activity
20102025
most citedRotation and differential rotation of active Kepler stars

385 citations · 1.3k across the 22 of their papers we have counts for

collaborators
Showing 2020Show all

7 papers · 1 filter

astro-ph.SR2020★ 8 cited

Inflection point in the power spectrum of stellar brightness variations III: Faculae vs. Spot dominance on stars with known rotation periods

E. M. Amazo-Gomez, A. I. Shapiro, S. K. Solanki +4

Stellar rotation periods can be determined by observing brightness variations caused by active magnetic regions transiting visible stellar disk as the star rotates. The successful…

astro-ph.SR2020★ 33 cited

The Evolution of Rotation and Magnetic Activity in 94 Aqr Aa from Asteroseismology with TESS

Travis S. Metcalfe, Jennifer L. van Saders, Sarbani Basu +29

Most previous efforts to calibrate how rotation and magnetic activity depend on stellar age and mass have relied on observations of clusters, where isochrones from stellar evolutio…

astro-ph.SR2020★ 2 cited

Reply to the comment of T. Metcalfe and J. van Saders on the Science report "The Sun is less active than other solar-like stars"

T. Reinhold, A. I. Shapiro, S. K. Solanki +4

This is our reply to the comment of T. Metcalfe and J. van Saders on the Science report "The Sun is less active than other solar-like stars" by T. Reinhold, A. I. Shapiro, S. K. So…

astro-ph.SR2020★ 20 cited

Solar-type Stars Observed by LAMOST and Kepler

Jinghua Zhang, Alexander I. Shapiro, Shaolan Bi +8

Obtaining measurements of chromospheric and photometric activity of stars with near-solar fundamental parameters and rotation periods is important for a better understanding of sol…

astro-ph.SR2020★ 122 cited

The Sun is less active than other solar-like stars

Timo Reinhold, Alexander I. Shapiro, Sami K. Solanki +4

Magnetic activity of the Sun and other stars causes their brightness to vary. We investigate how typical the Sun's variability is compared to other solar-like stars, i.e. those wit…

astro-ph.SR2020★ 15 cited

Rotation periods from the inflection point in the power spectrum of stellar brightness variations: II. The Sun

E. M. Amazo-Gómez, A. I. Shapiro, S. K. Solanki +5

Young and active stars generally have regular, almost sinusoidal, patterns of variability attributed to their rotation, while the majority of older and less active stars, including…

astro-ph.SR2020★ 100 cited

Stellar rotation periods from K2 Campaigns 0-18 -- Evidence for rotation period bimodality and simultaneous variability decrease

Timo Reinhold, Saskia Hekker

Rotation period measurements of stars observed with the Kepler mission have revealed a lack of stars at intermediate rotation periods, accompanied by a decrease of photometric vari…