A Multiwavelength Perspective of Flares on HR 1099: 4 Years of Coordinated Campaigns

2004/02/25 by R. A. Osten, Rachel A. Osten, Alexander Brown +11
Physics and Astronomy · #Gamma-ray bursts and supernovae #Solar and Space Plasma Dynamics #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.1086/420770

manuscript is 110 pages in length; 36 figures total

arxiv created 2004/02/25 · openalex publication_date 2004/06/25 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We report on 4 years of multiple wavelength observations of the RS CVn system V711 Tau (HR 1099) from 1993, 1994, 1996, and 1998. This combination of radio, ultraviolet (UV), extreme ultraviolet (EUV), and X-ray observations allows us to view, in the most comprehensive manner currently possible, the coronal and upper atmospheric variability of this active binary system. We report on the changing activity state of the system as recorded in the EUV and radio across the 4 years of observations, and study the high-energy variability using an assemblage of X-ray telescopes. We find the following:

Citations

• Are Coronae of Magnetically Active Stars Heated by Flares? II. Extreme Ultraviolet and X‐Ray Flare Statistics and the Differential Emission Measure Distribution
• Collisional Plasma Models with APEC/APED: Emission-Line Diagnostics of Hydrogen-like and Helium-like Ions
• Statistical Analysis of 5 Year Continuous Radio Flare Data from β Persei, V711 Tauri, δ Librae, and UX Arietis