PPT-X-ray Diagnostics and Their Relationship to Magnetic Fields

David Cohen Swarthmore College XMMNewton Chandra Launched 2000 superior sensitivity spatial resolution and spectral resolution sub arcsecond resolution XMMNewton Chandra Both have CCD detectors for imaging spectroscopy. In addition magnetic fields create a force only on moving charges The direction the magnetic field produced by a moving charge is perpendicular to the direction of motion The direction of the force due to a magnetic field is perpendicular to the dir David Cohen. Swarthmore College. If we understand the physical connection between magnetic fields in massive stars and X-rays, we could use X-ray observations to identify magnetic massive stars.. e.g. Which of the stars in this Chandra X-ray image of the Orion Nebula Cluster are massive magnetic stars? . 8.5 – Applications of Electric and Magnetic Fields. Agenda. Quiz. Lesson on Section on 8.5. Lots of Video’s. Story Time. Cyclotron Particle Accelerator. http://. www.youtube.com/watch?v=cNnNM2ZqIsc. Dayal Wickramasinghe and Lilia . Ferrario. Australian National University. Canberra. . . The chemically peculiar . Ap. , Bp stars ( ~ 1.8 -5 . M. sun. ) are magnetic, and . have ordered large. scale fields, . Andrii Neronov. University of Geneva. Durrer. & AN, . A&ARev. , 21, 62 (2013) . Overview . Magnetic fields in astronomy and cosmology. Characterization. of cosmological magnetic fields. Generation. David Cohen. Swarthmore College. X-rays in massive stars are associated with their radiation-driven . winds. Power in these winds: . erg s. -1. . while the x-ray luminosity. To account for the x-rays, only . David Cohen. Swarthmore College. If we understand the physical connection between magnetic fields in massive stars and X-rays, we could use X-ray observations to identify magnetic massive stars.. e.g. Which of the stars in this Chandra X-ray image of the Orion Nebula Cluster are massive magnetic stars? . to . their CME . progenitors (Wed AM). Two major efforts are under way to address the structure of CMEs that hit the Earth, and . B. z. in particular, with the long-term goal of better forecasting geomagnetic storms:. at HIMAC synchrotron. Hiroshi Uchiyama . #,A). , Masahiro Kawashima . A). , . Shunsuke. Saito . A). , Izumi Kobayashi . A). , . Tadahiro. . Shiraishi. . A). ,. Chihiro. Kobayashi . A). , Eiichi . all magnets have magnetic poles – . . points at the ends of a magnet that have opposing magnetic qualities. all magnets have a north pole and south pole that are magnetically opposite. like poles repel and unlike poles attract. David Cohen. Swarthmore College. If we understand . the physical connection between magnetic fields in massive stars and X-rays, we could use X-ray observations to identify magnetic massive stars.. e.g. Which of the stars in this Chandra X-ray image of the Orion Nebula Cluster are massive magnetic stars? . 24.1 Magnets: Permanent & Temporary. Electric generators. Television sets. Cathode-ray displays. Computer hard drives. Compass. General Properties of Magnets. Polarized-magnets are polarized. They have two distinct and opposite ends.. 21. History of Magnetism . In 1269, Pierre de Maricourt of France found that the directions of a needle near a spherical natural magnet formed lines that encircled the sphere and passed through two points diametrically opposite each other, which he called the poles of the magnet. Subsequent experiments showed that every magnet, regardless of its shape, has two poles, called North (N) and (S) poles, that exert forces on other magnetic poles similar to the way electric charges exert forces on one another. That is, like poles (N-N or S-S) repel each other, and opposite poles (N-S) attract each other. Systems. Frank Barnes.  . Department of Electrical, Computer, and Energy Engineering, University of Colorado, Boulder, Colorado. Acknowledgement. Ben Greenebaum. . Lucas Portelli . Carlos Martino .