2019ApJ...878L..37F

Query : 2019ApJ...878L..37F

2019ApJ...878L..37F - Astrophys. J., 878, L37-L37 (2019/June-3)

CO detected in CI Tau b: hot start implied by planet mass and MK.

FLAGG L., JOHNS-KRULL C.M., NOFI L., LLAMA J., PRATO L., SULLIVAN K., JAFFE D.T. and MACE G.

Abstract (from CDS):

We acquired high-resolution infrared spectra of CI Tau, the host star of one of the few young planet candidates amenable to direct spectroscopic detection. We confirm the planet's existence with a direct detection of CO in the planet's atmosphere. We also calculate a mass of 11.6 MJ based on the amplitude of its radial velocity variations. We estimate its flux contrast with its host star to get an absolute magnitude estimate for the planet of 8.17 in the K-band. This magnitude implies the planet formed via a "hot start" formation mechanism. This makes CI Tau b the youngest confirmed exoplanet as well as the first exoplanet around a T Tauri star with a directly determined, model-independent dynamical mass.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): planetary systems - planets and satellites: formation - stars: individual: CI Tau

Simbad objects: 16

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Number of rows : 16
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 2MASS J02495436-0558015 BD* 02 49 54.36624 -05 58 01.5816           L2 17 0
2 NAME V* V1069 Tau b Pl 04 18 51.7036254480 +17 23 16.582694856           K4 20 0
3 V* FW Tau TT* 04 29 29.703744 +26 16 53.06412       15.85   M5.5 143 0
4 V* V830 Tau TT* 04 33 10.0300557048 +24 33 43.255480860   13.91 12.08 11.30   M0-1 238 1
5 NAME V830 Tau b Pl 04 33 10.0300557048 +24 33 43.255480860           K7.5 37 0
6 NAME CI Tau b Pl 04 33 52.0143963264 +22 50 30.094090908           ~ 30 0
7 V* CI Tau Or* 04 33 52.0143963264 +22 50 30.094090908 14.97 15.09 13.80     K4IVe 422 1
8 * 51 Eri b Pl 04 37 36.1326090888 -02 28 24.775726260           ~ 238 0
9 * bet Pic b Pl 05 47 17.0876901 -51 03 59.441135           ~ 627 1
10 HD 95086b Pl 10 57 03.0215719872 -68 40 02.449216128           ~ 127 1
11 TWA 27 LM* 12 07 33.4675524840 -39 32 54.016625184     19.95 17.99 15.88 M8IVe 376 0
12 HD 116434C BD* 13 24 36.13 -51 30 16.7           L5-7 123 1
13 RX J1609.5-2105B LM* 16 09 30.377 -21 04 56.97           ~ 123 0
14 NAME GSC 06214-00210B LM* 16 21 54.678 -20 43 11.33           ~ 102 0
15 NAME ROXs 42Bb Pl 16 31 14.93 -24 32 43.7           M8-L0 62 0
16 ROXs 42B TT* 16 31 15.0183260016 -24 32 43.715044896     14.27 13.03 11.72 M0 69 0

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