The Galactic mass distribution from the LAMOST Galactic spectroscopic surveys

Autor:	X. W. Liu, C. Wang, M. S. Xiang, H. B. Yuan, H. W. Zhang, Yang Huang, Bingqiu Chen
Rok vydání:	2017
Předmět:	Physics Mass distribution Milky Way Dark matter Astronomy and Astrophysics Virial mass Astrophysics::Cosmology and Extragalactic Astrophysics Escape velocity Astrophysics Galaxy LAMOST Space and Planetary Science Astrophysics::Galaxy Astrophysics Galaxy rotation curve
Zdroj:	Proceedings of the International Astronomical Union. 12:220-221
ISSN:	1743-9221 1743-9213
DOI:	10.1017/s1743921317006378
Popis:	Using the data from the LAMOST Galactic spectroscopic surveys and some other surveys, we have started a series of work to measure the mass distribution of our Galaxy. As a result of the first-stage, we have constructed the Galactic rotation curve out to 100 kpc and the Galactic escape velocity curve between 5 and 14 kpc. From the two curves, we have built parametrized mass models for our Galaxy, respectively. Both models yield a similar result for the Milky Way's virial mass: ~ 0.9 × 1012 M⊙.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0e23d33562e8b9bf76e075b678ffb078 https://doi.org/10.1017/s1743921317006378 Zobrazit plný text záznamu Plný text ve formátu PDF