THE INFLUENCE OF VARIATIONS OF ELEMENTAL COMPOSITION OF A GAS ON THE MOLECULAR KINETICS

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Abstract

The low efficiency of metal mixing in the interstellar gas preserves their spatial inhomogeneities for longer times. In this work, we study how the variations in the elemental composition affects the chemical evolution of the molecular gas, that cools down behind the supernovae shock fronts. We perform numerical simulations of the non-equilibrium chemical kinetics of a Lagrangian gas element experiencing the shockwaves travelling at 5–15 km/s velocities. We vary the chemical abundances of carbon and oxygen in range ±0.3 dex from the values typical for the ISM. We find significant differences in fractions of several molecular species, disproportionate with the variations in the abundances of the corresponding chemical elements. While these differences are remarkably higher than the variations of the given element abundances. We investigate how these changes in the molecular fractions depend on the properties of the gas, as well as on the external effects: gas density, ultraviolet flux, cosmic ray ionization rate and extinction. We find, for instance, that variations of oxygen abundance for δ[O/H] ~ ±0.3 dex of the Solar value, modify the water molecule fraction already by ~ 3–50 times. The differences are the most prominent for extinction values AV ~ 0.3–3. We discuss the importance of these findings for chemical kinetics in star-forming regions.

About the authors

O. P. Vorobyov

P. N. Lebedev Physical Institute of the Russian Academy of Sciences

Email: vorobev.op@phystech.edu
Moscow, Russia

E. O. Vasiliev

P. N. Lebedev Physical Institute of the Russian Academy of Sciences

Email: eugstar@mail.ru
Moscow, Russia

References

  1. M.A. de Avillez and M.-M. Mac Low, 581, 1047 (2002), arXiv:astro-ph/0208441.
  2. E.A. Karitskaya, N.G. Bochkarev, V.V. Shimansky, and G.A. Galazutdinov, in Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants, Proc. of a Conference held at University Campus, Vienna, Austria, 16–20 August 2010; edited by F. Kerschbaum, T. Lebzelter, and R. F. Wing (San Francisco: ASP Press, 2011), ASP Conf. Ser. 445, 335 (2011).
  3. N.G. Bochkarev, E.A. Karitskaya, V.V. Shimanskii, and G.A. Galazutdinov, Astron. Nachricht. 334(8), 835 (2013).
  4. L. Blitz and F.H. Shu, 238, 148 (1980).
  5. S.A. Khoperskov, E.O. Vasiliev, D.A. Ladeyschikov, A.M. Sobolev, and A.V. Khoperskov, Monthly Not. Roy. Astron. Soc. 455, 1782 (2016), arXiv:1508.04966 [astro-ph.GA].
  6. M. Chevance, M.R. Krumholz, A.F. McLeod, E.C. Ostriker, E.W. Rosolowsky, and A. Sternberg, in Protostars and Planets VII, Proc. of a Conference held 10–15 April 2023 at Kyoto, Japan; edited by S.-i. Inutsuka, Y. Aikawa, T. Muto, K. Tomida, and M. Tamura (San Francisco: ASP Press, 2023), ASP Conf. Ser. 534, 1 (2023), arXiv:2203.09570 [astro-ph.GA].
