Published November 1990 | Version v1
Journal article Metadata-only

H I studies of the Sculptor group galaxies. VI. NGC 300

Creators

  • 1. Marseille, Observatoire (France)
  • 2. Observatoire du Mont Megantic, Montreal (Canada)
  • 3. Montreal Universite (Canada)
  • 4. National Radio Astronomy Observatory, Socorro, NM (USA)

Description

A study of the kinematics of the Sculptor group galaxy NGC 300 is presented. VLA observations of the H I line show a dramatically warped H I disk just outside the optical disk. A two-component mass model, fitted to the data, gives a total mass of 2.4 x 10 to the 10th solar masses at the last observed point of the rotation curve. This value implies an M/L(B)global about 11 solar masses/solar luminosity for the galaxy which is compared with the total dynamical M/L(B)dyn of the group. This comparison suggests that dark matter is probably more concentrated around the galaxies of the group than uniformly distributed in the intergalactic medium. 25 refs

Additional details

Publishing Information

Journal Title
Astronomical Journal
Journal Volume
100
Series
Astron. J.
Journal Page Range
1468-1476
ISSN
0004-6256
CODEN
ANJOA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
22032979
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
GALAXIES; GALAXY CLUSTERS; H1 REGIONS; INTERGALACTIC SPACE; LUMINOSITY; MASS; MASS DISTRIBUTION; MATHEMATICAL MODELS; MORPHOLOGICAL CHANGES; NONLUMINOUS MATTER; SPIRAL CONFIGURATION
Descriptors DEC
CONFIGURATION; COSMIC RADIO SOURCES; DISTRIBUTION; MATTER; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; SPACE; SPATIAL DISTRIBUTION