- PII
- S30345170S0004629925020043-1
- DOI
- 10.7868/S3034517025020043
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 102 / Issue number 2
- Pages
- 113-129
- Abstract
- Studies of the structure and kinematics of cores associated with the regions of massive star and star cluster formation are necessary for constructing scenario for the evolution of these objects. We analyzed spectral maps of massive cores G012.418+00.506, G326.472+00.888, G328.567–00.535, G335.586–00.289 and G343.127–00.063 from the MALT90 survey in the HCO+(1–0) and H13CO+(1–0) lines. The cores are at different stages of evolution and have signs of contraction. By fitting spectral maps calculated within the framework of the spherically-symmetric model into the observed ones, the parameters of the density, turbulent velocity, and contraction velocity radial profiles are calculated. The power-law index of the density decay with distance from the center varies in the range of ∼1.5–2.8, the lowest value is obtained for the core G326.472+00.888 without internal sources. The contraction velocity in all the cores depends weakly on the distance from the center, decreasing with the index ∼0.1, which differs from the free-fall regime. For the cores G328.567–00.535 and G335.586–00.289 there are indications of rotation. Analysis of the 13CO(2–1) data from the SEDIGISM survey for the G012.418+00.506, G335.586–00.289 and G343.127–00.063 regions has revealed motions from surrounding gas to the cores. The results obtained indicate that the massive cores under consideration interact with their environment and are apparently in a state of global collapse.
- Keywords
- звездообразование молекулярные облака плотные ядра молекулярные линии моделирование
- Date of publication
- 01.02.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 100
References
- 1. J.C. Tan, M.T. Beltrán, P. Caselli, F. Fontani, A. Fuente, M.R. Krumholz, C.F. McKee, and A. Stolte, in Protostars and Planets VI, edited by H. Beuther, R.S. Klessen, C.P. Dullemond, and T. Henning (Tucson: University of Arizona Press, 2014), p. 149.
- 2. F. Motte, S. Bontemps, and F. Louvet, Ann. Rev. Astron. Astrophys. 56, 41 (2018).
- 3. A. Whitworth and D. Summers, Monthly Not. Roy. Astron. Soc. 214, 1 (1985).
- 4. F.H. Shu, Astrophys. J. 214, 488 (1977).
- 5. C.F. McKee and J.C. Tan, Astrophys. J. 585(2), 850 (2003).
- 6. I.A. Bonnell, M.R. Bate, C.J. Clarke, and J.E. Pringle, Monthly Not. Roy. Astron. Soc. 323(4), 785 (2001).
- 7. E. Vázquez-Semadeni, A. Palau, J. BallesterosParedes, G.C. Gómez, M. Zamora-Avilés, Monthly Not. Roy. Astron. Soc. 490(3), 3061 (2019).
- 8. P.C. Myers, D. Mardones, M. Tafalla, J.P. Williams, and D.J. Wilner, Astrophys. J. Letters 465, L133 (1996).
- 9. Л.Е. Пирогов, П.М. Землянуха, Астрон. журн. 98(2), 102 (2021).
- 10. Y.-X. He, J.-J. Zhou, J. Esimbek, W.-G. Ji, et al., Monthly Not. Roy. Astron. Soc. 461(3), 2288 (2016).
- 11. Л.Е. Пирогов, В.М. Шульга, И.И. Зинченко, П.М. Землянуха, А.H. Патока, М. Томассон, Астрон. журн. 93, 871 (2016).
- 12. H. Yoo, K.-T. Kim, J. Cho, M. Choi, J. Wu, N.J. Evans, II, and L.M. Ziurys, Astrophys. J. Suppl. 235(2), id. 31 (2018).
- 13. Л.Е. Пирогов, П.М. Землянуха, Е.М. Домбек, М.А. Воронков, Астрон. журн. 100, 1217 (2023).
- 14. J.M. Jackson, J.M. Rathborne, J.B. Foster, J.S. Whitaker, et al., Publ. Astron. Soc. Australia 30, id. e057 (2013).
- 15. F. Schuller, K.M. Menten, Y. Contreras, F. Wyrowski, et al., Astron. and Astrophys. 504(2), 415 (2009).
- 16. S. Molinari, B. Swinyard, J. Bally, M. Barlow, et al., Publ. Astron. Soc. Pacific 122(889), 314 (2010).
- 17. F. Schuller, J.S. Urquhart, T. Csengeri, D. Colombo, et al., Monthly Not. Roy. Astron. Soc. 500(3), 3064 (2021).
- 18. T. Umemoto, T. Minamidani, N. Kuno, S. Fujita, et al., Publ. Astron. Soc. Japan 69(5), id. 78 (2017).
- 19. J.M. Rathborne, J.S. Whitaker, J.M. Jackson, J.B. Foster, et al., Publ. Astron. Soc. Australia 33, id. e030 (2016).
- 20. N.J. Evans, II, Ann. Rev. Astron. Astrophys. 37, 311 (1999).
