star stream


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star stream

[′stär ′strēm]
(astronomy)
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In a separate set of findings, astronomers looking at the outskirts of the Milky Way found two new star streams, remnants torn from dwarf galaxies or star clusters.
To learn more about how galaxies form, astronomers need to determine not only how many star streams are present but also how bright they are and how many came from now-dead satellite galaxies, comments theorist Kathryn V.
Because star streams are both faint and stretched out, only a sensitive light detector that views a large area of sky can observe them.
To find such star streams, we need highly accurate locations, brightnesses, and colors for faint stars over vast areas of sky--exactly the sort of data the SDSS is obtaining.
5 interview with two members of the Kansas City Star's editorial board and Torrence, which the Star streamed live on its Facebook page.
"The star streams that have been mapped so far are like creeks compared to the giant river of stars we predict will be observed eventually.
Such star streams stick out from the rest of the stars in the sky as they are dense and coherent, much like contrails from airplanes easily stick out from regular clouds."
This led to a collaborative partnership between Martinez-Delgado and GaBany, who have since published 13 papers in leading journals on the discovery of tidal star streams and rings in the outer halos of large spiral galaxies (S&T: Jan.
Gill's collaboration with Kapteyn on the Cape Photographic Durchmusterung (CPD) and subsequent repeat observations had led to the discovery of two "star streams", or preferential groups of proper motions, shared by certain stars [now known to be a reflection of halo and disc populations or old and young stars].
The new model shows a series of dense star streams, which are similar to the distribution of stars observed in our solar neighbourhood.
The star streams are 260,000 light-years long--more than twice the length of the Milky Way.
Between the top of Orion and Zeta (Q Tauri, the southern horn-tip of Taurus, is a 7[degrees] sprawl of three star streams forming the Beach Umbrella, another reminder of summer.