Review: How does a star`s mass determine its life story?
... same place cannot be in the same state • Adding mass to a white dwarf increases its gravity, forcing electrons into a smaller space • In order to avoid being in the same state some of the electrons need to move faster ...
... same place cannot be in the same state • Adding mass to a white dwarf increases its gravity, forcing electrons into a smaller space • In order to avoid being in the same state some of the electrons need to move faster ...
Our Galaxy, the Milky Way Galaxy
... The further away a star is, the greater the errors can be when calculating their temperature/color because of the ISM interference The further away a star is, the more reddening occurs o We cannot see past a few thousand light years in the PLANE of the Milky Way Galaxy because of ISM We don’t kn ...
... The further away a star is, the greater the errors can be when calculating their temperature/color because of the ISM interference The further away a star is, the more reddening occurs o We cannot see past a few thousand light years in the PLANE of the Milky Way Galaxy because of ISM We don’t kn ...
Integrative Studies 410 Our Place in the Universe
... • measure distances to other galaxies using the periodluminosity relationship for Cepheid variables • Type I supernovae also used to measure distances – Predictable luminosity – a standard candle ...
... • measure distances to other galaxies using the periodluminosity relationship for Cepheid variables • Type I supernovae also used to measure distances – Predictable luminosity – a standard candle ...
Observing Nebulosities: The Cygnus Superbubble Chris
... of expanding interstellar matter are still not well understood. Since, within the Milky Way, Cygnus is located along the local Orion spur, star-forming structures at different distances are possibly located along the line of sight. Indeed, recent X-ray emission findings (Uyaniker et al. 2001) sugges ...
... of expanding interstellar matter are still not well understood. Since, within the Milky Way, Cygnus is located along the local Orion spur, star-forming structures at different distances are possibly located along the line of sight. Indeed, recent X-ray emission findings (Uyaniker et al. 2001) sugges ...
Additional Cosmology Images
... myriad of stars in crystal clear detail. The brilliant open star clusters are located about 200,000 lightyears away and are roughly 65 light-years across. Star clusters can be held together tightly by gravity, as is the case with densely packed crowds of hundreds of thousands of stars, called globul ...
... myriad of stars in crystal clear detail. The brilliant open star clusters are located about 200,000 lightyears away and are roughly 65 light-years across. Star clusters can be held together tightly by gravity, as is the case with densely packed crowds of hundreds of thousands of stars, called globul ...
Module3: Life of a Star
... Supernova remnants are studied at many different wavelengths from optical light to X-rays. Different things are happening in different wavelengths; when we observe in, say the X-ray, we are looking at the bits of the shell that are much hotter than the bits shining in the optical. In this activity w ...
... Supernova remnants are studied at many different wavelengths from optical light to X-rays. Different things are happening in different wavelengths; when we observe in, say the X-ray, we are looking at the bits of the shell that are much hotter than the bits shining in the optical. In this activity w ...
Lecture 11
... Starquakes occur which release huge amount of energy, much of it in gamma rays. SGR 1806-20 radiated in 1/10 second the same energy our sun radiates in a year 50,000 light years away, it heated the Earth’s ionosphere. ...
... Starquakes occur which release huge amount of energy, much of it in gamma rays. SGR 1806-20 radiated in 1/10 second the same energy our sun radiates in a year 50,000 light years away, it heated the Earth’s ionosphere. ...
Virgo constellation
... the arc (curve of the big dippers’ handle) to Arcturus then speed on to Spica” there you will see Virgo’s ear of grain, Spica. It looks like one star, but actually is a binary star with both stars larger and hotter than our sun. Their mutual gravity distorts each star into an egg shape, with the poi ...
... the arc (curve of the big dippers’ handle) to Arcturus then speed on to Spica” there you will see Virgo’s ear of grain, Spica. It looks like one star, but actually is a binary star with both stars larger and hotter than our sun. Their mutual gravity distorts each star into an egg shape, with the poi ...
East Valley Astronomy Club
... New models of the “minimum mass solar nebula” show the nebula really was very dense, but this structure is only understood if the disk was photoevaporating because of a nearby massive star. Meteorites show the Solar System contained live 60Fe, almost certainly ejected by a nearby massive star that w ...
... New models of the “minimum mass solar nebula” show the nebula really was very dense, but this structure is only understood if the disk was photoevaporating because of a nearby massive star. Meteorites show the Solar System contained live 60Fe, almost certainly ejected by a nearby massive star that w ...
