PPT-Exoplanets

Saturday Physics for Everyone Jon Thaler October 27 2012 Credit NASA Kepler MissionDana Berry Outline What is an exoplanet Why are they interesting How can we find them Exolife . http://. www.jpl.nasa.gov/news/news.cfm?release. =2011-373. Kepler mission. Are we alone?. http://www.jpl.nasa.gov/videos/phoenix/phx20070724/phx-20070723-1280.m4v. How did life start on Earth?. Where can we find potentially life supporting conditions in our solar system?. Big Science: Big Telescopes. Jodrell Bank Discovery Centre. Contents. Part 1: Big Telescopes. Why do we need so many telescopes?. Why build big telescopes?. Part 2: Big Science. Hunting for . exoplanets. meeting #2. Good use for diffraction: . exoplanets. Good use for diffraction: . exoplanets. Chromatic aberration. Spherical aberration. Parabolic. Spherical. Coma. Astigmatism. (e.g., Hale telescope). Virtual Planetary Laboratory - University of Washington. Adding nitrogen to the planetary greenhouse. A: Pressure Broadening due to N. 2. gas. B: Visible absorption of planetary radiation by NO. 2. Unfortunately, I must depart Wednesday evening, so if you are . For . New Planets. Matthew Livas. mlivas@terpmail.umd.edu. Science, Discovery, and the Universe. Computer Science. Introduction. My capstone was to observe exoplanet transits. A transit is when a planet orbiting another star passes in front of its star from our view on Earth, blocking a small portion of the star’s light. This change in the target star’s brightness is detected by measuring the brightness of the star over time and subsequently graphing it to obtain a light curve.. from Direct-Imaging . Exoplanet. Missions. Renyu Hu. Hubble Fellow. Jet Propulsion Laboratory. California Institute of Technology. With thanks to Wesley . Traub. (JPL). HD 189733 b. Evans et al. 2013; Image Credit: NASA, ESA, and G. Bacon (. By Ben . Waxer. Habitable Zone. Aka Goldilocks' Zone. The range of a planet’s orbit around its star that allows the existence of liquid water. Liquid water is a requirement of life. Too close to the sun = too hot. Twenty years ago, the search for planets--and life--outside the solar system was a job restricted to science fiction writers. It is now one of the most rapidly growing fields in astronomy, with thousands of these exoplanets discovered so far. The detection of these worlds has only been possible in the last decade, with the number of discoveries increasing enormously over the last year following the findings of the Kepler Space Telescope. These new worlds are more alien than anything in fiction. Planets larger than Jupiter with years lasting one week, planets circling the dead remains of stars, others with two suns lighting their skies or with no sun at all. These locations hint at Earth-sized worlds but with split hemispheres of perpetual day and night, waterworlds drowning under global oceans, and volcanic lava planets spewing seas of magma. The Planet Factory tells the story of exoplanets, planets orbiting stars outside of our solar system. Discover the specks of dust that circle a young star come together in a violent building project that can form colossal worlds hundreds of times the size of the Earth the changing orbits of young planets that risk dooming the life forming on neighboring worlds or, alternatively, that can deliver the key ingredients needed to seed its beginnings. Exoplanets are one of the greatest construction schemes in the universe and they occur around nearly every star you see. Each result is an alien landscape, but is it possible that one of these could be like our own home? The Planet Factory discusses the way these planets form, their structure and features, and describes in detail the detection techniques used (there are many) before looking at what we can learn about the surface environments and planetary atmospheres, and whether this hints at the tantalizing possibility of life. An informative and entertaining read, The Planet Factory takes the reader to the cutting edge of the ongoing search for worlds like our own, and the hints of life elsewhere in the cosmos. The methods used in the detection and characterization of exoplanets are presented through the study of transiting systems in this unique textbook for advanced undergraduates. From determining the atmospheric properties of transiting exoplanets to measuring the planetary orbit\'s alignment with the stellar spin, students will discover what these measurements imply for reinvigorated theories of planet formation and evolution. Worked examples and exercises with full solutions help students to assess their understanding of concepts and results. Key points and equations are highlighted to make them easily identifiable, and there are full color illustrations throughout. Bridging the gap between introductory, non-mathematical texts and more advanced textbooks, this book is ideal for students with some background in mathematics, physics and astronomy. Accompanying resources to this textbook are available at: http: //www.cambridge.org/features/astrophysics For the first time in human history, we know for certain the existence of planets around other stars. Now the fastest-growing field in space science, the time is right for this fundamental source book on the topic which will lay the foundation for its continued growth.Exoplanets serves as both an introduction for the non-specialist and a foundation for the techniques and equations used in exoplanet observation by those dedicated to the field. \"One of Amazon\'s Best Science Books of 2016

An astronomer traces the natural history of solar eclipses from supernatural to scientific phenomenon, showing us a more wonderful way to look up at the sky

On August 21, 2017, more than ten million Americans will experience an awe-inspiring phenomenon: the first total eclipse of the sun in America in almost forty years. In Sun Moon Earth, astronomer Tyler Nordgren illustrates how this most seemingly unnatural of natural phenomena was transformed from a fearsome omen to a tourist attraction. From the astrologers of ancient China and Babylon to the high priests of the Maya, Sun Moon Earth takes us around the world to show how different cultures interpreted these dramatic events. Greek philosophers discovered eclipses\' cause and used them to measure their world and the cosmos beyond. Victorian-era scientists mounted eclipse expeditions during the age of globe-spanning empires. And modern-day physicists continue to use eclipses to confirm Einstein\'s theory of relativity.Beautifully illustrated and lyrically written, Sun Moon Earth is the ideal guide for all eclipse watchers and star gazers alike.\" Envisioning Exoplanets traces the journey of astronomers and researchers on their quest to explore the universe for a planet like Earth-- Polemical . Titius. -Bode Law. By,. G. G. . Nyambuya. (16 November 2016). Presentation made at the Copper Belt University, Kitwe – Zambia. . During the SAROAD Astronomical Observations and Data Analysis Workshop. Project Motivation – High Z Galactic Structure. Bouwens. , et al, NATURE . vol. 469/Issue No 7331. Z = 10.3, 500 . Myr. after Big Bang . mag. = 28.92, photos 2.4” on side, H= 1.6 . m. m. Project Motivation: High Z Galactic Structure.