Warm HCN, C2H2, and CO in the Disk of GV Tau

Erika Gibb; K. A. Van Brunt; S. D. Brittain; T W Rettig

doi:10.1086/513502

Warm HCN, C2H2, and CO in the Disk of GV Tau

Erika Gibb, K. A. Van Brunt, S. D. Brittain, T W Rettig

University of Missouri-St. Louis

Research output: Contribution to journal › Article › peer-review

Abstract

We present the first high-resolution, ground-based observations of HCN and C2H2 toward the T Tauri binary star system GV Tau. We detected strong absorption due to HCN ν3 and weak C2H2 [ν3 and ν2 + (ν4 + ν5)img1.gif] absorption toward the primary (GV Tau S) but not the infrared companion. We also report CO column densities and rotational temperatures, and present abundances relative to CO of HCN/CO ~ 0.6% and C2H/CO ~ 1.2% and an upper limit for CH4/CO < 0.37% toward GV Tau S. Neither HCN nor C2H2 were detected toward the infrared companion, and results suggest that abundances may differ between the two sources.

Original language	American English
Journal	The Astrophysical Journal
Volume	660
DOIs	https://doi.org/10.1086/513502
State	Published - May 10 2007

Disciplines

Astrophysics and Astronomy
Physics

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Cite this

@article{49582af7347e4cb59834fd75968751d0,

title = "Warm HCN, C2H2, and CO in the Disk of GV Tau",

abstract = " We present the first high-resolution, ground-based observations of HCN and C2H2 toward the T Tauri binary star system GV Tau. We detected strong absorption due to HCN ν3 and weak C2H2 [ν3 and ν2 + (ν4 + ν5)img1.gif] absorption toward the primary (GV Tau S) but not the infrared companion. We also report CO column densities and rotational temperatures, and present abundances relative to CO of HCN/CO ~ 0.6% and C2H/CO ~ 1.2% and an upper limit for CH4/CO < 0.37% toward GV Tau S. Neither HCN nor C2H2 were detected toward the infrared companion, and results suggest that abundances may differ between the two sources.",

author = "Erika Gibb and {Van Brunt}, {K. A.} and Brittain, {S. D.} and Rettig, {T W}",

year = "2007",

month = may,

day = "10",

doi = "10.1086/513502",

language = "American English",

volume = "660",

journal = "The Astrophysical Journal",

}

TY - JOUR

T1 - Warm HCN, C2H2, and CO in the Disk of GV Tau

AU - Gibb, Erika

AU - Van Brunt, K. A.

AU - Brittain, S. D.

AU - Rettig, T W

PY - 2007/5/10

Y1 - 2007/5/10

N2 - We present the first high-resolution, ground-based observations of HCN and C2H2 toward the T Tauri binary star system GV Tau. We detected strong absorption due to HCN ν3 and weak C2H2 [ν3 and ν2 + (ν4 + ν5)img1.gif] absorption toward the primary (GV Tau S) but not the infrared companion. We also report CO column densities and rotational temperatures, and present abundances relative to CO of HCN/CO ~ 0.6% and C2H/CO ~ 1.2% and an upper limit for CH4/CO < 0.37% toward GV Tau S. Neither HCN nor C2H2 were detected toward the infrared companion, and results suggest that abundances may differ between the two sources.

AB - We present the first high-resolution, ground-based observations of HCN and C2H2 toward the T Tauri binary star system GV Tau. We detected strong absorption due to HCN ν3 and weak C2H2 [ν3 and ν2 + (ν4 + ν5)img1.gif] absorption toward the primary (GV Tau S) but not the infrared companion. We also report CO column densities and rotational temperatures, and present abundances relative to CO of HCN/CO ~ 0.6% and C2H/CO ~ 1.2% and an upper limit for CH4/CO < 0.37% toward GV Tau S. Neither HCN nor C2H2 were detected toward the infrared companion, and results suggest that abundances may differ between the two sources.

U2 - 10.1086/513502

DO - 10.1086/513502

M3 - Article

VL - 660

JO - The Astrophysical Journal

JF - The Astrophysical Journal

ER -