Hα Velocity Fields and Galaxy Interaction in the Quartet of Galaxies NGC 7769, 7770, 7771 and 7771A

详细信息    查看全文

• 作者：A. A. Yeghiazaryan ; T. A. Nazaryan ; A. A. Hakobyan
• 关键词：Galaxies ; interactions ; galaxies ; star formation ; galaxies ; peculiar ; galaxies ; individual ; NGC 7769 ; NGC 7770 ; NGC 7771 ; NGC 7771A ; supernovae ; individual ; 2003hg
• 刊名：Journal of Astrophysics and Astronomy
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：37
• 期：1
• 全文大小：897 KB
• 参考文献：Ahn, C. P., Alexandroff, R., Allende Prieto, C. et al. 2014, ApJS, 211, 17.ADS CrossRef
  Alonso-Herrero, A., Rosales-Ortega, F. F., Sánchez, S. F. et al. 2012, MNRAS, 425, L46–L50.ADS CrossRef
  Bakos, J., Trujillo, I., Pohlen, M. 2008, ApJ, 683, L103–L106.ADS CrossRef
  Bell, E. F., McIntosh, D. H., Katz, N., Weinberg, M. D. 2003, ApJS, 149, 289–312.ADS CrossRef
  Boulesteix, J., Georgelin, Y., Marcelin, M., Monnet, G. 1984, Instrumentation in Astronomy V, 445, 37–41.ADS CrossRef
  Chengalur, J. N., Salpeter, E. E., Terzian, Y. 1993, ApJ, 419, 30–46.ADS CrossRef
  Di Matteo, P., Combes, F., Melchior, A.-L. Semelin, B. 2007, A&A, 468, 61–81.ADS CrossRef
  Egiazaryan, A. A. 1983, Astrophysics, 19, 345–353.ADS CrossRef
  Elias-Rosa, N., Benetti, S., Marmo, C. et al. 2003, IAU Circ., 8187, 2.ADS
  Elmegreen, B. G. Elmegreen, D. M. 1989, ApJ, 342, 677–679.ADS CrossRef
  Elmegreen, D. M., Elmegreen, B. G. 1987, ApJ, 314, 3–9.ADS CrossRef
  Erwin, P., Beckman, J. E., Pohlen, M. 2005, ApJ, 626, L81—L84.ADS CrossRef
  Hakobyan, A. A., Nazaryan, T. A., Adibekyan, V. Z. et al. 2014, MNRAS, 444, 2428–2441.ADS CrossRef
  Hakobyan, A. A., Petrosian, A. R., McLean, B. et al. 2008, A&A, 488, 523–531.ADS CrossRef
  James, P. A., Anderson, J. P. 2006, A&A, 453, 57–65.ADS CrossRef
  Kazarian, M. A., Adibekyan, V. Z., McLean, B., Allen, R. J., Petrosian, A. R. 2010, Astrophysics, 53, 57–69.ADS CrossRef
  Kazaryan, M. A., Kazaryan, E. S. 1980, Astrophysics, 16, 7–20.ADS CrossRef
  Kazaryan, M. A., Kazaryan, E. S. 1989, Astrophysics, 30, 355–359.ADS CrossRef
  Kendall, S., Kennicutt, R. C., Clarke, C. 2011, MNRAS, 414, 538–564.ADS CrossRef
  Kormendy, J., Norman, C. A. 1979, ApJ, 233, 539–552.ADS CrossRef
  Laval, A., Boulesteix, J., Georgelin, Y. P., Georgelin, Y. M., Marcelin, M. 1987, A&A, 175, 199–207.ADS
  Nazaryan, T. A., Petrosian, A. R., Hakobyan, A. A. et al. 2013, ApSS, 347, 365–374.ADS
  Noguchi, M. 1987, MNRAS, 228, 635–651.ADS CrossRef
  Noordermeer, E., van der Hulst, J. M., Sancisi, R., Swaters, R. A., van Albada, T. S. 2005, A&A, 442, 137–157.ADS CrossRef
  Nordgren, T. E., Chengalur, J. N., Salpeter, E. E., Terzian, Y. 1997, AJ, 114, 77–93.ADS CrossRef
  Toomre, A., Toomre, J. 1972, ApJ, 178, 623–666.ADS CrossRef
  Tortora, C., Napolitano, N. R., Cardone, V. F., et al. 2010, MNRAS, 407, 144–162.ADS CrossRef
  Younger, J. D., Besla, G., Cox, T. J. et al. 2008, ApJ, 676, L21–L24.ADS CrossRef
  
• 作者单位：A. A. Yeghiazaryan (1)
  T. A. Nazaryan (1)
  A. A. Hakobyan (1)
  
  1. Byurakan Astrophysical Observatory, 0213, Byurakan, Aragatsotn Province, Armenia
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Astronomy
  Astrophysics
  
• 出版者：Springer India
• ISSN：0973-7758

文摘

The quartet of galaxies NGC 7769, 7770, 7771 and 7771A is a system of interacting galaxies. Close interaction between galaxies caused characteristic morphological features: tidal arms and bars, as well as an induced star formation. In this study, we performed the Fabry–Perot scanning interferometry of the system in H a line and studied the velocity fields of the galaxies. We found that the rotation curve of NGC 7769 is weakly distorted. The rotation curve of NGC 7771 is strongly distorted with the tidal arms caused by direct flyby of NGC 7769 and flyby of a smaller neighbor NGC 7770. The rotation curve of NGC 7770 is significantly skewed because of the interaction with the much massive NGC 7771. The rotation curves and morphological disturbances suggest that the NGC 7769 and NGC 7771 have passed the first pericenter stage, however, probably the second encounter has not happened yet. Profiles of surface brightness of NGC 7769 have a characteristic break, and profiles of color indices have a minimum at a radius of intensive star formation induced by the interaction with NGC 7771.