CHAPTER


DOI :10.26650/PB/PS01.2021.001.003   IUP :10.26650/PB/PS01.2021.001.003    Full Text (PDF)

Kinematics and Dynamics of the Galactic Disc

Martín López Corredoira

The Milky Way disc presents a warp, a flare, lopsidedness and other deviations from a purely axisymmetrical double exponential density component, both for the stellar and the gas component. Moreover, recent large-scale extended kinematics maps of Gaia data have shown significant departures from circularity in the mean orbits with radial Galactocentric velocities between -20 and +20 km/s and vertical velocities between -10 and +10 km/s, asymmetries northern/southern and other anomalies. The observed features are sensitive to internal and external forces, especially at the largest Galactocentric distances. Here we review some of the Galactic dynamics hypotheses that explain these anomalies: either in terms of gravitational interaction, magnetic fields, accretion of intergalactic matter or others. The gravitational interaction may be among the different components of the Galaxy or between the Milky Way and another companion galaxy. The accretion of intergalactic matter may be either into the halo, with a later gravitational interaction between the misaligned halo and the disc, or directly onto the disc. Most of the relevant observations are explained in terms of the accretion of intergalactic matter onto a disc that is far from a simple stationary configuration in rotational equilibrium. Other hypotheses only partially explain some observations.



