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Study of Integrated Spectra of Four Globular Clusters in M 31

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Abstract

The results of determining the metallicity, age, helium mass fraction (Y) and abundances of the elements C, N, Mg, Ca, Mn, Ti and Cr by moderate resolution spectra for four globular clusters in the galaxy M 31: Bol 6, Bol 20, Bol 45 and Bol 50 are presented. The chemical composition for Bol 20 and Bol 50, and Y for four clusters are determined for the first time. The spectra of the studied objects were obtained with the 6-meter telescope of the SAO RAS in 2020. All the clusters under study turned out to be older than 11 Gyrs. The determined metallicities [Fe/H] are in the range from \( - 1.1\) to \( - 0.75\) dex. They are lower than the metallicity of stars of the M 31 halo at a given distance from the galactic center (\({{R}_{{{\text{M}}{\kern 1pt} 31}}} < 10\) kpc). The abundances of the elements of the α-process \([\alpha {\text{/Fe}}] = ([{\text{O/Fe}}] + [{\text{Mg/Fe}}] + [{\text{Ca/Fe}}]){\text{/}}3\) of the four clusters correspond to those of the stars of the inner halo of M 31.

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Notes

  1. \(E(B - V) = {{A}_{B}} - {{A}_{V}},\) where \({{A}_{B}}\) and \({{A}_{V}}\) are the extinction in stellar magnitudes in the B- and V-bands, respectively. According to Schlegel et al. (1998), \({{A}_{V}} = 3.315{\kern 1pt} E(B - V),\) \({{A}_{I}} = 1.940{\kern 1pt} E(B - V).\)

  2. http://archive.stsci.edu/cgi-bin/dss_form.

  3. http://ulyss.univ-lyon1.fr/tuto_base.html.

  4. ftp://ftp.sao.ru/pub/sme/GC4M31/lsf/.

  5. http://kurucz.harvard.edu/linelists.html.

  6. The iron abundance in solar units: [Fe/H] = \(\log ({{{\text{N}}}_{{{\text{Fe}}}}}{\text{/}}{{{\text{N}}}_{{\text{H}}}}) - \log {{({{{\text{N}}}_{{{\text{Fe}}}}}{\text{/}}{{{\text{N}}}_{{\text{H}}}})}_{ \odot }}\), where \({{{\text{N}}}_{{{\text{Fe}}}}}{\text{/}}{{{\text{N}}}_{{\text{H}}}}\) is the ratio of the concentrations of iron and hydrogen by the number of atoms, or by mass. The mass fractions of hydrogen X, helium Y, and metals Z for the Sun are given in the paper Asplund et al. (2009): X + Y + Z = 1.

  7. ftp://ftp.sao.ru/pub/sme/GC4M31/.

  8. ftp://ftp.sao.ru/pub/sme/GC4M31/bol6/ for Bol 6.

  9. ftp://ftp.sao.ru/pub/sme/GC4M31/bol45/ for Bol 45 and Bol 50.

  10. ftp://ftp.sao.ru/pub/sme/GC4M31/bol6/cmd_Bol6_newdist.ps for Bol 6.

  11. ftp://ftp.sao.ru/pub/sme/GC4M31/bol45/cmd_Bol45_newdist.ps for Bol 45.

