Abstract
The primordial atomic D/H ratio in the interstellar medium is ∼ 10−5. There is no known source in the Universe which produces atomic deuterium. Hence, the order of cosmic deuteration is similar to the primordial D/H ratio. Despite such low D/H ratio, many deuterated molecules are seen to be heavily fractionated compared to its hydrogenated counterpart. Interstellar chemistry and zero-point energy difference in deuterated species are the main cause of it. In this article, we discuss the deuterium fractionation of interstellar molecules under different molecular cloud condition, ranging from cold prestellar condition to hot protostar condition. We also discuss, how deuterium fractionation in interstellar molecules could be used as an evolutionary tracer of molecular clouds. As an example of an interstellar deuterated molecule, we discuss here an ALMA observation of deuterated formaldehyde in the low-mass protostar system HH212.
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References
Barrett, A.H., Lilly, A.E.: AJ 62, 5 (1957)
Bianchi, E., et al.: A&A 606, L7 (2017)
Caselli, C., Stantcheva, T., et al.: Plan. and space sci. 50, 1257 (2002)
Cazaux, S., Caselli, P., Spaans, M.: ApJ 741, L34 (2011)
Ceccarelli, C., Dominik, C.: A&A 440, 583 (2005)
Chen, H.-R., Liu, S.-Y., Su, Y.-N., Wang, M.-Y.: ApJ 743, 196 (2011)
Codella, C., et al.: A&A 568, L5 (2014)
Croswell, K., Dalgarno, A.: ApJ 289, 618 (1985)
Das, A., Majumdar, L., Chakrabarti, S.K., Sahu, D.: New Astron. 35, 53 (2015)
Das, A., Majumdar, L., Sahu, D., Gorai, P., Sivaraman, B., Chakrabarti, S.K.: ApJ 808, 21 (2015)
Das, A., Sahu, D., Majumdar, L., Chakrabarti, S.K.: MNRAS 455, 540–551 (2016)
Epstein, R.I., Lattimer, J.M., Schramm, D.N.: Nature 263, 198 (1976)
Fontani, F., Caselli, P., Crapsi, A., et al.: A&A 460, 709 (2006)
Fontani, F., Palau, A., Caselli, P., et al.: A&A 529, L7 (2011)
Furuya, K., Drozdovskaya, M.N., Visser, R., van Dishoeck, E.F., Walsh, C., Harsono, D., Hincelin, U., Taquet, V.: A&A 599, 40 (2017)
Herzberg, G.: Spectra of Diatomic Molecules, p. 496. Van Nostrand Reinhold, New York (1950)
Kraus, J.D.: Radio Astronomy, p. 101. Cygnus-Quasar, Powell (1986)
Lee, C.-F., Ho, P.T.P., Hirano, N., et al.: ApJ 659, 499 (2007)
Lee, C.-F., Hirano, N., Zhang, Q., Shang, H., Ho, P.T.P., Krasnopolsky, R.: ApJ 786, 114 (2014)
Lee, C.-F., Li, Z.-Y., Ho, P.T.P., Hirano, N., Zhang, Q., Shang, H.: ApJ 843, 27 (2017)
Lis, D.C., Roueff, E., Gerin, M., Phillips, T.G., Coudert, L.H., van der Tak, F.F.S., van der Tak, F.F.S., Schilke, P.: ApJ 571, L55 (2002)
Millar, T.J.: Plasma Sources Sci. Technol. 24, 043001, 31pp. (2015)
Parise, B., Ceccarelli, C., Tielens, A.G.G.M., Castets, A., Caux, E., Lefloch, B., Maret, S.: A& A 453, 949 (2006)
Penzias, A.A., Wilson, R.W.: ApJ 142, 419 (1965)
Persson, M.V., Jørgensen, J.K., van Dishoeck, E.F.: A&A 549, L3 (2013)
Persson, M.V., Jørgensen, J.K., van Dishoeck, E., Harsono, D.: ApJ 563, 74 (2014)
Pillai, T., Wyrowski, F., Hatchell, J., Gibb, A.G., Thompson, M.A.: A&A 467, 207 (2007)
Prodanovi’c, T., Fields, B.D.: Astrophys. J. 597, 48 (2003)
Reeves, H., Audouze, J., Fowler, W., Schramm, D.N.: ApJ 179, 909 (1973)
Roberts, H., Millar, T.J.: A&A 471, 849 (2007)
Sahu, D., Das, A., Majumdar, L., Chakrabarti, S.K.: New Astron. 38, 23 (2015)
Sahu, D., Minh, Y.-C., Lee, C.-F., et al.: MNRAS 475, 5322 (2018)
Spezzano, S., Caselli, P., Bizzocchi, L., Giuliano, B.M., Lattanzi, V.: A&A 606, 25pp. (2017)
Swings, P., Rosenfeld, L.: ApJ 86, 483 (1937)
Taquet, V., Ceccarelli, C., Kahane, C.: ApJ 748, L3 (2012)
Walmsley, C.M., Flower, D.R., Pineau Des Forêts, G.: A&A 418, 1035 (2004)
Weinreb, S., Barrett, A.H., Meeks M.L., Henry, J.C.: Nature 200, 829 (1963)
Wilson, R.W., Jefferts, K.B., Penzias, A.A.: ApJL 161, L43 (1970)
Acknowledgements
I want to thank my supervisors Dr. Ankan Das and Prof. Sandip K. Chakrabarti for introducing me into the subject- Astrochemistry. I appreciate the effort of the Editors, for giving me a chance to write in this Festschrift.
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Sahu, D. (2018). Role of Interstellar Molecules on Evolution of Cosmic Deuteration: An ALMA Observation as a Case in Point. In: Mukhopadhyay, B., Sasmal, S. (eds) Exploring the Universe: From Near Space to Extra-Galactic. Astrophysics and Space Science Proceedings, vol 53. Springer, Cham. https://doi.org/10.1007/978-3-319-94607-8_37
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