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2011

A Grand Rotation Curve and Dark Matter Halo in the Milky Way Galaxy

Sofue, Yoshiaki

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A grand rotation curve of the Milky Way Galaxy is constructed, which covers a wide range of radius from the Galactic Center to ~1 Mpc, and is deconvolved into bulge, disk and halo components by least-squares fitting.

We determined the scale radii and masses of the bulge and disk to be M_b=(1.652 +/-0.083)x10^10 Msun, a_b=(0.522 +/- 0.037) kpc, M_d=(3.41 +/- 0.41)x10^10 Msun and a_d=(3.19 +/- 0.3) kpc.
The dark halo was fitted by the Navaro-Frenk-White (NFW) density profile, rho=rho_0/[(R/h) (1+R/h)^2], and the fit yielded h=12.5 +/- 0.9 kpc and rho_0=(1.06 +/- 0.14)x10^-2 Msun pc^-3.
The local dark matter density near the Sun at R_0=8 kpc is estimated to be rho_0_sun=(6.12 +/-0.80)x10^-3 Msun pc^-3 = 0.235 +/- 0.030 GeV cm^-3.

A Grand Rotation Curve and Dark Matter Halo in the Milky Way Galaxy · Around

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Then

Sofue, Y., Honma, M., Omodaka, T. 2009 PASJ, 61, 227 (Paper I)
2009
Later among the works it cites.
Sofue, Y. 2009 PASJ 61, 153 (Paper II)
2009
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Andreon, S. 2010, MNRAS, 407, 263
2010
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Salucci, P., Nesti, F., Gentile, G., Martins, C. F. 2010 AA 523,83
2010
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Oh, C. S., Kobayashi, H., Honma, M., et al. 2010, PASJ, 62, 101
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Weber, M. and de Boer, W. 2010 AA 509, 25
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