Rotational excitation of mono- and doubly-deuterated water by hydrogen molecules

被引：47

作者：

Faure, A. ^{[1
]}

Wiesenfeld, L. ^{[1
]}

Scribano, Y. ^{[2
]}

Ceccarelli, C. ^{[1
]}

机构：

[1] UJF Grenoble 1, CNRS INSU, IPAG, UMR 5274, F-38041 Grenoble, France

[2] Univ Bourgogne, CNRS, Lab Interdisciplinaire Carnot Bourgogne, UMR 5209, F-21078 Dijon, France

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2012年 / 420卷 / 01期

关键词：

molecular data; molecular processes; stars: formation; ISM: molecules; INTERSTELLAR HEAVY-WATER; HERSCHEL OBSERVATIONS; SPECTRAL SURVEYS; HDO; TEMPERATURE; ENERGY; H2O; H-2;

D O I：

10.1111/j.1365-2966.2011.20081.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Rate coefficients for rotational transitions in HDO and D2O induced by H-2 collisions below 300 K are presented. Calculations have been performed at the close-coupling and coupled-states levels with the deuterated variants of the H2O-H-2 interaction potential of Valiron et al. The HDO-H-2 and D2O-H-2 rate coefficients are compared to the corresponding rate coefficients for HDO-He and H2O-H-2, respectively. Significant differences are observed. In particular the new HDO rate coefficients are found to be significantly larger (by up to three orders of magnitude) than the corresponding HDO-He rate coefficients. The impact of the new HDO rate coefficients is examined with the help of non-LTE radiative transfer calculations. A number of potential HDO maser lines are finally identified, in particular the 80.6 GHz (1(1,0)-1(1,1)) transition.

引用

页码：699 / 704

页数：6

共 33 条

[1] Charge-Transfer Energy in the Water-Hydrogen Molecular Aggregate Revealed by Molecular-Beam Scattering Experiments, Charge Displacement Analysis, and ab Initio Calculations [J].

Belpassi, Leonardo ;

Reca, Michael L. ;

Tarantelli, Francesco ;

Roncaratti, Luiz F. ;

Pirani, Fernando ;

Cappelletti, David ;

Faure, Alexandre ;

Scribano, Yohann .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (37) :13046-13058

[2] Herschel observations of EXtra-Ordinary Sources (HEXOS): The present and future of spectral surveys with Herschel/ HIFI [J].

Bergin, E. A. ;

Phillips, T. G. ;

Comito, C. ;

Crockett, N. R. ;

Lis, D. C. ;

Schilke, P. ;

Wang, S. ;

Bell, T. A. ;

Blake, G. A. ;

Bumble, B. ;

Caux, E. ;

Cabrit, S. ;

Ceccarelli, C. ;

Cernicharo, J. ;

Daniel, F. ;

de Graauw, Th. ;

Dubernet, M. -L. ;

Emprechtinger, M. ;

Encrenaz, P. ;

Falgarone, E. ;

Gerin, M. ;

Giesen, T. F. ;

Goicoechea, J. R. ;

Goldsmith, P. F. ;

Gupta, H. ;

Hartogh, P. ;

Helmich, F. P. ;

Herbst, E. ;

Joblin, C. ;

Johnstone, D. ;

Kawamura, J. H. ;

Langer, W. D. ;

Latter, W. B. ;

Lord, S. D. ;

Maret, S. ;

Martin, P. G. ;

Melnick, G. J. ;

Menten, K. M. ;

Morris, P. ;

Mueller, H. S. P. ;

Murphy, J. A. ;

Neufeld, D. A. ;

Ossenkopf, V. ;

Pagani, L. ;

Pearson, J. C. ;

Perault, M. ;

Plume, R. ;

Roelfsema, P. ;

Qin, S. -L. ;

Salez, M. .

ASTRONOMY & ASTROPHYSICS, 2010, 521

[3] Discovery of interstellar heavy water [J].

Butner, H. M. ;

Charnley, S. B. ;

Ceccarelli, C. ;

Rodgers, S. D. ;

Pardo, J. R. ;

Parise, B. ;

Cernicharo, J. ;

Davis, G. R. .

