Monte Carlo localization - Revision history

130.113.126.253 at 03:07, 24 November 2014

2014-11-24T03:07:35Z

← Older revision		Revision as of 05:07, 24 November 2014
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	~~In [[astrophysics]]~~ and [~~[physical cosmology]] the '''mass to light ratio''', normally designated with the symbol <math>\Upsilon<~~/~~math><ref>Mihalas and McRae (1968), ''Galactic Astronomy'' (W~~. H. ~~Freeman)<~~/~~ref>~~ is ~~the quotient between the total [[mass]] of a [[spatial volume]] (typically on the scales of a [[galaxy]] or a [[galaxy cluster\|cluster]])~~ and ~~its [[luminosity]]~~. ~~These ratios are often reported using the value calculated for the~~ [~~[Sun]] as a baseline ratio which is a constant <math>\Upsilon_\odot<~~/~~math> = 5133 [[kilogram\|kg]]~~/~~[[Watt\|W]] equal to a [[solar mass]] divided by a [[solar luminosity]]~~. ~~The mass to light ratios of galaxies and clusters are all much greater than <math>\Upsilon_\odot<~~/~~math> due in part to the fact that most of the [[matter~~]~~] in these objects does not reside within stars and observations suggest that a large fraction is present in the form of [[dark matter]].~~		Hi there, I am Alyson Pomerleau and I believe it sounds fairly great when you [http://www.familysurvivalgroup.com/easy-methods-planting-looking-backyard/ telephone psychic] say it. He is an purchase clerk and it's some thing he truly enjoy. Her family lives in Ohio but her spouse desires them to transfer. The preferred pastime online reader, [http://jplusfn.Gaplus.kr/xe/qna/78647 Check This Out], for him and his kids is style and he'll be starting some thing else alongside with it.<br><br>Feel free to visit my web blog - [http://srncomm.com/blog/2014/08/25/relieve-that-stress-find-a-new-hobby/ cheap psychic readings]

	~~Luminosities are obtained from [[photometry (astronomy)\|photometric]] observations~~, ~~correcting the observed [[brightness]] of the object~~ for ~~the [[cosmic distance ladder\|distance dimming]]~~ and ~~[[interstellar extinction\|extinction]] effects. In general, unless a complete [[electromagnetic spectrum\|spectrum]] of the [[Electromagnetic radiation\|radiation]] emitted by the object~~ is ~~obtained, a model must~~ be ~~extrapolated through either [[power law]] or [[blackbody]] fits~~. ~~The luminosity thus obtained is known as the [[bolometric luminosity]].~~

	~~Masses are often calculated from the dynamics of the [[virial theorem\|virialized system]] or from [[gravitational lens]]ing.~~

	~~Typical mass to light ratios for galaxies range from 2 to 10~~ <~~math~~>~~\Upsilon_\odot~~<~~/math~~> ~~while on the largest scales, the mass~~ to ~~light ratio of the [~~[~~observable universe]] is approximately 100 <math>\Upsilon_\odot</math>, in concordance with the [[Lambda-CDM model\|current best fit cosmological model]].~~

	~~==References==~~
	~~<references />~~

	~~==External links==~~
	* {{cite web\|last=Merrifield\|first=Michael\|title=γ – Mass to Light Ratio\|url=http://~~www.sixtysymbols~~.com/~~videos~~/~~masstolight.htm\|work=Sixty Symbols\|publisher=[[Brady Haran]~~] ~~for the [[University of Nottingham]]\|year=2009}}~~

	~~[[Category:Physical cosmology]]~~
	~~[[Category:Astrophysics]]~~

	~~{{astronomy-stub}}~~

en>Alex mob rob: /* Наводи */

2014-01-07T07:32:03Z

Наводи

← Older revision		Revision as of 09:32, 7 January 2014
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	~~Jayson Berryhill is how I~~'~~m known as~~ and ~~my wife doesn~~'~~t like it at all~~. ~~Invoicing~~ is ~~my profession~~. ~~For many years he's been residing~~ in ~~Alaska~~ and ~~he doesn't plan on changing it~~. ~~To climb~~ is ~~something she would never give up~~.<br><br>~~Here~~ is ~~my site; psychic love readings~~ - [http://www.~~skullrocker~~.com/~~blogs~~/~~post/10991 click~~ the ~~up coming webpage~~] -		In [[astrophysics]] and [[physical cosmology]] the '''mass to light ratio''', normally designated with the symbol <math>\Upsilon</math><ref>Mihalas and McRae (1968), ''Galactic Astronomy'' (W. H. Freeman)</ref> is the quotient between the total [[mass]] of a [[spatial volume]] (typically on the scales of a [[galaxy]] or a [[galaxy cluster\|cluster]]) and its [[luminosity]]. These ratios are often reported using the value calculated for the [[Sun]] as a baseline ratio which is a constant <math>\Upsilon_\odot</math> = 5133 [[kilogram\|kg]]/[[Watt\|W]] equal to a [[solar mass]] divided by a [[solar luminosity]]. The mass to light ratios of galaxies and clusters are all much greater than <math>\Upsilon_\odot</math> due in part to the fact that most of the [[matter]] in these objects does not reside within stars and observations suggest that a large fraction is present in the form of [[dark matter]].

			Luminosities are obtained from [[photometry (astronomy)\|photometric]] observations, correcting the observed [[brightness]] of the object for the [[cosmic distance ladder\|distance dimming]] and [[interstellar extinction\|extinction]] effects. In general, unless a complete [[electromagnetic spectrum\|spectrum]] of the [[Electromagnetic radiation\|radiation]] emitted by the object is obtained, a model must be extrapolated through either [[power law]] or [[blackbody]] fits. The luminosity thus obtained is known as the [[bolometric luminosity]].

			Masses are often calculated from the dynamics of the [[virial theorem\|virialized system]] or from [[gravitational lens]]ing.

			Typical mass to light ratios for galaxies range from 2 to 10 <math>\Upsilon_\odot</math> while on the largest scales, the mass to light ratio of the [[observable universe]] is approximately 100 <math>\Upsilon_\odot</math>, in concordance with the [[Lambda-CDM model\|current best fit cosmological model]].

			==References==
			<references />

			==External links==
			* {{cite web\|last=Merrifield\|first=Michael\|title=γ – Mass to Light Ratio\|url=http://www.sixtysymbols.com/videos/masstolight.htm\|work=Sixty Symbols\|publisher=[[Brady Haran]] for the [[University of Nottingham]]\|year=2009}}

			[[Category:Physical cosmology]]
			[[Category:Astrophysics]]

			{{astronomy-stub}}

202.78.175.199: /* Theory */ Spelling correction - looses to loses

2012-08-09T14:50:24Z

Theory: Spelling correction - looses to loses

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