activity
20152026
most citedFive Decades of Chromospheric Activity in 59 Sun-like Stars and New Maunder Minimum Candidate HD 166620

54 citations · 368 across the 32 of their papers we have counts for

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Showing 2022Show all

7 papers · 1 filter

astro-ph.EP2022★ 15 cited

NEID Reveals that The Young Warm Neptune TOI-2076 b Has a Low Obliquity

Robert C. Frazier, Gudmundur Stefansson, Suvrath Mahadevan +27

TOI-2076 b is a sub-Neptune-sized planet () that transits a young () bright () K-dwarf hosting a system of three transiting…

astro-ph.SR2022★ 11 cited

Detection of p-mode Oscillations in HD 35833 with NEID and TESS

Arvind F. Gupta, Jacob K. Luhn, Jason T. Wright +15

We report the results of observations of p-mode oscillations in the G0 subgiant star HD 35833 in both radial velocities and photometry with NEID and TESS, respectively. We achieve…

astro-ph.EP2022★ 14 cited

GJ 3929: High Precision Photometric and Doppler Characterization of an Exo-Venus and its Hot, Mini-Neptune-mass Companion

Corey Beard, Paul Robertson, Shubham Kanodia +31

We detail the follow up and characterization of a transiting exo-Venus identified by TESS, GJ 3929b, (TOI-2013b) and its non-transiting companion planet, GJ 3929c (TOI-2013c). GJ 3…

astro-ph.SR2022

HD 166620: Portrait of a Star Entering a Grand Magnetic Minimum

Jacob K. Luhn, Jason T. Wright, Gregory W. Henry +2

HD 166620 was recently identified as a Maunder Minimum candidate based on nearly 50 years of Ca II H & K activity data from Mount Wilson and Keck-HIRES (Baum et al. 2022). These da…

astro-ph.EP2022★ 27 cited

Impact of Correlated Noise on the Mass Precision of Earth-analog Planets in Radial Velocity Surveys

Jacob K. Luhn, Eric B. Ford, Zhao Guo +6

Characterizing the masses and orbits of near-Earth-mass planets is crucial for interpreting observations from future direct imaging missions (e.g., HabEx, LUVOIR). Therefore, the E…

astro-ph.SR2022★ 54 cited

Five Decades of Chromospheric Activity in 59 Sun-like Stars and New Maunder Minimum Candidate HD 166620

Anna C. Baum, Jason T. Wright, Jacob K. Luhn +1

We present five decades of chromospheric activity measurements in 59 Sun-like stars as time series. These include and extend the 35 yr of stellar chromospheric activity observation…

astro-ph.SR2022★ 2 cited

Modeling Stellar Oscillations and Granulation in Radial Velocity Time Series: A Fourier-based Method

Zhao Guo, Eric B. Ford, Dennis Stello +4

Tens of thousands of solar-like oscillating stars have been observed by space missions. Their photometric variability in the Fourier domain can be parameterized by a sum of two sup…