Earth Science
... dense space that burst apart in an enormous explosion called the "big bang." This is the big bang theory of the origin of the universe. ...
... dense space that burst apart in an enormous explosion called the "big bang." This is the big bang theory of the origin of the universe. ...
X-Ray Astronomy and Accretion Phenomena
... large mass loss rates in the form of a large wind, much stronger than the solar wind. The shocks in the wind heat the plasma which then emits X-rays. Observations spread out in time of these stars has allows researchers to show that sometimes the wind is confined to a plane by a magnetic field, as t ...
... large mass loss rates in the form of a large wind, much stronger than the solar wind. The shocks in the wind heat the plasma which then emits X-rays. Observations spread out in time of these stars has allows researchers to show that sometimes the wind is confined to a plane by a magnetic field, as t ...
Assignment 10
... ____ 23. Active radio galaxies can display a. strong emission from a small central source b. long jets of radio emissions c. two lobes (regions of radio emission) that can be quite far from the galaxy's center d. all of the above e. none of the above ____ 24. A friend of yours who is a science ficti ...
... ____ 23. Active radio galaxies can display a. strong emission from a small central source b. long jets of radio emissions c. two lobes (regions of radio emission) that can be quite far from the galaxy's center d. all of the above e. none of the above ____ 24. A friend of yours who is a science ficti ...
GenGeoAstroII_Stars
... 2) Distance measurements are difficult 3) Our view towards the center is obscured by gas and dust ...
... 2) Distance measurements are difficult 3) Our view towards the center is obscured by gas and dust ...
nasafinal - University of Oregon
... NASA has recently launched two satellite observatories whose capabilities are directly related to current faculty research that is underway at the Pine Mountain Observatory. These missions are 1) The Spitzer Space Telescope (SST) – which is an imaging telescope that operates in the infrared (spectra ...
... NASA has recently launched two satellite observatories whose capabilities are directly related to current faculty research that is underway at the Pine Mountain Observatory. These missions are 1) The Spitzer Space Telescope (SST) – which is an imaging telescope that operates in the infrared (spectra ...
Notes HERE
... bursts have been observed shows no “clumping” of bursts anywhere, particularly not within the Milky Way. Therefore, the bursts must originate from outside our Galaxy. ...
... bursts have been observed shows no “clumping” of bursts anywhere, particularly not within the Milky Way. Therefore, the bursts must originate from outside our Galaxy. ...
Hubble`s Law is the relation between the recession velocity of a
... In the spiral arms of galaxies, we see bright, blue, highly luminous O and B stars. Since these stars have very short lifetimes, we know that they can not have moved far from where they were born. We also see, strung out like beads along the arms, regions of ionized hydrogen, which are lit up from t ...
... In the spiral arms of galaxies, we see bright, blue, highly luminous O and B stars. Since these stars have very short lifetimes, we know that they can not have moved far from where they were born. We also see, strung out like beads along the arms, regions of ionized hydrogen, which are lit up from t ...
The Milky Way Galaxy
... the observed locations of other nearby galaxies. • The recent estimates range from 130 km/s to 1,000 km/s. ...
... the observed locations of other nearby galaxies. • The recent estimates range from 130 km/s to 1,000 km/s. ...
Goal: To understand the expansion of our universe.
... • A) Quasars are made out of materials unknown in the 1950s. • B) They made a mistake with the observations. • C) The lines were Doppler shifted by a factor of a few. • D) They forgot to take relativity into account. ...
... • A) Quasars are made out of materials unknown in the 1950s. • B) They made a mistake with the observations. • C) The lines were Doppler shifted by a factor of a few. • D) They forgot to take relativity into account. ...
13 Space Photos To Remind You The Universe Is
... This is a starburst galaxy — a name given to galaxies that show unusually high rates of star formation. The regions where new stars are being born are highlighted by sparkling bright blue regions along the galactic arms. ...
... This is a starburst galaxy — a name given to galaxies that show unusually high rates of star formation. The regions where new stars are being born are highlighted by sparkling bright blue regions along the galactic arms. ...
G060048-00 - DCC
... Summary: Key points • Main obstacles to progress: – Source model : intrinsic LF and beaming angle distrib …main limit (experimentally, theoretically) – Starburst-mode SFR critical [IMF], but not constrained ...
... Summary: Key points • Main obstacles to progress: – Source model : intrinsic LF and beaming angle distrib …main limit (experimentally, theoretically) – Starburst-mode SFR critical [IMF], but not constrained ...
