2003ApJ...596L..87F


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.15CEST07:56:30

2003ApJ...596L..87F - Astrophys. J., 596, L87-L90 (2003/October-2)

Near-infrared, adaptive optics observations of the T Tauri multiple-star system.

FURLAN E., FORREST W.J., WATSON D.M., UCHIDA K.I., BRANDL B.R., KELLER L.D. and HERTER T.L.

Abstract (from CDS):

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 seem to coincide with the compact radio source that has apparently been ejected recently from the system (Loinard, Rodríguez, & Rodríguez). The compact radio source and the infrared object it has previously been identified with, T Tau Sb, have distinct paths that departed 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 (if indeed distinct from T Tau Sb) 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.

Abstract Copyright:

Journal keyword(s): Astrometry - Stars: Binaries: Close - Infrared: Stars - Instrumentation: Adaptive Optics - Stars: Individual: Constellation Name: T Tauri - Stars: Pre-Main-Sequence

Nomenclature: [SSZ84] T Tau Sc.

Errata: erratum vol. 599, p. L117 (2003)

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 283389 * 04 09 48.1485812735 +27 24 10.397919172   10.78 9.49     K2 5 0
2 NAME T Tau Sc Rad 04 21 59.423 +19 32 06.31           ~ 10 0
3 V* T Tau TT* 04 21 59.4323326335 +19 32 06.439974179   11.22 10.12 9.80   K0IV/Ve 1339 1
4 V* UX Tau A TT* 04 30 03.9931880444 +18 13 49.476948664   12.92 11.15     K2Ve 333 0
5 V* UX Tau Or* 04 30 03.99626 +18 13 49.4355 11.23 11.84 10.80 9.83 9.05 K2Ve+M1Ve 319 0
6 V* RW Aur TT* 05 07 49.5662483 +30 24 05.177426   10.86 9.60 9.95   K1/5e+K5e 728 0

    Equat.    Gal    SGal    Ecl

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2021.04.15-07:56:30

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