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B.C. Monsignori Fossi (1), M. Landini (2), J.J. Drake (3), and S.L. Cully (4)
1) Osservatorio Astrofisico di Arcetri, Firenze, Italy
2)
Dipartimento di Astronomia e di Scienza dello Spazio, Universit\`a di
Firenze, Firenze. Italy
3) Center for EUV Astrophysics, University
of California, Berkeley CA 94720, USA
4) Space Science Laboratory,
University of California, Berkeley CA 94720, USA
The Extreme Ultraviolet Explorer (EUVE) spectroscopic and photometric observati ons of the dMe close binary system AT Mic are investigated. The photometric observation shows several small flare-like brightening and just at the very end of the observation a large flare. The spectrometer observation has been used to study a model of the coronal differential emission measure (DEM) as a function of temperature. The DEM shows a minimum at ~E+06 K and a maximum at~E+07 K. A number of highly ionized lines of iron (Fe XVIII-XXIII) are identified by mean s of an EUV synthetic spectrum calculated using the DEM model and the spectral code of Monsignori Fossi and Landini (1994).
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