activity
19982025
most citedThe Interface Region Imaging Spectrograph (IRIS)

1.4k citations · 4.8k across the 63 of their papers we have counts for

collaborators

63 papers

astro-ph.SR2025

The He I D3 Line as a Proxy for Magnetic Activity using EXPRES Solar Observations

Momo Ellwarth, Joe Llama, Lily L. Zhao +6

Stellar activity remains one of the primary challenges in the detection and characterization of low-mass exoplanets, as it can induce radial velocity (RV) variations that mask or m…

astro-ph.SR2024

X-Ray, UV, and Optical Observations of Proxima Centauri's Stellar Cycle

B. J. Wargelin, S. H. Saar, Z. A. Irving +3

Proxima Cen (GJ 551; dM5.5e) is one of only about a dozen fully convective stars known to have a stellar cycle, and the only one to have long-term X-ray monitoring. A previous anal…

astro-ph.SR2024

The Mean Longitudinal Magnetic Field and its Uses in Radial-Velocity Surveys

F. Rescigno, A. Mortier, X. Dumusque +14

This work focuses on the analysis of the mean longitudinal magnetic field as a stellar activity tracer in the context of small exoplanet detection and characterisation in radial-ve…

astro-ph.SR2024

Characterizing Solar Center-to-Limb Radial-Velocity Variability with SDO

Michael L. Palumbo, Steven H. Saar, Raphaëlle D. Haywood

Stellar photospheric inhomogeneities are a significant source of noise which currently precludes the discovery of Earth-mass planets orbiting Sun-like stars with the radial-velocit…

astro-ph.SR2023★ 4 cited

Multicomponent Activity Cycles using Hilbert-Huang Analysis

E. N. Velloso, F. Anthony, J. D. do Nascimento +3

The temporal analysis of stellar activity evolution is usually dominated by a complex trade-off between model complexity and interpretability, often by neglecting the non-stationar…

astro-ph.SR2023★ 19 cited

Asteroseismology and Spectropolarimetry of the Exoplanet Host Star Serpentis

Travis S. Metcalfe, Derek Buzasi, Daniel Huber +31

The bright star Ser hosts a hot Neptune with a minimum mass of 13.6 and a 15.5 day orbit. It also appears to be a solar analog, with a mean rotation period of 25.8 d…