activity
20152026
most citedProbable detection of an eruptive filament from a superflare on a solar-type star

144 citations · 1.1k across the 67 of their papers we have counts for

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13 papers · 1 filter

astro-ph.EP2026

Discovery of an Eccentric Hot Super-Jupiter Leaving the Transiting Geometry of the Early-A-type star TOI-1355

Noriharu Watanabe, Norio Narita, Akihiko Fukui +20

Hot Jupiters orbiting hot stars ( K) are suggested to have experienced high-eccentricity migration, often evidenced by the tendency for misaligned orbits, de…

astro-ph.EP2023★ 8 cited

Two sub-Neptunes around the M dwarf TOI-1470

E. González-Álvarez, M. R. Zapatero Osorio, J. A. Caballero +50

Aims. A transiting planet candidate with a sub-Neptune radius orbiting the nearby ( = 51.90.07 pc) M1.5 V star TOI-1470 with a period of 2.5 d was announced by the NA…

astro-ph.EP2023★ 21 cited

TOI-1416: A system with a super-Earth planet with a 1.07d period

H. J. Deeg, I. Y. Georgieva, G. Nowak +49

TOI 1416 (BD+42 2504, HIP 70705) is a V=10 late G or early K-type dwarf star with transits detected by TESS. Radial velocities verify the presence of the transiting planet TOI-1416…

astro-ph.EP2022★ 7 cited

The TESS-Keck Survey. XIII. An Eccentric Hot Neptune with a Similar-Mass Outer Companion around TOI-1272

Mason G. MacDougall, Erik A. Petigura, Tara Fetherolf +58

We report the discovery of an eccentric hot Neptune and a non-transiting outer planet around TOI-1272. We identified the eccentricity of the inner planet, with an orbital period of…

astro-ph.EP2022★ 18 cited

TOI-1696: a nearby M4 dwarf with a planet in the Neptunian desert

Mayuko Mori, John H. Livingston, Jerome de Leon +59

We present the discovery and validation of a temperate sub-Neptune around the nearby mid-M dwarf TIC 470381900 (TOI-1696), with a radius of and an orbita…

astro-ph.EP2022★ 12 cited

Validation and atmospheric exploration of the sub-Neptune TOI-2136b around a nearby M3 dwarf

K. Kawauchi, F. Murgas, E. Palle +51

The NASA space telescope is currently in the extended mission of its all-sky search for new transiting planets. Of the thousands of candidates that TESS is expected to deliv…

astro-ph.EP2022★ 41 cited

A Possible Alignment Between the Orbits of Planetary Systems and their Visual Binary Companions

Sam Christian, Andrew Vanderburg, Juliette Becker +111

Astronomers do not have a complete picture of the effects of wide-binary companions (semimajor axes greater than 100 AU) on the formation and evolution of exoplanets. We investigat…

astro-ph.EP2022★ 11 cited

TOI-1442 b and TOI-2445 b: two potentially rocky ultra-short period planets around M dwarfs

G. Morello, H. Parviainen, F. Murgas +52

Context. Exoplanets with orbital periods of less than one day are known as ultra-short period (USP) planets. They are relatively rare products of planetary formation and evolution…

astro-ph.EP2021★ 41 cited

TOI-530b: A giant planet transiting an M dwarf detected by TESS

Tianjun Gan, Zitao Lin, Sharon Xuesong Wang +44

We report the discovery of TOI-530b, a transiting giant planet around an M0.5V dwarf, delivered by the Transiting Exoplanet Survey Satellite (TESS). The host star is located at a d…

astro-ph.EP2021★ 17 cited

TOI-2285b: A 1.7 Earth-radius Planet Near the Habitable Zone around a Nearby M Dwarf

Akihiko Fukui, Tadahiro Kimura, Teruyuki Hirano +60

We report the discovery of TOI-2285b, a sub-Neptune-sized planet transiting a nearby (42 pc) M dwarf with a period of 27.3 days. We identified the transit signal from the Transitin…

astro-ph.EP2021★ 10 cited

TOI-1749: an M dwarf with a Trio of Planets including a Near-Resonant Pair

A. Fukui, J. Korth, J. H. Livingston +65

We report the discovery of one super-Earth- (TOI-1749b) and two sub-Neptune-sized planets (TOI-1749c and TOI-1749d) transiting an early M dwarf at a distance of 100~pc, which were…

astro-ph.EP2021★ 2 cited

Two Bright M Dwarfs Hosting Ultra-Short-Period Super-Earths with Earth-like Compositions

Teruyuki Hirano, John H. Livingston, Akihiko Fukui +58

We present observations of two bright M dwarfs (TOI-1634 and TOI-1685: ) hosting ultra-short period (USP) planets, identified by the TESS mission. The two stars are simi…

astro-ph.EP2020★ 43 cited

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

J. Kemmer, S. Stock, D. Kossakowski +93

We present the confirmation and characterisation of GJ 3473 b (G 50--16, TOI-488.01), a hot Earth-sized planet orbiting an M4 dwarf star, whose transiting signal ($P=1.1980035\pm0.…