NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-20 T00:42:55 PDT
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For refcode 1994AJ....108..896M:
Retrieve 492 NED objects in this reference.
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Copyright by American Astronomical Society. Reproduced by permission
1994AJ....108..896M ARM STRUCTURE IN NORMAL SPIRAL GALAXIES. I. MULTIVARIATE DATA FOR 492 GALAXIES CHRISTOPHER MAGRI Department of Astronomy and National Astronomy and Ionosphere Center, Cornell University, Ithaca, New York 14853 Received 1993 October 7; revised 1994 April 29 ABSTRACT Multivariate data have been collected as part of an effort to develop a new classification system for spiral galaxies, one which is not necessarily based on subjective morphological properties. A sample of 492 moderately bright northern Sa and Sc spirals was chosen for future statistical analysis. New observations were made at 20 and 21 cm; the latter data are described in detail here. IRAS fluxes were obtained from archival data. Finally, new estimates of arm pattern randomness and of local environmental harshness were compiled for most sample objects.
Retrieve 492 NED objects in this reference.
Please click here for ADS abstract

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