Supernovae - Michigan State University
... • core shrinks until degeneracy pressure sets in and halts collapse star is HOT (gravitational energy !) star is small WD M-R relation Hamada-Salpeter Ap.J. 134 (1961) 683 ...
... • core shrinks until degeneracy pressure sets in and halts collapse star is HOT (gravitational energy !) star is small WD M-R relation Hamada-Salpeter Ap.J. 134 (1961) 683 ...
starevolution - Global Change Program
... masses of "Main Sequence" stars range from one-tenth of the Sun's mass at the lowest part, to some 50 or 100 solar masses at the upper end. Heavier stars burn up their fuel more quickly than the smaller stars. Happily for us, the Sun has been on the main sequence for around 4.5 billion years and wil ...
... masses of "Main Sequence" stars range from one-tenth of the Sun's mass at the lowest part, to some 50 or 100 solar masses at the upper end. Heavier stars burn up their fuel more quickly than the smaller stars. Happily for us, the Sun has been on the main sequence for around 4.5 billion years and wil ...
Powerpoint - Astronomy at Swarthmore College
... One important aspect of this project was creating a way to visualize the results of these simulations. Below are color contour plots of temperature, material density, speed, and a representation of the magnetic field, all of which are data that are included in the output files of the simulations. In ...
... One important aspect of this project was creating a way to visualize the results of these simulations. Below are color contour plots of temperature, material density, speed, and a representation of the magnetic field, all of which are data that are included in the output files of the simulations. In ...
Stars and Galaxies Misconceptions
... are from other galaxies. All the stars we see with our “naked eyes” are in the Milky Way Galaxy –we cannot see individual stars in other galaxies without powerful telescopes. ...
... are from other galaxies. All the stars we see with our “naked eyes” are in the Milky Way Galaxy –we cannot see individual stars in other galaxies without powerful telescopes. ...
Observing the Solar System
... volume. Gravity then pulls some of the dust and gas together causing a contracting cloud. • A star is born when the contracting gas and dust become so hot that nuclear fusion starts. ...
... volume. Gravity then pulls some of the dust and gas together causing a contracting cloud. • A star is born when the contracting gas and dust become so hot that nuclear fusion starts. ...
The Life Cycle of Stars Webquest
... Date _____________ Continue to read on to the section “The Circle of Life” on the same webpage http://www.seasky.org/cosmic/sky7a01.html and answer the following questions: 1. Stars begin their lives as clouds of dust and gas called. 2. What is a protostar? ...
... Date _____________ Continue to read on to the section “The Circle of Life” on the same webpage http://www.seasky.org/cosmic/sky7a01.html and answer the following questions: 1. Stars begin their lives as clouds of dust and gas called. 2. What is a protostar? ...
QUIZ 1 - AY5-S13 . . . . . . . . . . . . . . . . . YOUR NAME
... T The two gases would show different emission-line spectra F Both would show continuous spectra, with the helium-gas spectrum peaking at a shorter wavelength 6. What color would a yellow banana slug appear if illuminated with white light? Yellow ...
... T The two gases would show different emission-line spectra F Both would show continuous spectra, with the helium-gas spectrum peaking at a shorter wavelength 6. What color would a yellow banana slug appear if illuminated with white light? Yellow ...
“Do you have a good caption for the pop-eyed, thin
... Centauri, famous for being the closest visible star, 4.3 light years away. The light left that star 4.3 years ago. At 186 thousand miles per second, the light traveled over 25 trillion miles from Alpha Centauri to reach Earth. Alpha Centauri means this star is the brightest star in the constellation ...
... Centauri, famous for being the closest visible star, 4.3 light years away. The light left that star 4.3 years ago. At 186 thousand miles per second, the light traveled over 25 trillion miles from Alpha Centauri to reach Earth. Alpha Centauri means this star is the brightest star in the constellation ...
stars
... huge explosion. • This huge explosion was known as The Big Bang. • Scientist believe that this huge explosion gave birth to the stars and planets ...
... huge explosion. • This huge explosion was known as The Big Bang. • Scientist believe that this huge explosion gave birth to the stars and planets ...
The Observed Properties of Stars
... A Temperature Sequence Higher temperatures Î More energetic collisions Î • electrons in higher levels on average. • atoms in higher ionization states on average. ...
... A Temperature Sequence Higher temperatures Î More energetic collisions Î • electrons in higher levels on average. • atoms in higher ionization states on average. ...
powerpoint - Physics @ IUPUI
... accrete matter onto a few km ball of mostly neutrons? • Well, at first the Hydrogen falls way down onto the surface. • This produces energy that helps to power the constant emission of X-rays by the neutron star. • Then, the H is fused into He and crushed onto the surface of the neutron star. • Soon ...
... accrete matter onto a few km ball of mostly neutrons? • Well, at first the Hydrogen falls way down onto the surface. • This produces energy that helps to power the constant emission of X-rays by the neutron star. • Then, the H is fused into He and crushed onto the surface of the neutron star. • Soon ...
Astronomy
... The mass of a star determines how quickly fusion will occur and therefore how long the star will “live”. ...
... The mass of a star determines how quickly fusion will occur and therefore how long the star will “live”. ...
The Milky Way at Different Wavelengths
... Column density of atomic hydrogen (that is the projected 2-dimentional density), derived on the assumption of optically thin emission, from radio surveys of the 21-cm spectral line of hydrogen. On a large scale the 21-cm emission traces the "warm" interstellar medium, which is organized into diffuse ...
... Column density of atomic hydrogen (that is the projected 2-dimentional density), derived on the assumption of optically thin emission, from radio surveys of the 21-cm spectral line of hydrogen. On a large scale the 21-cm emission traces the "warm" interstellar medium, which is organized into diffuse ...
Stellar Evolution
... luminous than the Sun but is only 3,500K on the surface. It’s radius is 1,000 times that of the Sun. ...
... luminous than the Sun but is only 3,500K on the surface. It’s radius is 1,000 times that of the Sun. ...
Animated Planets PowerPoint Presentation
... Professor Lutz is exploring the physical characteristics of planetary nebulae, their central stars and how planetary nebulae fit into the patterns of stellar evolution. She also analyzes the spectra of symbiotic stars (binaries containing an evolved hot star and a cool star) to determine their chem ...
... Professor Lutz is exploring the physical characteristics of planetary nebulae, their central stars and how planetary nebulae fit into the patterns of stellar evolution. She also analyzes the spectra of symbiotic stars (binaries containing an evolved hot star and a cool star) to determine their chem ...
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.