  7. E.O. Vasiliev and Y.A. Shchekinov, Astron. Rep. 60(10), 924 (2016).
  8. T.J. Satterfield, A.M. Katz, A.R. Sibley, G.M. MacAlpine, and A. Uomoto, Astron. J. 144(1), id. 27 (2012), arXiv:1205.5737 [astro-ph.SR].
  9. W. Baade and R. Minkowski, 119, 206 (1954).
  10. S. van den Bergh, 165, 457 (1971).
  11. M. Peimbert and S. van den Bergh, 167, 223 (1971).
  12. R.A. Chevalier and R.P. Kirshner, 233, 154 (1979).
  13. E.V. Gotthelf, B. Koralesky, L. Rudnick, T.W. Jones, U. Hwang, and R. Petre, Letters 552, L39 (2001), arXiv:astro-ph/0104161.
  14. R.A. Fesen, J.A. Zastrow, M.C. Hammell, J.M. Shull, and D.W. Silvia, 736(2), id. 109 (2011), arXiv:1105.3970 [astro-ph.GA].
  15. H. Itoh, Publ. Astron. Soc. Japan 33, 1 (1981).
  16. K.J. Borkowski and J.M. Shull, 348, 169 (1990).
  17. R.S. Sutherland and M.A. Dopita, 439, 381 (1995).
  18. D. Docenko and R.A. Sunyaev, Astron. and Astrophys. 509, id. A59 (2010), arXiv:0806.1801 [astro-ph].
  19. J. Rho, J.W. Hewitt, A. Boogert, M. Kaufman, and A. Gusdorf, 812, id. 44 (2015), arXiv:1508.07245 [astro-ph.GA].
  20. T.-Y. Tu, Y. Chen, and Q.-C. Liu, 978, id. 83 (2025), arXiv:2411.09138 [astro-ph.GA].
  21. P. Zhou, G.-Y. Zhang, X. Zhou, M. Arias, et al., 931, id. 144 (2022).
  22. T. Grassi, S. Bovino, D.R.G. Schleicher, J. Prieto, D. Seifried, E. Simoncini, and F.A. Gianturco, Monthly Not. Roy. Astron. Soc. 439, 2386 (2014).
  23. S.C.O. Glover, C. Federrath, M.M. Mac Low, and R.S. Klessen, Monthly Not. Roy. Astron. Soc. 404, 2 (2010), arXiv:0907.4081 [astro-ph.SR].
  24. D. Hollenbach and C.F. McKee, Suppl. 41, 555 (1979).
  25. S.C.O. Glover, 584, 331 (2003), arXiv:astro-ph/0210493.
  26. S.C.O. Glover and A.K. Jappsen, 666, 1 (2007), arXiv:0705.0182 [astro-ph].
  27. B.T. Draine, Suppl. 36, 595 (1978).
  28. H.J. Habing, Bull. Astron. Inst. Netherland 19, 421 (1968).
  29. B.T. Draine and F. Bertoldi, 468, 269 (1996), arXiv:astro-ph/9603032.
  30. J.S. Mathis, W. Rumpl, and K.H. Nordsieck, 217, 425 (1977).
  31. L. Spitzer, Jr. and M.G. Tomasko, 152, 971 (1968).
  32. A.E. Glassgold and W.D. Langer, 193, 73 (1974).
  33. A. Dalgarno, Proc. of the National Academy of Science 103(33), 12269 (2006).
  34. M. Padovani, D. Galli, and A.E. Glassgold, Astron. and Astrophys. 501, 619 (2009), arXiv:0904.4149 [astro-ph.SR].
  35. B.B. Nath, N. Gupta, and P.L. Biermann, Monthly Not. Roy. Astron. Soc. 425, L86 (2012), arXiv:1204.4239 [astro-ph.GA].
  36. D.A. Neufeld and M. G. Wolfire, 845, id. 163 (2017), arXiv:1704.03877 [astro-ph.GA].
  37. D.N. Kosenko, S.A. Balashev, P. Noterdaeme, J.K. Krogager, R. Srianand, and C. Ledoux, Monthly Not. Roy. Astron. Soc. 505, 3810 (2021), arXiv:2103.10676 [astro-ph.GA].
  38. S. Bialy, S. Belli, and M. Padovani, Astron. and Astrophys. 658, id. L13 (2022), arXiv:2111.06900 [astro-ph.GA].
