Spots, plages, and flares onλAndromedae and II Pegasi

2007/11/21 by A. Frasca, K. Biazzo, G. Taš +4 · 52 citations
Physics and Astronomy · #Astro and Planetary Science #Astronomy #Astrophysics #Astrophysics and Star Formation Studies #Flare #PEG ratio #Physics #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.1051/0004-6361:20077915

published in Astronomy and Astrophysics 479(2), 557-565 (EDP Sciences) · Accepted for publication in A&A (7 November 2007) 12 Pages, 7 Figures

arxiv created 2007/11/21 · openalex publication_date 2007/12/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Aims.We present the results of a contemporaneous photometric and spectroscopic monitoring of two RS CVn binaries, namely λ And and II Peg. The aim of this work is to investigate the behavior of surface inhomogeneities in the atmospheres of the active components of these systems that have nearly the same temperatures but different gravities.

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• λ And: a post-main-sequence wind from a solar-mass star
• Phase II of the LAMOST-Kepler/K2 Survey. I. Time Series of Medium-resolution Spectroscopic Observations
• FIRST ZEEMAN DOPPLER IMAGING OF A COOL STAR USING ALL FOUR STOKES PARAMETERS

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