Abstract
New high-quality high spectral resolution observations of the HI line emission from massive young stellar objects are described and discussed. It is proposed that two distinct physical components contribute to the observed emission. One of these is an optically-thick high-velocity stellar wind, the other a more slowly moving optically-thin volume of gas that may, in the case of S106IR at least, be caused by mass loading of the stellar wind. This decomposition is shown to resolve a long-standing problem regarding the relative widths of high and low opacity lines.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bally, J., Snell. R.L., Predmore, R., 1983, Ap. J., 272, 154
Bunn, J.C., D.Phil. Thesis, Oxford University
Bunn, J.C., Drew, J.E., Mon. Not. R. astr. Soc., 255, 449
Drew, J.E., Bunn, J.C., Hoare, M.G., 1993, Mon. Not. R. astr. Soc., in press
Eiroa, C., Elsasser, H., Lahulla, J.F., 1979, Astr. Ap., 74, 89
Felli, M., Staude, H.J., Reddmann, T., Massi, M., Eiroa, C., Hefele, H., Neckel, T., Panagia, N. 1984, Astr. Ap., 135, 261
Garden, R.P., Geballe, T.R., Mon. Not. R. astr. Soc., 220, 611
Hartquist, T.W., Dyson, J.E., Pettini, M., Smith, L.J., 1986, Mon. Not. R. astr. Soc., 221, 715
Persson, S.E., Geballe, T.R., McGregor, P.J., Edwards, S., Lonsdale, C.J., 1984, Ap. J., 286, 289
Persson, S.E., McGregor, P.J., Campbell, B., 1988, Ap. J., 326, 339
Scoville, N., Kleinmann, S.G., Hall, D., Ridgway, S.T., 1983, Ap. J., 275, 201
Simon, M., Cassar, L., 1984, Ap. J., 283, 179
Simon, M., Felli, M., Cassar, L., Fischer, J., Massi, M., 1983, Ap. J., 266, 623
Simon, M., Righini-Cohen, G., Fischer, J., Cassar, L., 1981, Ap. J., 251, 552
Solf, J., Carsenty, U., 1982, Astr. Ap., 113, 142
Staude, H.J., Lenzen, R., Dyck, H.M., Schmidt, G.D., 1982, Ap. J., 255, 95
Wynn-Williams, C., 1982, Ann. Rev. Astr. Astrophys., 20, 587
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1994 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Drew, J.E. (1994). Spectroscopic constraints on outflows from BN-type objects. In: Dyson, J.E., Carling, E.B. (eds) Kinematics and Dynamics of Diffuse Astrophysical Media. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0926-0_7
Download citation
DOI: https://doi.org/10.1007/978-94-011-0926-0_7
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-4399-1
Online ISBN: 978-94-011-0926-0
eBook Packages: Springer Book Archive