Slide 1Accretion Disks around Stars and the Process of Planet Formation National Radio Astronomy Observatory The National Radio Astronomy Observatory is a facility of the…
1.LETTER doi:10.1038/nature13172 Highly siderophile elements in Earth’s mantle as a clock for the Moon-forming impact Seth A. Jacobson1,2 , Alessandro Morbidelli1 , Sean…
1.NEBULAE, QUASARS, AND BLAZARS Bryan Nozaleda 2. What is a nebula? A nebula, derived from the Latin meaning “mist,” is any cloud or collection of interstellar medium…
Ay 20 - Fall 2004 - Lecture 16 Our Galaxy, The Milky Way Our Galaxy - The Milky Way • Overall structure and major components • The concept of stellar populations •…
Slide 1 The Origin of Oxygen Isotopic Anomalies Seen in Primitive Meteorites Edwin A. Bergin (U. Mich) Jeong-Eun Lee (UCLA) James Lyons (UCLA) Slide 2 Background: Oxygen…
Can Photo-Evaporation Trigger Planetesimal Formation? Henry Throop John Bally SWRI Univ.Colorado / CASA DPS 12-Oct-2004 Orion Nebula Photo-evaporation by extrnal O and B…
Kozai Migration Yanqin Wu Mike Ramsahai The distribution of orbital periods P(T) increases from 120 to 2000 days Incomplete for longer periods Clear excess at 3-4 days Evidence…
Determination of the mass of black holes in active galaxies O. Marco ESO MBH vs host galaxy Active Galactic Nuclei (AGN) are powered by accretion of matter onto massive black…
PowerPoint Presentation Chapter 15 The Formation of Planetary Systems 2 Astronomers routinely observe other young star systems, hoping to gain insight into the origins of…