other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
2010MNRAS.402..934M - Mon. Not. R. Astron. Soc., 402, 934-940 (2010/February-3)
The uncertainty in galactic parameters.
McMILLAN P.J. and BINNEY J.J.
Abstract (from CDS):
We find that these data are best fit by models with non-standard values for v☉ or a net peculiar motion of the high-mass star-forming regions. We argue that a correction to v☉ is much more likely and these data support the conclusion of Binney that V☉ should be revised upwards from 5.2 to 11km/s. We find that the values of R0 and v0 that we determine are heavily dependent on the model we use for rotation curve, with model-dependent estimates of R0ranging from 6.7±0.5 to 8.9±0.9kpc, and those of v0 ranging from 200 ±20 to 279±33km/s. We argue that these data cannot be thought of as implying any particular values of R0 or v0. However, we find that v0/R0 is better constrained, lying in the range 29.9 - 31.6km/s/kpc for all models but one.
Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS
Journal keyword(s): methods: statistical - Galaxy: fundamental parameters - Galaxy: kinematics and dynamics
Simbad objects: 4
To bookmark this query, right click on this link: simbad:2010MNRAS.402..934M and select 'bookmark this link' or equivalent in the popup menu