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1984 Variable Ultraviolet Emission in SY Muscae A. G. Michalitsianos NASA, Goddard Space Flight Center

Menas Kafatos Chapman University, [email protected]

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Recommended Citation Michalitsianos, A.G., Kafatos, M. (1984) Variable ultraviolet emission in SY Muscae, Monthly Notices of the Royal Astronomical Society, 207(3): 575-583. doi: 10.1093/mnras/207.3.575

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Comments This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society : 1984, published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. DOI: 10.1093/mnras/207.3.575

Copyright Royal Astronomical Society/Oxford University Press

This article is available at Chapman University Digital Commons: http://digitalcommons.chapman.edu/scs_articles/122 1984MNRAS.207..575M 623-day permitted composite the the who system. over SY 1 Feast, -5 Introduction © Muscae between absolute enhanced Royal discovered A.:\1200- Robertson Ultraviolet period line spectrum is Astronomical 1980 continuum a an year, pedestal previously, Summary. is gradually the with steady suggested ejection. excited observations M. A. UV UV Received Variable Mon. Virginia NASA 2000 UV emission unique that that consistent & expanding G. continuum September surface Kafatos emission Not. and Catchpole the emission the Goddard was wavelength range 22030, decline UV Michalitsianos 1983 by emission peculiar R. International from optical decreasing prominent superimposed flux Following first we astr. the ultraviolet Society of emission of August with -1 USA shell Space properties have a of in Department phase. 20 (1977) the was Soc. intense this noticed mag hot emission spectra that the a electron range or and 11; Flight, Sim] continued (1984) found sudden • object in the emission and possibly Teff . in Provided in Previously, suggest indicate Ultraviolet 1981 radiation absolute original by enhancement on the changed observed Greenbelt, were = of :\1892 large emission star 207,575-583 A Laboratory rising were density 65 ejection Physics, Henize an number June A.:\1200-3 in monitoring 000 turbulent lines which obtained form the fluctuations M-type by intensity. obtained an field and throughout Explorer radically K the Maryland 11. in presence the in George (1952) 1983 of event for of exhibits sub Cm] SY in in of the The NASA UV N strong 200 Astronomy continuum. velocities dwarf June by ultraviolet Muscae v, the SY Mason the during emission This in character 20771, :\1909 (JUE). continuum who between of in range Michalitsianos 0 disc. 20 regular secondary symbiotic this which Astrophysics emission Muscae v, a has ultraviolet appears University, preliminary normal found indicates USA and C The wavelength of intensity brightened Over exposed flux line rv, JHKL material of light -150-300 these Solar radical lines the exhibited variable He to [ forming also which M3 the 0 Fairfax, variations Physics, flux. coincide III] II that et UV epochs, ratio. that Data the III stages course expelled exhibit change appear range a!. by we A. giant continuum underlying Its SY our are 4363 region, km System (1982b Our a reported a of Muscae optical of photo­ during with over factor where in of broad s- initial broad to from mass data and 1 one the the be of

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