- 21. J.S. Urquhart, M.R.A. Wells, T. Pillai, S. Leurini, et al., Monthly Not. Roy. Astron. Soc. 510(3), 3389 (2022).
- 22. A.E. Guzman, P. Sanhueza, Y. Contreras, H.A. Smith, J.M. Jackson, S. Hoq, and J.M. Rathborne, Astrophys. J. 815(2), id. 130 (2015).
- 23. Galactic Legacy Infrared Midplane Survey Extraordinaire (GLIMPSE), https://irsa.ipac.caltech.edu/ data/SPITZER/GLIMPSE/
- 24. N. Issac, A. Tej, T. Liu, W. Varricatt, S. Vig, C.H. Ishwara Chandra, and M. Schultheis, Monthly Not. Roy. Astron. Soc. 485(2), 1775 (2019).
- 25. C.J. Cyganowski, B.A. Whitney, E. Holden, E. Braden, et al., Astron. J. 136(6), 2391 (2008).
- 26. X. Chen, Z.-Q. Shen, J.-J. Li, Y. Xu, and J.-H. He, Astrophys. J. 710(1), 150 (2010).
- 27. A. Saha, A. Tej, H.-L. Liu, T. Liu, et al., Monthly Not. Roy. Astron. Soc. 516(2), 1983 (2022).
- 28. J.S. Urquhart, M.G. Hoare, C.R. Purcell, S.L. Lumsden, et al., Astron. and Astrophys. 501(2), 539 (2009).
- 29. Y.L. Shirley, N.J. Evans, II, K.E. Young, C. Knez, D.T. Jaffe, Astrophys. J. Suppl. 149(2), 375 (2003).
- 30. C.J. Cyganowski, J. Koda, E. Rosolowsky, S. Towers, J. Donovan Meyer, F. Egusa, R. Momose, and T.P. Robitaille, Astrophys. J. 764(1), id. 61 (2013).
- 31. R. Cesaroni, F. Palagi, M. Felli, M. Catarzi, G. Comoretto, S. Di Franco, C. Giovanardi, and F. Palla, Astron. and Astrophys. Suppl. Ser. 76, 445 (1988).
- 32. B.E. Svoboda, Y.L. Shirley, C. Battersby, E.W. Rosolowsky, et al., Astrophys. J. 822(2), id. 59 (2016).
- 33. X. Chen, S.P. Ellingsen, Z.-Q. Shen, A. Titmarsh, C.-G. Gan, Astrophys. J. Suppl. 196(1), id. 9 (2011).
- 34. W. Yang, Y. Xu, X. Chen, S.P. Ellingsen, D. Lu, B. Ju, and Y. Li, Astrophys. J. Suppl. 231(2), id. 20 (2017).
- 35. H. Nguyen, M.R. Rugel, C. Murugeshan, K.M. Menten, et al., Astron. and Astrophys. 666, id. A59 (2022).
- 36. D.A. Ladeyschikov, O.S. Bayandina, and A.M. Sobolev, Astron. J. 158(6), id. 233 (2019).
- 37. T. Csengeri, S. Bontemps, F. Wyrowski, S.T. Megeath, F. Motte, A. Sanna, M. Wienen, and K.M. Menten, Astron. and Astrophys. 601, id. A60 (2017).
- 38. T. Mauch, T. Murphy, H.J. Buttery, J. Curran, R.W. Hunstead, B. Piestrzynski, J.G. Robertson, and E.M. Sadler, Monthly Not. Roy. Astron. Soc. 342(4), 1117 (2003).
- 39. N.-P. Yu, J.-L. Xu, J.-J. Wang, and X.-L. Liu, Astrophys. J. 865(2), id. 135 (2018).
- 40. Y. Lin, T. Csengeri, F. Wyrowski, J.S. Urquhart, F. Schuller, A. Weiss, and K.M. Menten, Astron. and Astrophys. 631, id. A72 (2019).
- 41. T. Culverhouse, P. Ade, J. Bock, M. Bowden, et al., Astrophys. J. Suppl. 195(1), id. 8 (2011).
- 42. J.P. Phillips and J.A. Pérez-Grana, Monthly Not. Roy. Astron. Soc. 393(2), 354 (2009).
- 43. F. Fontani, M.T. Beltran, J. Brand, R. Cesaroni, L. Testi, S. Molinari, and C.M. Walmsley, Astron. and Astrophys. 432(3), 921 (2005).
- 44. G.C. MacLeod, D.J. van der Walt, A. North, M.J. Gaylard, J.A. Galt, and G.H. Moriarty-Schieven, Astron. J. 116(6), 2936 (1998).
- 45. R.J. Cohen, M.R.W. Masheder, and J.L. Caswell, Monthly Not. Roy. Astron. Soc. 274(3), 808 (1995).
- 46. N. Peretto and G.A. Fuller, Astron. and Astrophys. 505(1), 405 (2009).
- 47. F.-W. Xu, K. Wang, T. Liu, P.F. Goldsmith, et al., Monthly Not. Roy. Astron. Soc. 520(3), 3259 (2023).
