![9. Lectures on Star Formation.](http://s1.studyres.com/store/data/008080996_1-68aec7a7f067a073179f790f1e23df7b-300x300.png)
9. Lectures on Star Formation.
... Birth process of a star can be divided into two main distinctive stages: Proto-star-phase: -Proto-stars still in process of attaining star-like structure. -Proto-stars accompanied by strong outflows and jets -Surrounded by accretion disks. Disk adding more mass onto the proto-star. -Proto-star hidd ...
... Birth process of a star can be divided into two main distinctive stages: Proto-star-phase: -Proto-stars still in process of attaining star-like structure. -Proto-stars accompanied by strong outflows and jets -Surrounded by accretion disks. Disk adding more mass onto the proto-star. -Proto-star hidd ...
1. Neutron stars 2. Black holes
... Core temperature rises again, all heavy elements in core undergo Photodisintegration, undoing the fusion process of the previous 10 million years. End up with electrons, protons, neutrons, and photons in core. Core compresses, stops and rebounds with a vengeance! During this rebound, a shock wave sw ...
... Core temperature rises again, all heavy elements in core undergo Photodisintegration, undoing the fusion process of the previous 10 million years. End up with electrons, protons, neutrons, and photons in core. Core compresses, stops and rebounds with a vengeance! During this rebound, a shock wave sw ...
Stars 3
... field -- is powered by the Crab Pulsar. The picture on the right shows a Hubble Space Telescope image of the inner parts of the Crab. The pulsar itself is visible as the left of the pair of stars near the center of the frame. Surrounding the pulsar is a complex of sharp knots and wisp-like features. ...
... field -- is powered by the Crab Pulsar. The picture on the right shows a Hubble Space Telescope image of the inner parts of the Crab. The pulsar itself is visible as the left of the pair of stars near the center of the frame. Surrounding the pulsar is a complex of sharp knots and wisp-like features. ...
AJAstroProject
... M42 – The Orion Nebula • The Orion Nebula is an example of an emission nebula. • It is about 1,270 ly away but many source vary on the exact distance. • It has an apparent magnitude of 3.0. • This is only a 5 second exposure through the V filter. ...
... M42 – The Orion Nebula • The Orion Nebula is an example of an emission nebula. • It is about 1,270 ly away but many source vary on the exact distance. • It has an apparent magnitude of 3.0. • This is only a 5 second exposure through the V filter. ...
w 2012-01-13 Stellar Life Cycle
... Emission nebulae are clouds of high temperature gas. The atoms in the cloud are energized by ultraviolet light from a nearby star and emit radiation as they fall back into lower energy states (in much the same way as a neon light). These nebulae are usually red because the predominant emission line ...
... Emission nebulae are clouds of high temperature gas. The atoms in the cloud are energized by ultraviolet light from a nearby star and emit radiation as they fall back into lower energy states (in much the same way as a neon light). These nebulae are usually red because the predominant emission line ...
Stellar Evolution (Powerpoint) 17
... • Then, star collapses under the weight and because it is electron degenerate, energy created will not expand the star and shut off the fusion. • So, entire star (carbon, mostly) undergoes fusion at once. What a star normally takes billions of years to burn, this star burns all at once. BIG explosio ...
... • Then, star collapses under the weight and because it is electron degenerate, energy created will not expand the star and shut off the fusion. • So, entire star (carbon, mostly) undergoes fusion at once. What a star normally takes billions of years to burn, this star burns all at once. BIG explosio ...
The Helix Nebula • NGC 7293
... dwarf that seems to float in a sea of blue gas [white dot in center of nebula]. These tentacles, which superficially resemble comets, formed when a hot “stellar wind” of particles plowed into colder shells of dust and gas ejected previously by the doomed star. The comet-like tentacles have been obse ...
... dwarf that seems to float in a sea of blue gas [white dot in center of nebula]. These tentacles, which superficially resemble comets, formed when a hot “stellar wind” of particles plowed into colder shells of dust and gas ejected previously by the doomed star. The comet-like tentacles have been obse ...
SSG Coordinators will be at the Cronan Ranch observing site at 6
... around the dragon’s tail, however, does have an interesting galaxy that rewards the star-hopper. The brightest star due east of M81-82 is the very tip of the dragons tail. Known as Glausar, Lamda () Draconis is our first way-point. Now draw an imaginary line from Glausar to the next tail star, Kapp ...
... around the dragon’s tail, however, does have an interesting galaxy that rewards the star-hopper. The brightest star due east of M81-82 is the very tip of the dragons tail. Known as Glausar, Lamda () Draconis is our first way-point. Now draw an imaginary line from Glausar to the next tail star, Kapp ...
