PPT-Blue Straggler Stars: the first 40 years, 1953-92

What is a Blue Straggler The Failure of Occams Razor Mario Livio 1993 ASP Conf 53 ed R Saffer p3 Why has it taken so long Inconclusive and confusing early observations. the first 40 years, 1953-92 . What is a Blue Straggler?. “The Failure of Occam’s Razor?” . . (Mario . Livio. 1993, ASP Conf. 53, ed. R . Saffer. , p.3). Why has it taken so long?. Inconclusive and confusing early observations. Laura Lush. Bart . Suh. The stars appear one by one. like small songs,. like small terrors. rattling bright in their cages.. The moon so skin.. Pale rice paper. awash in blood.. The wolf—. a brilliant blue flame. By Laura Lush. . . By Sephy Vandekamp. Stars. The . stars appear one by one. like small songs,. like small terrors. rattling bright in their cages.. The moon so skin.. Pale rice paper. awash in blood.. Caroline Darin. Nico Salzetta. Advisors: Aaron Geller, Daryl Haggard. Star Clusters. All stars in a cluster are around the same age. Spherical distribution. Two types: globular and open clusters. Star Clusters cont.. do not live alone. B. ackground Design E. . Buunk. / S.E. de Mink, . HST image: NASA . Paresce. Selma E. de Mink. Hubble Science Briefing . , . February 7, 2013. Hubble Fellow at Space Telescope Science Institute / Johns Hopkins University. Are They Chemically Distinct to Their Fellow RGB and HB Stars?. M5: SDSS . Simon . Campbell. 1. . Universitat. . Politecnica. de . Catalunya. , Barcelona, Spain. 2. CSPA, . Monash. University, Melbourne, Australia. Galaxies . And the Foundation of Modern Cosmology. How are the lives of galaxies connected with the history of the universe?. Hubble Deep Field. Our deepest images of the universe show a great variety of galaxies, some of them billions of light-years away. Extreme Stars. &. Other Starlike Curiosities. A New View of the Universe. The birth of Radio Astronomy. In 1928, Bell Labs wanted to investigate using "short waves" for transatlantic radio telephone service.   Karl Jansky was assigned the job of investigating the sources of static that might interfere with radio voice transmissions.   . How big are stars?. How far . away?. How . luminous?. How hot?. How old, and how much longer to . live?. C. hemical . composition?. How are they moving?. Are they isolated or in clusters?. 1. How Far Away are the Stars?. 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. constellations. a. Ancient cultures used . mythology. or everyday items to name constellations. 2. Modern astronomy studies . 88 . constellations. 3. Some constellations are not . visible. all year because Earth revolves around the Sun. Stars 1. Patterns of stars – constellations a. Ancient cultures used mythology or everyday items to name constellations 2. Modern astronomy studies 88 constellations 3. Some constellations are not A talk for Hans . Zinnecker. (sort of).. Alison Sills, McMaster University. Collision Models . Sills (1997-2009), . Glebbeek. (2008-2010). head-on (S97, G08) and off-axis collisions (S01). With rotation (S05). How far away are the stars?. FAR away!. Nearest star system: Alpha Centauri. Distance: 4.23 light-years. But how do we know that?!?. Recall: . 1 light-year = 9.5 trillion km. BUT: only works out to about 300 light-years.