Toward Mapping the Detailed Density Structure of Classical Be Circumstellar Disks

Details Toward Mapping the Detailed Density Structure of Classical Be Circumstellar Disks Toward Mapping the Detailed Density Structure of Classical Be Circumstellar Disks

2007-01-02

arxiv.org/abs/astro-ph/0701010v1

Astrophys.J.656:L21-L24,2007

Astronomy and Astrophysics

Astrophysics

13 pages, accepted by ApJL

Scientific paper

10.1086/512123

The first results from a near-contemporaneous optical and infrared spectroscopic observing program designed to probe the detailed density structure of classical Be circumstellar disks are presented. We report the discovery of asymmetrical infrared emission lines of He I, O I, Fe II, and the Brackett, Paschen, and Pfund series lines of H I which exhibit an opposite V/R orientation (V $>$ R) to that observed for the optical Balmer H$\alpha$ line (V $<$ R) in the classical Be star $\zeta$ Tau. We interpret these data as evidence that the density wave which characterizes $\zeta$ Tau's disk has a significantly different average azimuthal morphology in the inner disk region as compared to the outer disk region. A follow-up multi-wavelength observational campaign to trace the temporal evolution of these line profile morphologies, along with detailed theoretical modeling, is suggested to test this hypothesis.

Affiliated with

Also associated with

No associations

Rating

Toward Mapping the Detailed Density Structure of Classical Be Circumstellar Disks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Toward Mapping the Detailed Density Structure of Classical Be Circumstellar Disks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toward Mapping the Detailed Density Structure of Classical Be Circumstellar Disks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-188856