REFERENCES

  1. V. L. Afanasiev and A. V. Moiseev, Astronomy Letters 31, 194 (2005).

    Article  ADS  Google Scholar 

  2. E. A. Ajhar, C. J. Grillmair, T. R. Lauer, et al., Astron. J. 111, 1110 (1996).

    Article  ADS  Google Scholar 

  3. M. Asplund, N. Grevesse, A. J. Sauval, and P. Scott, Annual Rev. Astron. Astrophys. 47, 481 (2009).

    Article  ADS  Google Scholar 

  4. K. Banse, P. Crane, P. Grosbol, et al., Messenger 31, 26 (1983).

    ADS  Google Scholar 

  5. P. Barmby, D. E. McLaughlin, W. E. Harris, et al., Astron. J. 133, 2764 (2007).

    Article  ADS  Google Scholar 

  6. G. Bertelli, L. Girardi, P. Marigo, and E. Nasi, Astron. and Astrophys. 484, 815 (2008).

    Article  ADS  Google Scholar 

  7. D. Burstein and C. Heiles, Astron. J. 87, 1165 (1982).

    Article  ADS  Google Scholar 

  8. N. Caldwell and A. J. Romanowsky, Astrophys. J. 824, 42 (2016).

    Article  ADS  Google Scholar 

  9. N. Caldwell, P. Harding, H. Morrison, et al., Astron. J. 137, 94 (2009).

    Article  ADS  Google Scholar 

  10. N. Caldwell, R. Schiavon, H. Morrison, et al., Astron. J. 141, 61 (2011).

    Article  ADS  Google Scholar 

  11. F. Castelli and R. L. Kurucz, IAU Symp. 210, A20 (2003).

  12. E. Cezario, P. R. T. Coelho, A. Alves-Brito, et al., Astron. and Astrophys. 549, A60 (2013).

    Article  Google Scholar 

  13. G. Chabrier, Astrophys. Space Sci. Library 327, 41 (2005).

    Article  ADS  Google Scholar 

  14. J. E. Colucci, R. A. Bernstein, and J. G. Cohen, Astrophys. J. 797, 116 (2014).

    Article  ADS  Google Scholar 

  15. J. E. Colucci, R. A. Bernstein, and A. McWilliam, Astrophys. J. 834(2), id. 105 (2017).

  16. G. S. Da Costa and T. E. Armadroff, Astron. J. 100, 162 (1990).

    Article  ADS  Google Scholar 

  17. T. J. Davidge, Astrophys. J. 597, 289 (2003).

    Article  ADS  Google Scholar 

  18. T. J. Davidge, Astron. J. 130, 2087 (2005).

    Article  ADS  Google Scholar 

  19. D. Fabricant, R. Fata, J. Roll, et al., Publ. Astron. Soc. Pacific 117, 1411 (2005).

    Article  ADS  Google Scholar 

  20. Z. Fan, R. de Grijs, B. Chen, et al., Astron. J. 152, 208 (2016).

    Article  ADS  Google Scholar 

  21. L. Federici, C. Cacciari, M. Bellazzini, et al., Astron. and Astrophys. 544, id. A155 (2012).

  22. S. Galleti, L. Federici,M. Bellazzini, et al., Astron. and Astrophys. 416, 917 (2004).

    Article  ADS  Google Scholar 

  23. M. Geha, P. Guhathakurta, R. M. Rich, and M. C. Cooper, Astron. J. 131, 332 (2006).

    Article  ADS  Google Scholar 

  24. K. M. Gilbert, J. Wojno, E. N. Kirby, et al., Astron. J. 160, 41 (2020).

    Article  ADS  Google Scholar 

  25. E. Hubble, Astrophys. J. 76, 44 (1932).

    Article  ADS  Google Scholar 

  26. C. Kobayashi, H. Umeda, K. Nomoto, et al., Astrophys. J. 653, 1145 (2006).

    Article  ADS  Google Scholar 

  27. M. Koleva, P. Prugniel, P. Ocvirk, et al., Monthly Notices Royal Astron. Soc. 385, 1998 (2008).

    Article  ADS  Google Scholar 

  28. M. Koleva, P. Prugniel, A. Bouchard, and Y. Wu, Astron. and Astrophys. 501, 1269 (2009).

    Article  ADS  Google Scholar 

  29. S. S. Larsen, J. P. Brodie, and J. Strader, Astron. and Astrophys. 601, id. A96 (2017).

  30. M. G. Lee,W. L. Freedman, and B. F. Madore, Astrophys. J. 417, 553 (1993).

    Article  ADS  Google Scholar 

  31. D. Mackey, G. F. Lewis, B. J. Brewer, et al., Nature 574, 69 (2019).

    Article  ADS  Google Scholar 

  32. A.W.McConnachie, R. Ibata, N.Martin, et al., Astrophys. J. 868, 55 (2018).

    Article  ADS  Google Scholar 

  33. A. W. McConnachie, M. J. Irwin, A. M. Ferguson, et al., Monthly Notices Royal Astron. Soc. 356, 979 (2005).

    Article  ADS  Google Scholar 

