Three Warm Jupiters around Solar-analog stars detected with TESS
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2024
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| author | Eberhardt, Jan Hobson, Melissa J. Henning, Thomas Trifonov, Trifon Brahm, Rafael Espinoza, Nestor Jordán, Andrés Thorngren, Daniel Burn, Remo Rojas, Felipe I. Sarkis, Paula Schlecker, Martin Pinto, Marcelo Tala Barkaoui, Khalid Schwarz, Richard P. Suarez, Olga Guillot, Tristan Triaud, Amaury H. M. J. Günther, Maximilian N. Abe, Lyu Boyle, Gavin Leiva, Rodrigo Suc, Vincent Evans, Phil Dunckel, Nick Ziegler, Carl Falk, Ben Fong, William Rudat, Alexander Shporer, Avi Striegel, Stephanie Watanabe, David Jenkins, Jon M. Seager, Sara Winn, Joshua N. |
| author_facet | Eberhardt, Jan Hobson, Melissa J. Henning, Thomas Trifonov, Trifon Brahm, Rafael Espinoza, Nestor Jordán, Andrés Thorngren, Daniel Burn, Remo Rojas, Felipe I. Sarkis, Paula Schlecker, Martin Pinto, Marcelo Tala Barkaoui, Khalid Schwarz, Richard P. Suarez, Olga Guillot, Tristan Triaud, Amaury H. M. J. Günther, Maximilian N. Abe, Lyu Boyle, Gavin Leiva, Rodrigo Suc, Vincent Evans, Phil Dunckel, Nick Ziegler, Carl Falk, Ben Fong, William Rudat, Alexander Shporer, Avi Striegel, Stephanie Watanabe, David Jenkins, Jon M. Seager, Sara Winn, Joshua N. |
| contents | We report the discovery and characterization of three giant exoplanets orbiting solar-analog stars, detected by the \tess space mission and confirmed through ground-based photometry and radial velocity (RV) measurements taken at La Silla observatory with \textit{FEROS}. TOI-2373\,b is a warm Jupiter orbiting its host star every $\sim$ 13.3 days, and is one of the two most massive known exoplanet with a precisely determined mass and radius around a star similar to the Sun, with an estimated mass of m$_p$ = $9.3^{+0.2}_{-0.2}\,M_{\mathrm{jup}}$, and a radius of $r_p$ = $0.93^{+0.2}_{-0.2}\,R_{\mathrm{jup}}$. With a mean density of $ρ= 14.4^{+0.9}_{-1.0}\,\mathrm{g\,cm}^{-3}$, TOI-2373\,b is among the densest planets discovered so far. TOI-2416\,b orbits its host star on a moderately eccentric orbit with a period of $\sim$ 8.3 days and an eccentricity of $e$ = $0.32^{+0.02}_{-0.02}$. TOI-2416\,b is more massive than Jupiter with $m_p$ = 3.0$^{+0.10}_{-0.09}\,M_{\mathrm{jup}}$, however is significantly smaller with a radius of $r_p$ = $0.88^{+0.02}_{-0.02},R_{\mathrm{jup}}$, leading to a high mean density of $ρ= 5.4^{+0.3}_{-0.3}\,\mathrm{g\,cm}^{-3}$. TOI-2524\,b is a warm Jupiter near the hot Jupiter transition region, orbiting its star every $\sim$ 7.2 days on a circular orbit. It is less massive than Jupiter with a mass of $m_p$ = $0.64^{+0.04}_{-0.04}\,M_{\mathrm{jup}}$, and is consistent with an inflated radius of $r_p$ = $1.00^{+0.02}_{-0.03}\,R_{\mathrm{jup}}$, leading to a low mean density of $ρ= 0.79^{+0.08}_{-0.08}\,\mathrm{g\,cm}^{-3}$. The newly discovered exoplanets TOI-2373\,b, TOI-2416\,b, and TOI-2524\,b have estimated equilibrium temperatures of $860^{+10}_{-10}$ K, $1080^{+10}_{-10}$ K, and $1100^{+20}_{-20}$ K, respectively, placing them in the sparsely populated transition zone between hot and warm Jupiters. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_17592 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Three Warm Jupiters around Solar-analog stars detected with TESS Eberhardt, Jan Hobson, Melissa J. Henning, Thomas Trifonov, Trifon Brahm, Rafael Espinoza, Nestor Jordán, Andrés Thorngren, Daniel Burn, Remo Rojas, Felipe I. Sarkis, Paula Schlecker, Martin Pinto, Marcelo Tala Barkaoui, Khalid Schwarz, Richard P. Suarez, Olga Guillot, Tristan Triaud, Amaury H. M. J. Günther, Maximilian N. Abe, Lyu Boyle, Gavin Leiva, Rodrigo Suc, Vincent Evans, Phil Dunckel, Nick Ziegler, Carl Falk, Ben Fong, William Rudat, Alexander Shporer, Avi Striegel, Stephanie Watanabe, David Jenkins, Jon M. Seager, Sara Winn, Joshua N. Earth and Planetary Astrophysics We report the discovery and characterization of three giant exoplanets orbiting solar-analog stars, detected by the \tess space mission and confirmed through ground-based photometry and radial velocity (RV) measurements taken at La Silla observatory with \textit{FEROS}. TOI-2373\,b is a warm Jupiter orbiting its host star every $\sim$ 13.3 days, and is one of the two most massive known exoplanet with a precisely determined mass and radius around a star similar to the Sun, with an estimated mass of m$_p$ = $9.3^{+0.2}_{-0.2}\,M_{\mathrm{jup}}$, and a radius of $r_p$ = $0.93^{+0.2}_{-0.2}\,R_{\mathrm{jup}}$. With a mean density of $ρ= 14.4^{+0.9}_{-1.0}\,\mathrm{g\,cm}^{-3}$, TOI-2373\,b is among the densest planets discovered so far. TOI-2416\,b orbits its host star on a moderately eccentric orbit with a period of $\sim$ 8.3 days and an eccentricity of $e$ = $0.32^{+0.02}_{-0.02}$. TOI-2416\,b is more massive than Jupiter with $m_p$ = 3.0$^{+0.10}_{-0.09}\,M_{\mathrm{jup}}$, however is significantly smaller with a radius of $r_p$ = $0.88^{+0.02}_{-0.02},R_{\mathrm{jup}}$, leading to a high mean density of $ρ= 5.4^{+0.3}_{-0.3}\,\mathrm{g\,cm}^{-3}$. TOI-2524\,b is a warm Jupiter near the hot Jupiter transition region, orbiting its star every $\sim$ 7.2 days on a circular orbit. It is less massive than Jupiter with a mass of $m_p$ = $0.64^{+0.04}_{-0.04}\,M_{\mathrm{jup}}$, and is consistent with an inflated radius of $r_p$ = $1.00^{+0.02}_{-0.03}\,R_{\mathrm{jup}}$, leading to a low mean density of $ρ= 0.79^{+0.08}_{-0.08}\,\mathrm{g\,cm}^{-3}$. The newly discovered exoplanets TOI-2373\,b, TOI-2416\,b, and TOI-2524\,b have estimated equilibrium temperatures of $860^{+10}_{-10}$ K, $1080^{+10}_{-10}$ K, and $1100^{+20}_{-20}$ K, respectively, placing them in the sparsely populated transition zone between hot and warm Jupiters. |
| title | Three Warm Jupiters around Solar-analog stars detected with TESS |
| topic | Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2402.17592 |