References

  • Ak, S., Bilir, S., Karaali, S., Buser, R., Cabrera-Lavers, A., 2007, NewA, 12, 605 google scholar
  • Amôres, E.B., Robin, A.C., Reylé, C., 2017, A&A, 602, A67 google scholar
  • Bahcall, J.N., Soneira, R.M., 1980, ApJS, 44, 73 google scholar
  • Bailin, J., 2003, ApJ, 583, L79 google scholar
  • Baldwin, J.E., Lynden-Bell, D., Sancisi, R., 1980, MNRAS, 193, 313 google scholar
  • Banerjee, A., Jog, C.J., 2007, ApJ, 662, 335 google scholar
  • Battaner, E., Florido, E., 1995, MNRAS, 277, 1129 google scholar
  • Battaner, E., Florido, E., Sánchez-Saavedra M. L., 1990, A&A, 236, 1 google scholar
  • Battaner, E., Garrido, J.L., Sánchez-Saavedra, M.L., Florido, E., 1991, A&A, 251, 402 google scholar
  • Battaner, E., Jiménez-Vicente, J., 1998, A&A, 332, 809 google scholar
  • Bournaud, F., Combes, F., Jog, C.J., Puerari, I., 2005, A&A, 438, 507 google scholar
  • Bovy, J., Tremaine, S., 2012, ApJ, 756, 89 google scholar
  • Burke, B.F., 1957, AJ, 62, 90 google scholar
  • Burkert, A., Yoshii, Y., 1996, MNRAS, 282, 1349 google scholar
  • Casagrande, L., Schönrich, R., Asplund, M., Cassisi, S., Ramírez, I., Meléndez, J., Bensby, T., Feltzing, S., 2011, A&A, 530, A138 google scholar
  • Castro Rodríguez, N., López-Corredoira, M., Sánchez-Saavedra, M. L., Battaner, E., 2002, A&A, 391, 519 google scholar
  • Chequers, M. H., Widrow, L. M., 2017, MNRAS, 472, 2751 google scholar
  • Chrobáková, Ž, et al., 2019, in Preparation google scholar
  • Comerón, S., Elmegreen, B.G., Knapen, J.H. et al., 2011, ApJ, 741, 28 google scholar
  • Dubinski, J., Chakrabarty, D., 2009, ApJ, 703, 2068 google scholar
  • Dury, V., de Rijcke, S., Debattista, V.P., Dejonghe, H., 2008, MNRAS, 387, 2 google scholar
  • Dutton, A.A., 2009, MNRAS, 396, 121 google scholar
  • Elwert, G., Hablick, D., 1965, ZA, 61, 273 google scholar
  • Fall, S.M., Efstathiou, G., 1980, MNRAS, 193, 189 google scholar
  • Ferguson, A.M.N., Clarke, C.J., 2001, MNRAS, 325, 781 google scholar
  • Freeman, K., 1970, AJ, 160, 811 google scholar
  • Freudenreich, H.T., 1998, AJ, 492, 495 google scholar
  • Gaia Collaboration, Brown, A.G.A., Vallenari, A., Prusti, T. et al., 2018, A&A, 616, A11 google scholar
  • García-Ruiz, I., Kuijken, K., Dubinski, J., 2002a, MNRAS, 337, 459 google scholar
  • García-Ruiz, I., Sancisi, R., Kuijken, K., 2002b, A&A, 394, 769 google scholar
  • Gilmore, G., Reid, N., 1983, MNRAS, 202, 1025 google scholar
  • Griv, E., Gedalin, M., Yuan, C., 2002, ApJ, 580, L27 google scholar
  • Haan, S., Braun, R., 2014, MNRAS, 440, L21 google scholar
  • Haines, T., D’onghia, E., Famaey, B., Laporte, C., Hernquist, L., 2019, ApJ, 879, L15 google scholar
  • Hagen, J. H. J., Helmi, A., 2018, A&A, 615, A99 google scholar
  • Haywood, M., Di Matteo, P., Lehnert, M., Katz, D., Gómez, A., 2013, A&A, 560, A109 google scholar
  • Huang, S., Carlberg, R.G., 1997, ApJ, 480, 503 google scholar
  • Hunter, C., Toomre, A., 1969, ApJ, 155, 747 google scholar
  • Jiang, I., Binney, J., 1999, MNRAS, 303, L7 google scholar
  • Jog, C.J., 1997, AJ, 488, 642 google scholar
  • Jog, C.J., Combes, F., 2009, PhR, 471, 75 google scholar
  • Jones, B.J.T., Wyse, R.F.G., 1983, A&A, 120, 165 google scholar
  • Kalberla, P.M.W., Dedes, L., 2008, A&A, 487, 951 google scholar
  • Kalberla, P.M.W., Dedes, L., Kerp, J., Haud, U., 2007, A&A, 469, 511 google scholar
  • Kim, J. H., Peirani, S., Kim, S., Ann, H. B., An, S.-H., Yoon, S.-J., 2014, ApJ, 789, 90 google scholar
  • Levine, E.S., Blitz, L., Heiles, C., 2006, ApJ, 643, 881 google scholar
  • Levine, S.E., Sparke, L.S., 1998, ApJ, 496, L13 google scholar
  • Lin, D.N.C., Pringle, J.E., 1987, ApJ, 320, L87 google scholar
  • Loebman, S.R., Ivezić, Ž., Quinn, T.R., Governato, F., Brooks, A.M., Christensen, C.R., Jurić, M., 2012, ApJ, 758, L23 google scholar
  • López-Corredoira, M., Allende Prieto, C., Garzón, F., Wang, H., Liu, C., Deng, L., 2018, A&A, 612, L8 google scholar
  • López-Corredoira, M., Betancort-Rijo, J.E., 2009, A&A, 493, L9 google scholar
  • López-Corredoira, M., Betancort-Rijo, J.E., Beckman, J.E., 2002b, A&A, 386, 169 google scholar
