Ultraviolet: galaxies—galaxies: elliptical and lenticularcD—galaxies: spiral—galaxies: interaction—galaxies: evolution.Dorado is a nearby (17.69Mpc) strongly evolving galaxy group in the Southern Hemisphere. We are investigating the star formation in this group. This paper provides a FUV imaging of...
All host galaxies are luminous ellipticals, except one which is a spiral galaxy, while another one turns out to be a misidentification. We present an album of the images of the B2 radio galaxies observed so far, and give a brief description of the optical morphology of the galaxies. Dust ...
Using a telescope the size of the planet, astronomers have captured the first image of this space oddity. Here's why that matters.
This allows us to study how the relative fractions of spirals, lenticulars, and ellipticals depend on halo mass over a range of 10-10hM, from isolated single-galaxy halos to massive groups and low-mass clusters. We pay particular attention to how morphology relates to central versus satellite...
As a super giant galaxy, M87 is visible to the naked eye from 54 million light years away. But as an elliptical galaxy, it looks like a smudge on the lens. That tiny blue tail is a jet of plasma (one of two) that’s been streaming out of the disk o...
His student Kepler kept his ideas going, as he formulated many laws of planetary motion. He said the orbits around the sun were elliptical, planets don’t move in a uniform speed and the time a planet completes its orbit is related to its distance from the sun. Meanwhile, Florentine ...
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The earth’sshadow on the moon was always round, which would be true only if the earth was spherical. If the earth hadbeen a flat disk, the shadow would have been elongated and elliptical, unless the eclipse always occurred at atime when the sun was directly under the center of the ...
In all cases, absorption is seen redshifted with respect to the galaxy's systemic velocity, or close to the systemic velocity or both. No blueshifted absorption components are seen. These observations demonstrate the infall of H I to the inner regions of radio elliptical galaxies. The ...