Document
... What are neutron stars and pulsars? What are black holes? What happens near a black hole? How do we see black holes? What happens when neutron stars and black holes are in binaries? ...
... What are neutron stars and pulsars? What are black holes? What happens near a black hole? How do we see black holes? What happens when neutron stars and black holes are in binaries? ...
Stars
... supernova is carried off by neutrinos, for SN1987A this was 1046 Watts. • Roughly 1013 neutrinos from this supernova passed through your body on Feb 24, 1987. • Neutrinos interact so weakly with matter that only about one dozen neutrinos were measured at the world’s largest neutrino detectors. Davis ...
... supernova is carried off by neutrinos, for SN1987A this was 1046 Watts. • Roughly 1013 neutrinos from this supernova passed through your body on Feb 24, 1987. • Neutrinos interact so weakly with matter that only about one dozen neutrinos were measured at the world’s largest neutrino detectors. Davis ...
Life Cycle of a Star
... If the collapsed core is 3X or more massive than the sun: An incredibly dense object whose gravity is so strong that not even visible light can escape from it forms. Black holes seem to warp space and time around them. ...
... If the collapsed core is 3X or more massive than the sun: An incredibly dense object whose gravity is so strong that not even visible light can escape from it forms. Black holes seem to warp space and time around them. ...
Star Jeopardy Review #2
... At 8 solar masses a star will go through a violent ending, forming a Type II supernova and ending in a nuetron star or balck hole ...
... At 8 solar masses a star will go through a violent ending, forming a Type II supernova and ending in a nuetron star or balck hole ...
Hierarchical galaxy formation
... The collapsed stellar core is too small to be directly detected but we can infer its presence from its effect on the visible companion star. Gas is stripped from the companion star and heated as it spirals in towards the neutron star or black hole. This gas emits huge amounts of X-rays. ...
... The collapsed stellar core is too small to be directly detected but we can infer its presence from its effect on the visible companion star. Gas is stripped from the companion star and heated as it spirals in towards the neutron star or black hole. This gas emits huge amounts of X-rays. ...
Relativistic jets in microquasars, AGN and GRBs
... V ~ 27 km/s ~ 2 M were blown away Linear momentum = 430 M km/s, as in runaway neutron stars THE RELATIVISTIC STAR IN LSI +61 303 WAS BORN ...
... V ~ 27 km/s ~ 2 M were blown away Linear momentum = 430 M km/s, as in runaway neutron stars THE RELATIVISTIC STAR IN LSI +61 303 WAS BORN ...
Electromagnetic spectrum - Purdue Physics
... The retina is a mosaic of two basic types of photoreceptors, rods, and cones. Cones are highly concentrated in a region near the center of the retina called the fovea. The maximum concentration of cones is roughly 180,000 per mm2 there and the density decreases rapidly outside of the fovea to less t ...
... The retina is a mosaic of two basic types of photoreceptors, rods, and cones. Cones are highly concentrated in a region near the center of the retina called the fovea. The maximum concentration of cones is roughly 180,000 per mm2 there and the density decreases rapidly outside of the fovea to less t ...
Slajd 1 - INFN-LNF
... The primary property of Be stars distinguishing them from other B stars is rapid rotation. All other properties (in particular, the presence of an excretion disc, which permits the efficient accretion on the compact companion) are the consequences of the fast rotation. It is not clear how Be stars a ...
... The primary property of Be stars distinguishing them from other B stars is rapid rotation. All other properties (in particular, the presence of an excretion disc, which permits the efficient accretion on the compact companion) are the consequences of the fast rotation. It is not clear how Be stars a ...
122final10
... the Earth would be pulled into the black hole the tides on the Earth would increase in height the Earth's orbit would be essentially unaffected the earth would be violently ejected from its orbit the earth would be orbiting inside the event horizon of this black hole ...
... the Earth would be pulled into the black hole the tides on the Earth would increase in height the Earth's orbit would be essentially unaffected the earth would be violently ejected from its orbit the earth would be orbiting inside the event horizon of this black hole ...
Do flares in Saggitarius A* reflect the last stage of tidal capture
... heated to X-ray tempertures is tg = 4400 s (m/MMoon)2/3r-1/3 = 240 s for m=1021g and r=1g/cm3 Energy release: up to ΔE~0.1mc2 = 1042erg ...
... heated to X-ray tempertures is tg = 4400 s (m/MMoon)2/3r-1/3 = 240 s for m=1021g and r=1g/cm3 Energy release: up to ΔE~0.1mc2 = 1042erg ...
The Milky Way
... Some neutron stars have magnetic fields ~ 1000 times stronger even than normal neutron stars. These care called Magnetars. ...
... Some neutron stars have magnetic fields ~ 1000 times stronger even than normal neutron stars. These care called Magnetars. ...
Test#4
... a) the mean distance from the Earth to the Sun b) the distance to the closest star c) 3.26 light years d) the size of the Earth’s orbit 3. The direction in the sky that our solar system is moving toward is called the a) Apex b) Solar Peak c) Solar asymptote d) stellar destination 4. Which is brighte ...
... a) the mean distance from the Earth to the Sun b) the distance to the closest star c) 3.26 light years d) the size of the Earth’s orbit 3. The direction in the sky that our solar system is moving toward is called the a) Apex b) Solar Peak c) Solar asymptote d) stellar destination 4. Which is brighte ...
