Titelseite
... active regions in the galaxy as well as the objects that can be found there. Elements that are generated at different times in the life of stars: Their detection and relative occurrence can help us to test star models. Instable elements with a long lifetime give information about the element‘s avera ...
... active regions in the galaxy as well as the objects that can be found there. Elements that are generated at different times in the life of stars: Their detection and relative occurrence can help us to test star models. Instable elements with a long lifetime give information about the element‘s avera ...
Goal: To understand how we know distances to
... Apparent vs. absolute magnitudes • If you compare the apparent and absolute magnitudes of an object you get its distance. • How to do that? • 1) spectra – tells you what the mass of the star is by its temperature and its spectral type (although does not work so well for giants – works great for mai ...
... Apparent vs. absolute magnitudes • If you compare the apparent and absolute magnitudes of an object you get its distance. • How to do that? • 1) spectra – tells you what the mass of the star is by its temperature and its spectral type (although does not work so well for giants – works great for mai ...
June 2016 - Flint River Astronomy Club
... poles. That radiation can be detected by x-ray, infrared and visual means. When a neutron star’s magnetic poles and axis of rotation are aligned, the radiation emission is constant. In some cases, however, a neutron star’s magnetic poles are not aligned with its axis, producing an effect like a ligh ...
... poles. That radiation can be detected by x-ray, infrared and visual means. When a neutron star’s magnetic poles and axis of rotation are aligned, the radiation emission is constant. In some cases, however, a neutron star’s magnetic poles are not aligned with its axis, producing an effect like a ligh ...
Goal: To understand how we know distances to various
... Apparent vs. absolute magnitudes • If you compare the apparent and absolute magnitudes of an object you get its distance. • How to do that? • 1) spectra – tells you what the mass of the star is by its temperature and its spectral type (although does not work so well for giants – works great for mai ...
... Apparent vs. absolute magnitudes • If you compare the apparent and absolute magnitudes of an object you get its distance. • How to do that? • 1) spectra – tells you what the mass of the star is by its temperature and its spectral type (although does not work so well for giants – works great for mai ...
Mysteries of Space
... • Astronomers have studied it at length because of this and based on light emission and comparison to our galaxy scientists have concluded it is similar in mass to the Milky Way • Dark matter appears around the Andromeda Galaxy • Dark matter is the most abundant form of matter in the universe: invis ...
... • Astronomers have studied it at length because of this and based on light emission and comparison to our galaxy scientists have concluded it is similar in mass to the Milky Way • Dark matter appears around the Andromeda Galaxy • Dark matter is the most abundant form of matter in the universe: invis ...
Star- large ball of gas held together by large ball of gas held
... molecules that clump up due to gravity. When the clump reaches the size of Jupiter, it creates enough energy by nuclear fusion to shine – becoming a star. For stars that are about the size of our sun, after main sequence they become giants, white dwarfs, and then black dwarfs. For stars larger than ...
... molecules that clump up due to gravity. When the clump reaches the size of Jupiter, it creates enough energy by nuclear fusion to shine – becoming a star. For stars that are about the size of our sun, after main sequence they become giants, white dwarfs, and then black dwarfs. For stars larger than ...
Slide 1
... The particulars of the fusion process in a given star may change during the course of its life, and produce spectacular changes in the appearance and makeup of the star. The types of changes that stars undergo, depending on their size, is the topic of stellar evolution. Stars make the universe inter ...
... The particulars of the fusion process in a given star may change during the course of its life, and produce spectacular changes in the appearance and makeup of the star. The types of changes that stars undergo, depending on their size, is the topic of stellar evolution. Stars make the universe inter ...
Blowing Bubbles in Space: The Birth and Death of Practically
... low-mass stars, such as our Sun. As they reach the ends of their lives, their late RGB superwinds send off large amounts of material into space. Although the nebulae can look like a fireworks display, the process of developing a nebula is (usually!) neither explosive nor instantaneous; it takes plac ...
... low-mass stars, such as our Sun. As they reach the ends of their lives, their late RGB superwinds send off large amounts of material into space. Although the nebulae can look like a fireworks display, the process of developing a nebula is (usually!) neither explosive nor instantaneous; it takes plac ...
Yeatman-Liddell College Preparatory Middle School Winter
... Unlike our Sun, giant stars contract or draw in upon themselves. They begin to absorb energy instead ...
