2004ApJ...616L.163R

Query : 2004ApJ...616L.163R

2004ApJ...616L.163R - Astrophys. J., 616, L163-L166 (2004/December-1)

Discovery of CO gas in the inner disk of TW Hydrae.

RETTIG T.W., HAYWOOD J., SIMON T., BRITTAIN S.D. and GIBB E.

Abstract (from CDS):

We report the detection of rovibrationally excited CO emission from the inner disk of the classical T Tauri star (cTTS) TW Hya. We observe ∼6x1021 g of CO gas with a rotational temperature of 430±40 K. The linearity of the excitation plot suggests that the CO is optically thin. Atypical for cTTSs, hot CO was not detected, implying that TW Hya has cleared its inner disk region out to a radial distance of ∼0.5 AU. We discuss implications for the structure of the disk as it relates to replenishment and planet formation.

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Journal keyword(s): Molecular Data - Stars: Planetary Systems: Protoplanetary Disks - Stars: Individual: Constellation Name: TW Hydrae

Simbad objects: 4

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Number of rows : 4
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* DQ Tau Or* 04 46 53.0575226016 +17 00 00.136127304 14.56 13.67 12.00 13.21   M1Ve 373 0
2 V* TW Hya TT* 11 01 51.9053285064 -34 42 17.033218380   11.94 10.50 10.626 9.18 K6Ve 2144 1
3 NAME TW Hya Association As* 11 01.9 -34 42           ~ 1018 0
4 HD 141569 Or* 15 49 57.7482550392 -03 55 16.341617064 7.22 7.20 7.12 7.00 7.04 A2VekB9mB9(_lB) 578 0

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