Reconstructing Deconstruction: High-Velocity Cloud Distance Through Disruption Morphology
Astrophysics
2008-11-26 v1
Abstract
We present Arecibo L-band Feed Array 21-cm observations of a sub-complex of HVCs at the tip of the Anti-Center Complex. These observations show morphological details that point to interaction with the ambient halo medium and differential drag within the cloud sub-complex. We develop a new technique for measuring cloud distances, which relies upon these observed morphological and kinematic characteristics, and show that it is consistent with H-alpha distances. These results are consistent with distances to HVCs and halo densities derived from models in which HVCs are formed from cooling halo gas.
Cite
@article{arxiv.astro-ph/0610429,
title = {Reconstructing Deconstruction: High-Velocity Cloud Distance Through Disruption Morphology},
author = {J. E. G. Peek and M. E. Putman and Christopher F. McKee and Carl Heiles and Snezana Stanimirovic},
journal= {arXiv preprint arXiv:astro-ph/0610429},
year = {2008}
}
Comments
8 pages, 2 figures, 1 tabe, Accepted to ApJ