The Danger of Deadly Cosmic Explosions
... radiation • Penetrates underground and underseas. • Equivalent to 1 kiloton TNT / km2 over earth surface • Kills everything exposed. • Destroys atmosphere, brings on nuclear winter. ...
... radiation • Penetrates underground and underseas. • Equivalent to 1 kiloton TNT / km2 over earth surface • Kills everything exposed. • Destroys atmosphere, brings on nuclear winter. ...
Surveys of Stars, The interstellar medium
... The Coronal Gas Additional component of very hot, low-density gas in the ISM: T ~ 1 million K n ~ 0.001 particles/cm3 ...
... The Coronal Gas Additional component of very hot, low-density gas in the ISM: T ~ 1 million K n ~ 0.001 particles/cm3 ...
The Lives of Stars
... After iron core stage no fusion to counteract gravity Core collapses Massive shock wave bursts from the star’s surface (Supernova) ...
... After iron core stage no fusion to counteract gravity Core collapses Massive shock wave bursts from the star’s surface (Supernova) ...
The Fates of Stars Mass-Luminosity Relation: Lifetime Relation:
... be perfectly accurate; just show the general trend.) Remember that the temp. axis goes backwards. 2. Calculate the mass and total lifetime of one of these stars and fill this entries in the table. Make sure to translate the lifetime to years. (You may do the other stars if you have extra time.) 3. U ...
... be perfectly accurate; just show the general trend.) Remember that the temp. axis goes backwards. 2. Calculate the mass and total lifetime of one of these stars and fill this entries in the table. Make sure to translate the lifetime to years. (You may do the other stars if you have extra time.) 3. U ...
source
... be perfectly accurate; just show the general trend.) Remember that the temp. axis goes backwards. 2. Calculate the mass and total lifetime of one of these stars and fill this entries in the table. Make sure to translate the lifetime to years. (You may do the other stars if you have extra time.) 3. U ...
... be perfectly accurate; just show the general trend.) Remember that the temp. axis goes backwards. 2. Calculate the mass and total lifetime of one of these stars and fill this entries in the table. Make sure to translate the lifetime to years. (You may do the other stars if you have extra time.) 3. U ...
INV 12B MOTION WITH CHANGING SPEED DRY LAB DATA
... 3. How does the sun compare to the other stars on the main sequence? (Hint: The sun’s color is …..What part of the main sequence is it in – upper left, lower left, etc.?) ...
... 3. How does the sun compare to the other stars on the main sequence? (Hint: The sun’s color is …..What part of the main sequence is it in – upper left, lower left, etc.?) ...
Discussion Activity #13
... 7. Why do we believe that most of the mass of the Milky Way is in the form of dark matter? A. Theoretical models of galaxy formation suggest that a galaxy cannot form unless it has at least 10 times as much matter as we see in the Milky Way disk, suggesting that the halo is full of dark matter. B. T ...
... 7. Why do we believe that most of the mass of the Milky Way is in the form of dark matter? A. Theoretical models of galaxy formation suggest that a galaxy cannot form unless it has at least 10 times as much matter as we see in the Milky Way disk, suggesting that the halo is full of dark matter. B. T ...
PH507 - University of Kent
... Depending on their initial masses and the rate of mass loss, they may explode as yellow hypergiants or luminous blue variables, or they may become Wolf-Rayet stars before exploding in a core collapse supernova. Identifying whether Deneb is currently evolving towards a red supergiant or is currently ...
... Depending on their initial masses and the rate of mass loss, they may explode as yellow hypergiants or luminous blue variables, or they may become Wolf-Rayet stars before exploding in a core collapse supernova. Identifying whether Deneb is currently evolving towards a red supergiant or is currently ...
29.3-stellar-evolution
... The density and temp in a star increase toward the center, where energy is generated by nuclear fusion. Stellar Evolution As long as a star is changing hydrogen into helium, nuclear fusion, it will be a main sequence star. Star formation The formation of a star begins with a cloud of dust and ...
... The density and temp in a star increase toward the center, where energy is generated by nuclear fusion. Stellar Evolution As long as a star is changing hydrogen into helium, nuclear fusion, it will be a main sequence star. Star formation The formation of a star begins with a cloud of dust and ...
summary of key concepts: week #1
... As well as sunspots, we can observe a `boiling’ pattern on the photosphere. Technically this is called granulation, and it’s the surface manifestation of a process called convection in which hot gas rises to the surface, loses energy and cools, before dropping back down. Convection is how the energ ...
... As well as sunspots, we can observe a `boiling’ pattern on the photosphere. Technically this is called granulation, and it’s the surface manifestation of a process called convection in which hot gas rises to the surface, loses energy and cools, before dropping back down. Convection is how the energ ...
Stars - Denbigh Baptist Christian School
... Sizes and Distances of Stars Dwarfs – small and medium Our Sun has diameter of 865,000 miles (1,400,000 km) This size makes it a medium-sized yellow star. Giant stars – 10’s – 100’s of times larger and 100’s times more luminous. Supergiants – 100’s times larger and 1000’s times more luminous. Next c ...
... Sizes and Distances of Stars Dwarfs – small and medium Our Sun has diameter of 865,000 miles (1,400,000 km) This size makes it a medium-sized yellow star. Giant stars – 10’s – 100’s of times larger and 100’s times more luminous. Supergiants – 100’s times larger and 1000’s times more luminous. Next c ...
