Abstract
We analyze the dynamical models of the massive early-type galaxy NGC 1399, the central galaxy of the Fornax cluster. We use the sample of 790 globular clusters as tracers of gravitational potential and we first extract the kinematics, which is then dynamically modeled. We find that the velocity dispersion remains high and approximately constant throughout the whole galaxy and that the departures from the Gaussian distribution of the orbits are not large. We use the spherical Jeans equation in both Newtonian and MOND approaches, assuming three cases of orbital anisotropies: we study isotropic, tangentially and radially anisotropic models in order to establish the best-fitting values of the mass-to-light ratios. We found that in the Newtonian approximation a significant amount of dark matter is needed and that Navarro-Frenk-White (NFW) model with a dark halo provides a satisfactory description of the kinematics of NGC 1399. We tested three MOND models (standard, simple and toy) and found that none of them can provide a fit of the velocity dispersion profile without the inclusion of dark matter. Finally, using our findings, we placed the galaxy NGC 1399 within the context of other observed early-type galaxies and discuss its location among them.
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Angus, G.W., Famaey, B., Buote, D.A.: Mon. Not. R. Astron. Soc. 387, 1470 (2008). arXiv:0709.0108. doi:10.1111/j.1365-2966.2008.13353.x
Angus, G.W., Famaey, B., Diaferio, A.: Mon. Not. R. Astron. Soc. 402, 395 (2010). arXiv:0906.3322. doi:10.1111/j.1365-2966.2009.15895.x
Bekenstein, J.D.: Phys. Rev. D 70(8), 083509 (2004). arXiv:astro-ph/0403694. doi:10.1103/PhysRevD.70.083509
Bell, E.F., de Jong, R.S.: Astrophys. J. 550, 212 (2001). arXiv:astro-ph/0011493. doi:10.1086/319728
Binney, J., Mamon, G.A.: Mon. Not. R. Astron. Soc. 200, 361 (1982). doi:10.1093/mnras/200.2.361
Binney, J., Tremaine, S.: Galactic Dynamics, 2nd edn. Princeton University Press, Princeton (2008)
Bruzual, G., Charlot, S.: Mon. Not. R. Astron. Soc. 344, 1000 (2003). arXiv:astro-ph/0309134. doi:10.1046/j.1365-8711.2003.06897.x
Bullock, J.S., Kolatt, T.S., Sigad, Y., Somerville, R.S., Kravtsov, A.V., Klypin, A.A., Primack, J.R., Dekel, A.: Mon. Not. R. Astron. Soc. 321, 559 (2001). arXiv:astro-ph/9908159. doi:10.1046/j.1365-8711.2001.04068.x
Chan, M.H.: Astrophys. Space Sci. 361, 116 (2016). arXiv:1602.08168. doi:10.1007/s10509-016-2703-6
Côté, P., McLaughlin, D.E., Hanes, D.A., Bridges, T.J., Geisler, D., Merritt, D., Hesser, J.E., Harris, G.L.H., Lee, M.G.: Astrophys. J. 559, 828 (2001). arXiv:astro-ph/0106005. doi:10.1086/322347
Courteau, S., Cappellari, M., de Jong, R.S., Dutton, A.A., Emsellem, E., Hoekstra, H., Koopmans, L.V.E., Mamon, G.A., Maraston, C., Treu, T., Widrow, L.M.: Rev. Mod. Phys. 86, 47 (2014). arXiv:1309.3276. doi:10.1103/RevModPhys.86.47
de Lorenzi, F., Gerhard, O., Coccato, L., Arnaboldi, M., Capaccioli, M., Douglas, N.G., Freeman, K.C., Kuijken, K., Merrifield, M.R., Napolitano, N.R., Noordermeer, E., Romanowsky, A.J., Debattista, V.P.: Mon. Not. R. Astron. Soc. 395, 76 (2009). arXiv:0804.3350. doi:10.1111/j.1365-2966.2009.14553.x
