PPT-Ay 124 Structure and Dynamics of Galaxies

R Ellis amp S G Djorgovski Winter 2011 Class Logistics All info lecture notes useful links homeworks exams announcements etc will be on the class website httpwwwastrocaltecheduschenkeray124. Thorsten Naab . MPA, . Garching. . What regulates galaxy formation? . Leiden, April, 22. nd. How do massive galaxies get their gas and stars?. Gas accretion involves dissipation – energy can be radiated away . Patricia . Sánchez-Blázquez. (UAM). Jairo. Mendez-Abreu (IAC). Sebastian F Sánchez (UNAM). Isabel Perez (UGR). Fabian Rosales-Ortega (UAM). And . the CALIFA collaboration. Resolved stellar . population. Anja. von . der. Linden et al., 2007, MNRAS, 379, 867. On the prevalence of radio-loud active galactic nuclei in brightest cluster galaxies: implications for AGN heating of cooling flows. P. N. Best et al., 2007, MNRAS, 379, 894. Except for nearby, we can only see bright galaxies. I will ignore dwarf . spheroidal. (. dSph. ) and dwarf elliptical (. dE. ) classifications. Galaxies . come in four broad categories, based on their appearance. Recap. Canvas homework: due on Wednesday. Lab this week: Galaxy Morphology. Campus Observatory. Milky Way galaxy. Stars: . brightnesses. , masses, sizes, compositions, evolution. Interstellar matter: gas, dust. H.-W. Rix IMPRS Galaxies Course March 11, 2011. Goal:. Determine . n. *. (M. *. ,. t. age. ,[Fe. /H],. R. ). . for a population of galaxies. How many stars of what mass and metallicity . formed when and where in galaxies?. Giuseppina. . Battaglia. Instituto. de . Astrofisica. de Canarias, Tenerife. Credit. : ESO/. H.H.Heyer. Credit. : ESO/L. . Calçada. Karachentsev. et al. 2014. Individual . Red . Giant Branch . stars. The Hubble Tuning-Fork Diagram. This is the traditional scheme for classifying galaxies:. Elliptical Galaxies. Elliptical galaxies. have smooth, round distributions of stars. They resemble globular clusters, except they are much larger. They . Craig Sarazin. University of Virginia. M86. (. Randall et al. 2008). . Abell. 2052. (Blanton et . al. . 2011). Optical light dominated by bulge. Last star formation typically billions of years ago. Assembly Language and . Arduino. Adapted from T. Murphy’s slides. Behind the C code (or sketch). C provides a somewhat human-readable interface. but it gets . compiled. into machine instruction set. Adapted from T. Murphy’s lectures. The Rubric, Once Again. Sense some real-world quantity. input: analog or digital. sensor or user input (switches, keypad). Process the information. code in software. Islands of Stars. Our goals for learning. :. How are the lives of galaxies connected with the history of the universe?. What are the three major types of galaxies?. How are galaxies grouped together?. +?!/%!)(*'4?/'&./&'+-!6%??+?!/%!/'4,)/)%(46!J(%76+,0+!4(,!)(/4(0)86+!.&6/&'46!5+')/40+-!4(,!'+9+'?46!%*!5+46/5!4(,!,+9+6%21+(/!04)(?!14,+-!7)/5!)124./!%(!*&/&'+!0+(+'4/)%(?A!#:$!7'83#9%/"(/54/! 0%9+'( . Craig Roberts. Collaborators: 2014-Present. Jing CHEN (Peking U.). Bo-Lin LI (Nanjing U.). Ya. LU (Nanjing U.). Khépani. RAYA (U . Michoácan. ). ;. Chien. -Yeah SENG (UM-Amherst) ;. Chen . CHEN.