Is It Possible To Observe Radiation Of FUORs Boundary Layer?
L. Errico1, S.A. Lamzin2, M. Teodorani1,
A.A. Vittone1,
F. Giovannelli3 and C. Rossi4
1 Osservatorio Astronomico di Capodimonte, Via Moiariello 16, I-80131
Napoli, Italy
2 Sternberg Astronomical Institute, Moscow V-234, 119899 Russia
3 stituto di Astrofisica Spaziale, CNR, Via E.Fermi 21, C.P. 67,
I-00044 Frascati (Roma), Italy
4Istituto Astronomico, Universitá "La Sapienza" di Roma,
Via Lancisi 29, I-00161 Roma, Italy
We have estimated the optical depth of stellar wind of 3 FUORs (V1015 Cyg,
FU Ori, Z CMa) in Balmer and Paschen continuum and conclude that it seems
plausible that it exceeds unity. If so it is not possible in principle to
observe optical and UV radiation from the innermost and the hottest regions
of these objects, i.e. boundary layer of the accretion disk.
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