Hubblecast72: ESO 137
... ESO 137-001, visible as the dark brown tangled region around the galaxy’s centre. This image also shows other telltale signs of this process, such as the curved appearance of the galaxy’s disc — a result of the forces exerted by the heated gas. ...
... ESO 137-001, visible as the dark brown tangled region around the galaxy’s centre. This image also shows other telltale signs of this process, such as the curved appearance of the galaxy’s disc — a result of the forces exerted by the heated gas. ...
Supermassive black hole activity in local field early
... The AMUSE surveys: Down-sizing in black hole accretion Elena Gallo | University of Michigan B. Miller & K. Gultekin (U. of Michigan), T. Treu & R. Antonucci (UCSB), J.-H. Woo (Seoul U.) ...
... The AMUSE surveys: Down-sizing in black hole accretion Elena Gallo | University of Michigan B. Miller & K. Gultekin (U. of Michigan), T. Treu & R. Antonucci (UCSB), J.-H. Woo (Seoul U.) ...
Slide 1 - Physics @ IUPUI
... • As we saw with the Helium flash for a star, this is a tricky time. • The burning He heats the surface of the star – which speeds up the production of Helium! • The result is a spectacular explosion (although not as spectacular as a supernova) ...
... • As we saw with the Helium flash for a star, this is a tricky time. • The burning He heats the surface of the star – which speeds up the production of Helium! • The result is a spectacular explosion (although not as spectacular as a supernova) ...
ATNF Steering Committee – Astrophysics highlights
... optical emission; and a wide, mildly relativistic, component responsible for the radio emission and optical afterglow at later times. The ubiquity of jet phenomena was also shown in an unrelated paper by Fender et al. (2004, Nature, 427, 6971) who used ATCA data (Fig.5) to discover an ultra-relativi ...
... optical emission; and a wide, mildly relativistic, component responsible for the radio emission and optical afterglow at later times. The ubiquity of jet phenomena was also shown in an unrelated paper by Fender et al. (2004, Nature, 427, 6971) who used ATCA data (Fig.5) to discover an ultra-relativi ...
Neutron Stars and Black Holes
... Moon, leaving shadows on the ground! •! Probably only about 10 million years old ...
... Moon, leaving shadows on the ground! •! Probably only about 10 million years old ...
Document
... the center (core) of the star. • Gravity pulls the core of the star to a size smaller than the Earth’s diameter. • The core compresses so much that protons and electrons merge into neutrons, taking energy away from the core. • The core collapses, and the layers above fall rapidly toward the center, ...
... the center (core) of the star. • Gravity pulls the core of the star to a size smaller than the Earth’s diameter. • The core compresses so much that protons and electrons merge into neutrons, taking energy away from the core. • The core collapses, and the layers above fall rapidly toward the center, ...
Review: How does a star`s mass determine its life story?
... Two Types of Supernova Massive star supernova: Iron core of massive star reaches white dwarf limit and collapses into a neutron star, causing explosion White dwarf supernova: Carbon fusion suddenly begins as white dwarf in close binary system reaches white dwarf limit, causing total explosion ...
... Two Types of Supernova Massive star supernova: Iron core of massive star reaches white dwarf limit and collapses into a neutron star, causing explosion White dwarf supernova: Carbon fusion suddenly begins as white dwarf in close binary system reaches white dwarf limit, causing total explosion ...
Astronomy 115 Homework Set #1 – Due: Thursday, Feb
... Describe the two main classes of supernova explosions? Which one is used as an important probe of cosmological distances? What about the explosion makes this type of supernova particularly useful as a distance probe? ...
... Describe the two main classes of supernova explosions? Which one is used as an important probe of cosmological distances? What about the explosion makes this type of supernova particularly useful as a distance probe? ...
The Death of Stars - Mounds Park Academy Blogs
... • Stars less than 1.4 times the mass of the sun continue to shrink. • Our Sun will shrink until it becomes the size of the earth. • It becomes very dense (1 tsp. = 5 tons) • Small and faint White Dwarfs are hard to see. • They slowly fizzle out over billions of years. ...
... • Stars less than 1.4 times the mass of the sun continue to shrink. • Our Sun will shrink until it becomes the size of the earth. • It becomes very dense (1 tsp. = 5 tons) • Small and faint White Dwarfs are hard to see. • They slowly fizzle out over billions of years. ...
Rachel Henning
... Sun will start to run out. The helium will get squeezed. This will speed up the hydrogen burning. Our star will slowly puff into a red giant, which is a star that has exhausted it hydrogen and is burning helium fuel. It will eat all of the inner planets, even the Earth. Then the sun would burn into ...
... Sun will start to run out. The helium will get squeezed. This will speed up the hydrogen burning. Our star will slowly puff into a red giant, which is a star that has exhausted it hydrogen and is burning helium fuel. It will eat all of the inner planets, even the Earth. Then the sun would burn into ...
Multiwavelength Imaging of Planetary Nebulae: Resolving Disentangling PN Structure
... Thursday, August 6th, 10:00am Location: Carlson Center 76-1125 Abstract: Planetary nebulae (PNe) represent the late stages of low-mass stellar evolution. The formation of the myriad of PNe morphologies involves processes that are present in many other astrophysical systems such as wind-blown bubbles ...
... Thursday, August 6th, 10:00am Location: Carlson Center 76-1125 Abstract: Planetary nebulae (PNe) represent the late stages of low-mass stellar evolution. The formation of the myriad of PNe morphologies involves processes that are present in many other astrophysical systems such as wind-blown bubbles ...
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.