Star and Galaxies Chapter 13
... • Star begins its life as a nebula, (parts of old stars that ejected enormous amounts of matter during its lifetime) • Star cores created during supernovas produce larger atoms of carbon and iron • These stars formed from supernovas and nebulas contain heavier elements that could only have formed fr ...
... • Star begins its life as a nebula, (parts of old stars that ejected enormous amounts of matter during its lifetime) • Star cores created during supernovas produce larger atoms of carbon and iron • These stars formed from supernovas and nebulas contain heavier elements that could only have formed fr ...
Star and Galaxies Chapter 13 2013
... • Star begins its life as a nebula, (parts of old stars that ejected enormous amounts of matter during its lifetime) • Star cores created during supernovas produce larger atoms of carbon and iron • These stars formed from supernovas and nebulas contain heavier elements that could only have formed fr ...
... • Star begins its life as a nebula, (parts of old stars that ejected enormous amounts of matter during its lifetime) • Star cores created during supernovas produce larger atoms of carbon and iron • These stars formed from supernovas and nebulas contain heavier elements that could only have formed fr ...
globular cluster - Harding University
... As early as 1914, Slipher, working at the Lowell Observatory had observed that a large number of spiral galaxies that he had been studying exhibited a red shift in their spectra – indicating that most of these galaxies were moving away from us. During the 1920’s Edwin Hubble determined the distanc ...
... As early as 1914, Slipher, working at the Lowell Observatory had observed that a large number of spiral galaxies that he had been studying exhibited a red shift in their spectra – indicating that most of these galaxies were moving away from us. During the 1920’s Edwin Hubble determined the distanc ...
CHAPTER 13 Neutron Stars and Black Holes Clickers
... The lighthouse model explains how a) pulsars can be used as interstellar navigation beacons. b) the period of pulsation increases as a neutron star collapses. c) pulsars have their rotation axis pointing toward Earth. d) a rotating neutron star generates an observable beam of light. ...
... The lighthouse model explains how a) pulsars can be used as interstellar navigation beacons. b) the period of pulsation increases as a neutron star collapses. c) pulsars have their rotation axis pointing toward Earth. d) a rotating neutron star generates an observable beam of light. ...
printer-friendly sample test questions
... 1st Item Specification: Recognize the red shift effect and know that the most distant objects have the greatest degree of red shift. Depth of Knowledge Level 1 1. The expansion of the universe was first deduced from A. Edwin Hubble showing that more distant galaxies are moving away more rapidly. B. ...
... 1st Item Specification: Recognize the red shift effect and know that the most distant objects have the greatest degree of red shift. Depth of Knowledge Level 1 1. The expansion of the universe was first deduced from A. Edwin Hubble showing that more distant galaxies are moving away more rapidly. B. ...
Neutron Stars
... • Our atoms were once parts of stars that died more than 4.6 billion years ago, whose remains were swept up into the solar system when the Sun formed ...
... • Our atoms were once parts of stars that died more than 4.6 billion years ago, whose remains were swept up into the solar system when the Sun formed ...
Name: Notes – #54 White Dwarf Supernovae
... 9. Radioactive nickel is created that then decays into _______________ and then into ________________. In the process _________________________ (very high energy light) is produced. 10. How much nickel is formed during a Type 1a supernova explosion? 11. What would we see if the radioactive nickel a ...
... 9. Radioactive nickel is created that then decays into _______________ and then into ________________. In the process _________________________ (very high energy light) is produced. 10. How much nickel is formed during a Type 1a supernova explosion? 11. What would we see if the radioactive nickel a ...
Full 11x8.5" Calendar, High Resolution - Chandra X
... This deep image from NASA’s Chandra X-ray Observatory shows the Vela pulsar, a neutron star that was formed when a massive star collapsed. In the upper right is a fast moving jet of particles produced by the pulsar. The pulsar is about 1,000 light years from Earth, and makes over 11 complete rotatio ...
... This deep image from NASA’s Chandra X-ray Observatory shows the Vela pulsar, a neutron star that was formed when a massive star collapsed. In the upper right is a fast moving jet of particles produced by the pulsar. The pulsar is about 1,000 light years from Earth, and makes over 11 complete rotatio ...
Slide 1
... hydrogen • Gravitational collapse forms protogalactic clouds • First stars are born in this spheroid (such stars are billions of years old “fossil record”) ...
