PPT-RXTE Observations of Cataclysmic Variables and Symbiotic Stars

Koji Mukai NASAGSFCCRESST 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. Soprano I Hence  stars,  you  daz- zle but the sight,   you teach to Soprano II Hence  stars, \r \r \r Alto Hence  stars, hence   stars too  dim of light,  you  daz-  zle  b By: Courtney, Ben, and Julio. 2 Types of Symbiotic Relationships. Obligate Symbiosis. Can't survive without each other. . Facultative Symbiosis. Live together by choice. Symbiosis. Definition:. interaction between two different organisms living in close to each other, typically advantageous to both. . (Turn and talk.) . Was the animal in that last slide a crocodile or alligator?. It’s a crocodile!. In nature, organisms live together and long-term relationships. . SYMBIOSIS. is a term used to describe close, long-lasting interactions between two different species. . 25 years of Astronomy. Etteyeb Nejmeddine. 21 years old. The Astronomical Society of Tunisia (SAT) . The Charlie Bates Solar Astronomy Project (CBSAP). Computer Science . What Are Variable Stars?. Detecting variability. Holes.  . Jack Steiner (MIT. ). N. eutron Star . I. nterior . C. omposition . E. xplore. R. X-ray Timing Instrument (XTI). 56 identical cameras . (concentrators Si drift detectors). 0.2-12 . keV. bandwidth. ?. Symbiosis is the . close . relationship . between two or more organisms of different species, often but not necessarily benefiting each member. . Ectosymbiosis. and . Endosymibosis. Ectosymbiotic. cyg. . A Project by andy parker. Background. Cataclysmic Variable stars are binary star pairs consisting of a white dwarf and red giant star (usually).. The white dwarf star rips away its stair pair’s matter because its gravitational pull is much greater than that of its partner.. The “. Cosmic Distance Ladder. ”. Visual. “. Parallax. ”. “. Binocular. Vision”…. Let’s us “see” 3D images . (depth). …but, how to do this to get . Astronomical Distances. ?. “. constellations. a. Ancient cultures used . mythology. or everyday items to name constellations. 2. Modern astronomy studies . 88 . constellations. 3. Some constellations are not . visible. all year because Earth revolves around the Sun. ECOLOGICAL RELATIONSHIPS Population – group of individuals of the same species living in the same area, potentially interacting. Community – group of populations of different species living in the same area, Stars 1. Patterns of stars – constellations a. Ancient cultures used mythology or everyday items to name constellations 2. Modern astronomy studies 88 constellations 3. Some constellations are not The study of cataclysmic variables - interacting binary stars containing a white dwarf accreting from an orbiting companion - is undergoing an exciting renaissance, as it embraces observations at all wavelengths. Cataclysmic variables allow, in particular, the direct and detailed study of equilibrium and non-equilibrium accretion discs in turn these developments also help in our understanding of X-ray binaries, black holes and active galactic nuclei. This timely volume provides the first comprehensive survey of cataclysmic variable stars, integrating theory and observation into a single, synthesised text. An introductory chapter gives the historical background of studies of cataclysmic variables. The author then goes on to give an up-to-date review of both the observations (at all wavelengths, and over all time-scales), the theories, the models of the structures and accretion processes believed to be involved. A very detailed bibliography is also provided to guide the reader to pertinent primary literature. Remora. Symbiosis. derives from the Greek words. . for “. living. ” & “. together. ”.. Symbiosis. is the close interactions or relationship between two organisms of . differing species. A . star is a massive ball of plasma that emits . light and electromagnetic energy . throughout the universe. . While . there is only one star in our solar system, there are billions upon billions of stars throughout our galaxy and exponentially more in the billions of galaxies in the universe.