Search

Image Details

View Article Bookmark & Share

Choose export citation format:

Export Citation
Large resolution
Hi-Resolution Export to PDF

Near-ultraviolet Excess in Slowly Accreting T Tauri Stars: Limits Imposed by Chromospheric Emission

  • Authors: Laura Ingleby, Nuria Calvet, Edwin Bergin, Gregory Herczeg, Alexander Brown, Richard Alexander, Suzan Edwards, Catherine Espaillat, Kevin France, Scott G. Gregory, Lynne Hillenbrand, Evelyne Roueff, Jeff Valenti, Frederick Walter, Christopher Johns-Krull, Joanna Brown, Jeffrey Linsky, Melissa McClure, David Ardila, Hervé Abgrall, Thomas Bethell, Gaitee Hussain, and Hao Yang

Ingleby et al. 2011 The Astrophysical Journal 743 105.

  • Provider: AAS Journals

Caption: Figure 6.

Spectrally resolved H 2 line profile. The dot-dashed line shows the flux-weighted average of four H 2 lines observed with the COS G130M grating. These lines result from the (1–2) R(6) and (1–2) P(5) Lyα pumping transitions and are found in a narrow wavelength region observed with a single grating. The shaded region shows the predicted line emission originating in a Keplerian disk with inclination of 68°, inner radius R 1 = 1–20  R *, and outer radius R 2 = 450–500  R *. The predicted line fluxes are convolved with the COS line-spread function to account for instrumental effects.

Other Images in This Article
Image in this article
Image in this article
Image in this article
Image in this article
Image in this article
Image in this article
Image in this article
Image in this article
Copyright and Terms & Conditions