2017ApJ...846L..26W

Query : 2017ApJ...846L..26W

2017ApJ...846L..26W - Astrophys. J., 846, L26-L26 (2017/September-2)

An ALMA dynamical mass estimate of the proposed planetary-mass companion FW Tau C.

WU Y.-L. and SHEEHAN P.D.

Abstract (from CDS):

Dynamical mass estimates down to the planet-mass regime can help to understand planet formation. We present Atacama Large Millimeter/submillimeter Array (ALMA) 1.3 mm observations of FW Tau C, a proposed ∼10 MJup planet-mass companion at ∼330 au from the host binary FW Tau AB. We spatially and spectrally resolve the accretion disk of FW Tau C in 12CO (2-1). By modeling the Keplerian rotation of gas, we derive a dynamical mass of ∼0.1 M☉. Therefore, FW Tau C is unlikely a planet, but rather a low-mass star with a highly inclined disk. This also suggests that FW Tau is a triple system consisting of three ∼0.1 M☉ stars.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): accretion, accretion disks - planets and satellites: individual FW Tau C - stars: individual: FW Tau - techniques: interferometric - techniques: interferometric

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* FW Tau TT* 04 29 29.703744 +26 16 53.06412       15.85   M5.5 143 0
2 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1453 0
3 RX J0433.6+2906 BLL 04 33 37.82985981 +29 05 55.4770576   19.0 17.80 17.06   ~ 181 1
4 QSO B0507+179 Bla 05 10 02.36912937 +18 00 41.5815635   20.0 19.0 19.09   ~ 470 1
5 OTS 44 Y*O 11 10 09.34392 -76 32 17.8512           M9.5+ 70 0

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