de Vaucouleurs, G., de Vaucouleurs, A., Corwin, H.G. Jr., Buta, R.J., Paturel, G., Fouqué, P.: Third Reference Catalogue of Bright Galaxies. Vol. I: Explanations and References. Vol. II: Data for Galaxies Between \(0^{h}\) and \(12^{h}\). Vol. III: Data for Galaxies Between \(12^{h}\) and \(24^{h}\) (1991)
Deason, A.J., Belokurov, V., Evans, N.W., McCarthy, I.G.: Astrophys. J. 748, 2 (2012). arXiv:1110.0833. doi:10.1088/0004-637X/748/1/2
Famaey, B., Binney, J.: Mon. Not. R. Astron. Soc. 363, 603 (2005). arXiv:astro-ph/0506723. doi:10.1111/j.1365-2966.2005.09474.x
Famaey, B., Gentile, G., Bruneton, J.-P., Zhao, H.: Phys. Rev. D 75(6), 063002 (2007). arXiv:astro-ph/0611132. doi:10.1103/PhysRevD.75.063002
Fioc, M., Rocca-Volmerange, B.: Astron. Astrophys. 326, 950 (1997). arXiv:astro-ph/9707017
Foster, C., Pastorello, N., Roediger, J., Brodie, J.P., Forbes, D.A., Kartha, S.S., Pota, V., Romanowsky, A.J., Spitler, L.R., Strader, J., Usher, C., Arnold, J.A.: Mon. Not. R. Astron. Soc. 457, 147 (2016). arXiv:1512.06130. doi:10.1093/mnras/stv2947
Gerhard, O.E.: Mon. Not. R. Astron. Soc. 265, 213 (1993). doi:10.1093/mnras/265.1.213
Humphrey, P.J., Buote, D.A., Canizares, C.R., Fabian, A.C., Miller, J.M.: Astrophys. J. 729, 53 (2011). arXiv:1010.6078. doi:10.1088/0004-637X/729/1/53
Hwang, H.S., Lee, M.G., Park, H.S., Kim, S.C., Park, J.-H., Sohn, Y.-J., Lee, S.-G., Rey, S.-C., Lee, Y.-W., Kim, H.-I.: Astrophys. J. 674, 869 (2008). arXiv:0709.4309. doi:10.1086/524001
Into, T., Portinari, L.: Mon. Not. R. Astron. Soc. 430, 2715 (2013). arXiv:1301.2178. doi:10.1093/mnras/stt071
Jones, C., Stern, C., Forman, W., Breen, J., David, L., Tucker, W., Franx, M.: Astrophys. J. 482, 143 (1997)
Kim, D.-W., Fabbiano, G.: Astrophys. J. 441, 182 (1995). doi:10.1086/175348
Kormendy, J., Fisher, D.B., Cornell, M.E., Bender, R.: Astrophys. J. Suppl. Ser. 182, 216 (2009). arXiv:0810.1681. doi:10.1088/0067-0049/182/1/216
Lane, R.R., Salinas, R., Richtler, T.: Astron. Astrophys. 574, 93 (2015). arXiv:1412.3402. doi:10.1051/0004-6361/201424074
Mamon, G.A., Łokas, E.L.: Mon. Not. R. Astron. Soc. 362, 95 (2005). arXiv:astro-ph/0405466. doi:10.1111/j.1365-2966.2005.09225.x
Milgrom, M.: Astrophys. J. 270, 365 (1983). doi:10.1086/161130
Napolitano, N.R., Romanowsky, A.J., Capaccioli, M., Douglas, N.G., Arnaboldi, M., Coccato, L., Gerhard, O., Kuijken, K., Merrifield, M.R., Bamford, S.P., Cortesi, A., Das, P., Freeman, K.C.: Mon. Not. R. Astron. Soc. 411, 2035 (2011). arXiv:1010.1533. doi:10.1111/j.1365-2966.2010.17833.x
Navarro, J.F., Frenk, C.S., White, S.D.M.: Astrophys. J. 490, 493 (1997). arXiv:astro-ph/9611107
Pointecouteau, E., Silk, J.: Mon. Not. R. Astron. Soc. 364, 654 (2005). arXiv:astro-ph/0505017. doi:10.1111/j.1365-2966.2005.09590.x
Pryor, C., Meylan, G.: In: Djorgovski, S.G., Meylan, G. (eds.) Structure and Dynamics of Globular Clusters. Astronomical Society of the Pacific Conference Series, vol. 50, p. 357 (1993)
Richtler, T., Dirsch, B., Gebhardt, K., Geisler, D., Hilker, M., Alonso, M.V., Forte, J.C., Grebel, E.K., Infante, L., Larsen, S., Minniti, D., Rejkuba, M.: Astron. J. 127, 2094 (2004). arXiv:astro-ph/0401175. doi:10.1086/382721
