NDLI: Ionized gas kinematics at high resolution. iv. star formation and a rotating core in the medusa (ngc 4194)

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Ionized gas kinematics at high resolution. iv. star formation and a rotating core in the medusa (ngc 4194)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Turner, Jean Greathouse Sr., Thomas Beck, Sara C. Lacy, John Neff, Susan Gale Neff, Susan
Copyright Year	2014
Description	NGC 4194 is a post-merger starburst known as The Medusa for its striking tidal features.We present here a detailed study of the structure and kinematics of ionized gas in the central 0.65 kpc of the Medusa. The data include radio continuum maps with resolution up to 0".18 (35 pc) and a 12.8 micron [Ne II] data cube with spectral resolution approx. 4 km/s: the first high-resolution, extinction-free observations of this remarkable object. The ionized gas has the kinematic signature of a core in solid-body rotation. The starburst has formed a complex of bright compact H II regions, probably excited by deeply embedded super star clusters, but none of these sources is a convincing candidate for a Galactic nucleus. The nuclei of the merger partners that created the Medusa have not yet been identified.
File Size	895553
Page Count	12
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20140016918
Archival Resource Key	ark:/13960/t1xd5wm28
Language	English
Publisher Date	2014-05-06
Access Restriction	Open
Subject Keyword	Ionized Gas Kinematics Ionized Gases High Resolution Starburst Galaxies Embedding Star Clusters Rotation Galactic Nuclei Star Formation Spectral Resolution H Ii Regions Continuums Signatures Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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