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 2017: 121.03

Open Access
Online
ISSN
2543-6376
See all formats and pricing
More options …
Volume 24, Issue 4

Issues

On the Possibility of Determining the Distance to the Galactic Center from the Geometry of Spiral Arm Segments

I. I. Nikiforov
  • Department of Celestial Mechanics, Saint Petersburg State University, Universitetskij Prospekt 28, Staryj Peterhof, Saint Petersburg 198504, Russian Federation
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ A. V. Veselova
  • Department of Celestial Mechanics, Saint Petersburg State University, Universitetskij Prospekt 28, Staryj Peterhof, Saint Petersburg 198504, Russian Federation
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2017-02-18 | DOI: https://doi.org/10.1515/astro-2017-0240

Abstract

A new approach to determining the solar galactocentric distance, R0, from the geometry of spiral-arm segments is proposed. Geometric aspects of the problem are analyzed and a simplified three-point method for estimating R0 from objects in a spiral segment is developed in order to test the proposed approach. An estimate of R0 = 8.44 ± 0.45 kpc is obtained by applying the method to masers with measured trigonometric parallaxes, and statistical properties of the R0 estimation from spiral segments are analyzed.

Keywords: Galaxy: structure; Galaxy: fundamental parameters; masers

REFERENCES

  • Bajkova A. T., Bobylev V. V. 2015, Baltic Astronomy, 24, 43Google Scholar

  • Bobylev V. V., Bajkova A. T. 2014, MNRAS, 437, 1549Google Scholar

  • Efremov Yu. N. 2011, Astronomy Reports, 55, 108Google Scholar

  • Francis C., Anderson E. 2012, MNRAS, 422, 1283Google Scholar

  • Jílková L., Carraro G., Jungwiert B., Minchev I. 2012, A&A, 541, AA64Google Scholar

  • Nikiforov, I.I. 2004, in Order and Chaos in Stellar and Planetary Systems, eds. G. G. Byrd et al., ASP Conf. Ser., 316, 199Google Scholar

  • Nikiforov I. I., Shekhovtsova T. V. 2001, in Stellar Dynamics: from Classic to Modern, eds. L. P. Ossipkov & I. I. Nikiforov, St. Petersburg Univ. Press, 28Google Scholar

  • Reid M. J., Menten K. M., Brunthaler A. et al. 2014, ApJ, 783, 130Google Scholar

  • Xu Y., Li J. J., Reid M. J. et al. 2013, ApJ, 769, 15Google Scholar

About the article

Received: 2015-11-02

Accepted: 2015-11-30

Published Online: 2017-02-18

Published in Print: 2015-12-01


Citation Information: Open Astronomy, Volume 24, Issue 4, Pages 387–394, ISSN (Online) 2543-6376, DOI: https://doi.org/10.1515/astro-2017-0240.

Export Citation

© 2015 I. I. Nikiforov 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

Comments (0)

Please log in or register to comment.
Log in