GY 112 Lecture Notes - University of South Alabama
... neutrons and electrons began to “condense”. Within a few fractions of a second, atoms formed which eventually gathered to form stars, galaxies and every other component of the Universe. If you would like to read more about the determination of the Universe’s age, as well as more about it’s formation ...
... neutrons and electrons began to “condense”. Within a few fractions of a second, atoms formed which eventually gathered to form stars, galaxies and every other component of the Universe. If you would like to read more about the determination of the Universe’s age, as well as more about it’s formation ...
When light passes through a medium, some light is removed
... White light is composed of many different wavelengths. When light passes through a medium, some light is removed. Knowing what light is removed, tells us about the substance(s) the light passed through. Connect rainbow type spectra to 2 D graphical representation. (also distinguish between absorptio ...
... White light is composed of many different wavelengths. When light passes through a medium, some light is removed. Knowing what light is removed, tells us about the substance(s) the light passed through. Connect rainbow type spectra to 2 D graphical representation. (also distinguish between absorptio ...
Notes 1 - cloudfront.net
... ~ a small star composed mostly of electron-degenerate matter ~ density - 1 x 109 kg/m3 ~ it no longer undergoes fusion reactions, so the star has no source of energy ~ it is Earth-sized Type 1A supernova: ~ a sub-category of cataclysmic variable stars that results from the violent explosion of a whi ...
... ~ a small star composed mostly of electron-degenerate matter ~ density - 1 x 109 kg/m3 ~ it no longer undergoes fusion reactions, so the star has no source of energy ~ it is Earth-sized Type 1A supernova: ~ a sub-category of cataclysmic variable stars that results from the violent explosion of a whi ...
Astronomy - Dalriada at dalriada.org.uk
... Star clusters are important because they are closely related to each other in space. They probably all formed at about the same time from the same giant molecular cloud, so they should have a similar chemical composition. Because they are relatively closely co-located their relative apparent magnitu ...
... Star clusters are important because they are closely related to each other in space. They probably all formed at about the same time from the same giant molecular cloud, so they should have a similar chemical composition. Because they are relatively closely co-located their relative apparent magnitu ...
The Life Cycle of Spiral Arm Galaxies
... As a star goes supernova, it releases a great amount of energy (light) and also ejects a massive amount of matter (galactic cosmic rays), which are charged particles such as protons and pieces of ...
... As a star goes supernova, it releases a great amount of energy (light) and also ejects a massive amount of matter (galactic cosmic rays), which are charged particles such as protons and pieces of ...
PP 23-The Solar System
... The sun is nearly all hydrogen and helium, with traces (less than 2% by mass in total) of elements with heavier nuclei. ...
... The sun is nearly all hydrogen and helium, with traces (less than 2% by mass in total) of elements with heavier nuclei. ...
Science Framework for California Public Schools
... material consisted of hydrogen and helium created during the big bang, but the material also included heavier elements formed by nucleosynthesis in massive stars ...
... material consisted of hydrogen and helium created during the big bang, but the material also included heavier elements formed by nucleosynthesis in massive stars ...
Candles in the Dark
... ades. Not all stars are as constant as this, and astronomers know of thousands of variable stars ...
... ades. Not all stars are as constant as this, and astronomers know of thousands of variable stars ...
Lecture 34: Habitable Zones around Stars
... Region around the Sun where liquid water is stable on the surface of a planet at a pressure of 1 atmosphere. ...
... Region around the Sun where liquid water is stable on the surface of a planet at a pressure of 1 atmosphere. ...
Theory of the Infinite Universe
... process releases energy. Massive stars begin as a giant ball of burning hydrogen. Over time the composition of the massive star is converted into helium. The nucleosynthesis, or fusion of lighter ...
... process releases energy. Massive stars begin as a giant ball of burning hydrogen. Over time the composition of the massive star is converted into helium. The nucleosynthesis, or fusion of lighter ...
Astrophysics
... Red supergiants are among the most largest of stars in the Universe and are major contributors of heavy elements to the interstellar medium. Their immense mass-loss rates (up to 10 orders of magnitude greater than the solar value) play a key role in galactic chemical evolution but represent a challe ...
... Red supergiants are among the most largest of stars in the Universe and are major contributors of heavy elements to the interstellar medium. Their immense mass-loss rates (up to 10 orders of magnitude greater than the solar value) play a key role in galactic chemical evolution but represent a challe ...
Mining the MACHO dataset
... • The difference between these is the logarithm of the ratio of intensities of blue and red light. Called the colour index. • Summary features of the light curves are obtained from the colour and magnitudes by forming the average (or median) over time, the amplitude of the fluctuations, the average ...
... • The difference between these is the logarithm of the ratio of intensities of blue and red light. Called the colour index. • Summary features of the light curves are obtained from the colour and magnitudes by forming the average (or median) over time, the amplitude of the fluctuations, the average ...
Stellar Nebulae
... Composed mainly of molecular hydrogen and helium, with small amounts of heavier gases, they are the birth place of new stars and planets. Molecular clouds that exceed the mass of 100,000 suns are called giant molecular clouds. Giant molecular clouds are the largest inhabitants of galaxies, reaching ...
... Composed mainly of molecular hydrogen and helium, with small amounts of heavier gases, they are the birth place of new stars and planets. Molecular clouds that exceed the mass of 100,000 suns are called giant molecular clouds. Giant molecular clouds are the largest inhabitants of galaxies, reaching ...
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... 12. (4 points) The luminosity of the Sun is 4 x 1033 erg/s, and its radius is 7 x 1010 cm. a) What is the Sun’s effective temperature? b) What is the flux of sunlight on the Earth? c) You ...
... 12. (4 points) The luminosity of the Sun is 4 x 1033 erg/s, and its radius is 7 x 1010 cm. a) What is the Sun’s effective temperature? b) What is the flux of sunlight on the Earth? c) You ...
Stellar Activity
... • Chromospheric activity in 800 southern G dwarfs (Soderblom) • log R’HK is a common measure for expressing the activity level • the Sun lies at B – V = 0.65 and log R’HK ≈ -4.95, in the middle of the “inactive” star classification band. ...
... • Chromospheric activity in 800 southern G dwarfs (Soderblom) • log R’HK is a common measure for expressing the activity level • the Sun lies at B – V = 0.65 and log R’HK ≈ -4.95, in the middle of the “inactive” star classification band. ...
Midterm Exam - 2 Set B Solution
... • Write your name, SB ID number and Lab section (A/B) on each blue book you use. • Solve any four of the five problems and start a new problem solution on a new page • You can use one A4 size formula sheet and use any non programmable calculator. Constants: c = 3 × 108 m/s, h = 6.626 × 10−34 J s, e ...
... • Write your name, SB ID number and Lab section (A/B) on each blue book you use. • Solve any four of the five problems and start a new problem solution on a new page • You can use one A4 size formula sheet and use any non programmable calculator. Constants: c = 3 × 108 m/s, h = 6.626 × 10−34 J s, e ...
R136a1
RMC 136a1 (usually abbreviated to R136a1) is a Wolf-Rayet star located at the center of R136, the central condensation of stars of the large NGC 2070 open cluster in the Tarantula Nebula. It lies at a distance of about 50 kiloparsecs (163,000 light-years) in the Large Magellanic Cloud. It has the highest mass and luminosity of any known star, at 265 M☉ and 8.7 million L☉, and also one of the hottest at over 50,000 K.