Skip to main content
Log in

Kinematics and stellar disk modeling of lenticular galaxies

  • Published:
Astrophysical Bulletin Aims and scope Submit manuscript

Abstract

We present the results of spectroscopic observations of three S0-Sa galaxies: NGC 338, NGC 3245, and NGC 5440 at the SAO RAS 6-m BTA telescope. The radial distributions of the line-ofsight velocities and radial velocity dispersions of stars and ionized gas were obtained, and rotation curves of galaxies were computed. We construct the numerical dynamic N-body galaxy models with N ≥ 106 points. The models include three components: a “live” bulge, a collisionless disk, dynamically evolving to the marginally stable state, and a pseudo-isothermal dark halo. The estimates of radial velocities and velocity dispersions of stars obtained from observations are compared with model estimates, projected onto the line of sight. We show that the disks of NGC 5440 and the outer regions of NGC 338 are dynamically overheated. Taking into account the previously obtained observations, we conclude that the dynamic heating of the disk is present in a large number of early-type disk galaxies, and it seems to ensue from the external effects. The estimates of the disk mass and relative mass of the dark halo are given, as well as the disk mass-to-luminosity ratio for seven galaxies, observed at the BTA.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. E. Noordermeer and J. M. van der Hulst, Monthly Notices Roy. Astronom. Soc. 376, 1480 (2007).

