2009ApJ...690L..69B

Query : 2009ApJ...690L..69B

2009ApJ...690L..69B - Astrophys. J., 690, L69-L71 (2009/January-1)

The anisotropic spatial distribution of hypervelocity stars.

BROWN W.R., GELLER M.J., KENYON S.J. and BROMLEY B.C.

Abstract (from CDS):

We study the distribution of angular positions and angular separations of unbound hypervelocity stars (HVSs). HVSs are spatially anisotropic at the 3σ level. The spatial anisotropy is significant in Galactic longitude, not in latitude, and the inclusion of lower velocity, possibly bound HVSs reduces the significance of the anisotropy. We discuss how the observed distribution of HVSs may be linked to their origin. In the future, measuring the distribution of HVSs in the southern sky will provide additional constraints on the spatial anisotropy and the origin of HVSs.

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Journal keyword(s): Galaxy: center - Galaxy: halo - Galaxy: kinematics and dynamics - Galaxy: stellar content

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 [BGK2006] HV 11 HV* 09 59 06.4693989624 +00 08 53.415040128   19.83 19.70     sdA 12 0
2 [BGK2006] HV 14 HV* 10 44 01.7496479016 +06 11 38.997994380     19.89     B 10 0
3 [BGK2006] HV 12 HV* 10 50 09.5966400120 +03 15 50.619146796   20.2 19.76 19.8   sd 21 0
4 [BGK2006] HV 13 HV* 10 52 48.3065102592 -00 01 33.870967284   20.33 20.16     B 19 0
5 [BGK2006] HV 15 HV* 11 33 41.0930661720 -01 21 14.317169544   19.35 19.33     B 19 0
6 [BGK2006] HV 16 HV* 12 25 23.4044930736 +05 22 33.899852892     19.49     B 12 0

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