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The Milky Way Galaxy

The Milky Way Galaxy

The Milky Way Galaxy Seeds chapter 12 Objective Investigate our home galaxy and its stellar community Introduction Our galaxy ~75,000 ly diameter ~100 billion stars One of the largest star systems in the cosmos via lactea “milky way” How did it form and what is its structure?

By lotus
(313 views)

Galaxies and the Universe

Galaxies and the Universe

Galaxies and the Universe. What Are Galaxies?. Greek galax = milk William Herschel, 1783: A disk with the Sun slightly off-center. What Are Galaxies?. 19th Century: “Spiral Nebulae” Nearby? Maybe Solar Systems in Formation? 1920: Galaxies are Stars 1920’s: Galaxies are like the Milky Way

By makenna
(144 views)

The Milky Way Galaxy

The Milky Way Galaxy

The Milky Way Galaxy. Structure & Evolution. Milky Way’s Structure. Nuclear Bulge in center 12,000 LY wide x 10,000 LY thick Made of old (mostly yellow & red) stars Contains much of the visible mass in the galaxy.

By virgo
(145 views)

Cosmology – The Origin and Evolution of the Universe

Cosmology – The Origin and Evolution of the Universe

Cosmology – The Origin and Evolution of the Universe. Expanding Universe – consistent w/ a Big Bang? Olber’s Paradox Large Scale Structure and relation to Dark Matter Evidence for the Big Bang The Cosmic Microwave Background The abundances of the elements

By booker
(146 views)

Hydrodynamics of large scale structure formation: a “new” feature of (dark) matter

Hydrodynamics of large scale structure formation: a “new” feature of (dark) matter

Hydrodynamics of large scale structure formation: a “new” feature of (dark) matter. Dr. Theo M. Nieuwenhuizen Institute for Theoretical Physics University of Amsterdam. Condensed Matter group meeting 10 Feb 2010. Outline. Basics of hydrodynamics. Turbulence.

By maja
(125 views)

Lecture 29 – An advertisement: two astronomy courses next semester

Lecture 29 – An advertisement: two astronomy courses next semester

Lecture 29 – An advertisement: two astronomy courses next semester. 29:52 ,“Characteristics and Origins of the Solar System, 1:30 – 2:20 MWF 143:070:001, Honors Seminar in Natural Sciences, “Life in the Universe: Scientific Bases for Speculation”, 2:30-3:45 TTh.

By prosper-dillard
(98 views)

Introduction to Astrophysics

Introduction to Astrophysics

Introduction to Astrophysics. Lecture 12: Nebulae. The hourglass nebula. Nebulae. Long ago is was recognised that not all objects in the sky are pointlike, as stars are. The fuzzy diffuse images became known as nebulae .

By teagan-stephens
(95 views)

Evidence for a finite Universe

Evidence for a finite Universe

Evidence for a finite Universe. Stellar populations. Hertzsprung-Russell diagram. Clusters of stars. Stars can form in clusters. Perhaps most of them do, then get dispersed. Most stars in a cluster are approximately the same age. HR diagrams of clusters.

By inga-dixon
(75 views)


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