609 citations · 12.2k across the 315 of their papers we have counts for
24 papers · 1 filter
The Little Dippers: Transits of Star-grazing Exocomets?
Megan Ansdell, Eric Gaidos, Tom L. Jacobs +9
We describe EPIC 205718330 and EPIC 235240266, two systems identified in the K2 data whose light curves contain episodic drops in brightness with shapes and durations similar to th…
K2-263b: A 50-day period sub-Neptune with a mass measurement using HARPS-N
A. Mortier, A. S. Bonomo, V. M. Rajpaul +32
This paper reports on the validation and mass measurement of K2-263b, a sub-Neptune orbiting a quiet G9V star. Using K2 data from campaigns C5 and C16, we find this planet to have…
TESS Discovery of an ultra-short-period planet around the nearby M dwarf LHS 3844
Roland Vanderspek, Chelsea X. Huang, Andrew Vanderburg +45
Data from the newly-commissioned \textit{Transiting Exoplanet Survey Satellite} (TESS) has revealed a "hot Earth" around LHS 3844, an M dwarf located 15 pc away. The planet has a r…
Zodiacal Exoplanets in Time (ZEIT) VIII: A Two Planet System in Praesepe from K2 Campaign 16
Aaron C. Rizzuto, Andrew Vanderburg, Andrew W. Mann +5
Young planets offer a direct view of the formation and evolution processes that produced the diverse population of mature exoplanet systems known today. The repurposed Kepler missi…
A Discrete Set of Possible Transit Ephemerides for Two Long Period Gas Giants Orbiting HIP 41378
Juliette C. Becker, Andrew Vanderburg, Joseph E. Rodriguez +22
In 2015, K2 observations of the bright (V = 8.9, K = 7.7) star HIP 41378 revealed a rich system of at least five transiting exoplanets, ranging in size from super-Earths to gas gia…
TESS Discovery of a Transiting Super-Earth in the Mensae System
Chelsea X. Huang, Jennifer Burt, Andrew Vanderburg +45
We report the detection of a transiting planet around Mensae (HD 39091), using data from the Transiting Exoplanet Survey Satellite (TESS). The solar-type host star is unusually…
Photodynamical analysis of the triply eclipsing hierarchical triple system EPIC 249432662
T. Borkovits, S. Rappaport, T. Kaye +16
Using Campaign 15 data from the K2 mission, we have discovered a triply-eclipsing triple star system: EPIC 249432662. The inner eclipsing binary system has a period of 8.23 days, w…
Characterization of Low Mass K2 Planet Hosts Using Near-Infrared Spectroscopy
Romy Rodríguez Martínez, Sarah Ballard, Andrew Mayo +3
We present moderate resolution near-infrared spectra in and band of M dwarf hosts to candidate transiting exoplanets discovered by NASA's K2 mission. We employ known emp…
Survival Function Analysis of Planet Size Distribution with GAIA Data Release 2 Updates
Li Zeng, Stein B. Jacobsen, Dimitar D. Sasselov +1
Applying the survival function analysis to the planet radius distribution of the Kepler confirmed/candidate planets, we have identified two natural divisions of planet radius at 4…
EPIC 246851721 b: A Tropical Jupiter Transiting a Rapidly Rotating Star in a Well-Aligned Orbit
Liang Yu, George Zhou, Joseph E. Rodriguez +15
We report the discovery of EPIC 246851721 b, a "tropical" Jupiter in a 6.18-day orbit around the bright () star EPIC 246851721 (TYC 1283-739-1). We present a detailed ana…
The warm Neptunes around HD 106315 have low stellar obliquities
George Zhou, Joseph E. Rodriguez, Andrew Vanderburg +8
We present the obliquity of the warm Neptune HD 106315c measured via a series of spectroscopic transit observations. HD 106315c is a 4.4 REarth warm Neptune orbiting a moderately r…
Planet Size Distribution from the Kepler Mission and its Implications for Planet Formation
Li Zeng, Stein B. Jacobsen, Eugenia Hyung +8
The size distribution of exoplanets is a bimodal division into two groups: Rocky planet (<2 Earth radii) and water-rich planet (>2 Earth radii) with or without gaseous envelope.
