activity
20192026
most citedA Guide to Realistic Uncertainties on Fundamental Properties of Solar-Type Exoplanet Host Stars

207 citations · 639 across the 31 of their papers we have counts for

collaborators
Showing 2023Show all

7 papers · 1 filter

astro-ph.SR2023

TESS Stellar Rotation up to 80 days in the Southern Continuous Viewing Zone

Zachary R. Claytor, Jennifer L. van Saders, Lyra Cao +3

The TESS mission delivers time-series photometry for millions of stars across the sky, offering a probe into stellar astrophysics, including rotation, on a population scale. Howeve…

astro-ph.SR2023★ 23 cited

A close-in giant planet escapes engulfment by its star

Marc Hon, Daniel Huber, Nicholas Z. Rui +39

When main-sequence stars expand into red giants, they are expected to engulf close-in planets. Until now, the absence of planets with short orbital periods around post-expansion, c…

astro-ph.SR2023★ 26 cited

Magnetic activity evolution of solar-like stars: I. S_ph-Age relation derived from Kepler observations

Savita Mathur, Zachary R. Claytor, Angela R. G. Santos +9

The ages of solar-like stars have been at the center of many studies such as exoplanet characterization or Galactic-archaeology. While ages are usually computed from stellar evolut…

astro-ph.IM2023★ 1 cited

Roman CCS White Paper: Adding Fields Hosting Globular Clusters To The Galactic Bulge Time Domain Survey

Samuel K. Grunblatt, Robert F. Wilson, Andrew Winter +9

Despite multiple previous searches, no transiting planets have yet been identified within a globular cluster. This is believed to be due to a combination of factors: the low metall…

astro-ph.SR2023★ 21 cited

Temporal variation of the photometric magnetic activity for the Sun and Kepler solar-like stars

A. R. G. Santos, S. Mathur, R. A. García +9

The photometric time series of solar-like stars can exhibit rotational modulation due to active regions co-rotating with the stellar surface, allowing us to constrain stellar rotat…

astro-ph.EP2023

Nuggets of Wisdom: Determining an Upper Limit on the Number Density of Chickens in the Universe

Rachel Losacco, Zachary Claytor

The lower limit on the chicken density function (CDF) of the observable Universe was recently determined to be approximately 10 chickens pc. For over a year, however…

astro-ph.EP2023★ 34 cited

The TIME Table: Rotation and Ages of Cool Exoplanet Host Stars

Eric Gaidos, Zachary Claytor, Ryan Dungee +2

Age is a stellar parameter that is both fundamental and difficult to determine. Among middle-aged M dwarfs, the most prolific hosts of close-in and detectable exoplanets, gyrochron…