PPT-Studies of Star Formation in the Nearby Universe

Jeff Mangum NRAO 2 Extragalactic Star Formation 3 Multitransition analysis of molecular excitation within high spatial density nH2 gt 105 cm3 and high kinetic temperature Tk gt 100 K environments. Extra-solar planetary systems. Lecture . 16. Other theory. Tidal Hypothesis. Early attempt to explain the dichotomy of planets.. Problem?. tidal force strong enough to “draw out” a filament from stars will effectively disperse it before it could condense into planets!. What force makes stars? . Gravity!. Out of what? Interstellar gas and dust. But this stuff is VERY low density… a dense area may have ~100 atoms / cm. 3. . Compare that the air you’re breathing… ~10. Smolcic. . ea. ). Compilation based on different star formation estimators (UV, IR, radio, Hα..). Large scatter: Dust obscuration is major problem. Hopkins & . Beacom. (2006) compilation. redshift. Essential Question: 6. Essential Question 6:. Where does Earth and Man fit into the . Universe. ?. https://search.yahoo.com/yhs/search?p=whre+does+earth+fit+into+the+universe&ei=UTF-8&hspart=mozilla&hsimp=yhs-002. In this session we will continue our examination of the Big Bang theory . and looking at problems associated . with the model. Keep in mind, we can only cover a portion of the material out there! There is always more that you can study on this topic. The universe is a big place, perhaps the biggest. . –Kurt Vonnegut. Cosmology. Cosmology is the study of the nature of the universe, how the universe began and how it will end, if it does. There is religious cosmology, and scientific cosmology. The universe is a big place, perhaps the biggest. . –Kurt Vonnegut. Cosmology. Cosmology is the study of the nature of the universe, how the universe began and how it will end, if it does. There is religious cosmology, and scientific cosmology. Our Universe. Lesson 3: Life Cycle of a Star. Lesson Objectives. Let’s Talk Vocabulary. Doppler Effect. Electromagnetic Waves. Red Shift. Blue Shift. Parallax. Let’s Talk Vocabulary. Doppler Effect – the change in a sound’s pitch based on the observer’s position. Chapter 2. Stars. Section 1 Vocabulary. Spectrum. Apparent Magnitude. Absolute Magnitude. Light-Year. Parallax. Color of Stars. Red and Yellow. Cool. Blue . Warm. Blue flame hotter than yellow flame. The universe is a big place, perhaps the biggest. . –Kurt Vonnegut. Cosmology. Cosmology is the study of the nature of the universe, how the universe began and how it will end, if it does. There is religious cosmology, and scientific cosmology. If the universe was 1 year old . . .. Science/religion – either/or?. How do we predict the conditions of the early universe?. What are the different eras in the early universe?. What key lines of evidence support the Big Bang model?. The Snowflake Universe Overview of Snowflake Universe Model for Bahamas Conference May 13, May 17, 2018 Printed May 11, 2018 (Reprinted/edited for PowerPoint Distribution May 29)  By John M. Kulick (B.S.E.) The Last Epoch Cosmic Structure Formation Today we have a matter-dominated universe ruled by the force of gravity. Slight variations in density produces formation regions for stars and galaxies. 1 st The end of the class. Assignments this week. Class evaluations for a 100% lab grade, due by weekend!. Canvas post-class assessment: one homework grade, due before final on Wednesday. Canvas . homeworks.