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Title: THE GAS/DUST RATIO OF CIRCUMSTELLAR DISKS: TESTING MODELS OF PLANETESIMAL FORMATION

Abstract

We present high-resolution, near-infrared NIRSPEC observations of CO absorption toward six class II T Tauri stars: AA Tau, DG Tau, IQ Tau, RY Tau, CW Tau, and Haro 6-5b. {sup 12}CO overtone absorption lines originating from the circumstellar disk of each object were used to calculate line-of-sight gas column densities toward each source. We measured the gas/dust ratio as a function of disk inclination, utilizing measured visual extinctions and inclinations for each star. The majority of our sources show further evidence for a correlation between the gas/dust column density ratio and disk inclination similar to that found by Rettig et al.

Authors:
 [1];  [2]; ; ;  [3];  [4]
  1. New York Center for Astrobiology, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180-3590 (United States)
  2. Department of Physics and Astronomy, University of Missouri-St. Louis, 8001 Natural Bridge Road, St. Louis, MO 63121 (United States)
  3. Center for Astrophysics, University of Notre Dame, Notre Dame, IN 46556 (United States)
  4. Department of Physics and Astronomy, Clemson University, Clemson, SC 29634-0978 (United States)
Publication Date:
OSTI Identifier:
22039277
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 754; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ABSORPTION; ABSORPTION SPECTRA; ASTRONOMY; ASTROPHYSICS; CARBON 12; CARBON MONOXIDE; CORRELATIONS; COSMIC DUST; COSMIC GASES; DENSITY; INCLINATION; NEAR INFRARED RADIATION; PLANETS; PROTOSTARS; RESOLUTION; SATELLITES; T TAURI STARS

Citation Formats

Horne, David, Gibb, Erika, Rettig, Terrence W, Tilley, David, Balsara, Dinshaw, and Brittain, Sean. THE GAS/DUST RATIO OF CIRCUMSTELLAR DISKS: TESTING MODELS OF PLANETESIMAL FORMATION. United States: N. p., 2012. Web. doi:10.1088/0004-637X/754/1/64.
Horne, David, Gibb, Erika, Rettig, Terrence W, Tilley, David, Balsara, Dinshaw, & Brittain, Sean. THE GAS/DUST RATIO OF CIRCUMSTELLAR DISKS: TESTING MODELS OF PLANETESIMAL FORMATION. United States. https://doi.org/10.1088/0004-637X/754/1/64
Horne, David, Gibb, Erika, Rettig, Terrence W, Tilley, David, Balsara, Dinshaw, and Brittain, Sean. 2012. "THE GAS/DUST RATIO OF CIRCUMSTELLAR DISKS: TESTING MODELS OF PLANETESIMAL FORMATION". United States. https://doi.org/10.1088/0004-637X/754/1/64.
@article{osti_22039277,
title = {THE GAS/DUST RATIO OF CIRCUMSTELLAR DISKS: TESTING MODELS OF PLANETESIMAL FORMATION},
author = {Horne, David and Gibb, Erika and Rettig, Terrence W and Tilley, David and Balsara, Dinshaw and Brittain, Sean},
abstractNote = {We present high-resolution, near-infrared NIRSPEC observations of CO absorption toward six class II T Tauri stars: AA Tau, DG Tau, IQ Tau, RY Tau, CW Tau, and Haro 6-5b. {sup 12}CO overtone absorption lines originating from the circumstellar disk of each object were used to calculate line-of-sight gas column densities toward each source. We measured the gas/dust ratio as a function of disk inclination, utilizing measured visual extinctions and inclinations for each star. The majority of our sources show further evidence for a correlation between the gas/dust column density ratio and disk inclination similar to that found by Rettig et al.},
doi = {10.1088/0004-637X/754/1/64},
url = {https://www.osti.gov/biblio/22039277}, journal = {Astrophysical Journal},
issn = {0004-637X},
number = 1,
volume = 754,
place = {United States},
year = {Fri Jul 20 00:00:00 EDT 2012},
month = {Fri Jul 20 00:00:00 EDT 2012}
}