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Multiwavelength Analysis of the Cepheus E Embedded Outflow
Alberto Noriega-Crespo 1 - Peter Garnavich 2
1 Infrared Processing and Analysis Center, California Institute of Technology -
2 Harvard-Smithsonian Center for Astrophysics
The physical and kinematical characteristics of Cepheus E (Cep E) `embedded' outflow are analyzed using CVF ISOCAM data, in conjunction with imaging and spectroscopic data obtained recently in the near-infrared (NIR) and optical wavelengths.
We find that the south lobe of Cep E is detectable at optical wavelengths,
and therefore Cep E provides an excellent example to study the relationship
between optical and embedded outflows. Preliminary results indicate that the
fluxes for the v=0-0 S(5) and S(3) molecular hydrogen (H2) lines
at 6.91 and 9.67 
m, respectively, do not
follow standard molecular shock models, while the fluxes of the NIR H2 lines
at 2 m do. From the optical spectra we conclude that the south lobe has
a radial velocity of -70 ±10 km s-1 and a gas density of 3300 cm-3
(derived from the ratio of the [S II] 
6731 to 6717 lines).
We compare these results with the latest published 2D-3D simulations of
molecular outflows.
Postscript version