A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet
Joseph E. Rodriguez, Juliette C. Becker, Jason D. Eastman +20
We report the discovery of a compact multi-planet system orbiting the relatively nearby (78pc) and bright () K-star, K2-266 (EPIC248435473). We identify up to six possible p…
Zodiacal Exoplanets in Time (ZEIT) VII: A Temperate Candidate Super-Earth in the Hyades Cluster
Andrew Vanderburg, Andrew W. Mann, Aaron Rizzuto +15
Transiting exoplanets in young open clusters present opportunities to study how exoplanets evolve over their lifetimes. Recently, significant progress detecting transiting planets…
EPIC 219217635: A Doubly Eclipsing Quadruple System Containing an Evolved Binary
T. Borkovits, S. Albrecht, S. Rappaport +14
We have discovered a doubly eclipsing, bound, quadruple star system in the field of K2 Campaign 7. EPIC 219217635 is a stellar image with that contains an eclipsing bin…
Detecting Exomoons Via Doppler Monitoring of Directly Imaged Exoplanets
Andrew Vanderburg, Saul A. Rappaport, Andrew W. Mayo
Recently, Teachey, Kipping, and Schmitt (2018) reported the detection of a candidate exomoon, tentatively designated Kepler-1625b I, around a giant planet in the Kepler field. The…
Transiting Disintegrating Planetary Debris around WD 1145+017
Andrew Vanderburg, Saul A. Rappaport
More than a decade after astronomers realized that disrupted planetary material likely pollutes the surfaces of many white dwarf stars, the discovery of transiting debris orbiting…
275 Candidates and 149 Validated Planets Orbiting Bright Stars in K2 Campaigns 0-10
Andrew W. Mayo, Andrew Vanderburg, David W. Latham +25
Since 2014, NASA's K2 mission has observed large portions of the ecliptic plane in search of transiting planets and has detected hundreds of planet candidates. With observations pl…
An accurate mass determination for Kepler-1655b, a moderately-irradiated world with a significant volatile envelope
R. D. Haywood, A. Vanderburg, A. Mortier +32
We present the confirmation of a small, moderately-irradiated (F = 155 +/- 7 Fearth) Neptune with a substantial gas envelope in a P=11.8728787+/-0.0000085-day orbit about a quiet,…
K2-231 b: A sub-Neptune exoplanet transiting a solar twin in Ruprecht 147
Jason Lee Curtis, Andrew Vanderburg, Guillermo Torres +9
We identify a sub-Neptune exoplanet ( R) transiting a solar twin in the Ruprecht 147 star cluster (3 Gyr, 300 pc, [Fe/H] = +0.1 dex). The ~81 day light…
Two warm, low-density sub-Jovian planets orbiting bright stars in K2 campaigns 13 and 14
Liang Yu, Joseph E. Rodriguez, Jason D. Eastman +25
We report the discovery of two planets transiting the bright stars HD 89345 (EPIC 248777106, , ) in K2 Campaign 14 and HD 286123 (EPIC 247098361, , $K=8.…
The K2-138 System: A Near-Resonant Chain of Five Sub-Neptune Planets Discovered by Citizen Scientists
Jessie L. Christiansen, Ian J. M. Crossfield, Geert Barentsen +25
K2-138 is a moderately bright (V = 12.2, K = 10.3) main sequence K-star observed in Campaign 12 of the NASA K2 mission. It hosts five small (1.6-3.3R_Earth) transiting planets in a…
An ultra-short period rocky super-Earth with a secondary eclipse and a Neptune-like companion around K2-141
Luca Malavolta, Andrew W. Mayo, Tom Louden +44
Ultra-short period (USP) planets are a class of low mass planets with periods shorter than one day. Their origin is still unknown, with photo-evaporation of mini-Neptunes and in-si…
Discovery of a Transiting Adolescent Sub-Neptune Exoplanet with K2
Trevor J. David, Eric E. Mamajek, Andrew Vanderburg +19
The role of stellar age in the measured properties and occurrence rates of exoplanets is not well understood. This is in part due to a paucity of known young planets and the uncert…