFIN; P. J. MACQUEEN; A. HATZES; E. W. GUENTHER; I. GEORGIEVA; S. GRZIWA; H. SCHMERLING; Marek SKARKA; Martin BLAŽEK; Marie KARJALAINEN; Magdalena ŠPOKOVÁ; H. ISAACSON; A. W. HOWARD; C. J. BURKE; V. Van EYLEN; B. FALK; M. FRIDLUND; E. GOFFO; J. M. JENKINS; J. KORTH; J. J. LISSAUER; J. H. LIVINGSTON; R. LUQUE; A. MURESAN; H. P. OSBORN; E. PALLÉ; C. M. PERSSON; S. REDFIELD; G. R. RICKER; S. SEAGER; L. M. SERRANO; A. M. S. SMITH a Petr KABÁTH

Vydání

Astronomy & Astrophysics, EDP Sciences, 2022, 0004-6361

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10300 1.3 Physical sciences

Stát vydavatele

Francie

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL, URL

Impakt faktor

Impact factor: 6.500

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/22:00125507

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

techniques: spectroscopic; techniques: radial velocities; techniques: photometric; planetary systems; planets and satellites: gaseous planets; planets and satellites: atmospheres

Štítky

14312040, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 25. 7. 2022 15:51, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

We report the discovery of TOI-1268b, a transiting Saturn-mass planet from the TESS space mission. With an age of less than 1 Gyr, derived from various age indicators, TOI-1268b is the youngest Saturn-mass planet known to date; it contributes to the small sample of well-characterised young planets. It has an orbital period of P = 8.1577080 ± 0.0000044 days, and transits an early K-dwarf star with a mass of M* = 0.96 ± 0.04 M⊙, a radius of R* = 0.92 ± 0.06 R⊙, an effective temperature of Teff = 5300 ± 100 K, and a metallicity of 0.36 ± 0.06 dex. By combining TESS photometry with high-resolution spectra acquired with the Tull spectrograph at the McDonald Observatory, and the high-resolution spectrographs at the Tautenburg and Ondřejov Observatories, we measured a planetary mass of Mp = 96.4 ± 8.3 M⊕ and a radius of Rp = 9.1 ± 0.6 R⊕. TOI-1268 is an ideal system for studying the role of star-planet tidal interactions for non-inflated Saturn-mass planets. We used system parameters derived in this paper to constrain the planet’s tidal quality factor to the range of 104.5–5.3. When compared with the sample of other non-inflated Saturn-mass planets, TOI-1268b is one of the best candidates for transmission spectroscopy studies.

Citovat

@article{1840478,
   author = {Šubjak, J. and Endl, M. and Chaturvedi, P. and Karjalainen, R. and Cochran, W. D. and Esposito, M. and Gandolfi, D. and Lam, K. W. F. and Stassun, K. and Žák, Jiří and Lodieu, N. and Boffin, H. M. J. and MacQueen, P. J. and Hatzes, A. and Guenther, E. W. and Georgieva, I. and Grziwa, S. and Schmerling, H. and Skarka, Marek and Blažek, Martin and Karjalainen, Marie and Špoková, Magdalena and Isaacson, H. and Howard, A. W. and Burke, C. J. and Eylen, V. Van and Falk, B. and Fridlund, M. and Goffo, E. and Jenkins, J. M. and Korth, J. and Lissauer, J. J. and Livingston, J. H. and Luque, R. and Muresan, A. and Osborn, H. P. and Pallé, E. and Persson, C. M. and Redfield, S. and Ricker, G. R. and Seager, S. and Serrano, L. M. and Smith, A. M. S. and Kabáth, Petr},
   article_number = {June},
   doi = {https://doi.org/10.1051/0004-6361/202142883},
   keywords = {techniques: spectroscopic; techniques: radial velocities; techniques: photometric; planetary systems; planets and satellites: gaseous planets; planets and satellites: atmospheres},
   language = {eng},
   issn = {0004-6361},
   journal = {Astronomy & Astrophysics},
   title = {TOI-1268b: The youngest hot Saturn-mass transiting exoplanet},
   url = {https://arxiv.org/abs/2201.13341},
   volume = {662},
   year = {2022}
}

TY  - JOUR
ID  - 1840478
AU  - Šubjak, J. - Endl, M. - Chaturvedi, P. - Karjalainen, R. - Cochran, W. D. - Esposito, M. - Gandolfi, D. - Lam, K. W. F. - Stassun, K. - Žák, Jiří - Lodieu, N. - Boffin, H. M. J. - MacQueen, P. J. - Hatzes, A. - Guenther, E. W. - Georgieva, I. - Grziwa, S. - Schmerling, H. - Skarka, Marek - Blažek, Martin - Karjalainen, Marie - Špoková, Magdalena - Isaacson, H. - Howard, A. W. - Burke, C. J. - Eylen, V. Van - Falk, B. - Fridlund, M. - Goffo, E. - Jenkins, J. M. - Korth, J. - Lissauer, J. J. - Livingston, J. H. - Luque, R. - Muresan, A. - Osborn, H. P. - Pallé, E. - Persson, C. M. - Redfield, S. - Ricker, G. R. - Seager, S. - Serrano, L. M. - Smith, A. M. S. - Kabáth, Petr
PY  - 2022
TI  - TOI-1268b: The youngest hot Saturn-mass transiting exoplanet
JF  - Astronomy & Astrophysics
VL  - 662
IS  - June
SP  - 1-21
EP  - 1-21
PB  - EDP Sciences
SN  - 00046361
KW  - techniques: spectroscopic
KW  - techniques: radial velocities
KW  - techniques: photometric
KW  - planetary systems
KW  - planets and satellites: gaseous planets
KW  - planets and satellites: atmospheres
UR  - https://arxiv.org/abs/2201.13341
N2  - We report the discovery of TOI-1268b, a transiting Saturn-mass planet from the TESS space mission. With an age of less than 1 Gyr, derived from various age indicators, TOI-1268b is the youngest Saturn-mass planet known to date; it contributes to the small sample of well-characterised young planets. It has an orbital period of P = 8.1577080 ± 0.0000044 days, and transits an early K-dwarf star with a mass of M* = 0.96 ± 0.04 M⊙, a radius of R* = 0.92 ± 0.06 R⊙, an effective temperature of Teff = 5300 ± 100 K, and a metallicity of 0.36 ± 0.06 dex. By combining TESS photometry with high-resolution spectra acquired with the Tull spectrograph at the McDonald Observatory, and the high-resolution spectrographs at the Tautenburg and Ondřejov Observatories, we measured a planetary mass of Mp = 96.4 ± 8.3 M⊕ and a radius of Rp = 9.1 ± 0.6 R⊕. TOI-1268 is an ideal system for studying the role of star-planet tidal interactions for non-inflated Saturn-mass planets. We used system parameters derived in this paper to constrain the planet’s tidal quality factor to the range of 104.5–5.3. When compared with the sample of other non-inflated Saturn-mass planets, TOI-1268b is one of the best candidates for transmission spectroscopy studies.
ER  -

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