  39. D.N. Kosenko and S.A. Balashev, Monthly Not. Roy. Astron. Soc. 525, 2820 (2023), arXiv:2309.01600 [astro-ph.GA].
  40. K.R. Sembach, J.C. Howk, R.S.I. Ryans, and F.P. Keenan, 528, 310 (2000), arXiv:astro-ph/9908051.
  41. N. Przybilla, M.-F. Nieva, and K. Butler, Letters 688, L103 (2008), arXiv:0809.2403 [astro-ph].
  42. K.V. Bychkov and S.B. Pikelner, Soviet Astron. Letters 1, 14 (1975).
  43. S. Cazaux, V. Cobut, M. Marseille, M. Spaans, and P. Caselli, Astron. and Astrophys. 522, id. A74 (2010), arXiv:1007.1061 [astro-ph.SR].
  44. H.C. van de Hulst, Optics of spherical particles, Ph.D. Thesis (Utrecht, 1946); Recherches Astronomiques de l’Observatoire d’Utrecht 11, 1 (1946).
  45. W.H. McCrea and D.McNally, Monthly Not. Roy. Astron. Soc. 121, 238 (1960).
  46. R.J. Gould and M. Harwit, 137, 694 (1963).
  47. D.J. Hollenbach, M.W. Werner, and E.E. Salpeter, 163, 165 (1971).
  48. D.A. Williams, T.W. Hartquist, and D.C.B. Whittet, Monthly Not. Roy. Astron. Soc. 258, 599 (1992).
  49. D.C.B. Whittet, P.A. Gerakines, A.G.G.M. Tielens, A.J. Adamson, et al., Letters 498, L159 (1998).
  50. K.M. Pontoppidan, E.F. van Dishoeck, and E. Dartois, Astron. and Astrophys. 426, 925 (2004), arXiv:astro-ph/0407316.
  51. T.I. Hasegawa, E. Herbst, and C.M. Leung, Suppl. 82, 167 (1992).
  52. S.B. Charnley, S.D. Rodgers, and P. Ehrenfreund, Astron. and Astrophys. 378, 1024 (2001).
  53. P. Caselli, T.I. Hasegawa, and E. Herbst, 408, 548 (1993).
  54. B.T. Draine, W.G. Roberge, and A. Dalgarno, 264, 485 (1983).
  55. I. Jiménez-Serra, P. Caselli, J. Martn-Pintado, and T.W. Hartquist, Astron. and Astrophys. 482, 549 (2008), arXiv:0802.0594 [astro-ph].
  56. A. Gusdorf, T. Giannini, D.R. Flower, B. Parise, R. Güsten, and L.E. Kristensen, Astron. and Astrophys. 532, id. A53 (2011), arXiv:1108.3692 [astro-ph.GA].
  57. D. Hollenbach and C.F. McKee, 342, 306 (1989).
  58. D.A. Neufeld and G.J. Melnick, 322, 266 (1987).
  59. D. Hollenbach, M.J. Kaufman, E.A. Bergin, and G.J. Melnick, 690, 1497 (2009), arXiv:0809.1642 [astro-ph].
  60. T.G. Phillips, E.F. van Dishoeck, and J. Keene, 399, 533 (1992).
  61. E.A. Bergin, G.J. Melnick, and D.A. Neufeld, 499, 777 (1998), arXiv:astro-ph/9803330.
  62. C.P. Dullemond, A. Juhasz, A. Pohl, F. Sereshti, R. Shetty, T. Peters, B. Commercon, and M. Flock, RADMC-3D: A multi-purpose radiative transfer tool, Astrophys. Source Code Library, record ascl:1202.015 (2012).
  63. E.B. Jenkins, 700, 1299 (2009), arXiv:0905.3173 [astro-ph.GA].
  64. D.C.B. Whittet, 710, 1009 (2010), arXiv:0912.3298 [astro-ph.GA].
  65. K. Kifonidis, T. Plewa, H.T. Janka, and E. Müller, Letters 531, L123 (2000), arXiv:astro-ph/9911183.
