Skip to comments.
The First Public Data Release from BOSS, the Baryon Oscillation Spectroscopic Survey
BOSS ^
| August 08, 2012
| Paul Preuss
Posted on 01/07/2013 11:52:41 AM PST by Berlin_Freeper
The Third Sloan Digital Sky Survey (SDSS-III) has issued Data Release 9 (DR9), the first public release of data from the Baryon Oscillation Spectroscopic Survey (BOSS). In this release BOSS, the largest of SDSS-IIIs four surveys, provides spectra for 535,995 newly observed galaxies, 102,100 quasars, and 116,474 stars, plus new information about objects in previous Sloan surveys (SDSS-I and II).
This is just the first of three data releases from BOSS, says David Schlegel of the U.S. Department of Energys Lawrence Berkeley National Laboratory (Berkeley Lab), an astrophysicist in the Labs Physics Division and BOSSs principal investigator. By the time BOSS is complete, we will have surveyed more of the sky, out to a distance twice as deep, for a volume more than five times greater than SDSS has surveyed before a larger volume of the universe than all previous spectroscopic surveys combined.
(Excerpt) Read more at newscenter.lbl.gov ...
TOPICS: Astronomy
KEYWORDS: stringtheory; xplanets
A Flight through the UniverseThis animated flight through the universe was made by Miguel Aragon of Johns Hopkins University with Mark Subbarao of the Adler Planetarium and Alex Szalay of Johns Hopkins. There are close to 400,000 galaxies in the animation, with images of the actual galaxies in these positions (or in some cases their near cousins in type) derived from the Sloan Digital Sky Survey (SDSS) Data Release 7. Vast as this slice of the universe seems, its most distant reach is to redshift 0.1, corresponding to roughly 1.3 billion light years from Earth. The Baryon Oscillation Spectroscopic Survey (BOSS) spectroscopic data in Data Release 9 includes well over half a million galaxies at redshifts up to 0.8 roughly 7 billion light years distant and over a hundred thousand quasars to redshift 3.0 and beyond.
To: Berlin_Freeper
Fascinating video.
Has there been any research on what’s within the vast distances between galaxies?
I suppose we can’t really know, since we’re barely able to get a probe out of the solar system and even at that, the distances are almost unimaginable.
2
posted on
01/07/2013 11:58:49 AM PST
by
chrisser
(Senseless legislation does nothing to solve senseless violence.)
To: chrisser
dark matter n (Astronomy) Astronomy matter known to make up perhaps 90% of the mass of the universe, but not detectable by its absorption or emission of electromagnetic radiation
Dark Matter Structure Revealed
To: b
4
posted on
01/07/2013 12:10:37 PM PST
by
zeugma
(Those of us who work for a living are outnumbered by those who vote for a living.)
To: Berlin_Freeper
"dark matter n (Astronomy) Astronomy matter known which has been postulated to make up perhaps 90% of the mass of the universe, but not detectable by its absorption or emission of electromagnetic radiation" I know that astrophysicists are currently in love with the concept of dark matter, but for now, it's still just a theory to explain the inexplicable 'missing' matter in their measurements of the universe.
5
posted on
01/07/2013 2:08:54 PM PST
by
Windflier
(To anger a conservative, tell him a lie. To anger a liberal, tell him the truth.)
To: KevinDavis; annie laurie; Knitting A Conundrum; Viking2002; Ernest_at_the_Beach; Mmogamer; ...
6
posted on
01/07/2013 8:11:31 PM PST
by
SunkenCiv
(Romney would have been worse, if you're a dumb ass.)
To: 6SJ7; AdmSmith; AFPhys; Arkinsaw; allmost; aristotleman; autumnraine; Beowulf; Bones75; BroJoeK; ...
7
posted on
01/07/2013 8:11:31 PM PST
by
SunkenCiv
(Romney would have been worse, if you're a dumb ass.)
Disclaimer:
Opinions posted on Free Republic are those of the individual
posters and do not necessarily represent the opinion of Free Republic or its
management. All materials posted herein are protected by copyright law and the
exemption for fair use of copyrighted works.
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson