40 citations · 97 across the 11 of their papers we have counts for
11 papers · 1 filter
COUNTESS I: A Uniformly Vetted Catalog of Known and New Transiting Exoplanets in the TESS Northern Continuous Viewing Zone
Andrew Hotnisky, Rachel B. Fernandes, Kevin K. Hardegree-Ullman +9
The Transiting Exoplanet Survey Satellite (TESS) has transformed the study of nearby exoplanetary systems; however, its nominal observing strategy limits sensitivity to planets wit…
Are We There Yet? Challenges in Quantifying the Frequency of Earth Analogs in the Habitable Zone
Rachel B. Fernandes, Samson Johnson, Galen J. Bergsten +43
Searching for life elsewhere in the universe is one of the most highly prioritized pursuits in astronomy today. However, the ability to observe evidence of Earth-like life through…
Why Estimating is Difficult: A Kepler-Centric Perspective
Steve Bryson, Michelle Kunimoto, Ruslan Belikov +13
, the occurrence rate of rocky habitable zone exoplanets orbiting Sun-like stars, is of great interest to both the astronomical community and the general public. The Ke…
Scaling K2 VIII: Short-Period Sub-Neptune Occurrence Rates Peak Around Early-Type M Dwarfs
Kevin K. Hardegree-Ullman, Galen J. Bergsten, Jessie L. Christiansen +6
We uniformly combined data from the NASA Kepler and K2 missions to compute planet occurrence rates across the entire FGK and M dwarf stellar range. The K2 mission, driven by target…
Signatures of Atmospheric Mass Loss and Planet Migration in the Time Evolution of Short-Period Transiting Exoplanets
Rachel B. Fernandes, Galen J. Bergsten, Gijs D. Mulders +19
Comparative studies of young and old exoplanet populations offer a glimpse into how planets may form and evolve with time. We present an occurrence rate study of short-period (1…
The First Evidence of a Host Star Metallicity Cut-off In The Formation of Super-Earth Planets
Kiersten M. Boley, Jessie L. Christiansen, Jon Zink +7
Planet formation is expected to be severely limited in disks of low metallicity, owing to both the small solid mass reservoir and the low opacity accelerating the disk gas dissipat…
Doomed Worlds I: No new evidence for orbital decay in a long-term survey of 43 ultra-hot Jupiters
Elisabeth R. Adams, Brian Jackson, Amanda A. Sickafoose +8
Ultra-hot Jupiters are likely doomed by tidal forces to undergo orbital decay and eventual disruption by their stars, but the timescale over which this process unfolds is unknown.…
Scaling K2 VII: Evidence for a high occurrence rate of hot sub-Neptunes at intermediate ages
Jessie L. Christiansen, Jon K. Zink, Kevin K. Hardegree-Ullman +6
The NASA K2 mission obtained high precision time-series photometry for four young clusters, including the near-twin 600-800 Myr-old Praesepe and Hyades clusters. Hot sub-Neptunes a…
Scaling K2. VI. Reduced Small Planet Occurrence in High Galactic Amplitude Stars
Jon K. Zink, Kevin K. Hardegree-Ullman, Jessie L. Christiansen +13
In this study, we performed a homogeneous analysis of the planets around FGK dwarf stars observed by the Kepler and K2 missions, providing spectroscopic parameters for 310 K2 targe…
Scaling K2. V. Statistical Validation of 60 New Exoplanets From K2 Campaigns 2-18
Jessie L. Christiansen, Sakhee Bhure, Jon K. Zink +39
The NASA K2 mission, salvaged from the hardware failures of the Kepler telescope, has continued Kepler's planet-hunting success. It has revealed nearly 500 transiting planets aroun…
Scaling K2. IV. A Uniform Planet Sample for Campaigns 1-8 and 10-18
J. K. Zink, K. K. Hardegree-Ullman, J. L. Christiansen +6
We provide the first full K2 transiting exoplanet sample, using photometry from Campaigns 1-8 and 10-18, derived through an entirely automated procedure. This homogeneous planet ca…