Deuterium-bearing molecules in cold and warm dense interstellar clouds

Journal of King Saud University - Science - Tập 21 - Trang 85-92 - 2009
Magdy Y. Amin1, Ayman S. Kordi1
1Physics and Astronomy Department, College of Science, King Saud University, Riyadh, Saudi Arabia

Tài liệu tham khảo

Adams, 1985, Laboratory studies of the reactions of HCO(+) (and DCO/+/) and N2H(+) (and N2D/+/) with D (and H) atoms – Interstellar implications, Astrophysical Journal, 294, L63, 10.1086/184510 Amin, 1999, Gas-phase chemistry of the star forming region W3 IRS4, Astrophysics and Space Science, 260, 405, 10.1023/A:1001736930108 Amin, 2001, Gas-phase shock chemistry of the young bipolar outflow L1157, New Astronomy, 6, 393, 10.1016/S1384-1076(01)00067-7 Bell, 1988, A study of C3HD in cold interstellar clouds, Astrophysical Journal, 326, 924, 10.1086/166150 Caselli, 2002, Deuterium fractionation on interstellar grains studied with modified rate equations and a Monte Carlo approach, Planetary and Space Science, 50, 1257, 10.1016/S0032-0633(02)00092-2 Ceccarelli, 1998, Detection of doubly deuterated formaldehyde towards the low-luminosity protostar IRAS 16293-2422, Astronomy and Astrophysics, 338, L43 Ceccarelli, 2001, Extended D2CO emission: the smoking gun of grain surface-chemistry, Astronomy and Astrophysics, 372, 998, 10.1051/0004-6361:20010559 Ceccarelli, 2002, The puzzling detection of D2CO in the molecular cloud L1689N, Astronomy and Astrophysics, 381, L17, 10.1051/0004-6361:20011547 Chastaing, 2001, Rate coefficients for the reactions of C(3PJ) atoms with C2H2, C2H4, CH3CCH and H2CCCH2 at temperatures down to 15K, Astronomy and Astrophysics, 365, 241, 10.1051/0004-6361:20000026 Combes, 1985, Detection of interstellar CCD, Astronomy and Astrophysics, 147, L25, L26 Gerin, 1992, Interstellar detection of deuterated methyl acetylene, Astronomy and Astrophysics, 253, L29 Hatchell, 1998, The DCN/HCN abundance ratio in hot molecular cores, Astronomy and Astrophysics, 332, 695 Helmich, 1997, Physical and chemical variations within the W3 star-forming region. II. The 345GHz spectral line survey, A&A Supplement series, 124, 205, 10.1051/aas:1997357 Henkel, 1987, Deuterated water in Orion-KL and NGC7538, Astronomy and Astrophysics, 182, 299 Herbst, 1986, Synthesis of complex molecules in dense interstellar clouds via gas-phase chemistry – model update and sensitivity analysis, Monthly Notices of the Royal Astronomical Society, 222, 689, 10.1093/mnras/222.4.689 Herbst, 1987, Ion-molecule calculation of the abundance ratio of CCD to CCH in dense interstellar clouds, Astrophysical Journal, 312, 351, 10.1086/164880 Howe, 1994, Observations of deuterated cyanoacetylene in dark clouds, Monthly Notices of the Royal Astronomical Society, 267, 59, 10.1093/mnras/267.1.59 Larsson, 1996, Dissociative recombination of H2D+ and the cosmic abundance of deuterium, Astronomy and Astrophysics, 309, L1 Le Teuff, 2000, The UMIST database for astrochemistry 1999, Astronomy and Astrophysics Supplement, 146, 157, 10.1051/aas:2000265 Linsky, 1995, Deuterium and the local interstellar medium properties for the procyon and capella lines of sight, Astrophysical Journal, 451, 335, 10.1086/176223 Lis, 2002, Detection of triply deuterated ammonia in the barnard 1 cloud, The Astrophysical Journal, 571, L55, 10.1086/341132 Loinard, 2001, Doubly deuterated molecular species in protostellar environments, The