... hydrogen • Gravitational collapse forms protogalactic clouds • First stars are born in this spheroid (such stars are billions of years old “fossil record”) ...
Life Cycle of Stars
... Is a barred spiral galaxy with two spiral arms. The central bulge is a huge collection of old stars. It is surrounded by spinning disc of newer stars and clumps of gas and dust. Our solar system is located on the inner edge of one of the spiral arms. A massive black hole is located at the cent ...
... Is a barred spiral galaxy with two spiral arms. The central bulge is a huge collection of old stars. It is surrounded by spinning disc of newer stars and clumps of gas and dust. Our solar system is located on the inner edge of one of the spiral arms. A massive black hole is located at the cent ...
Hubble’s Law & Black Holes at a Galaxy’s Center
... RS = 3km M/M~. RS = 3km if M=M~. RS = 3×106km (3 times moon’s orbit) if M=106M~. RS = 3×109km (Saturn’s) if M=109M~. ...
... RS = 3km M/M~. RS = 3km if M=M~. RS = 3×106km (3 times moon’s orbit) if M=106M~. RS = 3×109km (Saturn’s) if M=109M~. ...
Neutron Stars
... A. Yes, because due to conservation of angular momentum the neutron star will always be spinning. B. Yes, neutron stars always give off pulses of light which we can detect with sensitive enough telescopes. C. No, some neutron stars don’t spin. D. No, it depends on the orientation of the neutron ...
... A. Yes, because due to conservation of angular momentum the neutron star will always be spinning. B. Yes, neutron stars always give off pulses of light which we can detect with sensitive enough telescopes. C. No, some neutron stars don’t spin. D. No, it depends on the orientation of the neutron ...
NIE10x301Sponsor Thank You (Page 1)
... for him but popular targets for astronomers ever since. Sir William Herschel (1738-1822) and other astronomers would turn larger and larger telescopes towards these catalogued “nebulosities” and discover many to have a generally circular, and often spiral-shaped, structure; they called these spiral ...
... for him but popular targets for astronomers ever since. Sir William Herschel (1738-1822) and other astronomers would turn larger and larger telescopes towards these catalogued “nebulosities” and discover many to have a generally circular, and often spiral-shaped, structure; they called these spiral ...
Gamma-ray burst
Gamma-ray bursts (GRBs) are flashes of gamma rays associated with extremely energetic explosions that have been observed in distant galaxies. They are the brightest electromagnetic events known to occur in the universe. Bursts can last from ten milliseconds to several hours. The initial burst is usually followed by a longer-lived ""afterglow"" emitted at longer wavelengths (X-ray, ultraviolet, optical, infrared, microwave and radio).Most observed GRBs are believed to consist of a narrow beam of intense radiation released during a supernova or hypernova as a rapidly rotating, high-mass star collapses to form a neutron star, quark star, or black hole. A subclass of GRBs (the ""short"" bursts) appear to originate from a different process – this may be due to the merger of binary neutron stars. The cause of the precursor burst observed in some of these short events may be due to the development of a resonance between the crust and core of such stars as a result of the massive tidal forces experienced in the seconds leading up to their collision, causing the entire crust of the star to shatter.The sources of most GRBs are billions of light years away from Earth, implying that the explosions are both extremely energetic (a typical burst releases as much energy in a few seconds as the Sun will in its entire 10-billion-year lifetime) and extremely rare (a few per galaxy per million years). All observed GRBs have originated from outside the Milky Way galaxy, although a related class of phenomena, soft gamma repeater flares, are associated with magnetars within the Milky Way. It has been hypothesized that a gamma-ray burst in the Milky Way, pointing directly towards the Earth, could cause a mass extinction event.GRBs were first detected in 1967 by the Vela satellites, a series of satellites designed to detect covert nuclear weapons tests. Hundreds of theoretical models were proposed to explain these bursts in the years following their discovery, such as collisions between comets and neutron stars. Little information was available to verify these models until the 1997 detection of the first X-ray and optical afterglows and direct measurement of their redshifts using optical spectroscopy, and thus their distances and energy outputs. These discoveries, and subsequent studies of the galaxies and supernovae associated with the bursts, clarified the distance and luminosity of GRBs. These facts definitively placed them in distant galaxies and also connected long GRBs with the explosion of massive stars, the only possible source for the energy outputs observed.