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Stellar Evolution
Stellar Evolution

Compact Objects
Compact Objects

The Life of a Star
The Life of a Star

... it cools down further, the star becomes a black dwarf. Now, the star is finished with its life cycle. High-mass stars explode after their red giant stage. If the star is massive enough, it will eventually become a black hole. Other high-mass red giants may become neutron stars. A neutron star is usu ...
astronomy - Mr. Barnard
astronomy - Mr. Barnard

Astronomy Campus Assessment
Astronomy Campus Assessment

... Scientists measure the movement of distant galaxies to learn more about the origin of the universe. You researched scientific data that showed that light from a distant galaxy is red-shifted. How would you evaluate the data? A. It indicates that the expansion of the universe has stopped, and so it d ...
Photo Album - Texas A&M University
Photo Album - Texas A&M University

... change in the electric field produces an electromagnetic wave, which is easily detected. In much the same way, an accelerated mass should also produce gravitational waves. Gravitational waves carry energy and momentum, travel at the speed of light, and are characterized by frequency and wavelength. ...
Small images
Small images

Theoretical Examination
Theoretical Examination

Life Cycles of Stars
Life Cycles of Stars

... The End of the Line for Massive Stars • Massive stars burn a succession of elements. • Iron is the most stable element and cannot be fused further. ...
SAMPLE THIRD MIDTERM
SAMPLE THIRD MIDTERM

Constellations 1
Constellations 1

... On a star chart, lines often connect the stars that might make up a constellation. Different star charts must be used at different times of the year and in different places on Earth. Many stars visible from the Southern hemisphere cannot be seen from the Northern hemisphere. ...
Constellations 1
Constellations 1

... On a star chart, lines often connect the stars that might make up a constellation. Different star charts must be used at different times of the year and in different places on Earth. Many stars visible from the Southern hemisphere cannot be seen from the Northern hemisphere. ...
constellations[1]
constellations[1]

... On a star chart, lines often connect the stars that might make up a constellation. Different star charts must be used at different times of the year and in different places on Earth. Many stars visible from the Southern hemisphere cannot be seen from the Northern hemisphere. ...
Section 25.1 Properties of Stars
Section 25.1 Properties of Stars

... Binary Stars and Stellar Mass  A binary star is one of two stars revolving around a common center of mass under their mutual gravitational attraction.  Binary stars are used to determine the star property most difficult to calculate—its mass. Common Center of Mass ...
Picture Match Words Valence Nebula Supernova Pulsar Attract
Picture Match Words Valence Nebula Supernova Pulsar Attract

Integrative Studies 410 Our Place in the Universe
Integrative Studies 410 Our Place in the Universe

... •Hypothesis: Many stars are being born from a interstellar gas cloud at the same time •Evidence: We see “associations” of stars of same age  Open Clusters ...
Light as a Wave (1) Distances to Stars
Light as a Wave (1) Distances to Stars

The Life of a Star
The Life of a Star

... a red super giant. After this stage things become more violent. Instead of gentle billowing gas shells being ejected into space (a planetary nebula) the red super giant tears itself apart in an unbelievably violent explosion called a supernova. As the radiation and debris clear, a neutron star emerg ...
Homework #3
Homework #3

Powerpoint - Astronomy at Swarthmore College
Powerpoint - Astronomy at Swarthmore College

... simulations. Many of these synthesized observables can be compared to actual data. Below are examples of a few of these synthesized observables that we ...
MASS – LUMINOSITY RELATION FOR MASSIVE STARS
MASS – LUMINOSITY RELATION FOR MASSIVE STARS

The Stellar Graveyard
The Stellar Graveyard

... masses will end up becoming white dwarfs because there is so much mass loss during the various phases of stellar evolution following hydrogen core exhaustion. Measuring the current mass of a white dwarf, therefore, does not indicate what its initial mass was. A 0.5 solar mass white dwarf could have ...
Sample Final - IUPUI Physics
Sample Final - IUPUI Physics

Astronomy Assignment #1
Astronomy Assignment #1

... Massive stars last for such a short time as main sequence stars because the higher central pressures in those stars drive faster fusion rates and created higher luminosities. The higher luminosities “burn” mass faster and the star will then “burn” through its core reserves of hydrogen faster. Low ma ...
From the Everett and Seattle Astronomical Societies, this is IT
From the Everett and Seattle Astronomical Societies, this is IT

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Dyson sphere

A Dyson sphere is a hypothetical megastructure that completely encompasses a star and hence captures most or all of its power output. It was first described by Olaf Stapledon in his science fiction novel, ""Star Maker"". The concept was later popularly adopted by Freeman Dyson. Dyson speculated that such structures would be the logical consequence of the long-term survival and escalating energy needs of a technological civilization, and proposed that searching for evidence of the existence of such structures might lead to the detection of advanced intelligent extraterrestrial life. Different types of Dyson spheres correlate with information on the Kardashev scale.Since then, other variant designs involving building an artificial structure or series of structures to encompass a star have been proposed in exploratory engineering or described in science fiction under the name ""Dyson sphere"". These later proposals have not been limited to solar-power stations. Many involve habitation or industrial elements. Most fictional depictions describe a solid shell of matter enclosing a star, which is considered the least plausible variant of the idea (see below). In May 2013, at the Starship Century Symposium in San Diego, Dyson repeated his comments that he wished the concept had not been named after him.
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