    Article  ADS  Google Scholar 

  2. A. Boselli and G. Gavazzi, Publ. Astronom. Soc. Pacific 118, 517 (2006).

    Article  ADS  Google Scholar 

  3. A. Boselli, S. Boissier, L Cortese, and G. Gavazzi, Astron. Nachr. 330, 904 (2009).

    Article  ADS  Google Scholar 

  4. J.M. Barr, A. G. Bedregal, A. Aragón-Salamanca, et al., Astronom. and Astrophys. 470, 173 (2007).

    Article  ADS  Google Scholar 

  5. A. Aragón-Salamanca, IAUS 245, 285 (2008).

    ADS  Google Scholar 

  6. K. Bekki and W. J. Couch, Monthly Notices Roy. Astronom. Soc. 415, 1783 (2011).

    Article  ADS  Google Scholar 

  7. S. van den Bergh, Astrophys. J. 694, L120 (2009).

    Article  ADS  Google Scholar 

  8. M. J. Williams, M. Bureau, and M. Cappellari, Monthly Notices Roy. Astronom. Soc. 409, 1330 (2010).

    Article  ADS  Google Scholar 

  9. O. K. Sil’chenko and I. V. Chilingarian, Astron. Lett. 37, 1 (2011).

    Article  ADS  Google Scholar 

  10. E. Noordermeer, M. R. Merrifield, L. Coccato, et al., Monthly Notices Roy. Astronom. Soc. 384, 943, (2008).

    Article  ADS  Google Scholar 

  11. F. Bournaud, C. J Jog, and F. Combes, Astronom. and Astrophys. 437, 69 (2005).

    Article  ADS  Google Scholar 

  12. A. V. Zasov, A. V. Khoperskov, and A. S. Saburova, Astron. Lett. 37, 374 (2011).

    Article  ADS  Google Scholar 

  13. A. Cortesi, M. R. Merrifield, M. Arnaboldi, et al., Monthly Notices Roy. Astronom. Soc. 414, 642 (2011).

    Article  ADS  Google Scholar 

  14. A. M. Fridman and A. V. Khoperskov, The Physics of Galactic Disks (Fizmatlit, Moscow, 2011) [in Russian].

    Google Scholar 

  15. E. Griv and M. Gedalin, Monthly Notices Roy. Astronom. Soc. 422, 600 (2012).

    Article  ADS  Google Scholar 

  16. A. V. Khoperskov, A. V. Zasov, and N. V. Tyurina, Astron. Rep. 47, 357 (2003).

    Article  ADS  Google Scholar 

  17. A. V. Zasov, A. V. Khoperskov, and N. V. Tyurina, Astron. Lett. 30, 593 (2004).

    Article  ADS  Google Scholar 

  18. R. Bottema, Astronom. and Astrophys. 197, 105 (1988).

    ADS  Google Scholar 

  19. R. Bottema, Astronom. and Astrophys. 275, 16 (1993).

    ADS  Google Scholar 

  20. A. V. Zasov and A. S. Saburova, Astron. Lett. (in press).

  21. A. S. Saburova, Astron. Rep. 55, 409 (2011).

    Article  ADS  Google Scholar 

  22. A. V. Zasov, A. V. Moiseev, A. V. Khoperskov, and E. A. Sidorova, Astron. Rep. 52, 79 (2008).

    Article  ADS  Google Scholar 

  23. I. V. Chilingarian, A. P. Novikova, V. Cayatte, et al., Astronom. and Astrophys. 504, 389 (2009).

    Article  ADS  Google Scholar 

  24. E. Noordermeer, J. M. van der Hulst, R. Sancisi, et al., Astronom. and Astrophys. 442, 137 (2005).

    Article  ADS  Google Scholar 

  25. E. Noordermeer, J. M. van der Hulst, R. Sancisi, et al., Monthly Notices Roy. Astronom. Soc. 376, 1513 (2007).

    Article  ADS  Google Scholar 

  26. E. Noordermeer and M. A. W. Verheijen, Monthly Notices Roy. Astronom. Soc. 381, 1463 (2007).

    Article  ADS  Google Scholar 

  27. L. C. Ho, A. V. Filippenko, W. L. Sargent, and C. Y. Peng, Astrophys. J. Suppl. 112, 391 (1997).

    Article  ADS  Google Scholar 

  28. J. Mendez-Abreu, J.A. L. Aguerri, E. M. Corsini, and E. Simonneau, Astronom. and Astrophys. 478, 353 (2008).

    Article  ADS  Google Scholar 

  29. F. Simien and Ph. Prugniel, Astronom. and Astrophys. Suppl. Ser. 131, 287 (1998).

    Article  ADS  Google Scholar 

  30. V. L. Afanasiev and A. V. Moiseev, Astron. Lett. 31, 194, (2005).

    Article  ADS  Google Scholar 

  31. I. Y. Katkov and I. V Chilingarian, ASP Conf. Proc. 442, 143 (2011).

    ADS  Google Scholar 

  32. M. Koleva, Ph. Prugniel, A. Bouchard, and Y. Wu, Astronom. and Astrophys. 501, 1269 (2009).

    Article  ADS  Google Scholar 

  33. M. Koleva, Ph. Prugniel, and S. De Rijcke, Monthly Notices Roy. Astronom. Soc. 385, 1998 (2008).

    Article  ADS  Google Scholar 

  34. R. P. van der Marel and M. Franx, Astrophys. J. 407, 525 (1993).

    Article  ADS  Google Scholar 

  35. D. Le Borgne, B. Rocca-Volmerange, Ph. Prugniel, et al., Astronom. and Astrophys. 425, 881 (2004).

    Article  ADS  Google Scholar 

  36. M. Cappellari and E. Emsellem, Publ. Astronom. Soc. Pacific 116, 138 (2004).

    Article  ADS  Google Scholar 

  37. I. Chilingarian, Ph. Prugniel, O. Sil’chenko, and M. Koleva, IAUS 241, 175 (2007).

    ADS  Google Scholar 

  38. O. Sil’chenko, IAUS 284 (in press); astroph: 1112.3771.

  39. O. K. Sil’chenko, I. S. Proshina, A. P. Shulga, and S. E. Koposov, submitted to Monthly Notices Roy. Astronom. Soc..

  40. N. Silk, Astrophys. J. 700, 262 (2009).

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Original Russian Text © A.V. Zasov, A.V. Khoperskov, I.Yu. Katkov, V.L. Afanasiev, S. S. Kaisin, 2012, published in Astrofizicheskii Byulleten, 2012, Vol. 67, No. 4, pp. 376–387.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zasov, A.V., Khoperskov, A.V., Katkov, I.Y. et al. Kinematics and stellar disk modeling of lenticular galaxies. Astrophys. Bull. 67, 362–373 (2012). https://doi.org/10.1134/S1990341312040025

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1990341312040025

Keywords

Navigation