Stellar Evolution Notes
... It takes about 10 billion years for a star with the mass of the Sun to convert all of the hydrogen in its ...
... It takes about 10 billion years for a star with the mass of the Sun to convert all of the hydrogen in its ...
Stellar Evolution Notes
... It takes about 10 billion years for a star with the mass of the Sun to convert all of the hydrogen in its ...
... It takes about 10 billion years for a star with the mass of the Sun to convert all of the hydrogen in its ...
LT 9: I can describe how a protostar becomes a star.
... – Pulsating stars: change in brightness as they expand (cool, dim) and contract (hot, bright) – Cepheid variables: the longer their cycle is the larger their absolute magnitude is – Eclipsing binary: 2 stars of unequal brightness that revolve around each other and appear to change brightness Pulsa ...
... – Pulsating stars: change in brightness as they expand (cool, dim) and contract (hot, bright) – Cepheid variables: the longer their cycle is the larger their absolute magnitude is – Eclipsing binary: 2 stars of unequal brightness that revolve around each other and appear to change brightness Pulsa ...
Death of Low Mass Stars 8 Solar Masses or less
... • As the surface of the Red Giant expands away, the core is exposed, the White Dwarf. • Extremely small, dense and hot. About the size of Earth with a density of 1010 kg/m3 (an object with the volume of 1 grape would have a mass of 1 ton… that’s like the mass of an elephant!!!). • Shines from stored ...
... • As the surface of the Red Giant expands away, the core is exposed, the White Dwarf. • Extremely small, dense and hot. About the size of Earth with a density of 1010 kg/m3 (an object with the volume of 1 grape would have a mass of 1 ton… that’s like the mass of an elephant!!!). • Shines from stored ...
neutron star - Adams State University
... When a high mass star runs out of hydrogen: It’s the same idea as with a low mass star: • Core begins to collapse, and so heats up • Fusion of hydrogen can begin in a shell • This fusion drives the outer layers outward, making a red supergiant ...
... When a high mass star runs out of hydrogen: It’s the same idea as with a low mass star: • Core begins to collapse, and so heats up • Fusion of hydrogen can begin in a shell • This fusion drives the outer layers outward, making a red supergiant ...
Jeopardy Questions
... A: Nova – Material falls on WD, fuses in small burst of energy. Type Ia Supernova – Material falls on WD, builds up until Chandrasekhar limit, and then everything explodes. Core-collapse Supernova – Massive star goes through shell burning until iron, can’t support its own weight, and collapses, leav ...
... A: Nova – Material falls on WD, fuses in small burst of energy. Type Ia Supernova – Material falls on WD, builds up until Chandrasekhar limit, and then everything explodes. Core-collapse Supernova – Massive star goes through shell burning until iron, can’t support its own weight, and collapses, leav ...
June 2016 night sky chart
... The star chart shows the stars and constellations visible in the night sky for Sydney, Melbourne, Canberra, Hobart and Adelaide for June 2016 at about 7:30 pm (local standard time). For Darwin and similar locations the chart will still apply, but some stars will be lost off the southern edge while e ...
... The star chart shows the stars and constellations visible in the night sky for Sydney, Melbourne, Canberra, Hobart and Adelaide for June 2016 at about 7:30 pm (local standard time). For Darwin and similar locations the chart will still apply, but some stars will be lost off the southern edge while e ...
Starry Lives, Starry Skies
... The handout sheet has examples of objects in each stage, but it would be good for students to use the Web or some astronomy books to find examples for themselves. 4. Have them make a star map of the location of one object for each stage, using the Your Sky Tonight star chart. Most sky objects a ...
... The handout sheet has examples of objects in each stage, but it would be good for students to use the Web or some astronomy books to find examples for themselves. 4. Have them make a star map of the location of one object for each stage, using the Your Sky Tonight star chart. Most sky objects a ...
Lec 25.2- STELLAR EVOLUTION SUMMARY
... gamma rays that are radiated into space and can be detected. These emissions, it should be emphasized, are not from the black hole but from the hole's effect on matter being pulled into it before the matter reaches the point of no return. In November 1973, a team of astronomers. at London's Universi ...
... gamma rays that are radiated into space and can be detected. These emissions, it should be emphasized, are not from the black hole but from the hole's effect on matter being pulled into it before the matter reaches the point of no return. In November 1973, a team of astronomers. at London's Universi ...
