The new picture is amongst the most detailed wide - field views of this object ever taken and shows the many glowing red gas
clouds in the spiral arms with particular clarity.
Not exact matches
Here and there small milky patches are to be discerned
in the sky, which the telescope shows to be
spiral clouds containing sparks of brilliance.
«Inside a teardrop of glass I've formed a nebula of swirling blue, green and yellow
clouds which
spiral down into the centre of the pendant» Such a beautiful description, the process involved
in Glenn's work is really fascinating, (not to mention educational).
[4]
Spiral galaxies have an obvious disc structure, with a distended bulge of stars
in the centre and surrounded by a diffuse
cloud of stars called a halo.
Young star clusters and
clouds of hydrogen that formed
in our galaxy help trace the shapes of the Milky Way's arms, so astronomers are reasonably certain that it has a
spiral structure (see right).
Instead of using visible light, Dame and others map the Milky Way by looking for radio emissions from molecular gas
clouds and massive, young stars, both of which typically reside
in spiral arms.
We know that about 4.6 billion years ago,
in an outer
spiral arm of the Milky Way, a dense
cloud of hydrogen gas and dust began to collapse
in on itself.
Its source appears to be a glowing
cloud of warm molecular hydrogen,
in the
spiral galaxy Messier 83.
The island of Jan Mayen is
in the center of the image and the flow around its topography results
in the formation of
spiraling cloud patterns known as «von Karman vortices».
As astronomers report online today
in Nature, magnetic fields inside M33's six most massive giant molecular
clouds — large concentrations of dense gas and dust that give birth to stars — line up with the
spiral arms, suggesting the magnetic fields helped create the huge
clouds and that they regulate how the
clouds fragment to form new stars.
The scientists analyzed radio emission from Carbon Monoxide (CO) molecules
in giant gas
clouds along M51's
spiral arms.
«Our results show, for the first time, how the density wave operates on a
cloud -
cloud scale, and how it promotes and prevents star formation
in spiral arms,» Aalto said.
Astronomers studying gas
clouds in the famous Whirlpool Galaxy have found important clues supporting a theory that seeks to explain how the spectacular
spiral arms of galaxies can persist for billions of years.
The astronomers applied techniques used to study similar gas
clouds in our own Milky Way to those
in the
spiral arms of a neighbor galaxy for the first time, and their results bolster a theory first proposed
in 1964.
Based on the distribution of dust
clouds in other galaxies, it can be concluded that they are often most conspicuous within the
spiral arms, especially along the inner edge of well - defined ones.
The present work is a follow - up to a 2010 study, led by Dr. David Martínez - Delgado (University of Heidelberg), which used small robotic telescopes to image eight isolated
spiral galaxies, and found the signs of mergers — shells,
clouds and arcs of tidal debris —
in six of them.
Some are found
in globular clusters, but most move
in a huge
cloud around the disk called the galactic halo, which has a luminous inner component defined by globular star clusters and other easily observable stars (with coronae of hot gas possibly expelled by supernovae and of high - velocity neutron stars) and an outer dark - matter component inferred from its gravitational impact on the Milky Way's
spiral disk.
A similar statement can be made concerning many stars
in spiral galaxies and gas
clouds that surround some galaxies.b These stars and gas
clouds have such high velocities that they should have broken their «gravitational bonds» long ago — if they were billions of years old.
Just a few days ago, the ESA released this Hubble image of a pair of barred
spiral galaxies some 350 million light years away
in the process of merging, their two galactic nuclei still separated by a massive distance but throwing out
clouds of hot gas and mid-formation stars.
Another large collection of
spiral galaxies
in Canes Venatici, the dominant members are probably M106, NGC 4096 and NGC 4490, but there are many other galaxy groups
in this area of the sky and this whole region is known as the Canes
Cloud.
Plots of speed - grouped hydrogen
clouds in our Galaxy traced the arms of the Milky Way and discovered that its outer
spiral disk is warped.
These included the nearest region to us, the Orion Nebula found
in the sword of the Orion constellation, and the enormous Rosette Nebula
in the Large Magellanic
Cloud dwarf galaxy that orbits our giant
spiral galaxy, the Milky Way.
N ~ 2 seen
in the
spiral arms
in M81 and M101 supports the scenario of star formation triggered by
cloud -
cloud collisions enhanced by
spiral density wave, while N ~ 1 derived
in giant HII regions
in M101 suggests the star formation induced by the Parker instability triggered by high velocity HI gas infall.
Astronomer Vera Cooper Rubin found over decades of radio observations that the rotational velocity of
clouds of ionized hydrogen (HII regions)
in spiral galaxies like the Milky Way was not decreasing at increasing distance from their galactic cores, like the velocity of the planets around the Sun.
Nobody wants this party to crash but, there are
clouds on the horizon that could derail everything and send car sales into a
spiral as bad as anything we've ever seen
in this industry.
[5] Link then places a basin of Pumpkin Soup
in an island of the Thunderhead to lure the beast out of the
cloud sea and, with the aid of his Loftwing and the newly - learned technique
Spiral Charge, removes the parasites.
They include; Solar activity, variations
in the orbit of the Earth around the Sun, variations to the degree, or angle, of the Earth's axis, tidal forces from our Moon, cosmic rays that affect
cloud formation, movement through the
spiral arms of the Milky Way galaxy, and the composition of the Earths atmosphere, to name a few.
ISDAC flight 16 was flown
in a pattern that included
spirals over the ARM Climate Research Facility North Slope site at Barrow, thereby allowing us to use the surface - based millimeter wavelength
cloud radar (MMCR)
in addition to the airborne X-band radar that flew on the Convair - 580.
Fortunately we have a lot of big windows so our house stays pretty bright most of the time, yet when the
clouds hang over us on the dreariest of Seattle days and the winds begin to howl, it's up to me to not let myself get swept up
in the downward
spiral of darkness I see around me right outside those windows.