PPT-Studying the Milky Way using the WFAU Archives

Nicholas Cross Rob Blake Ross Collins Mark Holliman Mike Read Eckhard Sutorius Nigel Hambly Andy Lawrence Bob Mann Keith Noddle Wide Field Astronomy Unit Institute for Astronomy University of Edinburgh UK. When in the eightee nth century the death penalty came to be regarded as too seve re for certain capital offences transportation to North America in t he absence of an adequ ate alternative became popular as a mitigation of such sentences 2 By the t Lec21: The Milky Way The Milky Way GalaxyLecture 21APOD Lec21: The Milky WayAtomic, molecular, and ionized gas Lec. 21: The Milky Way21 -2 Lec21: The Milky Way 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. William Herschel’s map of the Milky Way based on star counts. In the early 1800’s William Herschel, the man who discovered the planet Uranus, tried to understand the shape of the Milky Way by counting stars. He counted how many stars there were in each of dozens of different directions and then plotted the count versus direction. . The Milky Way: Our Home Galaxy. What are the different. components of the Milky Way?. How do we see those components?. What does a map of each component look like from our point of view?. Stars in the Milky Way. April Miller, Program Lead – WBG Archives. ACRL Pre-conference. Washington, DC. March 22, 2017. The World Bank. Established . July . 1944 to rebuild Europe after World War II . Owned . by 187 member countries. Spiral Structure. . The Astronomical Context. By the 1920’s, we knew that the once-mysterious spiral nebulae were flattened galaxies. . Our Milky . Way is . also. flattened. . Two obvious . questions arose:. Our Place Within It. . . The Visible Milky Way. The Milky Way as Seen From Texas. (from Canada, we can. ’. t see the Southern Cross). The Obvious Questions. How big is the Milky Way, and where are we located? At the . Paul McMillan. (Collaborators: James . Binney. , . Tilmann. . Piffl. , Jason Sanders) . Two fundamental problems. We can only observe . positions & velocities. , not . acceleration.. We’re . inside the Milky Way, moving with it. bye:. Angelina Battle. The legend of The Milky Way. This is what old people told me when I was a child. Long ago, when the world was new, there were not many stars in the sky. In those days people depended on corn for their food. They would grind it and keep it in bins behind their homes. Bread made from cornmeal, often kept them from starving during the long winter months. . Vital Statistics. It’s our home!. Contains more than 200 billion stars, and a mass of ~10. 12. suns. It’s almost as old as the Universe itself!. 13.7 billion years old. Structure. The core and spiral arms are of different . Contains more than 100 billion stars. Is one of the two largest among 40 galaxies in the Local Group. Our Solar System is located a little more than half way from the galactic center to the edge of the galactic disk.. Or…. What is the Difference. And Why Does it Matter?. Defining Archives. Society of American Archivists gives this definition on their website:. (also . archive. ), n. ~ 1. Materials created or received by a person, family, or organization, public or private, in the conduct of their affairs and preserved because of the enduring value contained in the information they contain or as evidence of the functions and responsibilities of their creator, especially those materials maintained using the principles of provenance, original order, and collective control; permanent records. - 2. The division within an organization responsible for maintaining the organization's records of enduring value. - 3. An organization that collects the records of individuals, families, or other organizations; a collecting archives. - 4. The professional discipline of administering such collections and organizations. - 5. The building (or portion thereof) housing archival collections. - 6. A published collection of scholarly papers, especially as a periodical.. Here’s the mystery story we’ll unfold…. Fuzzy blobs in the sky – new solar systems, or “galaxies”?. Observational tests. Herschel’s map of the “universe” . (what we today know as just our Galaxy).