Time From the Perspective of a Particle Physicist
... All elements heavier than Helium are made inside stars up to Iron - fusion in Red Giants heavier than Iron (and some lighter) - Supernova explosions • Stars lose matter at end of life-cycle becoming Red Giants (can detect) Supernova debris (can detect) and this matter forms new stars (and planets an ...
... All elements heavier than Helium are made inside stars up to Iron - fusion in Red Giants heavier than Iron (and some lighter) - Supernova explosions • Stars lose matter at end of life-cycle becoming Red Giants (can detect) Supernova debris (can detect) and this matter forms new stars (and planets an ...
Lecture21
... • An object dropped from a height of 1 m would hit the surface at a velocity 0.6% the speed of light. • Must use general relativity to model correctly ...
... • An object dropped from a height of 1 m would hit the surface at a velocity 0.6% the speed of light. • Must use general relativity to model correctly ...
Deep Space Mystery Note Form 3
... Small core of neutrons Spinning neutron star. Neutrons produce radio waves in a steady stream or random bursts. Stars 10 times the sun will leave a black hole. Leave behind a large core. With no energy fuse, it doesn’t have any out ward pressure so it gets engulfed in it’s own gravity an ...
... Small core of neutrons Spinning neutron star. Neutrons produce radio waves in a steady stream or random bursts. Stars 10 times the sun will leave a black hole. Leave behind a large core. With no energy fuse, it doesn’t have any out ward pressure so it gets engulfed in it’s own gravity an ...
Guess The Spectra!!
... emitted from the central star. The Ring Nebula has spectral lines from Hydrogen, Helium, and Oxygen! ...
... emitted from the central star. The Ring Nebula has spectral lines from Hydrogen, Helium, and Oxygen! ...
P1 - Foundation
... telescope he discovered that Jupiter had four moons. As these moons were orbiting Jupiter itself, this showed that not everything orbited the Earth. ...
... telescope he discovered that Jupiter had four moons. As these moons were orbiting Jupiter itself, this showed that not everything orbited the Earth. ...
Stellar Evolution Hertzsprung-Russell Diagram Hertzsprung
... some go through nova/supernova stage most become black dwarfs and disappear ...
... some go through nova/supernova stage most become black dwarfs and disappear ...
Birth and Death of Stars
... • After the supergiant stage, massive stars contract with a gravitational force much greater than low mass stars. The high pressures and temperatures that result causes nuclear fusion to begin again. This time the core fuses into heavier elements such as oxygen, magnesium, or silicon. Fusion continu ...
... • After the supergiant stage, massive stars contract with a gravitational force much greater than low mass stars. The high pressures and temperatures that result causes nuclear fusion to begin again. This time the core fuses into heavier elements such as oxygen, magnesium, or silicon. Fusion continu ...
The Star
... Journal, my five in the Monthly Notices of the Royal Astronomical Society. I would remind them that my order has long been famous for its scientific works. We may be few now, but ever since the eighteenth century we have made contributions to astronomy and geophysics out of all proportion to our num ...
... Journal, my five in the Monthly Notices of the Royal Astronomical Society. I would remind them that my order has long been famous for its scientific works. We may be few now, but ever since the eighteenth century we have made contributions to astronomy and geophysics out of all proportion to our num ...
Star - AUSD Blogs
... and geophysics out of proportion to our numbers. Will my report on the Phoenix Nebula end our thousand years of history? It will end, I fear, much more than that. I do not know who gave the nebula its name, which seems to me a very bad one. If it contains a prophecy, it is one that cannot be verifie ...
... and geophysics out of proportion to our numbers. Will my report on the Phoenix Nebula end our thousand years of history? It will end, I fear, much more than that. I do not know who gave the nebula its name, which seems to me a very bad one. If it contains a prophecy, it is one that cannot be verifie ...
ppt document
... relations. We can always measure brightness. It is also easy to measure the period of a Cepheid Variable. With the period-luminosity relationship, we can then get the luminosity. Finally, knowing the brightness and luminosity, we can calculate the ...
... relations. We can always measure brightness. It is also easy to measure the period of a Cepheid Variable. With the period-luminosity relationship, we can then get the luminosity. Finally, knowing the brightness and luminosity, we can calculate the ...
hubble amazing universe worksheet
... and ____________________, and gasses are assigned colors. Blue is ___________, and green is ___________________. 8. This region is _____________ light years across! 9. Hubble even showed a star about to die! As a star runs out of ______________, it expands, and it is released into space. 10. Someday ...