Origin of the Elements
... neutrinos and positrons are produced under the extreme conditions in stars. Source: Sky & Telescope, March 2008, 26 ...
... neutrinos and positrons are produced under the extreme conditions in stars. Source: Sky & Telescope, March 2008, 26 ...
Small Wonders: Canes Venatici
... on by both Ursa Major and Bootes, Canes is located in a somewhat barren section of the night sky. Canes (whose name means The Hunting Dogs) has been seen as Bootes pets for at least several hundred years, but the constellation may not have been "stand alone" until sometime in the late 17th century w ...
... on by both Ursa Major and Bootes, Canes is located in a somewhat barren section of the night sky. Canes (whose name means The Hunting Dogs) has been seen as Bootes pets for at least several hundred years, but the constellation may not have been "stand alone" until sometime in the late 17th century w ...
A Type II Supernovae Constraint on $\ nu_e $
... να and νs in Big Bang Nucleosynthesis which may affect the primordial 4 He abundance [2-6]. Constraints on neutrino mixing parameters have been obtained by requiring the predicted 4 He abundance under these neutrino mixings not to exceed the observed value [3-5]. Sterile neutrinos are also suggested ...
... να and νs in Big Bang Nucleosynthesis which may affect the primordial 4 He abundance [2-6]. Constraints on neutrino mixing parameters have been obtained by requiring the predicted 4 He abundance under these neutrino mixings not to exceed the observed value [3-5]. Sterile neutrinos are also suggested ...
Activity: Multiwavelength Bingo - Chandra X
... The unusual shape of the Cartwheel galaxy results from one of the smaller galaxies to the left passing through it about 100 million years ago. This created a huge compression wave, like a ripple in a pond, and this wave triggers intense bouts of star formation. Four of NASA's orbiting observatories ...
... The unusual shape of the Cartwheel galaxy results from one of the smaller galaxies to the left passing through it about 100 million years ago. This created a huge compression wave, like a ripple in a pond, and this wave triggers intense bouts of star formation. Four of NASA's orbiting observatories ...
Supernovae, Neutrinos, and the Chirality of the Amino Acids
... possibility [27] appears to produce some enantioenrichment. Another suggestion [28] assumed that neutrinos emitted by a core-collapse supernova would selectively process the carbon or the hydrogen in the amino acids to produce enantiomerism. This suggestion also did not explain how a predisposition ...
... possibility [27] appears to produce some enantioenrichment. Another suggestion [28] assumed that neutrinos emitted by a core-collapse supernova would selectively process the carbon or the hydrogen in the amino acids to produce enantiomerism. This suggestion also did not explain how a predisposition ...
Astronomy 110 Announcements: How are the lives of stars with
... According to conservation of angular momentum, what would happen if a star orbiting in a direction opposite the neutron’s star rotation fell onto a neutron star? A. The neutron star’s rotation would speed up. B. The neutron star’s rotation would slow down. C. Nothing, the directions would cancel eac ...
... According to conservation of angular momentum, what would happen if a star orbiting in a direction opposite the neutron’s star rotation fell onto a neutron star? A. The neutron star’s rotation would speed up. B. The neutron star’s rotation would slow down. C. Nothing, the directions would cancel eac ...
Copyright 1995 Scientific American, Inc.
... The gamma rays triggered detectors intended to monitor illicit nuclear tests, but it was not until six years later that the observations were made public; even then, another 20 years passed before the burstsÕ origin was understood. Many people now think gamma-ray bursts are emitted by twin neutron s ...
... The gamma rays triggered detectors intended to monitor illicit nuclear tests, but it was not until six years later that the observations were made public; even then, another 20 years passed before the burstsÕ origin was understood. Many people now think gamma-ray bursts are emitted by twin neutron s ...
Research proposal uploaded for ESO fellowship
... How is the star formation history of galaxies affected by supernovae feedback? Is this feedback powerful enough as to drive the global star formation rate decline of the universe? Supernova feedback represents a long standing problem in galaxy formation model. Currently, toy models are used to treat ...
... How is the star formation history of galaxies affected by supernovae feedback? Is this feedback powerful enough as to drive the global star formation rate decline of the universe? Supernova feedback represents a long standing problem in galaxy formation model. Currently, toy models are used to treat ...
