A warm Jupiter transiting an M dwarf: A TESS single transit event confirmed with the Habitable-zone Planet Finder. (arXiv:2007.07098v2 [astro-ph.EP] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Canas_C/0/1/0/all/0/1">Caleb I. Cañas</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Stefansson_G/0/1/0/all/0/1">Gudmundur Stefansson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kanodia_S/0/1/0/all/0/1">Shubham Kanodia</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mahadevan_S/0/1/0/all/0/1">Suvrath Mahadevan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cochran_W/0/1/0/all/0/1">William D. Cochran</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Endl_M/0/1/0/all/0/1">Michael Endl</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Robertson_P/0/1/0/all/0/1">Paul Robertson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bender_C/0/1/0/all/0/1">Chad F. Bender</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ninan_J/0/1/0/all/0/1">Joe P. Ninan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Beard_C/0/1/0/all/0/1">Corey Beard</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lubin_J/0/1/0/all/0/1">Jack Lubin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gupta_A/0/1/0/all/0/1">Arvind F. Gupta</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Everett_M/0/1/0/all/0/1">Mark E. Everett</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Monson_A/0/1/0/all/0/1">Andrew Monson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wilson_R/0/1/0/all/0/1">Robert F. Wilson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lewis_H/0/1/0/all/0/1">Hannah M. Lewis</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Brewer_M/0/1/0/all/0/1">Mary Brewer</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Majewski_S/0/1/0/all/0/1">Steven R. Majewski</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hebb_L/0/1/0/all/0/1">Leslie Hebb</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dawson_R/0/1/0/all/0/1">Rebekah I. Dawson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Diddams_S/0/1/0/all/0/1">Scott A. Diddams</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ford_E/0/1/0/all/0/1">Eric B. Ford</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fredrick_C/0/1/0/all/0/1">Connor Fredrick</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Halverson_S/0/1/0/all/0/1">Samuel Halverson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hearty_F/0/1/0/all/0/1">Fred Hearty</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lin_A/0/1/0/all/0/1">Andrea S.J. Lin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Metcalf_A/0/1/0/all/0/1">Andrew J. Metcalf</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rajagopal_J/0/1/0/all/0/1">Jayadev Rajagopal</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ramsey_L/0/1/0/all/0/1">Lawrence W. Ramsey</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Roy_A/0/1/0/all/0/1">Arpita Roy</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Schwab_C/0/1/0/all/0/1">Christian Schwab</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Terrien_R/0/1/0/all/0/1">Ryan C. Terrien</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wright_J/0/1/0/all/0/1">Jason T. Wright</a>
We confirm the planetary nature of a warm Jupiter transiting the early M
dwarf TOI-1899, using a combination of available TESS photometry;
high-precision, near-infrared spectroscopy with the Habitable-zone Planet
Finder; and speckle and adaptive optics imaging. The data reveal a transiting
companion on an $sim29$-day orbit with a mass and radius of $0.66pm0.07
mathrm{M_{J}}$ and $1.15_{-0.05}^{+0.04} mathrm{R_{J}}$, respectively. The
star TOI-1899 is the lowest-mass star known to host a transiting warm Jupiter,
and we discuss the follow-up opportunities afforded by a warm
($mathrm{T_{eq}}sim362$ K) gas giant orbiting an M0 star. Our observations
reveal that TOI-1899.01 is a puffy warm Jupiter, and we suggest additional
transit observations to both refine the orbit and constrain the true dilution
observed in TESS.
We confirm the planetary nature of a warm Jupiter transiting the early M
dwarf TOI-1899, using a combination of available TESS photometry;
high-precision, near-infrared spectroscopy with the Habitable-zone Planet
Finder; and speckle and adaptive optics imaging. The data reveal a transiting
companion on an $sim29$-day orbit with a mass and radius of $0.66pm0.07
mathrm{M_{J}}$ and $1.15_{-0.05}^{+0.04} mathrm{R_{J}}$, respectively. The
star TOI-1899 is the lowest-mass star known to host a transiting warm Jupiter,
and we discuss the follow-up opportunities afforded by a warm
($mathrm{T_{eq}}sim362$ K) gas giant orbiting an M0 star. Our observations
reveal that TOI-1899.01 is a puffy warm Jupiter, and we suggest additional
transit observations to both refine the orbit and constrain the true dilution
observed in TESS.
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