... Unlike our Sun, giant stars contract or draw in upon themselves. They begin to absorb energy instead ...
FRAC TRIVIA I QUIZ - Flint River Astronomy Club
... movie or the deep-sky object from which the seeds came. (Two hints: the object is a Messier object, and its popular name was misspelled in the movie’s title.) 18. (1 pt.) Name a well-known deep-sky object that does not appear in any A.L. observing club list. 19. (1 pt.) True or False: The total numb ...
... movie or the deep-sky object from which the seeds came. (Two hints: the object is a Messier object, and its popular name was misspelled in the movie’s title.) 18. (1 pt.) Name a well-known deep-sky object that does not appear in any A.L. observing club list. 19. (1 pt.) True or False: The total numb ...
The most energetic light ever observed from a few
... mean time we revealed significant features of this enigmatic object thus providing substantial input to our theory colleagues- now it is their move to explain how the things are at work. MAGIC has been designed to be the most suitable instrument among imaging atmospheric Cherenkov telescopes to perf ...
... mean time we revealed significant features of this enigmatic object thus providing substantial input to our theory colleagues- now it is their move to explain how the things are at work. MAGIC has been designed to be the most suitable instrument among imaging atmospheric Cherenkov telescopes to perf ...
proposed october viewing list
... M11 Known as the Wild Duck cluster, this open cluster in the constellation Scutum, (SKEW-tum) is seen best with the 4” refractor at low magnification. It contains more than 2900 stars and is estimated to be about 250 million years old. M11 is receding from us at a speed of 27 km/s. M17 The Omega, or ...
... M11 Known as the Wild Duck cluster, this open cluster in the constellation Scutum, (SKEW-tum) is seen best with the 4” refractor at low magnification. It contains more than 2900 stars and is estimated to be about 250 million years old. M11 is receding from us at a speed of 27 km/s. M17 The Omega, or ...
Common Envelope Evolution Leading to Supernovae with Dense
... interaction, but only ones with a circumstellar extent greater than the radius at which radiation can diffuse out have Type IIn characteristics. The mass loss involved can be & 10M and extends to & 2 × 1015 cm for Type IIn characteristics (see also Smith & McCray 2007). To account for such high mas ...
... interaction, but only ones with a circumstellar extent greater than the radius at which radiation can diffuse out have Type IIn characteristics. The mass loss involved can be & 10M and extends to & 2 × 1015 cm for Type IIn characteristics (see also Smith & McCray 2007). To account for such high mas ...
Stellar Evolution
... • When the hydrogen in the core is almost consumed the balance between gravity pulling in and pressure pushing out is disturbed. • The structure and appearance of the star changes dramatically. • What happens then, depends on the star’s mass. • Two cases: – Low-mass (< 8 x mass of Sun) – High-mass ( ...
... • When the hydrogen in the core is almost consumed the balance between gravity pulling in and pressure pushing out is disturbed. • The structure and appearance of the star changes dramatically. • What happens then, depends on the star’s mass. • Two cases: – Low-mass (< 8 x mass of Sun) – High-mass ( ...
Galaxies - Wallkill Valley Regional High School
... Galaxies contain millions or billions of stars held together by gravity Gravity holds galaxies together in clusters Clusters of galaxies can form even larger groups called superclusters How do we see galaxies? We can see our own Milky Way without the use of a telescope Spyglasses let us see further ...
... Galaxies contain millions or billions of stars held together by gravity Gravity holds galaxies together in clusters Clusters of galaxies can form even larger groups called superclusters How do we see galaxies? We can see our own Milky Way without the use of a telescope Spyglasses let us see further ...
The Life Cycle of Spiral Arm Galaxies
... explode into supernovas, they leave behind the carcasses of black holes. This means that the central bar contains an extremely dense region of black holes. Fast spinning black holes produce strong ...
... explode into supernovas, they leave behind the carcasses of black holes. This means that the central bar contains an extremely dense region of black holes. Fast spinning black holes produce strong ...
Descriptions For Posters
... Way galaxy was just beginning. Young, mostly sun-like stars in the core, or central bulge, provided the building blocks for the galaxy's foundation. Many of these building-block stars have long since burned out, and are now just dying embers. But contained within these dead stars, called white dwarf ...
