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Near-Infrared, Adaptive Optics Observations of the T Tauri Multiple-Star System | | E. Furlan
; W. J. Forrest
; D. M. Watson
; K. I. Uchida
; B. R. Brandl
; L. D. Keller
; T. L. Herter
; | | Date: |
19 Jul 2003 | | Journal: | Astrophys.J. 596 (2003) L87-L90; Erratum-ibid. 599 (2003) L117 | | Subject: | astro-ph | | Affiliation: | 1,3), L. D. Keller (1,4), T. L. Herter ( CRSR, Cornell University, Ithaca, NY, Department of Physics and Astronomy, University of Rochester, NY, Sterrewacht Leiden, The Netherlands, Department of Physics, Ithaca College, Ithaca, NY | | Abstract: | With high-angular-resolution, near-infrared observations of the young stellar object T Tauri at the end of 2002, we show that, contrary to previous reports, none of the three infrared components of T Tau coincide with the compact radio source that has apparently been ejected recently from the system (Loinard, Rodriguez, and Rodriguez 2003). The compact radio source and one of the three infrared objects, T Tau Sb, have distinct paths that depart from orbital or uniform motion between 1997 and 2000, perhaps indicating that their interaction led to the ejection of the radio source. The path that T Tau Sb took between 1997 and 2003 may indicate that this star is still bound to the presumably more massive southern component, T Tau Sa. The radio source is absent from our near-infrared images and must therefore be fainter than K = 10.2 (if located within 100 mas of T Tau Sb, as the radio data would imply), still consistent with an identity as a low-mass star or substellar object. | | Source: | arXiv, astro-ph/0307355 | | Services: | Forum | Review | PDF | Favorites | |
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