activity
20182023
most citedNew Methods for Finding Activity-Sensitive Spectral Lines: Combined Visual Identification and an Automated Pipeline Find a Set of 40 Activity Indicators

59 citations · 97 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.EP2023★ 1 cited

Deep-learning based measurement of planetary radial velocities in the presence of stellar variability

Ian Colwell, Virisha Timmaraju, Alexander Wise

We present a deep-learning based approach for measuring small planetary radial velocities in the presence of stellar variability. We use neural networks to reduce stellar RV jitter…

astro-ph.EP2022★ 12 cited

Spectral Line Depth Variability in Radial Velocity Spectra

Alexander Wise, Peter Plavchan, Xavier Dumusque +2

Stellar active regions, including spots and faculae, can create radial velocity (RV) signals that interfere with the detection and mass measurements of low mass exoplanets. In doin…

astro-ph.SR2021★ 16 cited

: Distinguishing Planet-induced Doppler Signatures from Granulation with a Synthetic Spectra Generator

Michael L. Palumbo, Eric B. Ford, Jason T. Wright +3

Owing to recent advances in radial-velocity instrumentation and observation techniques, the detection of Earth-mass planets around Sun-like stars may soon be primarily limited by i…

astro-ph.EP2018★ 59 cited

New Methods for Finding Activity-Sensitive Spectral Lines: Combined Visual Identification and an Automated Pipeline Find a Set of 40 Activity Indicators

A. W. Wise, S. E. Dodson-Robinson, K. Bevenour +1

Starspots, plages, and activity cycles cause radial velocity variations that can either mimic planets or hide their existence. To verify the authenticity of newly discovered planet…

astro-ph.EP2018★ 1 cited

No Giant Planet Pileup Near 1 AU

Alexander W. Wise, Sarah E. Dodson-Robinson

A pileup near 1~AU in the semimajor axis distribution of giant exoplanets has been visually identified using log-spaced distribution plots. Here we propose that looking for feature…

astro-ph.EP2018★ 8 cited

Photoevaporation Does Not Create a Pileup of Giant Planets at 1 AU

Alexander W. Wise, Sarah E. Dodson-Robinson

The semimajor axis distribution of giant exoplanets appears to have a pileup near 1 AU. Photoevaporation opens a gap in the inner few AU of gaseous disks before dissipating them. H…