'Old stars' diaporamas de présentation

CRT Review 3 rd Quarter

CRT Review 3 rd Quarter. An astronomical unit is the average distance _____. Between Mercury and the sun Between Mercury and Pluto Light travel in 1 minute Between Earth and the sun. An astronomical unit is the average distance _____. Between Mercury and the sun

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Chapter 14 Our Galaxy

Chapter 14 Our Galaxy. 14.1 The Milky Way Revealed. Our goals for learning: What does our galaxy look like? How do stars orbit in our galaxy?. What does our galaxy look like?. The Milky Way galaxy appears in our sky as a faint band of light.

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Integrated Science

Stars & Life Cycle of Stars. Integrated Science. Birth of Stars. 1 st a huge cloud of nebula 2 nd as the density of the gas grows so does gravitational pull (more particles are collected) 3 rd the forming star is called a Protostar.

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Stars and Galaxies Galaxies

Stars and Galaxies Galaxies. s Stars The Sun Evolution of Stars Galaxies and expanding Universe. Stars. Constellations are grouping together of stars by first Greeks/ Romans They imagined constellations represented mythological characters, animals or objects

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Andy Bunker (AAO), Laurence Eyles, Kuenley Chiu (Univ. of Exeter, UK),

Star Formation and the Stellar Mass Density at z~6: Implications for Reionization. Andy Bunker (AAO), Laurence Eyles, Kuenley Chiu (Univ. of Exeter, UK), Elizabeth Stanway (Bristol), Daniel Stark, Richard Ellis (Caltech) Mark Lacy (Spitzer), Richard McMahon.

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Astro-2: History of the Universe

Astro-2: History of the Universe. Lecture 3; April 11 2013. Previously.. On Astro-2. The universe is much larger than the Milky Way (Gpc vs kpc) There are billion of galaxies, the Milky Way is average Joe galaxy Most galaxies can be classified based on their appearance as Elliptical

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Galaxies and the Universe

Galaxies and the Universe. Spectra of Science Amole 2013. The Hierarchy. The Universe. The sum of all space, matter, and energy that exists, has existed, or will exist There is only one You are part of it too! We see it as it was in the past Contains many other galaxies

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RR Lyrae Stars

RR Lyrae Stars. By: Mike Lundquist. What Are They. Old Stars, Over 10 Billion Years Old Helium Burning, Horizontal Branch Stars Variable Stars With Periods of 0.2 to 1.1 days ~0.7 Solar Masses ~4-6 Solar Radii Metal Poor Stars. RR Lyrae Stars In M3. Evolution Ascend RGB

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Signaling games

Signaling games. consider two firms Oldstar ( old , set in the market) Nova (new) if fight happens ,oldstar can beat weak nova but not the strong, the winner has the market to itself. for oldstar 3 ,for nova 4 and cost of fighting is -2. payoff matrix. equilibrium without signaling.

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The Milky Way (Spiral Galaxies)

The Milky Way (Spiral Galaxies). Spiral Galaxies. Thin Disk (~30 kpc in diameter and ~1 kpc thick) of stars, gas, and dust: open c lusters, young stars. Sun is located 8 kpc away from the Galactic Center Thick Halo of stars with little gas or dust: globular clusters, old stars

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Other Components of the Universe

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Galaxies

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