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Ultraviolet Observations of Stellar Coronae: Early Results from HST

Published online by Cambridge University Press:  30 March 2016

J.L. Linsky
J.L. Linsky*
Affiliation:
Joint Institute for Laboratory Astrophysics University of Colorado, Boulder CO 80309-0440, USA

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Although coronae for stars other than the Sun have previously been detected only in the X-ray and radio portions of the spectrum, the HST and future spacecraft sensitive to ultraviolet (UV) and extreme ultraviolet (ETIV) light will have the spectral resolution to study the dynamics and spectroscopic diagnostics of hot coronal plasmas. In the UV region accessible to HST, forbidden lines of FeXII at 1242 and 1349Å, of FeXXI at 1354Å, and other species seen in solar flares, are predicted to be present in the spectra of active stars. Upcoming observations with the Goddard High Resolution Spectrograph (GHRS) by S. Maran will search for these lines in the dM2e star AU Mic and other stars.

Type
Joint Commission Meetings
Information
Highlights of Astronomy , Volume 9: Highlights of Astronomy. As presented at the XXIst General Assembly of the IAU, 1991 , 1992 , pp. 657 - 658
Copyright
Copyright © Kluwer 1992

References

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