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GIOVANNI PERES

SADE: The starspot and dynamo explorer

  • Authors: Martens, P.; Acton, L.; Klumpar, D.; Kankelborg, C.; Stern, R.; Peres, G.; Culhane, J.
  • Publication year: 2003
  • Type: Proceedings
  • Key words: Space and Planetary Science; Astronomy and Astrophysics
  • OA Link: http://hdl.handle.net/10447/232429

Abstract

We propose a mission called SADE, the Starspot And Dynamo Explorer, to study dynamo activity in nearby late-type stars. The onboard instruments will be a Ca-K telescope for magnetically dominated chromospheric emission, and an X-ray grazing incidence telescope to study coronal emission. We design the mission for a life-time of 15 years or longer to capture a full activity cycle for most solar-type stars. We aim to firmly establish the spectrum of the relation between chromospheric and coronal emission in late-type stars, and capture one or more stars going into or coming out of a Maunder type minimum. Operation costs will be kept to a minimum by automating mission operations to a maximum, and have the science operations be carried out by students at Montana State University. © 2003 COSPAR. Published by Elsevier Ltd. All rights reserved.