Chapters: Centaurus A. Source: Wikipedia. Pages: 45. Not
illustrated. Free updates online. Purchase includes a free trial
membership in the publisher's book club where you can select from
more than a million books without charge. Excerpt: Centaurus A - A
Hubble Space Telescope (HST) image of the dust disk in front of the
nucleus of Centaurus A. Credit: HST/NASA/ESA. This image of the
central parts of Centaurus A reveals the parallelogram-shaped
remains of a smaller galaxy that was gulped down about 200 to 700
million years ago. The image is based on data collected with the
SOFI instrument on ESOs New Technology Telescope at La Silla. The
original image, obtained by observing in the near-infrared through
three different filters (J, H and K) was specially processed to
look through the dust, providing a clear view of the centre. The
field of view is about 4 x 4 arcminutes.Centaurus A may be
described as having a peculiar morphology. As seen from Earth, the
galaxy looks like a lenticular or elliptical galaxy with a
superimposed dust lane. The peculiarity of this galaxy was first
identified in 1847 by John Herschel, and the galaxy was included in
the Atlas of Peculiar Galaxies (published in 1966) as one of the
best examples of a "disturbed" galaxy with dust absorption. The
galaxy's strange morphology is generally recognized as the result
of a merger between two smaller galaxies. The bulge of this galaxy
is comprised mainly of evolved red stars. The dusty disk, however,
has been the site of more recent star formation; over 100 star
formation regions have been identified in the disk. One supernova
has been detected in Centaurus A. The supernova, named SN 1986G,
was discovered within the dark dust lane of the galaxy by R. Evans
in 1986. It was later identified as a type Ia supernova, which
forms when a white dwarf's mass grows large enough to ignite carbon
fusion in its center, touching off a runaway thermonuclear
reaction, as may ...More: http: //booksllc.net/?id=522868
Books + Company
|Country of origin:
||152 x 229 x 3mm (L x W x T)
||Paperback - Trade
Is the information for this product incomplete, wrong or inappropriate?
Let us know about it.
Does this product have an incorrect or missing image?
Send us a new image.
Is this product missing categories?
Add more categories.
Review This Product
No reviews yet - be the first to create one!