Published March 15, 1988
| Version v1
Journal article
Dark matter in the dwarf galaxy II Zwicky 40
Creators
- 1. Royal Greenwich Observatory, Hailsham (UK)
- 2. European Southern Observatory, Garching (Germany, F.R.)
- 3. Bonn Univ. (Germany, F.R.). Radioastronomisches Inst.
Description
H I observations of the Blue Compact Dwarf galaxy II Zwicky 40 at high angular resolution reveal the presence of two kinematical systems. The H I structure and kinematics can be understood in terms of two interacting H I clouds, each cloud consisting of about 2 x 108 solar masses of neutral gas. The optical emission is located at the centre of the northern cloud and might be the result of recent star formation which is triggered by the interaction. We estimate total masses of order 3 x 109 solar masses for each cloud. This exceeds the visible mass by an order of magnitude and indicates the presence of dark matter in II Zwicky 40. (author)
Additional details
Publishing Information
- Journal Title
- Mon. Not. R. Astron. Soc.
- Journal Volume
- 231
- Journal Issue
- 2
- Series
- Mon. Not. R. Astron. Soc.
- Journal Page Range
- 63P-67P
- ISSN
- 0035-8711
- CODEN
- MNRAA
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 19070651
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- DYNAMICS; EXPERIMENTAL DATA; GALAXIES; GHZ RANGE 01-100; H1 REGIONS; MAPS; MASS; NONLUMINOUS MATTER; RADIAL VELOCITY; RADIOWAVE RADIATION; SPATIAL DISTRIBUTION; STAR EVOLUTION; VISIBLE RADIATION
- Descriptors DEC
- COSMIC RADIO SOURCES; DATA; DISTRIBUTION; ELECTROMAGNETIC RADIATION; FREQUENCY RANGE; GHZ RANGE; INFORMATION; MATTER; MECHANICS; NUMERICAL DATA; RADIATIONS; VELOCITY