Richtler, T., Schuberth, Y., Hilker, M., Dirsch, B., Bassino, L., Romanowsky, A.J.: Astron. Astrophys. 478, 23 (2008). arXiv:0711.4077. doi:10.1051/0004-6361:20078539
Romanowsky, A.J., Douglas, N.G., Arnaboldi, M., Kuijken, K., Merrifield, M.R., Napolitano, N.R., Capaccioli, M., Freeman, K.C.: Science 301, 1696 (2003). arXiv:astro-ph/0308518. doi:10.1126/science.1087441
Saglia, R.P., Kronawitter, A., Gerhard, O., Bender, R.: Astron. J. 119, 153 (2000). arXiv:astro-ph/9909446. doi:10.1086/301153
Salinas, R., Richtler, T., Bassino, L.P., Romanowsky, A.J., Schuberth, Y.: Astron. Astrophys. 538, 87 (2012). arXiv:1111.1581. doi:10.1051/0004-6361/201116517
Salinas, R., Alabi, A., Richtler, T., Lane, R.R.: Astron. Astrophys. 577, 59 (2015). arXiv:1502.06148. doi:10.1051/0004-6361/201425574
Samurović, S.: Dark Matter in Elliptical Galaxies, Publications de l’Observatoire Astronomique de Beograd 81 (2007)
Samurović, S.: Astron. Astrophys. 570, 132 (2014). doi:10.1051/0004-6361/201321459
Samurović, S.: Serb. Astron. J. (2016). doi:10.2298/SAJ160113002S
Samurović, S., Ćirković, M.M.: Astron. Astrophys. 488, 873 (2008). arXiv:0811.0698. doi:10.1051/0004-6361:200809524
Samurović, S., Danziger, I.J.: Mon. Not. R. Astron. Soc. 363, 769 (2005). arXiv:astro-ph/0508263. doi:10.1111/j.1365-2966.2005.09479.x
Sanders, R.H.: Astrophys. J. Lett. 512, 23 (1999). arXiv:astro-ph/9807023. doi:10.1086/311865
Sanders, R.H.: Mon. Not. R. Astron. Soc. 342, 901 (2003). arXiv:astro-ph/0212293. doi:10.1046/j.1365-8711.2003.06596.x
Sanders, R.H., McGaugh, S.S.: Annu. Rev. Astron. Astrophys. 40, 263 (2002). arXiv:astro-ph/0204521. doi:10.1146/annurev.astro.40.060401.093923
Schuberth, Y., Richtler, T., Hilker, M., Dirsch, B., Bassino, L.P., Romanowsky, A.J., Infante, L.: Astron. Astrophys. 513, 52 (2010). arXiv:0911.0420. doi:10.1051/0004-6361/200912482
Scott, N., Davies, R.L., Houghton, R.C.W., Cappellari, M., Graham, A.W., Pimbblet, K.A.: Mon. Not. R. Astron. Soc. 441, 274 (2014). arXiv:1403.1705. doi:10.1093/mnras/stu472
Tiret, O., Combes, F., Angus, G.W., Famaey, B., Zhao, H.S.: Astron. Astrophys. 476, 1 (2007). arXiv:0710.4070. doi:10.1051/0004-6361:20078569
Tonry, J.L.: Astrophys. J. 266, 58 (1983). doi:10.1086/160758
Welch, G.A., Sage, L.J., Young, L.M.: Astrophys. J. 725, 100 (2010). arXiv:1009.5259. doi:10.1088/0004-637X/725/1/100
Worthey, G.: Astrophys. J. Suppl. Ser. 95, 107 (1994). doi:10.1086/192096
Acknowledgements
This work was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia through the project no. 176021, “Visible and Invisible Matter in Nearby Galaxies: Theory and Observations”. The author acknowledges numerous useful discussions with Michal Bilek. The usage of the HyperLeda database (http://leda.univ-lyon1.fr) is acknowledged. The author expresses his gratitude to the referee for numerous useful suggestions which helped to significantly improve the manuscript.
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Samurović, S. Globular clusters kinematics and dynamical models of the massive early-type galaxy NGC 1399. Astrophys Space Sci 361, 199 (2016). https://doi.org/10.1007/s10509-016-2789-x
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DOI: https://doi.org/10.1007/s10509-016-2789-x