ASTROPHYSICAL JOURNAL, 2007, 659 (02) :L137-L140

[4] Theoretical H2CO emission from protostellar envelopes [J].

Ceccarelli, C ;

Maret, S ;

Tielens, AGGM ;

Castets, A ;

Caux, E .

ASTRONOMY & ASTROPHYSICS, 2003, 410 (02) :587-595

[5] THE FOGGY DISKS SURROUNDING AeBe STARS: A THEORETICAL STUDY OF THE HDO LINES [J].

Ceccarelli, C. ;

Cernicharo, J. ;

Menard, F. ;

Pinte, C. .

ASTROPHYSICAL JOURNAL LETTERS, 2010, 725 (02) :L135-L139

[6] Herschel spectral surveys of star- forming regions Overview of the 555-636 GHz range [J].

Ceccarelli, C. ;

Bacmann, A. ;

Boogert, A. ;

Caux, E. ;

Dominik, C. ;

Lefloch, B. ;

Lis, D. ;

Schilke, P. ;

van der Tak, F. ;

Caselli, P. ;

Cernicharo, J. ;

Codella, C. ;

Comito, C. ;

Fuente, A. ;

Baudry, A. ;

Bell, T. ;

Benedettini, M. ;

Bergin, E. A. ;

Blake, G. A. ;

Bottinelli, S. ;

Cabrit, S. ;

Castets, A. ;

Coutens, A. ;

Crimier, N. ;

Demyk, K. ;

Encrenaz, P. ;

Falgarone, E. ;

Gerin, M. ;

Goldsmith, P. F. ;

Helmich, F. ;

Hennebelle, P. ;

Henning, T. ;

Herbst, E. ;

Hily-Blant, P. ;

Jacq, T. ;

Kahane, C. ;

Kama, M. ;

Klotz, A. ;

Langer, W. ;

Lord, S. ;

Lorenzani, A. ;

Maret, S. ;

Melnick, G. ;

Neufeld, D. ;

Nisini, B. ;

Pacheco, S. ;

Pagani, L. ;

Parise, B. ;

Pearson, J. ;

Phillips, T. .

ASTRONOMY & ASTROPHYSICS, 2010, 521

[7]

Ceccarelli C., 2007, Protostars and Planets V, P47

[8] Heavy water around the L1448-mm protostar [J].

Codella, C. ;

Ceccarelli, C. ;

Nisini, B. ;

Bachiller, R. ;

Cernicharo, J. ;

Gueth, F. ;

Fuente, A. ;

Lefloch, B. .

ASTRONOMY & ASTROPHYSICS, 2010, 522

[9] Herschel observations of deuterated water towards Sgr B2(M) [J].

Comito, C. ;

Schilke, P. ;

Rolffs, R. ;

Lis, D. C. ;

Belloche, A. ;

Bergin, E. A. ;

Phillips, T. G. ;

Bell, T. A. ;

Crockett, N. R. ;

Wang, S. ;

Blake, G. A. ;

Caux, E. ;

Ceccarelli, C. ;

Cernicharo, J. ;

Daniel, F. ;

Dubernet, M. -L. ;

Emprechtinger, M. ;

Encrenaz, P. ;

Gerin, M. ;

Giesen, T. F. ;

Goicoechea, J. R. ;

Goldsmith, P. F. ;

Gupta, H. ;

Herbst, E. ;

Joblin, C. ;

Johnstone, D. ;

Langer, W. D. ;

Latter, W. D. ;

Lord, S. D. ;

Maret, S. ;

Martin, P. G. ;

Melnick, G. J. ;

Menten, K. M. ;

Morris, P. ;

Mueller, H. S. P. ;

Murphy, J. A. ;

Neufeld, D. A. ;

Ossenkopf, V. ;

Pearson, J. C. ;

Perault, M. ;

Plume, R. ;

Qin, S. -L. ;

Schlemmer, S. ;

Stutzki, J. ;

Trappe, N. ;

van der Tak, F. F. S. ;

Vastel, C. ;

Yorke, H. W. ;

Yu, S. ;

Olberg, M. .

ASTRONOMY & ASTROPHYSICS, 2010, 521

[10]

Coutens A., 2011, A A UNPUB

← 1 2 3 4 →