Stars - cayugascience
... explosion is directed not only outward, but also inward. This force causes the atoms in the star’s core to compress and collapse. When an atom collapses, it forms neutrons, particles that are at the centre of most atoms already. When the star’s core becomes little more than a ball of neutrons only a ...
... explosion is directed not only outward, but also inward. This force causes the atoms in the star’s core to compress and collapse. When an atom collapses, it forms neutrons, particles that are at the centre of most atoms already. When the star’s core becomes little more than a ball of neutrons only a ...
Measuring Distances
... also allow us to determine the Universe’s age. While distance is so critical in astronomy, it is also one of the most difficult things to measure. Fortunately, Greek astronomers imagined a method 2000 years ago that is still in use today. ...
... also allow us to determine the Universe’s age. While distance is so critical in astronomy, it is also one of the most difficult things to measure. Fortunately, Greek astronomers imagined a method 2000 years ago that is still in use today. ...
SS_L1
... tK ~ Ekin / L Ekin is related to Egrav by the Virial theorem Ekin = –(1/2) Egrav. But Egrav = –q GM2 / R, where q ~ unity, so that ...
... tK ~ Ekin / L Ekin is related to Egrav by the Virial theorem Ekin = –(1/2) Egrav. But Egrav = –q GM2 / R, where q ~ unity, so that ...
Slide 1
... More Precisely 17-3: Measuring Stellar Masses in Binary Stars In order to measure stellar masses in a binary star, the period and semimajor axis of the orbit must be measured. Once this is done, Kepler’s third law gives the sum of the masses of the two stars. Then the relative speeds of the two sta ...
... More Precisely 17-3: Measuring Stellar Masses in Binary Stars In order to measure stellar masses in a binary star, the period and semimajor axis of the orbit must be measured. Once this is done, Kepler’s third law gives the sum of the masses of the two stars. Then the relative speeds of the two sta ...
Merak
... from the Chinese. To the Greeks, this star was named Helike, one of their names to the whole constellation, Ursa Major. According to Burnham, Merak is part of a star cluster including at least 16 other stars from the Ursa Major area of the sky. ...
... from the Chinese. To the Greeks, this star was named Helike, one of their names to the whole constellation, Ursa Major. According to Burnham, Merak is part of a star cluster including at least 16 other stars from the Ursa Major area of the sky. ...
Jeopardy
... True or False: Even the smallest amount of dust makes it hard for astronomers see light from distant stars? ...
... True or False: Even the smallest amount of dust makes it hard for astronomers see light from distant stars? ...
Stellar Structure and Evolution II
... • Fusion progresses no further in a low-mass star because the core temperature never grows hot enough for fusion of heavier elements (some He fuses to C to make oxygen) • Degeneracy pressure supports the white dwarf ...
... • Fusion progresses no further in a low-mass star because the core temperature never grows hot enough for fusion of heavier elements (some He fuses to C to make oxygen) • Degeneracy pressure supports the white dwarf ...
Answers to Coursebook questions – Chapter E3
... Star B has a larger parallax, so it is closer. Hence it appears brighter. ...
... Star B has a larger parallax, so it is closer. Hence it appears brighter. ...
Your Star: _____________________ d = 1 / p
... will migrate into the evening sky towards the end of the semester. Castor (in the constellation Gemini) is a six-star system; one of its fainter members is included in the table below. ...
... will migrate into the evening sky towards the end of the semester. Castor (in the constellation Gemini) is a six-star system; one of its fainter members is included in the table below. ...
RS Oph
... recurrent novae (Nr). These stars are novae where more than one outburst has been observed and appear to be intermediate in class between the classical novae (single major outburst) and dwarf novae (frequent minor outbursts). RS Oph is an interacting binary star system with a particularly long orbit ...
... recurrent novae (Nr). These stars are novae where more than one outburst has been observed and appear to be intermediate in class between the classical novae (single major outburst) and dwarf novae (frequent minor outbursts). RS Oph is an interacting binary star system with a particularly long orbit ...
Teachers` Manual - Amundsen High School
... Some evidence that the 4 big outer planets may have grown directly from "lumps" in the solar nebula. Also evidence that orbital position of outer planets may have drifted Some planetesimals survive: Captured by planets - form moons. Others become asteroids and comets Smaller bodies bombard p ...
... Some evidence that the 4 big outer planets may have grown directly from "lumps" in the solar nebula. Also evidence that orbital position of outer planets may have drifted Some planetesimals survive: Captured by planets - form moons. Others become asteroids and comets Smaller bodies bombard p ...
Starspots (AIP – Klaus G
... Magnetic fields likely play an important role in almost any astrophysical target, from the early Universe to the Sun, Earth, and its environment. While numerical 3-D MHD simulations became more and more sophisticated in the previous years, magnetic-field observations are still extremely rare (except ...
... Magnetic fields likely play an important role in almost any astrophysical target, from the early Universe to the Sun, Earth, and its environment. While numerical 3-D MHD simulations became more and more sophisticated in the previous years, magnetic-field observations are still extremely rare (except ...
Agenda - Relativity Group
... – two stars in a binary system can be close enough to transfer mass from one to the other – gaining or losing mass will change the life path of a star ...
... – two stars in a binary system can be close enough to transfer mass from one to the other – gaining or losing mass will change the life path of a star ...