Astrophysical Journal, 552, L163, 10.1086/320331 Loren, 1985, High-excitation lines of deuterated formaldehyde (HDCO) in the Orion Molecular Cloud, Astrophysical Journal, 299, 947, 10.1086/163761 MacLeod, 1981, Detection of deuterated cyanodiacetylene/DC5N/ in Taurus Molecular Cloud 1, Astrophysical Journal, 251, L33, 10.1086/183687 Mauersberger, 1988, Deuterated methanol in Orion, Astronomy and Astrophysics, 194, L1 Millar, 2002, Modeling deuterium fractionation in interstellar clouds, Planetary and Space Science, 50, 1189, 10.1016/S0032-0633(02)00082-X Millar, 1989, Deuterium fractionation in dense interstellar clouds, Astrophysical Journal, 340, 906, 10.1086/167444 Minowa, 1997, Laboratory microwave spectroscopy of HDCS and its astronomical detection toward TMC-1, Astrophysical Journal Letters, 491, L63, 10.1086/311052 Parise, 2002, Detection of doubly-deuterated methanol in the solar-type protostar IRAS 16293-2422, Astronomy and Astrophysics, 393, L49, 10.1051/0004-6361:20021131 Penzias, 1979, Interstellar HCN, HCO/+/, and the galactic deuterium gradient, Astrophysical Journal, 228, 430, 10.1086/156862 Roberts, 2000, Modelling of deuterium chemistry and its application to molecular clouds, Astronomy and Astrophysics, 361, 388 Roberts, 2000, Gas-phase formation of doubly-deuterated species, Astronomy and Astrophysics, 364, 780 Robets, 2002, A survey of[HDCO]/[H2CO] and[DCN]/[HCN] ratios towards low-mass protostellar cores, Astronomy and Astrophysics, 381, 1026, 10.1051/0004-6361:20011596 Rodgers, 2001, Gas-phase production of NHD2 in L134N, The Astrophysical Journal, 553, 613, 10.1086/320987 Rodgers, 1996, The chemistry of deuterium in hot molecular cores, Monthly Notices of the Royal Astronomical Society, 280, 1046, 10.1093/mnras/280.4.1046 Roueff, 2000, Detection of doubly deuterated ammonia in L134N, Astronomy and Astrophysics, 354, L63 Schilke, 1992, A study of HCN, HNC and their isotopomers in OMC-1. I – Abundances and chemistry, Astronomy and Astrophysics, 256, 595 Shah, 2001, Deuterated ammonia in galactic protostellar cores, The Astrophysical Journal, 554, 933, 10.1086/321396 Tine, 2000, Deuterium fractionation in dense ammonia cores, Astronomy and Astrophysics, 356, 1039 Turner, 1989, Detection of interstellar C4D – implications for ion–molecule chemistry, Astrophysical Journal, 347, L39, 10.1086/185602 Turner, 1990, Detection of doubly deuterated interstellar formaldehyde (D2CO) – an indicator of active grain surface chemistry, The Astrophysical Journal, 362, L29, 10.1086/185840 Turner, 2001, Deuterated molecules in translucent and dark clouds, The Astrophysical Journal Supplement Series, 136, 579, 10.1086/322536 van der Tak, F.F.S., Schilke, P., Muller, H.S.P., 2002. A. A. 388, 53. Vrtilek, 1985, Laboratory and astronomical detection of the deuterated ethynyl radical CCD, Astrophysical Journal, 296, L35, 10.1086/184544 Walmsley, 1987, Deuterated ammonia in the Orion hot core, Astronomy and Astrophysics, 172, 311 Willacy, 1998, Desorption processes and the deuterium fractionation in molecular clouds, Monthly Notices of the Royal Astronomical Society, 298, 562, 10.1046/j.1365-8711.1998.01648.x Wootten, A., 1987. In: Vardya, M.S., Tarafdar, S.P. (Eds.). ASTROCHEMISTRY Proceedings of the IAU Symposium No. 120. Goa, India 1985. Dordrecht, Reidel, p. 311. Brown, 1981, Interstellar deuterium chemistry, Philosophical Transactions, 303A, 523, 10.1098/rsta.1981.0221