Home > Papers

 
 
The Rotation Curve of our Galaxy with trigonometric parallax measurements
Weibin Shi * #
School of Space Science and Physics, Shandong University at Weihai, Weihai, 264209, China
*Correspondence author
#Submitted by
Subject:
Funding: The research is supported by the National NaturalScience foundation of China （No.Grant No.11178013）
Opened online:24 December 2013
Accepted by: none
Citation: Weibin Shi.The Rotation Curve of our Galaxy with trigonometric parallax measurements[OL]. [24 December 2013] http://en.paper.edu.cn/en_releasepaper/content/4571744
 
 
The rotation curve of our Galaxy is derived from a large sample of objects with known radial velocities and distances. We collect data as completely as possible, especially the data with accurately measured trigonometric parallaxes. These observations are used to construct a highly accurate rotation curve of the Galaxy. We discuss how to optimize the source selection for fitting the rotation curve. For each sample we adopted new selection criteria that remove data with large errors. We adopt the more reasonable Galactic constants R0 =8.0kpc, V0 = 220.0km/s. The results show that the fitting curve is a little bit highr for the outer Galaxy and lower for the inner Galaxy than previous results. For the first time we give out the errors of the formulary parameters.
Keywords:galaxies: Galaxy structure -- galaxies: spiral -- galaxies：Rotation curve
 
 
 

For this paper
  • ● PDF (0B)
  • ● Revision 0 　　
  • ● Print this paper
  • ● Recommend this paper to a friend
  • ● Add to my favorite list

    Saved Papers

    Please enter a name for this paper to be shown in your personalized Saved Papers list

Tags
Add yours

Related Papers

Statistics
PDF Downloaded 234
Bookmarked 0
Recommend 5
Comments Array
Submit your papers