- 48. K. Ishihara, P. Sanhueza, F. Nakamura, M. Saito, et al., arXiv:2407.06845 [astro-ph.GA] (2024).
- 49. M. Anderson, N. Peretto, S.E. Ragan, A.J. Rigby, et al., Monthly Not. Roy. Astron. Soc. 508(2), 2964 (2021).
- 50. A.J. Walsh, C.R. Purcell, S.N. Longmore, S.L. Breen, J.A. Green, L. Harvey-Smith, C.H. Jordan, and C. Macpherson, Monthly Not. Roy. Astron. Soc. 442(3), 2240 (2014).
- 51. S.L. Breen, J.L. Caswell, S.P. Ellingsen, and C.J. Phillips, Monthly Not. Roy. Astron. Soc. 406(3), 1487 (2010).
- 52. J.L. Caswell, J.A. Green, and C.J. Phillips, Monthly Not. Roy. Astron. Soc. 439(2), 1680 (2014).
- 53. M.A. Voronkov, J.L. Caswell, S.P. Ellingsen, J.A. Green, and S.L. Breen, Monthly Not. Roy. Astron. Soc. 439(3), 2584 (2014).
- 54. S.L. Breen, Y. Contreras, J.R. Dawson, S.P. Ellingsen, M.A. Voronkov, and T.P. McCarthy, Monthly Not. Roy. Astron. Soc. 484(4), 5072 (2019).
- 55. X. Chen, S.P. Ellingsen, Z.-Q. Shen, A. Titmarsh, and C.-G. Gan, Cong-Gui, Astrophys. J. Suppl. 196(1), id. 9 (2011).
- 56. A.J. Walsh, M.G. Burton, A.R. Hyland, and G. Robinson, Monthly Not. Roy. Astron. Soc. 301(3), 640 (1998).
- 57. J.L. Caswell, Publ. Astron. Soc. Australia 26(4), 454 (2009).
- 58. G. Garay, D. Mardones, L. Bronfman, K.J. Brooks, et al., Astron. and Astrophys. 463(1), 217 (2007).
- 59. G. Garay, K.J. Brooks, D. Mardones, and R.P. Norris, Astrophys. J. 587(2), 739 (2003).
- 60. L.F. Rodriguez, G. Garay, K.J. Brooks, and D. Mardones, Astrophys. J. 626(2), 953 (2005).
- 61. L.A. Zapata, G. Garay, A. Palau, L.F. Rodriguez, M. Fernandez-Lopez, R. Estalella, and A. Guzman, Astrophys. J. 872(2), id. 176 (2019).
- 62. J.R. Forster and J.L. Caswell, Astron. and Astrophys. Suppl. Ser. 137, 43 (1999).
- 63. H.-H. Qiao, A.J. Walsh, J.A. Green, S.L. Breen, et al., Astrophys. J. Suppl. 227(2), id. 26 (2016).
- 64. V.I. Slysh, S.V. Kalenskii, I.E. Valtts, and R. Otrupcek, Monthly Not. Roy. Astron. Soc. 268(2), 464 (1994).
- 65. L. Pirogov, I. Zinchenko, P. Caselli, and L.E.B. Johansson, Astron. and Astrophys. 461(2), 523 (2007).
- 66. L. Pirogov, I. Zinchenko, P. Caselli, L.E.B. Johansson, and P.C. Myers, Astron. and Astrophys. 405, 639 (2003).
- 67. Y. Pavlyuchenkov, D. Wiebe, R. Launhardt, and T. Henning, Astrophys. J. 645(2), 1212 (2006).
- 68. S. Terebey, C.J. Chandler, and P. Andre, Astrophys. J. 414, 759 (1993).
- 69. S.D. Doty and C.M. Leung, Astrophys. J. 424, 729 (1994).
- 70. Y.N. Pavlyuchenkov, D.S. Wiebe, A.M. Fateeva, and T.S. Vasyunina, Astron. Rep. 55(1), 1 (2011).
- 71. Y.N. Pavlyuchenkov, A.G. Zhilkin, E.I. Vorobyov, and A.M. Fateeva, Astron. Rep. 59(2), 133 (2015).
- 72. D.R. Flower, Monthly Not. Roy. Astron. Soc. 305(3), 651 (1999).
- 73. M. Juvela, Astron. and Astrophys. 644, id. A151 (2020).
- 74. L.E. Pirogov, Astron. Rep. 53(12), 1127 (2009).
- 75. S.A. Khaibrakhmanov, A.E. Dudorov, N.S. Kargaltseva, and A.G. Zhilkin, Astron. Rep. 65(8), 693 (2021).
- 76. M.R.A. Wells, H. Beuther, S. Molinari, P. Schilke, et al., Astron. and Astrophys. 690, id. A185 (2024).
- 77. A. Hacar, J. Alves, M. Tafalla, and J.R. Goicoechea, Astron. and Astrophys. 602, id. L2 (2017).
- 78. J.W. Zhou, F. Wyrowski, S. Neupane, J.S. Urquhart, et al., Astron. and Astrophys. 676, id. A69 (2023).