Chapter 26
... Gives off energy in the form of electromagnetic radiation 2. The sun’s energy is produced in its central region by the fusion of hydrogen nuclei into helium nuclei. 3. Been a stable energy source for billions of years. 4. The sun remains stable because the inward pull of gravity balances outward pus ...
... Gives off energy in the form of electromagnetic radiation 2. The sun’s energy is produced in its central region by the fusion of hydrogen nuclei into helium nuclei. 3. Been a stable energy source for billions of years. 4. The sun remains stable because the inward pull of gravity balances outward pus ...
Lecture 13, PPT version
... • Stars had to come from somewhere (the Big Bang didn’t make stars) • When stars die, their guts have to go somewhere • If those “somewheres” weren’t the same place, we wouldn’t be here! (a topic for after Spring Break) ...
... • Stars had to come from somewhere (the Big Bang didn’t make stars) • When stars die, their guts have to go somewhere • If those “somewheres” weren’t the same place, we wouldn’t be here! (a topic for after Spring Break) ...
Stars and the Sun
... – Big enough to swallow first 3 planets – Uses He other elements for about 10 million years ...
... – Big enough to swallow first 3 planets – Uses He other elements for about 10 million years ...
The Life Cycle of Stars Webquest
... convert hydrogen into helium by means of a process known as. 2. What gives a star its energy? 3. How many protons does a standard hydrogen atom have in its nucleus? ...
... convert hydrogen into helium by means of a process known as. 2. What gives a star its energy? 3. How many protons does a standard hydrogen atom have in its nucleus? ...
HERE - physicsisphun.org
... • Cooler objects glow with light intensity at the longer wavelengths or more toward the red end of the spectrum. Spectral Lines and composition ...
... • Cooler objects glow with light intensity at the longer wavelengths or more toward the red end of the spectrum. Spectral Lines and composition ...
Lecture6
... Example: NGC 2023 in Orion Nebula, Pleiades. See CD pictures in class, and Fig. II-43, 44, 48. ...
... Example: NGC 2023 in Orion Nebula, Pleiades. See CD pictures in class, and Fig. II-43, 44, 48. ...
Star Life Cycles Stellar Nebula
... Star runs out of fuel, and force of gravity starts to condense remaining material Incredible inward force restarts nuclear fusion, causing an incredible explosion ...
... Star runs out of fuel, and force of gravity starts to condense remaining material Incredible inward force restarts nuclear fusion, causing an incredible explosion ...
lecture 27 nuclar fusion in stars
... The sun became hot enough to glow, and the radiation pressure of the light swept away the dust and gas in the solar system. The core kept collapsing, and the temperature of the center of the cloud kept increasing eventually reaching millions of degrees, hot enough for nuclear fusion of hydrogen to t ...
... The sun became hot enough to glow, and the radiation pressure of the light swept away the dust and gas in the solar system. The core kept collapsing, and the temperature of the center of the cloud kept increasing eventually reaching millions of degrees, hot enough for nuclear fusion of hydrogen to t ...
Lecture 7 Stars and Galaxies and Nebula, (Oh My!) Feb 18 2003
... Outer layers of gas are blown off from the core of a star. The core often goes on to become a white dwarf. The eject gas is illuminated by the remaining star. This is the fate of most stars, including our own Sun. ...
... Outer layers of gas are blown off from the core of a star. The core often goes on to become a white dwarf. The eject gas is illuminated by the remaining star. This is the fate of most stars, including our own Sun. ...
Science Quiz
... The multiple choice quiz will consist of about 20 questions covering the following topics: ...
... The multiple choice quiz will consist of about 20 questions covering the following topics: ...
Ch 28 Fact Sheet
... ________________ 3. Diagram that compares the luminosity of a star to its colorh ________________ 4. Draw a convex lens. ________________ 5. Draw a concave lens. ________________ 6. Which is faster the speed of light or the speed of sound? ________________ 7. Telescope that is at an advantage becaus ...
... ________________ 3. Diagram that compares the luminosity of a star to its colorh ________________ 4. Draw a convex lens. ________________ 5. Draw a concave lens. ________________ 6. Which is faster the speed of light or the speed of sound? ________________ 7. Telescope that is at an advantage becaus ...
- ALMA Observatory
... as it aged. It grew a lot, but as it produced no extra heat, it went cold. As its temperature dropped, the star turned redder. This may seem odd, given that in our daily lives we usually associate the color red with hot ...
... as it aged. It grew a lot, but as it produced no extra heat, it went cold. As its temperature dropped, the star turned redder. This may seem odd, given that in our daily lives we usually associate the color red with hot ...
11.1 Stars - St John Brebeuf
... Sun can become black holes instead of neutron stars. The same process that produces a neutron star produces an area so massive and yet so small that the gravity it produces traps everything - even light! ...
... Sun can become black holes instead of neutron stars. The same process that produces a neutron star produces an area so massive and yet so small that the gravity it produces traps everything - even light! ...
Star formation
Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as ""stellar nurseries"" or ""star-forming regions"", collapse to form stars. As a branch of astronomy, star formation includes the study of the interstellar medium (ISM) and giant molecular clouds (GMC) as precursors to the star formation process, and the study of protostars and young stellar objects as its immediate products. It is closely related to planet formation, another branch of astronomy. Star formation theory, as well as accounting for the formation of a single star, must also account for the statistics of binary stars and the initial mass function.In June 2015, astronomers reported evidence for Population III stars in the Cosmos Redshift 7 galaxy at z = 6.60. Such stars are likely to have existed in the very early universe (i.e., at high redshift), and may have started the production of chemical elements heavier than hydrogen that are needed for the later formation of planets and life as we know it.