PPT-A pair of O stars with hard X-rays in M17

Marc Gagné amp David Cohen Chandra optical 2MASS optical Three models for massive star xray emission 1 Instability driven shocks 2 Magnetically channeled wind shocks 3 Windwind interaction in close binaries. Judy Cohen (Caltech)+ Evan Kirby, the 0Z team and . Branimir. . Sesar. Astronomy in the TMT Era. Tokyo, Oct 2013. 1. Four Problems. Gravitational settling in the Sun & solar modeling. Extremely metal-poor stars: CNO. body. . interactions. and . Boson. . Stars. . . Jacksonville, 15 . April. 2007. Carlos . Palenzuela. (1). , . I.Olabarrieta. (1). ,L. . Lehner. (1). ,S. . Liebling. (2). with. The Sun and the Stars. The Sun and the Stars. Limb darkening. The surface of the sun does not have uniform brightness, it appears bright toward the centre, darker towards the edges, and the colour is redder, an effect known as Limb darkening - why?. . 6. – Observing at Other Wavelengths. ASTR 101. Prof. Dave Hanes. Why Other Wavelengths? . To Study . New Sources. . In Historical Order. 1. Radio radiation 3. X-Rays. 2. Infrared sources 4. Gamma rays. , . G. Yu. Kryuchkyan*, . A. Ipp, J. Evers. . and C. H. Keitel. Max-Planck-Institut für Kernphysik, Heidelberg, Germany. *Yerevan State University, Yerevan , Armenia. "PW Lasers at Hard X-ray Sources" Dresden-Rossendorf, 7 Sep 2011. . Presented by:-. Mohit. . Shashwat. . Ankit. What is X-ray Astronomy?. X ray astronomy is an observational branch of . astronomy. which deals with the study of x ray observation and detection from astronomical objects.. Lately . I been, I been losing sleep. Dreaming about the things that we could be. But baby, I been, I been prayin' hard. Said no more counting dollars. We'll be counting stars. Yeah, we'll be counting stars. angles. Complementary angles: Two angles with the sum of 90°. Supplementary angles: Two angles with the sum of 180°. Adjacent angles: Two angles that share a common vertex and side with no common interior points.. 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? . 4.f. Describe the hierarchical structure (stars, cluster, galaxies, galactic clusters) of the universe & examine the expanding universe to include its age & history & the modern techniques (e.g. radio, infrared, ultraviolet & x-ray astronomy) used to measure objects & distances in the universe. (DOK 2). Liz Hays . (. NASA Goddard Space Flight Center). The Origin of Cosmic Rays. Credit S. . Swordy. Victor Hess and his . “Flight . Ops . Team”, . 1912. From protons. Pion decay. Accelerated protons (p) interact with matter. Koji Mukai. NASA/GSFC/CRESST and UMBC. How RXTE matches up with WDs. Luminosity: up to ~a few x 10. 34. erg s. -1. for symbiotic stars, ~a few x 10. 33. erg s. -1. for typical intermediate . polars. Varun Bhalerao . on behalf of the . NuSTAR team. NuSTAR. The Nuclear Spectroscopic Telescope Array is a NASA small explorer mission, the first focusing hard X-ray space telescope. It will address select science goals in a two year baseline mission, followed by a possible guest investigator program.. X Rays. Are electromagnetic radiations having wavelength of order of 1. Are highly energetic radiations which are emitted when energetic electrons are made to incident on a metallic target.. Were discovered by German Physicist W.C. Roentgen in1895..