What is a white dwarf?
... that nothing can move faster than light. [The speed of limit is the same relative to all observers.] When electron speeds in a white dwarf approach the speed of light, electron degeneracy pressure can no longer support the white dwarf. ...
... that nothing can move faster than light. [The speed of limit is the same relative to all observers.] When electron speeds in a white dwarf approach the speed of light, electron degeneracy pressure can no longer support the white dwarf. ...
Nuclear Synthesis
... • Spin rapidly as small. Large range from >100 Hz to less than 1 Hz • EM radiation from protons and electrons (have about one p or e for every 100 n) • Observe as repeating flashes of light called PULSARS and are seen in debris of known supernova explosions • Discovered in 1967 by grad student J ...
... • Spin rapidly as small. Large range from >100 Hz to less than 1 Hz • EM radiation from protons and electrons (have about one p or e for every 100 n) • Observe as repeating flashes of light called PULSARS and are seen in debris of known supernova explosions • Discovered in 1967 by grad student J ...
Chapter 14 The Milky Way Galaxy
... and the other from the top, which are thought to resemble the Milky Way: ...
... and the other from the top, which are thought to resemble the Milky Way: ...
Measuring Stars
... Since Type Ia Supernovae involve an explosion that occurs around a fixed mass (1.4Mʘ ), they are a very homogeneous events, and have about the same luminosity. So they are like standard candles, wherever they occur, they have the same intrinsic luminosity. If we see a type Ia supernova somewhere (in ...
... Since Type Ia Supernovae involve an explosion that occurs around a fixed mass (1.4Mʘ ), they are a very homogeneous events, and have about the same luminosity. So they are like standard candles, wherever they occur, they have the same intrinsic luminosity. If we see a type Ia supernova somewhere (in ...
PowerPoint Presentation - Center for Gravitational Wave Physics
... A private scientific observatory based in Santa Barbara that owns and operates 2 m Faulkes telescopes in Maui and Australia, and which will: • Construct and operate ~6 sites at multiple longitudes with 3x1 meter telescopes for continuous coverage of transients, transits, etc.. • Each telescope will ...
... A private scientific observatory based in Santa Barbara that owns and operates 2 m Faulkes telescopes in Maui and Australia, and which will: • Construct and operate ~6 sites at multiple longitudes with 3x1 meter telescopes for continuous coverage of transients, transits, etc.. • Each telescope will ...
ASTR-1020: Astronomy II Course Lecture Notes - Faculty
... 4. 0.08M < M < 0.4M : These stars are totally convective, and as such, helium ash gets uniformly mixed throughout the star. No inert He core develops, hence no H-shell burning and no expansion into a red giant. After hydrogen is exhausted, the entire star contracts until the helium becomes degener ...
... 4. 0.08M < M < 0.4M : These stars are totally convective, and as such, helium ash gets uniformly mixed throughout the star. No inert He core develops, hence no H-shell burning and no expansion into a red giant. After hydrogen is exhausted, the entire star contracts until the helium becomes degener ...
The Vampire Stars - d_smith.lhseducators.com
... leaves behind a cloud or supernova remnant. • These remnants last for hundreds of thousands of years. New (small) stars can be formed from their gases and dust. ...
... leaves behind a cloud or supernova remnant. • These remnants last for hundreds of thousands of years. New (small) stars can be formed from their gases and dust. ...
file - University of California San Diego
... emission line. A redshift of two or greater will pull this emission line from the ultraviolet into the visible range. A large number of weaker absorption lines produced by Lyman alpha from these quasars remain obscured in the UV range, however, at wavelengths just short of the transition to the visi ...
... emission line. A redshift of two or greater will pull this emission line from the ultraviolet into the visible range. A large number of weaker absorption lines produced by Lyman alpha from these quasars remain obscured in the UV range, however, at wavelengths just short of the transition to the visi ...
History of supernova observation
The known history of supernova observation goes back to 185 CE, when, supernova SN 185 appeared, the oldest appearance of a supernova recorded by humankind. Several additional supernovae within the Milky Way galaxy have been recorded since that time, with SN 1604 being the most recent supernova to be observed in this galaxy.Since the development of the telescope, the field of supernova discovery has expanded to other galaxies. These occurrences provide important information on the distances of galaxies. Successful models of supernova behavior have also been developed, and the role of supernovae in the star formation process is now increasingly understood.