Stellar Disk Evolution and Gaseous Disk Turbulence of Dwarf Irregular Galaxies / by Hong-Xin Zhang

By:

Zhang, Hong-Xin [aut]

Resource type: Ressourcentyp: Buch (Online)Book (Online)Language: English Series: Springer Theses, Recognizing Outstanding Ph.D. Research | SpringerLink BücherPublisher: Berlin ; Heidelberg : Springer, 2016Description: Online-Ressource (XIX, 165 p. 50 illus., 35 illus. in color, online resource)ISBN:

9783662528679

Subject(s):

Genre/Form:

Hochschulschrift

Additional physical formats: 9783662528655 | Druckausg.: 978-3-662-52865-5 LOC classification:

QB1-991 QB460-466 QB980-991
QB1-991
QB460-466
QB980-991

DOI: DOI: 10.1007/978-3-662-52867-9Online resources:

Summary: Introduction -- Stellar Disk Evolution of Dwarf Irregular Galaxies -- Turbulence and Multiple Temperature Components of HI Gas in Dwarf Irregular Galaxies -- Nearby Major Mergers.Summary: This book focuses on the stellar disk evolution and gas disk turbulence of the most numerous galaxies in the local Universe – the dwarf galaxies. The “outside-in” disk shrinking mode was established for a relatively large sample of dwarf galaxies for the first time, and this is in contrast to the “inside-out” disk growth mode found for spiral galaxies. Double exponential brightness profiles also correspond to double exponential stellar mass profiles for dwarf galaxies, which is again different from most spiral galaxies. The cool gas distribution in dwarf galaxies was probed with the spatial power spectra of hydrogen iodide (HI) gas emission, and provided indirect evidence that inner disks of dwarf galaxies have proportionally more cool gas than outer disks. The finding that no correlation exists between gas power spectral indices and star formation gave important constraints on the relation between turbulence and star formation in dwarf galaxies.PPN: PPN: 1658666119Package identifier: Produktsigel: ZDB-2-SEB | ZDB-2-SXP | ZDB-2-PHA

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