Does the Second Caustic Ring of Dark Matter Cause the Monoceros Ring of Stars ?

Details Does the Second Caustic Ring of Dark Matter Cause the Monoceros Ring of Stars ? Does the Second Caustic Ring of Dark Matter Cause the Monoceros Ring of Stars ?

2007-04-30

arxiv.org/abs/0705.0001v1

Phys.Rev.D76:023505,2007

Astronomy and Astrophysics

Astrophysics

21 pages, 3 figures

Scientific paper

10.1103/PhysRevD.76.023505

Caustic rings of dark matter were predicted to exist in the plane of the Galaxy at radii $a_n \simeq 40 {\rm kpc}/n$ for $n = 1,2,3 ..$. The recently discovered Monoceros Ring of stars is located near the $n=2$ caustic, prompting us to consider a possible connection between these two objects. We identify two processes through which the Monoceros Ring of stars may have formed. One process is the migration of gas to an angular velocity minimum at the caustic leading to enhanced star formation there. The other is the adiabatic deformation of star orbits as the caustic slowly grows in mass and radius. The second process predicts an order 100% enhancement of the density of disk stars at the location of the caustic ring.

Affiliated with

Also associated with

No associations

Rating

Does the Second Caustic Ring of Dark Matter Cause the Monoceros Ring of Stars ? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Does the Second Caustic Ring of Dark Matter Cause the Monoceros Ring of Stars ?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Does the Second Caustic Ring of Dark Matter Cause the Monoceros Ring of Stars ? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-296915