  34. A. W. McConnachie, Astron. J. 144, 4 (20212).

  35. J. R. Mould, J. Kristian, and G. S. Da Costa, Astrophys. J. 278, 575 (1984).

  36. A. Pietrinferni, S. Cassisi, M. Salaris, and F. Castelli, Astrophys. J. 612, 168 (2004).

    Article  ADS  Google Scholar 

  37. R. M. Rich, C. E. Corsi, C. Cacciari, et al., Astron. J. 129, 2670 (2005).

    Article  ADS  Google Scholar 

  38. A. J. Riess, L. M. Macri, S. L. Hoffmann, et al., Astrophys. J. 826, 56 (2016).

    Article  ADS  Google Scholar 

  39. S. Sakai, B. F. Madore, and W. L. Freedman, Astrophys. J. 461, 713 (1996).

    Article  ADS  Google Scholar 

  40. C. M. Sakari, M. D. Shetrone, R. P. Schiavon et al., Astrophys. J. 829(2), 116 (2016).

    Article  ADS  Google Scholar 

  41. C. M. Sakari, K. Venn, M. Shetrone, et al., Monthly Notices Royal Astron. Soc. 443, 2285 (2014).

    Article  ADS  Google Scholar 

  42. R. P. Schiavon, J. A. Rose, S. Courteau, and L. A. MacArthur, Astrophys. J. Suppl. 160(1), 163 (2005).

    Article  ADS  Google Scholar 

  43. D. J. Schlegel, D. P. Finkbeiner, and M. Davis, Astrophys. J. 500, 525 (1998).

    Article  ADS  Google Scholar 

  44. C. K. Seyfert and J. J. Nassau, Astrophys. J. 102, 377 (1945).

    Article  ADS  Google Scholar 

  45. M. E. Sharina, V. V. Shimansky, and N. N. Shimanskaya, Astrophysical Bulletin 75, 247 (2020).

    Article  ADS  Google Scholar 

  46. M. E. Sharina, V. V. Shimansky, and D. A. Khamidullina, Astrophysical Bulletin 73, 318 (2018).

    Article  ADS  Google Scholar 

  47. M. E. Sharina, V.V. Shimansky, and E. Davoust, Astronomy Reports 57, 410 (2013).

    Article  ADS  Google Scholar 

  48. M. E. Sharina and V. V. Shimansky, in Proc. All- Russian Conference on Ground-Based Astronomy in Russia. 21st Century, Nizhny Arkhyz, Russia, 2020, Ed. by I. I. Romanyuk, I. A. Yakunin, A. F. Valeev, and D. O. Kudryavtsev (SAO RAS, Nizhnii Arkhyz, 2020), p. 267.

  49. M. E. Sharina, V. L. Afanasiev, and T. H. Puzia, Monthly Notices Royal Astron. Soc. 372, 1259 (2006).

    Article  ADS  Google Scholar 

  50. D. A. Thilker, R. Braun, R. A. M. Walterbos, et al., Astrophys. J. 601, L39 (2004).

    Article  ADS  Google Scholar 

  51. D. Tody, ASP Conf. Ser 52, 173 (1993).

  52. S. Wang, J. Ma, and J. Liu, Astron. and Astrophys. 623, id. A65 (2019).

  53. S. Wang, B. Chen, and J. Ma, Astron. and Astrophys. 645, A115 (2021).

    Article  ADS  Google Scholar 

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ACKNOWLEDGMENTS

The author is grateful to M.E. Sharina for supervising the work and for providing observational data from the 6-m SAO RAS telescope, and to V. V. Shimansky for providing a modified version of the CLUSTER program for spectrum modeling.

The Digitized Sky Surveys were produced at the Space Telescope Science Institute under U.S. Government grant NAG W-2166.

Funding

Observations with the SAO RAS telescopes are supported by the Ministry of Science and Higher Education of the Russian Federation (including agreement no. 05.619.21.0016, project ID RFMEFI61919X0016). The renovation of telescope equipment is currently provided within the national project ”Science.”

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  1. Special Astrophysical Observatory, Russian Academy of Sciences, 369167, Nizhnii Arkhyz, Russia

    M. I. Maricheva

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Translated by T. Sokolova

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Maricheva, M.I. Study of Integrated Spectra of Four Globular Clusters in M 31. Astrophys. Bull. 76, 389–404 (2021). https://doi.org/10.1134/S199034132104009X

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