Published May 15, 1975 | Version v1
Journal article

Absolute spectrophotometry in M31 and M32

Description

For a number of places in the bulge of M31, and for two places in M32, photometric scans from lambda=3300 A to lambda=10,600 A have been obtained with the multichannel spectrometer on the 5-m Hale telescope. The scans show that in both objects the color temperature (particulary shortward of 5000 A) decreases toward the center, and that the strength of the CN bands increases toward the center in both objects, in agreement with other, earlier observations. The new data can all be interpreted in terms of an increase of heavy-element abundance toward the center in both objects by a factor probably less than 2, and by an excess of heavy elements in M31 compard with M32 by a factor probably greater than 2, in qualitative agreement with earlier conclusions of other observers

Additional details

Identifiers

Publishing Information

Journal Title
The Astrophysical Journal
Journal Volume
198
Journal Issue
1
Series
Astrophys. J.
Journal Page Range
63
ISSN
0004-637X

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
6214313
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
ABSORPTION; COLOR; GALAXIES; GIANT STARS; SPECTROPHOTOMETRY; TEMPERATURE DEPENDENCE; ULTRAVIOLET RADIATION
Descriptors DEC
ELECTROMAGNETIC RADIATION; OPTICAL PROPERTIES; ORGANOLEPTIC PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; STARS

Optional Information

Notes
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