Spectroscopic observations of superthin galaxies
1981; IOP Publishing; Volume: 250; Linguagem: Inglês
10.1086/159349
ISSN1538-4357
Autores Tópico(s)Stellar, planetary, and galactic studies
Resumoview Abstract Citations (91) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Spectroscopic observations of superthin galaxies. Goad, J. W. ; Roberts, M. S. Abstract Spectroscopic observations of the superthin galaxies UGC 4278, 7170, 7321, and 9242 with 4 and 2.1 m telescopes, are reported to demonstrate how the morphology, kinematics and line ratios of a superthin galaxy may be interrelated. Comparisons are also made with two related edge-on systems. The superthin galaxies are characterized by modest central velocity gradients, an underabundance of nitrogen, and very thin disks with little evidence of a central luminosity concentration. The mean H I content is roughly 10% of the estimated match, which is a value close to the mean for late-type Sd spirals, and large-scale galactic shocks may be nonexistent in the disks due to the modest central concentration of mass. Publication: The Astrophysical Journal Pub Date: November 1981 DOI: 10.1086/159349 Bibcode: 1981ApJ...250...79G Keywords: Abundance; Astronomical Spectroscopy; Disk Galaxies; Galactic Structure; Spiral Galaxies; Galactic Rotation; Hydrogen Atoms; Luminous Intensity; Nitrogen; Shock Waves; Astrophysics full text sources ADS | data products SIMBAD (18) NED (14)
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