NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
A study of HII regions in spiral galaxies using multiobject spectroscopyMultiobject spectroscopy results of HII regions in nearby late-type spiral galaxies are given. Results include excitation measurements, log ((O III)/H beta), for 81 regions in M 101, 30 regions in NGC 2403, and 13 regions in M 51. Researchers conclude that late-type spirals can be classified into two distinct populations, examine possible causes of this division, and derive metallicity gradients for these galaxies. M 51 appears to have an anomalously shallow abundance gradient.
Document ID
19910004846
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zaritsky, Dennis (Arizona Univ. Tucson., United States)
Elston, Richard (Kitt Peak National Observatory Tucson, AZ., United States)
Hill, J. M. (Arizona Univ. Tucson, AZ, United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1990
Publication Information
Publication: NASA, Ames Research Center, The Interstellar Medium in External Galaxies: Summaries of Contributed Papers
Subject Category
Astrophysics
Accession Number
91N14159
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available