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20182025
most citedSpeckle Observations of TESS Exoplanet Host Stars. II. Stellar Companions at 1-1000 AU and Implications for Small Planet Detection

89 citations · 1.1k across the 51 of their papers we have counts for

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Showing 2021Show all

16 papers · 1 filter

astro-ph.EP2021★ 22 cited

A 38 Million Year Old Neptune-Sized Planet in the Kepler Field

L. G. Bouma, J. L. Curtis, K. Masuda +12

Kepler 1627A is a G8V star previously known to host a 3.8 Earth-radius planet on a 7.2 day orbit. The star was observed by the Kepler space telescope because it is nearby (d=329 pc…

cs.NI2021★ 4 cited

Study on the Data Processing of the IOT Sensor Network Based on Hadoop Cloud Platform and TWLGA Scheduling Algorithm

Guoyu Li, Kang Yang

The Internet of Things (IOT) sensor network is an effective solution for monitoring environment condition. IOT sensor network generates massive data, and the abilities of massive d…

astro-ph.EP2021★ 1 cited

TOI 560 : Two Transiting Planets Orbiting a K Dwarf Validated with iSHELL, PFS and HIRES RVs

Mohammed El Mufti, Peter P. Plavchan, Howard Isaacson +92

We validate the presence of a two-planet system orbiting the 0.15--1.4 Gyr K4 dwarf TOI 560 (HD 73583). The system consists of an inner moderately eccentric transiting mini-Neptune…

astro-ph.EP2021★ 49 cited

TOI-2109b: An Ultrahot Gas Giant on a 16 hr Orbit

Ian Wong, Avi Shporer, George Zhou +56

We report the discovery of an ultrahot Jupiter with an extremely short orbital period of days (16 hr). The plane…

astro-ph.EP2021★ 9 cited

TOI-712: a system of adolescent mini-Neptunes extending to the habitable zone

Sydney Vach, Samuel N. Quinn, Andrew Vanderburg +40

As an all-sky survey, NASA's mission is able to detect the brightest and rarest types of transiting planetary systems, including young planets that enable study of the evolu…

astro-ph.EP2021★ 26 cited

TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf

N. Schanche, F. J. Pozuelos, M. N. Günther +61

Thanks to the relative ease of finding and characterizing small planets around M dwarf stars, these objects have become cornerstones in the field of exoplanet studies. The current…

astro-ph.EP2021★ 46 cited

TOI-2076 and TOI-1807: Two young, comoving planetary systems within 50 pc identified by TESS that are ideal candidates for further follow-up

Christina Hedges, Alex Hughes, Steven Giacalone +42

We report the discovery of two planetary systems around comoving stars; TOI-2076 (TIC 27491137) and TOI-1807 (TIC 180695581). TOI-2076 is a nearby (41.9 pc) multi-planetary system…

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★ 50 cited

The young HD 73583 (TOI-560) planetary system: Two 10-M mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf

O. Barragán, D. J. Armstrong, D. Gandolfi +103

We present the discovery and characterisation of two transiting planets observed by \textit{TESS} in the light curves of the young and bright (V=9.67) star HD73583 (TOI-560). We pe…

astro-ph.EP2021★ 83 cited

TESS Hunt for Young and Maturing Exoplanets (THYME) VI: an 11 Myr giant planet transiting a very low-mass star in Lower Centaurus Crux

Andrew W. Mann, Mackenna L. Wood, Stephen P. Schmidt +48

Mature super-Earths and sub-Neptunes are predicted to be Jovian radius when younger than 10 Myr. Thus, we expect to find 5-15 planets around young stars even if t…

astro-ph.SR2021★ 7 cited

A Speckle-Imaging Search for Close and Very Faint Companions to the Nearest and Brightest Wolf-Rayet Stars

Michael M. Shara, Steve B. Howell, Elise Furlan +4

Gravitationally bound companions to stars enable determinations of their masses, and offer clues to their formation, evolution and dynamical histories. So motivated, we have carrie…

astro-ph.EP2021

A large sub-Neptune transiting the thick-disk M4V TOI-2406

R. D. Wells, B. V. Rackham, N. Schanche +71

Large sub-Neptunes are uncommon around the coolest stars in the Galaxy and are rarer still around those that are metal-poor. However, owing to the large planet-to-star radius ratio…

astro-ph.SR2021★ 4 cited

A Speckle-Imaging Search for Close Triple Companions of Cataclysmic Binaries

Michael M. Shara, Steve B. Howell, Elise Furlan +4

The orbital periods of most eclipsing cataclysmic binaries are not undergoing linear secular decreases of order a few parts per billion as expected from simple theory. Instead, the…

astro-ph.SR2021★ 89 cited

Speckle Observations of TESS Exoplanet Host Stars. II. Stellar Companions at 1-1000 AU and Implications for Small Planet Detection

Kathryn V. Lester, Rachel A. Matson, Steve B. Howell +7

We present high angular resolution imaging observations of 517 host stars of TESS exoplanet candidates using the `Alopeke and Zorro speckle cameras at Gemini North and South. The s…

astro-ph.EP2021★ 15 cited

Two Massive Jupiters in Eccentric Orbits from the TESS Full Frame Images

Mma Ikwut-Ukwa, Joseph E. Rodriguez, Samuel N. Quinn +43

We report the discovery of two short-period massive giant planets from NASA's Transiting Exoplanet Survey Satellite (TESS). Both systems, TOI-558 (TIC 207110080) and TOI-559 (TIC 2…

astro-ph.EP2021

The NASA High-Resolution Speckle Interferometric Imaging Program: Validation and Characterization of Exoplanets and Their Stellar Hosts

Steve B. Howell, Nicholas J. Scott, Rachel A. Matson +5

Starting in 2008, NASA has provided the exoplanet community an observational program aimed at obtaining the highest resolution imaging available as part of its mission to validate…