Figure 1 from Near-ultraviolet Excess in Slowly Accreting T Tauri Stars: Limits Imposed by Chromospheric Emission

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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 1.

STIS spectra of the WTTS RECX-1 (both north and south components, see Section 2.2), the CTTS RECX-11, and the dwarf standard star, HD 154363. All have K5–K6 spectral types but RECX-1 is no longer accreting while RECX-11 has ongoing accretion (Lawson et al. 2004; Sicilia-Aguilar et al. 2009; Jayawardhana et al. 2006). The spectra of RECX-1 and RECX-11 are remarkably similar, except for the stronger C ii λ2325 line in the CTTS. The Mg ii λ2800 doublet strength is comparable in the three sources (Section 4).

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