Radio spectroscopy of stellar flares: magnetic reconnection & CME shocks in stellar coronae. Issue Volume 11:Issue S320(2015) (9th September 2016)

• Record Type: Journal Article
• Authors: Villadsen, Jackie; Hallinan, Gregg; Bourke, Stephen
• Editors: Kosovichev, A.G.; Hawley, S.L.; Heinzel, P.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 11:Issue S320(2015)
• Page Start: 191
• Page End: 195
• Publication Date: 2016-09-09
• Subjects: stars: coronae, -- stars: flare, -- stars: individual (UV Ceti), -- stars: mass loss, -- Sun: coronal mass ejections (CMEs), -- Sun: radio radiation, -- radio continuum: stars; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921316008644
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: High-cadence spectroscopy of solar and stellar coherent radio bursts is a powerful diagnostic tool to study coronal conditions during magnetic reconnection in flares and to detect coronal mass ejections (CMEs). We present results from wide-bandwidth VLA observations of nearby active M dwarfs, including some observations with simultaneous VLBA imaging. We also discuss the Starburst program, which will make wide-bandwidth radio spectroscopic observations of nearby active flare stars for 20+ hours a day for multiple years, coming online in spring 2016 at the Owens Valley Radio Observatory. This program should vastly increase the diversity of observed stellar radio bursts and our understanding of their origins, and offers the potential to detect a population of CME-associated radio bursts.