... Astronomy Picture of the Day . The Spiral Arms of NGC 4622 . << Yesterday . 21.02.2004 . Tomorrow >> . ... in the constellation Centaurus , NGC 4622's gorgeous outer spiral arms , traced by bright bluish star clusters and dark dust ...

... Observational Determination of the Nature of Galactic Spiral Arms. ... 109017 Moscow, Russia . A test for the determination of the nature of the generation of spiral arms in galaxies is proposed. ...

... 2004 February 21 . The Spiral Arms of NGC 4622 . ... in the constellation Centaurus , NGC 4622's gorgeous outer spiral arms , traced by bright bluish star clusters and dark dust ...

... by a composite of two logarithmic spiral arms and a circular ring (radius ~10 kpc ... The two spiral arms appear to start at the ends of a bar in the nuclear region and ...

... New research finds that spiral arms are self-perpetuating, persistent, and surprisingly long-lived. ... long-standing questions about the origin and life history of spiral arms in disk galaxies. т??We show for the first time that ...

... Three Dimensional Magnetohydrodynamic Simulations: Effects of Steady Spiral Arms ... galaxies in the gravitational potential of a disk, bulge, halo, and spiral arms ... by disturbance due to gravitational potential of spiral arms in early phase ...

... of spiral galaxy M100 obtained with NASA's Hubble Space Telescope resolves individual stars within the majestic spiral arms ...

... in the stellar ring, and an extra pair of spiral arms packed with young stars ... of galaxies, it is uncommon to have spiral arms full of young stars in the cores ... lanes of dust and a pair of blue spiral arms are just outside the star-forming ring ...

... Spiral arms are home to much more than just the brightest stars, however. ... Spread along the bright spiral arms can be seen prominent dark lanes, clouds of ... The spiral arms are lit up by the extraordinary luminous young massive stars that ...

... Astronomers are announcing today that some spiral arms of our Milky Way galaxy may ... Massive stars are known to form preferentially along spiral arms of galaxies. ... This is because the spiral arms compress the gas in giant interstellar clouds to ...