Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Open Astronomy

formerly Baltic Astronomy

Editor-in-Chief: Barbuy, Beatriz


IMPACT FACTOR 2018: 0.350

CiteScore 2018: 0.24

SCImago Journal Rank (SJR) 2018: 0.202
Source Normalized Impact per Paper (SNIP) 2018: 0.144

ICV 2018: 120.66

Open Access
Online
ISSN
2543-6376
See all formats and pricing
More options …
Volume 24, Issue 2

Issues

Galactic Spiral Pattern beyond the Optical Size Induced by the Triaxial Dark Halo

M. Butenko
  • Volgograd State University, Prospekt Universitetskij 100, Volgograd, 400062, Russian Federation
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ A. Khoperskov / S. Khoperskov
  • Dipartimento di Fisica, Università degli Studi di Milano, via Celoria 16, Milano, I-20133, Italy
  • Institute of Astronomy, Russian Academy of Sciences, Pyatnitskaya st. 48, Moscow, 119017, Russian Federation
  • Sternberg Astronomical Institute of Moscow M. V. Lomonosov State University, Universitetskii pr. 13, Moscow, 119992, Russian Federation
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2017-02-18 | DOI: https://doi.org/10.1515/astro-2017-0210

Abstract

We suggest a possible mechanism for the formation of non-tidal gaseous structures in galactic outskirts. According to recent observations, extended spiral structures are detected beyond the optical radii Ropt in numerous disk galaxies. Such features can be clearly seen in deep HI and UV images (e.g., NGC 3198, NGC 3359, NGC 2841, NGC 3198). We argue, based on our gas-dynamical simulations, that such outer spirals could form as a result of the interaction of the galactic disk with the triaxial host dark matter halo.

Keywords: galaxies: kinematics and dynamics; galaxies: spiral; galaxies: structure

REFERENCES

  • Abadi M. G., Navarro J. F., Fardal M. et al. 2010, MNRAS, 407, 435Google Scholar

  • Allgood B., Flores R. A., Primack J. R. et al. 2006, MNRAS, 367, 1781Google Scholar

  • Bertin G., Amorisco N. C. 2010, A&A, 512, A17Google Scholar

  • Bigiel F., Leroy A., Walter F. et al. 2010, AJ, 140, 1194Google Scholar

  • Binney J., Tremaine S. 1987, Galactic Dynamics, Princeton Univ. Press, Princeton, New JerseyGoogle Scholar

  • Boomsma R., Oosterloo T. A., Fraternali F. et al. 2008, A&A, 490, 555Google Scholar

  • Di Cintio A., Brook C. B., Dutton A. A. et al. 2014, MNRAS, 441, 2986Google Scholar

  • Hollenbach D., McKee C. F. 1989, ApJ, 342, 306Google Scholar

  • Khoperskov A. V., Eremin M. A., Khoperskov S. A. et al. 2012, Astronomy Reports, 56, 16Google Scholar

  • Khoperskov A. V., Khoperskov S. A., Zasov A. V. et al. 2013, MNRAS, 431, 1230Google Scholar

  • Khoperskov A. V., Tyurina N. V. 2003, Astronomy Reports, 47, 443Google Scholar

  • Khoperskov S. A., Vasiliev E. O., Khoperskov A. V., Lubimov V. N. 2014, Journal of Physics, Conf. Series, 510, 012011Google Scholar

  • Koribalski B. S., López-Sánchez Á. R. 2009, MNRAS, 400, 1749Google Scholar

  • Radburn-Smith D. J., Roškar R., Debattista V. P. et al. 2012, ApJ, 753, 138Google Scholar

  • Thilker D. A., Bianchi L., Meurer G. et al. 2007, ApJS, 173, 538Google Scholar

  • Valenzuela O., Hernandez-Toledo H., Cano M. et al. 2014, AJ, 147, 27Google Scholar

About the article

Received: 2015-03-25

Accepted: 2015-04-20

Published Online: 2017-02-18

Published in Print: 2015-06-01


Citation Information: Open Astronomy, Volume 24, Issue 2, Pages 119–125, ISSN (Online) 2543-6376, DOI: https://doi.org/10.1515/astro-2017-0210.

Export Citation

© 2015 M. Butenko et al., published by De Gruyter Open. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
M. Dolores Mata-Chávez, Héctor Velázquez, Barbara Pichardo, Octavio Valenzuela, Santi Roca-Fábrega, Héctor Hernández-Toledo, and Erik Aquino-Ortíz
The Astrophysical Journal, 2019, Volume 876, Number 1, Page 6

Comments (0)

Please log in or register to comment.
Log in