Abstract
This review discusses the evolution of the chemical composition of the molecular gas throughout the process of star formation. It covers the initial stages of cloud-core formation, gravitational collapse and the formation of the star, the effects of stellar radiation and outflows on the surrounding cloud, and the composition of the circumstellar disk. A brief overview of relevant chemical processes sets the stage. The ensuing evolution of the chemistry is governed by several competing timescales and by energy input by the young star(s). Special attention is given to the role of molecular freeze-out on dust grains and to deuterium fractionation in cold gas.
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References
Bachiller, R.: 1996, ARA&A 34, 111.
Bacmann, A., Lefloch, B., Ceccarelli, C., Steinacker, J., Castets, A. and Loinard, L.: 2003, ApJ 585, L55.
Beckwith, S.V.W. and Sargent, A.I.: 1996, Nature 383, 139.
Bergin, E.A., Neufeld, D.A. and Melnick, G.J.: 1998, ApJ 499, 777.
Bergin, E.A., Alves, J., Huard, T. and Lada, C.J.: 2002, ApJ 570, L101.
Bergin, E., Calvet, N., D’Alessio, P. and Herczeg, G.J.: 2003, ApJ 591, L159.
Bergin, E.A., Hartmann, L.W., Raymond, J.C. and Ballesteros-Paredes, J.: in press, ApJ 612, 921.
Caselli, P., van der Tak, F.F.S., Ceccarelli, C. and Bacmann, A.: 2003, A&A 403, L37.
Ceccarelli, C., Dominik, C., Lefloch, B., Caselli, P. and Caux, E.: 2004, ApJ 607, L51.
Churchwell, E.: 2002, ARA&A 40, 27.
Dalgarno, A.: 1987, in: G. Morfill and M.S. Schiler (eds.), NATO ASIC Proceedings of the 210: Physical Processes in Interstellar Clouds, Reidel, Dordrecht, p. 219.
Draine, B.T.: 1978, ApJS 36, 595.
Dutrey, A., Guilloteau, S. and Guelin, M.: 1997, A&A 317, L55.
Evans, N.J.: 1999, ARA&A 37, 311.
Hartmann, L., Ballesteros-Paredes, J. and Bergin, E.A.: 2001, ApJ 562, 852.
Jϕrgensen, J.K., Hogerheijde, M.R., Blake, G.A., van Dishoeck, E.F., Mundy, L.G. and Schöier, F.L.: 2004, A&A 415, 1021.
Jϕrgensen, J.K., Schöier, F.L. and van Dishoeck, E.F.: 2004, A&A 416, 603.
Kuiper, T.B.H., Langer, W.D. and Velusamy, T.: 1996, ApJ 468, 761.
Kurtz, S., Cesaroni, R., Churchwell, E., Hofner, P. and Walmsley, C.M.: 2000, in: V. Mannings, A.P. Boss and S.S. Russell (eds.), Protostars and Planets IV, Tucson, University of Arizona Press, p.~299.
Langer, W.D., van Dishoeck, E.F., Bergin, E.A., Blake, G.A., Tielens, A.G.G.M., Velusamy, T. and Whittet, D.C.B.: 2000, in: V. Mannings, A.P. Boss and S.S. Russell (eds.), Protostars and Planets IV, Tucson, University of Arizona Press, p. 29.
Le Teuff, Y.H., Millar, T.J. and Markwick, A.J.: 2000, A&AS 146, 157.
Lis, D.C., Roueff, E., Gerin, M., Phillips, T.G., Coudert, L.H., van der Tak, F.F.S. and Schilke, P.: 2002, ApJ 571, L55.
Lucas, R. and Liszt, H.S.: 1997, in: E.F. van Dishoeck (ed.), Proceedings of the IAU Symposium 178, Molecules in Astrophysics: Probes and Processes, Kluwer Academic Publishers, Dordrecht, p.~421.
Meyer, D.M.: 1997, in: E.F. van Dishoeck (ed.), Proceedings of the IAU Symposium 178, Molecules in Astrophysics: Probes and Processes, Kluwer Academic Publishers, Dordrecht, p. 407.
Olano, C.A., Walmsley, C.M. and Wilson, T.L.: 1988, A&A 196, 194.
Parise, B., Castets, A., Herbst, E., Caux, E., Ceccarelli, C., Mukhopadhyay, I. and Tielens, A.G.G.M.: 2004, A&A 416, 159.
Qi, C.: 2001, PhD Thesis, California Institute of Technology.
Ruffle, D.P., Rae, J.G.L., Pilling, M.J., Hartquist, T.W. and Herbst, E.: 2002, A&A 381, L13.
Schilke, P., Walmsley, C.M., Pineau des Forets, G. and Flower, D.R.: 1997, A&A 321, 293.
Schutte, W.A.: 1997, in: J.M. Greenberg (ed.), NATO ASIC Proceedings of the 487: The Cosmic Dust Connection, Kluwer Academic Publishers, Dordrecht, p. 177.
Semenov, D., Wiebe, D. and Henning, T.: 2004, A&A 417, 93.
van der Tak, F.F.S., van Dishoeck, E.F. and Caselli, P.: 2000, A&A 361, 327.
van der Tak, F.F.S., Schilke, P., Müller, H.S.P., Lis, D.C., Phillips, T.G., Gerin, M. and Roueff, E.: 2002, A&A 388, L53.
van Dishoeck, E.F.: 1988, in: R.D. Wolstencroft and W.B. Burton (eds.), Millimetre and Submillimetre Astronomy, Kluwer Academic Publishers, Dordrecht, p. 117.
van Dishoeck, E.F. and Blake, G.A.: 1998, ARA&A 36, 317.
van Dishoeck, E.F. and Hogerheijde, M.R.: 1999, in: C.J. Lada and N.D. Kylafis (eds.), NATO ASIC Proceedings of the 540: The Origin of Stars and Planetary Systems, Kluwer Academic Publishers, Dordrecht, p. 97.
van Zadelhoff, G.-J., van Dishoeck, E.F., Thi, W.-F. and Blake, G.A.: 2001, A&A 377, 566.
Wiebe, D., Semenov, D. and Henning, T.: 2003, A&A 399, 197.
Willacy, K., Langer, W.D. and Velusamy, T.: 1998, ApJ 507, L171.
Williams, D.A.: 1993, in: T.J. Miller and D.A. Williams (eds.), Dust and Chemistry in Astronomy, Institute of Physics Publishing, Philadelphia, p. 143.
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Hogerheijde, M.R. Chemical Evolution of Protostars. Astrophys Space Sci 295, 179–187 (2005). https://doi.org/10.1007/s10509-005-3684-z
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DOI: https://doi.org/10.1007/s10509-005-3684-z