LIfe of a Star
... creates enormous amounts of energy The size of the star does not change much ...
... creates enormous amounts of energy The size of the star does not change much ...
Mon Jul 4, 2011 4TH OF JULY COSMIC FIREWORKS On the 4th of
... In the summertime, when the skies are clear and dark, it's possible to see a galaxy on display. This galaxy is called the Milky Way, and it is our home, a giant star city, one of billions in the vast emptiness of the universe. The Milky Way is shaped like a spiral disc or pinwheel, some hundred thou ...
... In the summertime, when the skies are clear and dark, it's possible to see a galaxy on display. This galaxy is called the Milky Way, and it is our home, a giant star city, one of billions in the vast emptiness of the universe. The Milky Way is shaped like a spiral disc or pinwheel, some hundred thou ...
Twinkle, Twinkle Little Star
... http://upload.wikimedia.org/wikipedia/commons/7/7f/Betelgeuse_star_(Hubble).jpg ...
... http://upload.wikimedia.org/wikipedia/commons/7/7f/Betelgeuse_star_(Hubble).jpg ...
Yes, we are all star dust. Even Gary!
... and outer layers expand to a giant star, possible nebula, ending as white dwarf. 1.4 – 8.0 = much faster version of above, core includes iron and implodes, which is followed by a large rebound explosion (supernova) > 8.0 = same as above, much faster, but implosion does not end as explosion. Instead ...
... and outer layers expand to a giant star, possible nebula, ending as white dwarf. 1.4 – 8.0 = much faster version of above, core includes iron and implodes, which is followed by a large rebound explosion (supernova) > 8.0 = same as above, much faster, but implosion does not end as explosion. Instead ...
Lives and Deaths of Stars (middle school)
... White dwarf if the remnant is below the Chandrasekhar limit 1.4 solar mass Neutron star if the core mass is less than ~ 3 solar masses Black hole otherwise ...
... White dwarf if the remnant is below the Chandrasekhar limit 1.4 solar mass Neutron star if the core mass is less than ~ 3 solar masses Black hole otherwise ...
12.4 Evolution of Stars More Massive than the Sun
... elements far beyond carbon in its core, leading to a very different fate. Its path across the H-R diagram is essentially a straight line – it stays as just about the same luminosity as it cools off. Eventually the star dies in a violent explosion called a supernova. ...
... elements far beyond carbon in its core, leading to a very different fate. Its path across the H-R diagram is essentially a straight line – it stays as just about the same luminosity as it cools off. Eventually the star dies in a violent explosion called a supernova. ...
powerpoint version
... Sometimes see red shifted absorption lines due to material falling inwards to make a growing star. ...
... Sometimes see red shifted absorption lines due to material falling inwards to make a growing star. ...
SN 1054
SN 1054 is a supernova that was first observed on 4 July 1054 A.D. (hence its name), and that lasted for a period of around two years. The event was recorded in contemporary Chinese astronomy, and references to it are also found in a later (13th-century) Japanese document, and in a document from the Arab world. Furthermore, there are a number of proposed, but doubtful, references from European sources recorded in the 15th century, and perhaps a pictograph associated with the Ancestral Puebloan culture found near the Peñasco Blanco site in New Mexico.The remnant of SN 1054, which consists of debris ejected during the explosion, is known as the Crab Nebula. It is located in the sky near the star Zeta Tauri (ζ Tauri). The core of the exploding star formed a pulsar, called the Crab Pulsar (or PSR B0531+21). The nebula and the pulsar it contains are the most studied astronomical objects outside the Solar System. It is one of the few Galactic supernovae where the date of the explosion is well known. The two objects are the most luminous in their respective categories. For these reasons, and because of the important role it has repeatedly played in the modern era, SN 1054 is the best known supernova in the history of astronomy.The Crab Nebula is easily observed by amateur astronomers thanks to its brightness, and was also catalogued early on by professional astronomers, long before its true nature was understood and identified. When the French astronomer Charles Messier watched for the return of Halley's Comet in 1758, he confused the nebula for the comet, as he was unaware of the former's existence. Due to this error, he created his catalogue of non-cometary nebulous objects, the Messier Catalogue, to avoid such mistakes in the future. The nebula is catalogued as the first Messier object, or M1.