  66. L.B. Lucy, I.J. Danziger, C. Gouiffes, and P. Bouchet, Structure and Dynamics of the Interstellar Medium, Proc. of IAU Colloq. 120, held on the Occasion of Guido’s Jubilee in Granada, Spain, April 17–21, 1989; edited by G. Tenorio-Tagle, M. Moles, and J. Melnick (Berlin, Heidelberg, New York: Springer-Verlag, 1989), Lectures Notes in Physics 350, 164 (1989).
  67. P. Todini and A. Ferrara, Monthly Not. Roy. Astron. Soc. 325, 726 (2001), arXiv:astro-ph/0009176.
  68. T. Nozawa, T. Kozasa, H. Umeda, K. Maeda, and K. Nomoto, 598, 785 (2003), arXiv:astro-ph/0307108.
  69. S. Bianchi and R. Schneider, Monthly Not. Roy. Astron. Soc. 378, 973 (2007), arXiv:0704.0586 [astro-ph].
  70. B.B. Nath, T. Laskar, and J.M. Shull, 682, 1055 (2008), arXiv:0804.3472 [astro-ph].
  71. J.D. Slavin, E. Dwek, and A.P. Jones, Astrophys. J. 803, id. 7 (2015), arXiv:1502.00929 [astro-ph.GA].
  72. F. Kirchschlager, F.D. Schmidt, M.J. Barlow, E.L. Fogerty, A. Bevan, and F.D. Priestley, Monthly Not. Roy. Astron. Soc. 489, 4465 (2019), arXiv:1908.10875 [astro-ph.SR].
  73. J.D. Slavin, E. Dwek, M.-M. Mac Low, and A. S. Hill, Astrophys. J. 902, id. 135 (2020), arXiv:2009.01895 [astro-ph.HE].
  74. E.O. Vasiliev and Y.A. Shchekinov, Monthly Not. Roy. Astron. Soc. 527, 8755 (2024), arXiv:2308.03106 [astro-ph.GA].
  75. R.P.A. Bettens, H.H. Lee, and E. Herbst, Astrophys. J. 443, 664 (1995).
  76. E.A. Bergin, P.F. Goldsmith, R.L. Snell, and W D. Langer, Astrophys. J. 482, 285 (1997).
  77. P. Pratap, J E. Dickens, R.L. Snell, M.P. Miralles, E A. Bergin, W.M. Irvine, and F.P. Schloerb, Astrophys. J. 486, 862 (1997).
  78. R. Terzieva and E. Herbst, Astrophys. J. 501, 207 (1998).
  79. B.T. Draine, Astrophys. J. 241, 1021 (1980).
  80. M.J. Kaufman and D.A. Neufeld, Astrophys. J. 456, 250 (1996).
  81. D.R. Flower and G. Pineau Des Forêts, Monthly Not. Roy. Astron. Soc. 406(3), 1745 (2010).
  82. B. Godard, G. Pineau des Forêts, P. Lesaffre, A. Lehmann, A. Gusdorf, and E. Falgarone, Astron. and Astrophys. 622, id. A100 (2019), arXiv:1901.04273 [astro-ph.GA].
  83. D.R. Flower and G. Pineau des Forets, Monthly Not. Roy. Astron. Soc. 268(3), 724 (1994).
  84. J. Rho, J.W. Hewitt, J. Bieging, W.T. Reach, M. Andersen, and R. Güsten, Astrophys. J. 834, id. 12 (2017), arXiv:1610.05459 [astro-ph.GA].
  85. N. Chartab, A. Cooray, J. Ma, H. Nayyeri, et al., Nature Astron. 6, 844 (2022), arXiv:2201.07478 [astro-ph.GA].
  86. S. Charlot and M. Longhetti, Monthly Not. Roy. Astron. Soc. 323, 887 (2001), arXiv:astroph/0101097.
  87. L.S. Pilyugin and E.K. Grebel, Monthly Not. Roy. Astron. Soc. 457, 3678 (2016), arXiv:1601.08217 [astro-ph.GA].
  88. E. Pérez-Montero and T. Contini, Monthly Not. Roy. Astron. Soc. 398, 949 (2009), arXiv:0905.4621 [astro-ph.CO].
  89. C.C. Steidel, G.C. Rudie, A.L. Strom, M. Pettini, et al., Astrophys. J. 795, id. 165 (2014), arXiv:1405.5473 [astro-ph.GA].

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