galactic plane


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galactic plane

n
(Astronomy) the plane passing through the spiral arms of the Galaxy
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These two structures lie on opposite sides of the Milky Way disk; about 14,000 light years above and below the Galactic plane.
25 during a drift-scan of the southern galactic plane by FAST, and that confirmation was made by the 64-meter Parkes radio telescope in Australia in September.
Instead of the dust lanes and star-filled patches of the visible-light Milky Way, Fermi's whole-sky map features a thin, bright stripe of gamma rays emanating from the galactic plane, most of it coming from interstellar gas, pulsars, and stellar-mass black holes.
Objective: VIALACTEA will bring to a common forum the major new-generation surveys of the Galactic Plane from 1um to the radio, both in thermal continuum and in atomic and molecular lines, from Europe-funded space missions and ground-based facilities, to engage one of the fundamental challenges in Galactic astronomy: to quantify Galaxy-wide the relationship between the physical agents responsible for the onset and the regulation of star formation in a spiral galaxy and the resulting Rate and Efficiency of star formation, and obtain a "star formation recipe" that will be a cornerstone to trace the star formation history of galaxies back to their formation.
However, they lie somewhat above the Galactic Plane, leading to the conclusion that the arm must be a warped one.
Although all of the individual stars that can be seen in the entire sky with the naked eye are part of the Milky Way Galaxy,[24] the light in this band originates from the accumulation of un-resolved stars and other material when viewed in the direction of the Galactic plane.
The ATLASGAL survey covers more than 420 square degrees of the galactic plane, which corresponds to 97 per cent of the inner galaxy within the solar circle.
For example, in a 2010 paper, the team of Craig Copi, Dragan Huterer, Dominik Schwarz, and Glenn Starkman, which has done extensive research into the CMB anomalies, not only confirmed the Axis' alignment with Earth, but ruled out any alignment with our Milky Way galaxy, stating: "Our studies indicate that the observed alignments are with the ecliptic plane, with the equinox or with the CMB dipole, and not with the Galactic plane.
He presented a recording of 17 hours worth of data, clearly showing the background emission from the galactic plane with the interferometer fringes of Taurus A (M1, the 'Crab Nebula') and then, six hours later, the fringes from Virgo A, M87.
This rare conjunction of the winter solstice Sun and the galactic plane has prompted all manner of speculation: the end of the world, time will stand still for a moment, magnetic storms or a shift in the magnetic field of the Earth to name but a few.
About 80 papers cover instrumentation; interstellar matter and molecular clouds; the galactic plane and star formation; stellar magnetic fields; stars and circumstellar matter; solar systems and exoplanets; and supernovae, extragalactic, and cosmic microwave background polarimetry.
If you could look at the Milky Way edge-on, like a phonograph record from the side, you'd see that the bulge extends both above and below the galactic plane like an orange at the record's center--an orange about 8,000 light-years across.