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The Ups and Downs of AD Leo Manuel Gudel & Marc Audard
 

Summary: The Ups and Downs of AD Leo
Manuel G¨udel & Marc Audard
Paul Scherrer Institut, W¨urenlingen & Villigen, CH­5232 Villigen PSI,
Switzerland
Edward F. Guinan
Villanova University, Villanova, PA 19085, USA
Rolf Mewe
SRON Laboratory for Space Research, 3584 CA Utrecht, Netherlands
Jeremy J. Drake
Harvard­Smithsonian Center for Astrophysics, Cambridge, MA, 02138,
USA
Ilya Y. Alekseev
Crimean Astrophysical Observatory, Nauchny, Crimea 334413, Ukraine
Abstract. We present first results of a long coordinated campaign on
AD Leo, using EUVE, BeppoSAX, the VLA, and optical telescopes. The
campaign comprises a time span of 44 days during which AD Leo was
almost continuously the prime target of the EUVE satellite. The coronal
emission was in a state of ongoing variability, raising interesting questions
on the role of flare­like events for coronal heating. We discuss phenomeno­
logical signatures in the light curves and present preliminary results from

  

Source: Audard, Marc - INTEGRAL Science Data Centre & Observatory of Geneva, Université de Genève

 

Collections: Physics