'Single star' presentation slideshows

Chapter 20 Stellar Evolution

Chapter 20 Stellar Evolution. Units of Chapter 20. 20.1 Leaving the Main Sequence 20.2 Evolution of a Sun-Like Star The CNO Cycle 20.3 The Death of a Low-Mass Star Learning Astronomy from History 20.4 Evolution of Stars More Massive than the Sun Mass Loss from Giant Stars

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UV Radiative Feedback During Reionization

UV Radiative Feedback During Reionization. Andrei Mesinger Princeton University. Current Reionization Constraints at z~6-7. Caution:. WMAP t e ~ 0.087 ?0.017 reionization z~11 ? Dunkely+2009. - integrated measurement.

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Midterm Exam #2 Tuesday, March 23

Midterm Exam #2 Tuesday, March 23. Closed book Will cover Lecture 8 (Special Relativity) through Lecture 14 (Star Formation) only If a topic is in the book, but was not covered in class, it will not be on the exam! Some combination of multiple choice, short answer, short calculation

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?????? 2007?? ???? ???? ??? Grace Lin grace.mf.lin@gmail

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Haiku

Haiku. Very short Japanese poems. History of the Haiku. Originated around the 16 th Century in Japan Most popular form of Japanese poetry Made popular by poets such as Matsu Basho Kobayashi Issa Masaoka Shiki. Haiku Details. Each poem has three lines, each with a specific syllable:

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Most Stars Are Single ! C. J. Lada ApJ, 640, L63 (2006)

Most Stars Are Single ! C. J. Lada ApJ, 640, L63 (2006). From observations : a low binary fraction for late-type stars 2/3 of all disk MS stellar systems are composed of single star Some implications for star & planet formation. What were the observations and assumptions.

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III. Lives of Stars

III. Lives of Stars. A. Studying the Lives of Stars. Not really alive Cannot watch a single star for billions of years so they observe many stars and see how they differ from one another. B. A Star is Born. Nebula- large amount of gas and dust spread out in an immense volume

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Gravitational Potential Energy

Gravitational Potential Energy. When we are close to the surface of the Earth we use the constant value of g. If we are at some altitude above the surface of the Earth we must use the radially dependent form of the gravitational acceleration. Assumes constant g!. 0. 0.

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