Universität zu Köln

Bergin, E. A., Hogerheijde, M. R., Brinch, C., Fogel, J., Yildiz, U. A., Kristensen, L. E., van Dishoeck, E. F., Bell, T. A., Blake, G. A., Cernicharo, J., Dominik, C., Lis, D., Melnick, G., Neufeld, D., Panic, O., Pearson, J. C., Bachiller, R., Baudry, A., Benedettini, M., Benz, A. O., Bjerkeli, P., Bontemps, S., Braine, J., Bruderer, S., Caselli, P., Codella, C., Daniel, F., di Giorgio, A. M., Doty, S. D., Encrenaz, P., Fich, M., Fuente, A., Giannini, T., Goicoechea, J. R., de Graauw, Th, Helmich, F., Herczeg, G. J., Herpin, F., Jacq, T., Johnstone, D., Jorgensen, J. K., Larsson, B., Liseau, R., Marseille, M., Mc Coey, C., Nisini, B., Olberg, M., Parise, B., Plume, R., Risacher, C., Santiago-Garcia, J., Saraceno, P., Shipman, R., Tafalla, M., van Kempen, T. A., Visser, R., Wampfler, S. F., Wyrowski, F., van der Tak, F., Jellema, W., Tielens, A. G. G. M., Hartogh, P., Stuetzki, J. and Szczerba, R. ORCID: 0000-0003-2886-4460 (2010). Sensitive limits on the abundance of cold water vapor in the DM Tauri protoplanetary disk. Astron. Astrophys., 521. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 0004-6361

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Abstract

We performed a sensitive search for the ground-state emission lines of ortho-and para-water vapor in the DM Tau protoplanetary disk using the Herschel/HIFI instrument. No strong lines are detected down to 3 sigma levels in 0.5 km s(-1) channels of 4.2 mK for the 1(10)-1(01) line and 12.6 mK for the 1(11)-0(00) line. We report a very tentative detection, however, of the 1(10)-1(01) line in the wide band spectrometer, with a strength of T-mb = 2.7 mK, a width of 5.6 km s(-1) and an integrated intensity of 16.0 mK km s(-1). The latter constitutes a 6 sigma detection. Regardless of the reality of this tentative detection, model calculations indicate that our sensitive limits on the line strengths preclude efficient desorption of water in the UV illuminated regions of the disk. We hypothesize that more than 95-99% of the water ice is locked up in coagulated grains that have settled to the midplane.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Bergin, E. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hogerheijde, M. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Brinch, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fogel, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Yildiz, U. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kristensen, L. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED van Dishoeck, E. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bell, T. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Blake, G. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cernicharo, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dominik, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lis, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Melnick, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Neufeld, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Panic, O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pearson, J. C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bachiller, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Baudry, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Benedettini, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Benz, A. O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bjerkeli, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bontemps, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Braine, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bruderer, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Caselli, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Codella, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Daniel, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED di Giorgio, A. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Doty, S. D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Encrenaz, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fich, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fuente, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Giannini, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Goicoechea, J. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED de Graauw, Th UNSPECIFIED UNSPECIFIED UNSPECIFIED Helmich, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Herczeg, G. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Herpin, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jacq, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Johnstone, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jorgensen, J. K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Larsson, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Liseau, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Marseille, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mc Coey, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Nisini, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Olberg, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Parise, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Plume, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Risacher, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Santiago-Garcia, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Saraceno, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Shipman, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tafalla, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED van Kempen, T. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Visser, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wampfler, S. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wyrowski, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED van der Tak, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jellema, W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tielens, A. G. G. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hartogh, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Stuetzki, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Szczerba, R. UNSPECIFIED orcid.org/0000-0003-2886-4460 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-494699
DOI:	10.1051/0004-6361/201015104
Journal or Publication Title:	Astron. Astrophys.
Volume:	521
Date:	2010
Publisher:	EDP SCIENCES S A
Place of Publication:	LES ULIS CEDEX A
ISSN:	0004-6361
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PLANET-FORMING REGION; CIRCUMSTELLAR DISKS; H2O; STARS; DUST; MOLECULES; SPECTRA; GAS; DESORPTION; EVOLUTION Multiple languages Astronomy & Astrophysics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/49469