  • López-Corredoira, M., Cabrera-Lavers, A., Garzón, F., Hammersley, P.L., 2002a, A&A, 394, 883 google scholar
  • López-Corredoira, M., Cabrera-Lavers, A., Gerhard, O.E., Garzón, F., 2004, A&A, 421, 953 google scholar
  • López-Corredoira, M., Garzón, F., Wang, H.-F., Sylos Labini, F., Nagy, R., Chrobáková, Z., Chang, J., Villarroel, B., 2020, A&A, 634A, 66 google scholar
  • López-Corredoira, M., Molgó, J., 2014, A&A, 567, A106 google scholar
  • López-Corredoira, M, Sylos Labini, F., 2019, A&A, 621, A48 google scholar
  • Mateu, C., Vivas, A.K., Downes, J.J., Briceño, C., 2011, RMxAC, 40, 245 google scholar
  • Mayor, M., Vigroux, L., 1981, A&A 98, 1 google scholar
  • Minniti, D., Saito, R.K., Alonso-García, J., Lucas, P.W., Hempel, M., 2011, ApJ, 733, L43 google scholar
  • Moni Bidin, C., Carraro, G., Méndez, R.A., Smith, R., 2012, ApJ, 751, 30 google scholar
  • Moni Bidin, C., Smith, R., Carraro, G., Méndez, R.A., Moyano, M., 2015, RMxAC, 46, 105 google scholar
  • Nakanishi, H., Sofue, Y., 2003, PASJ, 55, 191 google scholar
  • Narayan, C.A., Jog, C.J., 2002, A&A, 390, L35 google scholar
  • Ohta, K., Hamabe, M., Wakamatsu, K., 1990, ApJ, 357, 71 google scholar
  • Ostriker, E.C., Binney, J.J., 1989, MNRAS, 237, 785 google scholar
  • Qu, Y., Di Matteo, P., Lehnert, M.D., van Driel, W., 2011, A&A, 530A, 10 google scholar
  • Revaz, Y., Pfenninger, D., 2001, In: Gas and Galaxy Evolution (Asp Conf. 240), J. E. Hibbard, M. Rupen, J. H. Van Gorkom, Eds., Asp, S. Francisco, 278 google scholar
  • Revaz, Y., Pfenniger D., 2004, A&A, 425, 67 google scholar
  • Reylé, C., Marshall, D.J., Robin, A.C., Schultheis, M., 2009, A&A, 495, 819 google scholar
  • Robinson, B.J., Manchester, R.N., Whiteoak, J.B., Otrupcek, R.E., Mccutcheon, W.H., 1988, A&A, 193, 60 google scholar
  • Rogstad, D.H., Lockhart, I.A., Wright, M.C.H., 1974, ApJ, 193, 309 google scholar
  • Roškar, R., Debattista, V.P., Brooks, A.M., Quinn, T.R., Brook, C.B., Governato, F., Dalcanton, J. J., Wadsley, J., 2010, MNRAS, 408, 783 google scholar
  • Saha, K., Combes, F., Jog, C.J., 2007, MNRAS, 382, 419 google scholar
  • Saha, K., Jog, C.J., 2006, A&A, 446, 897 google scholar
  • Sales, L.V., Helmi, A., Abadi, M.G. et al., 2009, MNRAS, 400, L61 google scholar
  • Sánchez Almeida, J., Elmegreen, B.G., Muñoz-Tuñón, C., Elmegreen, D.M., 2014, A&ARv, 22, 71 google scholar
  • Sánchez-Martín, P., Romero-Gómez, M., Masdemont, J.J., 2016, A&A, 588, A76 google scholar
  • Sánchez-Salcedo, F.J., 2006, MNRAS, 365, 555 google scholar
  • Sánchez-Salcedo, F.J., Reyes-Ruiz, M., 2004, ApJ, 607, 247 google scholar
  • Sánchez-Salcedo, F.J., Flynn, C., de Diego, J.A., 2016, ApJ, 817, 13 google scholar
  • Sánchez-Saavedra, M.L., Battaner, E., Guijarro, A., López-Corredoira, M., Castro-Rodríguez, N., 2003, A&A, 399, 457 google scholar
  • Skowron, D. M., Skowron, J., Mróz, P. et al., 2019, Science, 365, 478 google scholar
  • Sofue, Y., Honma, M., Omodaka, T., 2009, PASJ, 61, 227 google scholar
  • Spitzer, L., 1942, ApJ, 95, 329 google scholar
  • Tunçel Güçtekin, S., Bilir, S., Karaali, S., Plevne, O., Ak, S., 2019, AdSpR, 63, 1360 google scholar
  • Vaucouleurs, G. de, 1959, Handbuch Der Physik, 53, 311 google scholar
  • Vaucouleurs, G. de, Pence, W.D., 1978, AJ, 83, 1163 google scholar
  • Villumsen, J.V. 1983, ApJ, 274, 632 google scholar
  • Voskes, T., 1999, M.Sc. Thesis, Univ. Leiden [Arxiv:Astro-Ph/0601653] google scholar
  • Wang, H.-F., Liu, C., Xu, Y., Wan, J.-C., Deng, L., 2018, MNRAS, 478, 3367 google scholar
  • Weinberg, M., 1998, MNRAS, 299, 499 google scholar
  • Xiang, M-S., Liu, X.W., Yuan, H.B. et al., 2015, RAA, 15, 1209 google scholar
  • Yoshii, Y., Sommer-Larsen, J., 1989, MNRAS, 236, 779 google scholar
  • Zaritsky, D., Rix, H.-W., 1997, ApJ, 477, 118 google scholar


SHARE




Istanbul University Press aims to contribute to the dissemination of ever growing scientific knowledge through publication of high quality scientific journals and books in accordance with the international publishing standards and ethics. Istanbul University Press follows an open access, non-commercial, scholarly publishing.