Reconstructing Deconstruction: High‐Velocity Cloud Distance through Disruption Morphology | Zendy

J. E. G. Peek | Zendy; M. E. Putman | Zendy; Christopher F. McKee | Zendy; Carl Heiles | Zendy; Snežana Stanimirović | Zendy

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Reconstructing Deconstruction: High‐Velocity Cloud Distance through Disruption Morphology

Author(s) -

J. E. G. Peek,

M. E. Putman,

Christopher F. McKee,

Carl Heiles,

Snežana Stanimirović

Publication year - 2007

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/510189

Subject(s) - halo , point cloud , drag , astrophysics , galactic halo , cloud computing , kinematics , physics , computer science , mechanics , galaxy , classical mechanics , artificial intelligence , operating system

We present Arecibo L-band Feed Array 21-cm observations of a sub-complex ofHVCs at the tip of the Anti-Center Complex. These observations showmorphological details that point to interaction with the ambient halo mediumand differential drag within the cloud sub-complex. We develop a new techniquefor measuring cloud distances, which relies upon these observed morphologicaland kinematic characteristics, and show that it is consistent with H-alphadistances. These results are consistent with distances to HVCs and halodensities derived from models in which HVCs are formed from cooling halo gas.Comment: 8 pages, 2 figures, 1 tabe, Accepted to Ap

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