Astronomy Learning Objectives and Study Questions for Chapter 13
... 5. As a massive star’s degenerate iron core collapses to nuclear density, core bounce creates a shock wave that blows the outer layers of the star apart as a _____. A. magnetar B. nova C. planetary nebula D. Type Ia supernova E. Type II supernova 6. When stars with initial masses between 8 and 25 M ...
... 5. As a massive star’s degenerate iron core collapses to nuclear density, core bounce creates a shock wave that blows the outer layers of the star apart as a _____. A. magnetar B. nova C. planetary nebula D. Type Ia supernova E. Type II supernova 6. When stars with initial masses between 8 and 25 M ...
PowerPoint - Chandra X
... The young Sun-like stars in Orion produce violent X-ray outbursts, or flares, that are much more frequent and energetic than anything seen today from our Sun. The range of flare energies is large, with some of the stars producing flares that are a hundred times larger than others. The different flar ...
... The young Sun-like stars in Orion produce violent X-ray outbursts, or flares, that are much more frequent and energetic than anything seen today from our Sun. The range of flare energies is large, with some of the stars producing flares that are a hundred times larger than others. The different flar ...
Atomic Physics Explaining the Universe
... some cases, line width limits show that the turbulent support for clusters is < 13% of that needed (Sanders et al. 2010). So any heat input is relatively ‘gentle.’ ...
... some cases, line width limits show that the turbulent support for clusters is < 13% of that needed (Sanders et al. 2010). So any heat input is relatively ‘gentle.’ ...
PowerPoint - Chandra X
... Chandra Science Highlight Stephan’s Quintet: A Compact Group of Galaxies about 280 Million Light Years from Earth Chandra X-ray Observatory ACIS Image. ...
... Chandra Science Highlight Stephan’s Quintet: A Compact Group of Galaxies about 280 Million Light Years from Earth Chandra X-ray Observatory ACIS Image. ...
Neutron Star
... • When the mass of the core is greater than 1.4 M, electrons cannot support the gravitational force. • This is the Chandrasekar limit: beyond that it’s supernova. ...
... • When the mass of the core is greater than 1.4 M, electrons cannot support the gravitational force. • This is the Chandrasekar limit: beyond that it’s supernova. ...
NGC 5746 :: NGC 5746 Handout - Chandra X
... collapse to form spinning disks of stars and gas. The Chandra data and computer simulations show that the likely origin of NGC 5746's hot halo is the gradual inflow of intergalactic matter left over from the formation of the galaxy. Hot gas flowing outward has been observed in galaxies with vigorous ...
... collapse to form spinning disks of stars and gas. The Chandra data and computer simulations show that the likely origin of NGC 5746's hot halo is the gradual inflow of intergalactic matter left over from the formation of the galaxy. Hot gas flowing outward has been observed in galaxies with vigorous ...
PPT
... 1. Absolute Photometry: fν/Fν = (R/D)2 ; need Fν(Teff, log g, composition, B, …) Need the distance D! Also need to know what fraction of the stellar surface radiates! The Magnificent Seven: seven soft X-ray sources with a ‘stellar’ spectrum and a distance estimate ...
... 1. Absolute Photometry: fν/Fν = (R/D)2 ; need Fν(Teff, log g, composition, B, …) Need the distance D! Also need to know what fraction of the stellar surface radiates! The Magnificent Seven: seven soft X-ray sources with a ‘stellar’ spectrum and a distance estimate ...
Paul Green - Chandra X-Ray Observatory (CXC)
... Professor Philip Morrison of Cornell thinks the X rays may be generated when starlight picks up energy from high-speed electrons far out in space. Professor Minoru Oda of M.I.T. figures that the X rays come from a magnetic field surrounding the edges of the galactic nucleus. British Cosmologist Fred ...
... Professor Philip Morrison of Cornell thinks the X rays may be generated when starlight picks up energy from high-speed electrons far out in space. Professor Minoru Oda of M.I.T. figures that the X rays come from a magnetic field surrounding the edges of the galactic nucleus. British Cosmologist Fred ...
Bubble Nebulae Around Ultra-luminous X
... Bubble Nebulae Around Ultra-luminous X-ray Sources and the case study of IC 342 X-1 Ultraluminous X-ray (ULX) sources are variable off-nuclear X-ray sources in external galaxies with luminosities greatly exceeding the Eddington luminosity of a stellar-mass compact object, assuming isotropic emission ...
... Bubble Nebulae Around Ultra-luminous X-ray Sources and the case study of IC 342 X-1 Ultraluminous X-ray (ULX) sources are variable off-nuclear X-ray sources in external galaxies with luminosities greatly exceeding the Eddington luminosity of a stellar-mass compact object, assuming isotropic emission ...
PowerPoint - Chandra X
... Robotic Optical Monitoring and Polarimetry Telescopes (PROMPT) and the Two Micron All Sky Survey (2MASS). ...
... Robotic Optical Monitoring and Polarimetry Telescopes (PROMPT) and the Two Micron All Sky Survey (2MASS). ...
NASA`s X-ray Eye on the Universe
... • Big, old star blows up • Can be seen when in binary star systems • BH pulls matter from companion star • Bright, variable/bursting sources ...
... • Big, old star blows up • Can be seen when in binary star systems • BH pulls matter from companion star • Bright, variable/bursting sources ...
PowerPoint - Chandra X
... occurred when the core of a massive star collapsed to form a neutron star or black hole (core-collapse supernova). The estimated age of the remnant is 3,000 years. Most of the oxygen in the universe is thought to be dispersed into space by core-collapse supernovas. The oxygen ejecta from such supern ...
... occurred when the core of a massive star collapsed to form a neutron star or black hole (core-collapse supernova). The estimated age of the remnant is 3,000 years. Most of the oxygen in the universe is thought to be dispersed into space by core-collapse supernovas. The oxygen ejecta from such supern ...
PowerPoint - Chandra X
... ESO 137-001: X-ray Tails from Galaxy Plunging into the Core of the Galaxy Cluster A3627 ...
... ESO 137-001: X-ray Tails from Galaxy Plunging into the Core of the Galaxy Cluster A3627 ...
PowerPoint - Chandra X
... from ESO’s Very Large Telescope are shown in yellowwhite and blue, and infrared data from Spitzer are red. ...
... from ESO’s Very Large Telescope are shown in yellowwhite and blue, and infrared data from Spitzer are red. ...
Astrophysical X-ray source
Astrophysical X-ray sources are astronomical objects with physical properties which result in the emission of X-rays.There are a number of types of astrophysical objects which emit X-rays, from galaxy clusters, through black holes in active galactic nuclei (AGN) to galactic objects such as supernova remnants, stars, and binary stars containing a white dwarf (cataclysmic variable stars and super soft X-ray sources), neutron star or black hole (X-ray binaries). Some solar system bodies emit X-rays, the most notable being the Moon, although most of the X-ray brightness of the Moon arises from reflected solar X-rays. A combination of many unresolved X-ray sources is thought to produce the observed X-ray background. The X-ray continuum can arise from bremsstrahlung, either magnetic or ordinary Coulomb, black-body radiation, synchrotron radiation, inverse Compton scattering of lower-energy photons be relativistic electrons, knock-on collisions of fast protons with atomic electrons, and atomic recombination, with or without additional electron transitions.Furthermore, celestial entities in space are discussed as celestial X-ray sources. The origin of all observed astronomical X-ray sources is in, near to, or associated with a coronal cloud or gas at coronal cloud temperatures for however long or brief a period.