PPT-Stellar Evolution

Where do gold earrings come from Goals Explain why stars evolve off the main sequence What happens when they leave the main sequence How does mass affect what happens How do stars die The Main Sequence. Galaxies. T.Naab. , P. Johansson, R. . Cen. , K. . Nagamine. , R. . Joung. . and J.P.O.. PPPL:, 19 Dec . 2012. ApJ.L.,. 658,710 . (2007) ApJ.,697, . 38 . (2009). ApJ.L.,699,L178 (. 2009. ). ApJ.,725,2312 . . atmospheres. a . very. . short. . introduction. Part I. Ewa Niemczura. Astronomical. . Institute. , . UWr. eniem@astro.uni.wroc.pl. Stellar. spectra. Stellar. spectra. One picture is worth 1000 words, but . . Natalia Storch, Kassandra Anderson & Dong Lai. Cornell University. Many hot Jupiter systems . have . been found to exhibit misalignment between the . orbital axis (. L. , the axis perpendicular to the orbital plane) . e. arly type galaxies. and their dark matter haloes. Gian. Luigi . Granato. . INAF – Trieste. Cinthia. . Ragone. -Figueroa. Mario . Abadi. IATE-Cordoba. Plan:. Generalities on the problem. Why puffing-up cannot explain what we see so far. Metallicity. Relation at High . Redshifts. Stellar-mass . Metallicity. Relation at . ｚ～. １．. 4. Kouji. OHTA. 　（. Kyoto University. ）. K. Yabe. , F. . Iwamuro. , S. Yuma, M. Akiyama, N. Tamura, FMOS team et al.. metallicity. gradients . in disk galaxies from . integrated stellar populations. Patricia Sánchez-. Blázquez. . And the CALIFA collaboration. Evolution of the . metallicity. gradients in cosmological simulations. Key variable is . mass. of star. directly measured only for binary stars, but it determines position on main sequence. Cluster ages. Main-sequence luminosity increases . much. faster than mass. therefore massive stars use up their fuel much faster. in collapsing phase. ～. towards comprehensive neutrino studies . Waseda. . univ.. . Yamada lab.. D1 Chinami Kato. Collaboration with . S. Yamada(. Waseda. ), H. . Nagakura. . (Caltech), W. . Iwakami. Revision . lecture. Lecture slides available in . powerpoint. and . pdf. from. www.star.le.ac.uk. /~. mbu. /. lectures.html. Everything taught in the course is examinable…... However, here is a crib sheet of what to focus on. Evolution off the Main Sequence. Main Sequence Lifetimes. Most massive (O and B stars): millions of years. Stars like the Sun (G stars): billions of years. Low mass stars (K and M stars): a trillion years! . JEFFREY HALL. LOWELL OBSERVATORY, FLAGSTAFF, AZ. Project Timeline. 1988 1992 1996 2000 2004 2008 2012 . Construction/early observing. Rebuild 1. Broad survey. Solar analog survey. Rebuild 2. A/D boundary. Ben Keller (McMaster University). James . Wadsley. , Hugh . Couchman. CASCA 2015. Paper. : . astro-ph. : 1505.06268. Keller, . Wadsley. & . Couchman. 2015. Background Image: Gas column density of IGM around a simulated . Chap 17-18: Stellar Evolution – the Life and Death of a Star… Here’s the story we’ll tell… Lowest mass stars and their evolution Low mass star evolution High mass star evolution Stellar death, and stellar corpses CIERA postdoctoral fellow. the stellar progenitors of long-duration gamma ray bursts. MICRA 2023. ECT*, Trento, IT. september 10, 2023. iron core. (stripped) stellar envelope. gravitational collapse.