... Way galaxy was just beginning. Young, mostly sun-like stars in the core, or central bulge, provided the building blocks for the galaxy's foundation. Many of these building-block stars have long since burned out, and are now just dying embers. But contained within these dead stars, called white dwarf ...
test - Scioly.org
... 7) A white dwarf, also called a degenerate dwarf, is a stellar remnant composed mostly of neutron-degenerate matter. 8) The density of a White dwarf is 1 × 109 kg/m3 . Therefore the specific gravity of White Dwarf material is 10,000 SG. 9) A blackbody refers to an opaque object that emits ultraviole ...
... 7) A white dwarf, also called a degenerate dwarf, is a stellar remnant composed mostly of neutron-degenerate matter. 8) The density of a White dwarf is 1 × 109 kg/m3 . Therefore the specific gravity of White Dwarf material is 10,000 SG. 9) A blackbody refers to an opaque object that emits ultraviole ...
Stellar Remnants
... •from 1.4 to about 3 solar masses •Made of pure neutrons – a giant atomic nucleus •About 20 km in diameter •One cc would weigh about a million tons ...
... •from 1.4 to about 3 solar masses •Made of pure neutrons – a giant atomic nucleus •About 20 km in diameter •One cc would weigh about a million tons ...
1 Dr. Steve Hawley Volume 35 Number 04 APRIL 2009
... NASA once again sends people to the Moon starting around 2020, the plan will be much more ambitious—and the hardware is going to need a major upgrade. “Doing all the things we want to do using systems from Apollo would be very risky and perhaps not even possible,” says Frank Peri, director of NASA’s ...
... NASA once again sends people to the Moon starting around 2020, the plan will be much more ambitious—and the hardware is going to need a major upgrade. “Doing all the things we want to do using systems from Apollo would be very risky and perhaps not even possible,” says Frank Peri, director of NASA’s ...
Low-Mass Stars
... What then? • When the hydrogen in the core is almost consumed the balance between gravity pulling in and pressure pushing out is disturbed. • The structure and appearance of the star changes dramatically. • What happens then, depends on the star’s mass. • Two cases: – Low-mass (< 8 x mass of Sun) – ...
... What then? • When the hydrogen in the core is almost consumed the balance between gravity pulling in and pressure pushing out is disturbed. • The structure and appearance of the star changes dramatically. • What happens then, depends on the star’s mass. • Two cases: – Low-mass (< 8 x mass of Sun) – ...
Stellar Evolution
... What then? • When the hydrogen in the core is almost consumed the balance between gravity pulling in and pressure pushing out is disturbed. • The structure and appearance of the star changes dramatically. • What happens then, depends on the star’s mass. • Two cases: – Low-mass (< 8 x mass of Sun) – ...
... What then? • When the hydrogen in the core is almost consumed the balance between gravity pulling in and pressure pushing out is disturbed. • The structure and appearance of the star changes dramatically. • What happens then, depends on the star’s mass. • Two cases: – Low-mass (< 8 x mass of Sun) – ...
Svoboda, PPTX, 14 MB
... Demos Kazanas, Rabindra N. Mohapatra, Shmuel Nussinov, Vigdor L. Teplitz, Yongchao Zhang Supernova bounds on the dark photon using its electromagnetic decay ...
... Demos Kazanas, Rabindra N. Mohapatra, Shmuel Nussinov, Vigdor L. Teplitz, Yongchao Zhang Supernova bounds on the dark photon using its electromagnetic decay ...
Chapter 21
... Betelgeuse a red supergiant, with about 20 times the mass and 800 times the radius of the Sun, so huge that it could easily contain the orbits of Mercury, Venus, Earth, Mars & Jupiter. It will probably explode as a supernova at some point within the next 100,000 years. Even at its relatively remote ...
... Betelgeuse a red supergiant, with about 20 times the mass and 800 times the radius of the Sun, so huge that it could easily contain the orbits of Mercury, Venus, Earth, Mars & Jupiter. It will probably explode as a supernova at some point within the next 100,000 years. Even at its relatively remote ...
The Life Cycle of a Star
... • They can form when the gravitational potential energy—created by a sudden gravitational collapse of a large red giant—heats and expels the star's outer layers, resulting in an explosion. • Also, they can form when a white dwarf ignites carbon fusion, which results in a runaway nuclear fusion react ...
... • They can form when the gravitational potential energy—created by a sudden gravitational collapse of a large red giant—heats and expels the star's outer layers, resulting in an explosion. • Also, they can form when a white dwarf ignites carbon fusion, which results in a runaway nuclear fusion react ...
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.