Measure the local dark matter density with LAMOST spectroscopic survey
Abstract
The local dark matter density plays the key role in the distribution of the dark matter halo near the Galactic disk. It will also answer whether a dark matter disk exists in the Milky Way. We measure the local dark matter density with LAMOST observed stars located at around the north Galactic pole. The selection effects of the observations are well considered and corrected. We find that the derived DM density, which is around 0.0159+0.0047 -0.0057 M ⊙ pc-3 providing a flat local rotation curve.
- Publication:
-
The General Assembly of Galaxy Halos: Structure, Origin and Evolution
- Pub Date:
- August 2016
- DOI:
- 10.1017/S1743921315009667
- Bibcode:
- 2016IAUS..317..330L
- Keywords:
-
- Galaxy: kinematics and dynamics;
- Galaxy: disc;
- dark matter