... and ____________________, and gasses are assigned colors. Blue is ___________, and green is ___________________. 8. This region is _____________ light years across! 9. Hubble even showed a star about to die! As a star runs out of ______________, it expands, and it is released into space. 10. Someday ...
Recap: High Mass Stars
... Low Mass 4.2 light years Stars away! • From ½ all the way down to 0.075% of the Sun’s mass • Burn cool, less than 3500 K. Dim light. • Can live a REALLY long time. 10,000,000,000,000 years? • Our nearest star neighbor is Proxima Centauri, a red dwarf. • Most numerous stars in the entire Universe! ...
... Low Mass 4.2 light years Stars away! • From ½ all the way down to 0.075% of the Sun’s mass • Burn cool, less than 3500 K. Dim light. • Can live a REALLY long time. 10,000,000,000,000 years? • Our nearest star neighbor is Proxima Centauri, a red dwarf. • Most numerous stars in the entire Universe! ...
The Argonauts, background to the constellation Carina Argo Navis
... The Argonauts, background to the constellation Carina Argo Navis (or simply Argo) was a very large constellation in the southern sky that has since been divided into three constellations. It represented the Argo, the ship used by Jason and the Argonauts in Greek mythology. Argo Navis is the only one ...
... The Argonauts, background to the constellation Carina Argo Navis (or simply Argo) was a very large constellation in the southern sky that has since been divided into three constellations. It represented the Argo, the ship used by Jason and the Argonauts in Greek mythology. Argo Navis is the only one ...
Due: January 15, 2014 Name
... 12. Which effect has been useful (and successful) in the search for and identification of black holes in the universe? a. their magnetic fields and their influence on nearby matter. b. the effect of their angular momentum or spin on nearby matter. c. the influence of their intense gravitational fiel ...
... 12. Which effect has been useful (and successful) in the search for and identification of black holes in the universe? a. their magnetic fields and their influence on nearby matter. b. the effect of their angular momentum or spin on nearby matter. c. the influence of their intense gravitational fiel ...
Today`s Powerpoint
... Pulse periods observed from 0.001 sec to 10 seconds - DEMO Explanation: "beamed" radiation from rapidly spinning neutron star. Usually neutron stars are pulsars for 107 years after supernova. ...
... Pulse periods observed from 0.001 sec to 10 seconds - DEMO Explanation: "beamed" radiation from rapidly spinning neutron star. Usually neutron stars are pulsars for 107 years after supernova. ...
Stellar Evolution
... Expansion into a Red Giant Hydrogen in the core completely converted into He: → “Hydrogen burning” (i.e. fusion of H into He) ceases in the core. ...
... Expansion into a Red Giant Hydrogen in the core completely converted into He: → “Hydrogen burning” (i.e. fusion of H into He) ceases in the core. ...
Crab Nebula
![](https://en.wikipedia.org/wiki/Special:FilePath/Crab_Nebula.jpg?width=300)
The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus. It is not, as its name might suggest, in Cancer. The now-current name is due to William Parsons, 3rd Earl of Rosse, who observed the object in 1840 using a 36-inch telescope and produced a drawing that looked somewhat like a crab. Corresponding to a bright supernova recorded by Chinese astronomers in 1054, the nebula was observed later by English astronomer John Bevis in 1731. The nebula was the first astronomical object identified with a historical supernova explosion.At an apparent magnitude of 8.4, comparable to that of Saturn's moon Titan, it is not visible to the naked eye but can be made out using binoculars under favourable conditions. The nebula lies in the Perseus Arm of the Milky Way galaxy, at a distance of about 2.0 kiloparsecs (6,500 ly) from Earth. It has a diameter of 3.4 parsecs (11 ly), corresponding to an apparent diameter of some 7 arcminutes, and is expanding at a rate of about 1,500 kilometres per second (930 mi/s), or 0.5% c.At the center of the nebula lies the Crab Pulsar, a neutron star 28–30 kilometres (17–19 mi) across with a spin rate of 30.2 times per second, which emits pulses of radiation from gamma rays to radio waves. At X-ray and gamma ray energies above 30 keV, the Crab is generally the strongest persistent source in the sky, with measured flux extending to above 10 TeV. The nebula's radiation allows for the detailed studying of celestial bodies that occult it. In the 1950s and 1960s, the Sun's corona was mapped from observations of the Crab's radio waves passing through it, and in 2003, the thickness of the atmosphere of Saturn's moon Titan was measured as it blocked out X-rays from the nebula.