Abstract
Results of spectroscopic and photometric studies for the locally isolated lenticular galaxy NGC 4124 are presented. A model of the mass distribution consistent with photometric data has been constructed on the basis of a kinematic analysis. In this model, the halo mass within the optical radius is almost half the diskmass. The disk is shown to be in a dynamical state close to amarginally stable one. This rules out dynamical disk heating for the galaxy through a strong external action or a merger with a massive system. However, the presence of a gaseous disk inclined to the main plane of the galaxy in the central kiloparsec region suggests probable cannibalization of a small satellite that also produced a late starburst in the central region. This is confirmed by the younger mean age (∼2 Gyr) of the stellar population in the galaxy’s central region than the disk age (5–7 Gyr).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
V. L. Afanasiev and A. V. Moiseev, Astron. Lett. 31, 194 (2005).
R. Bacon, Y. Copin, G. Monnet, et al., Mon. Not. R. Astron. Soc. 326, 23 (2001).
E. F. Bell, D. H. McIntosh, N. Katz, and M. D. Weinberg, Astrophys. J. Suppl. Ser. 149, 289 (2003).
D. le Borgne, B. Rocca-Volmerange, P. Prugniel, et al., Astron. Astrophys. 425, 881 (2004).
M. Cappellari, E. Emsellem, D. Krajnovic, et al., Mon. Not. R. Astron. Soc. 413, 813 (2011).
I. V. Chilingarian, P. Prugniel, O. K. Sil’chenko, et al., Mon. Not. R. Astron. Soc. 376, 1033 (2007a).
I. V. Chilingarian, P. Prugniel, O. K. Sil’chenko, et al., in Stellar Populations as Building Blocks of Galaxies, Proceedings of the 241st IAU Symposium, Ed. by A. Vazdekis and R. F. Peletier (Cambridge Univ. Press, 2007b), p. 175.
T. A. Davis, K. Alatalo, M. Sarzi, et al., Mon. Not. R. Astron. Soc. 417, 882 (2011).
G. Gavazzi, P. Franzetti, M. Scodeggio, et al., Astron. Astrophys. 361, 863 (2000).
I. Yu. Katkov and I. V. Chilingarian, in Astronomical Data Analysis Software and Systems XX, ASP Conference Proceedings, Ed. by I. N. Evans, A. Accomazzi, D. J. Mink, and A. H. Rots (Astronomical Soc. Pacific, 2011), Vol. 442, p. 143.
I. Yu. Katkov, A. V. Moiseev, and O. K. Sil’chenko, Astrophys. J. 740, 83 (2011).
A. V. Khoperskov, A. V. Zasov, and N. V. Tyurina, Astron. Rep. 47, 357 (2003).
K. Kuijken, D. Fisher, and M. R. Merrifield, Mon. Not. R. Astron. Soc. 283, 543 (1996).
B. P. Moster, A. V. Maccio, R. S. Somerville, et al., Mon. Not. R. Astron. Soc. 423, 2045 (2012).
S. M. Percival, M. Salaris, S. Cassisi, et al., Astrophys. J. 690, 427 (2009).
H.-W. Rix, M. Franx, D. Fisher, and G. Illingworth, Astrophys. J. 400, L5 (1992).
K. L. Shapiro, J. Gerssen, and R. P. van der Marel, Astron. J. 126, 2707 (2003).
O. K. Silchenko, I.S Proshina, A. P. Shulga, et al., Mon. Not. R. Astron. Soc. accepted (2012); astro-ph/1209.0606 (2012).
Y. Sofue, Publ. Astron. Soc. Jpn. 64(2) (2012).
V. V. Vlasyuk, Astrofiz. Issled. (Izv. SAO RAN) 36, 107 (1993).
L.M. Young, M. Bureau, T. A. Davis, et al., Mon. Not. R. Astron. Soc. 414, 940 (2011).
A. V. Zasov, A. V. Khoperskov, and A. C. Saburova, Astron. Lett. 37, 374 (2011).
A. V. Zasov, A. V. Khoperskov, I. Yu. Katkov, et al., Astrophys. Bulletin 67, 362 (2011).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.V. Zasov, O.K. Sil’chenko, I.Yu. Katkov, S.N. Dodonov, 2013, published in Pis’ma v Astronomicheskiĭ Zhurnal, 2013, Vol. 39, No. 1, pp. 19–28.
Rights and permissions
About this article
Cite this article
Zasov, A.V., Sil’chenko, O.K., Katkov, I.Y. et al. Kinematics and stellar population of the lenticular galaxy NGC 4124. Astron. Lett. 39, 17–25 (2013). https://doi.org/10.1134/S1063773713010040
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063773713010040