Description
... principles and laws in physics and astronomy, scientific methods and instruments used in the exploration of the origin and structure of our universe, star formation and evolution, solar system formation and planetary motion, as well as the cosmological principles for predicting the future of our uni ...
... principles and laws in physics and astronomy, scientific methods and instruments used in the exploration of the origin and structure of our universe, star formation and evolution, solar system formation and planetary motion, as well as the cosmological principles for predicting the future of our uni ...
Hot-plate model of stars Test 2 & grades • Public viewing sessions
... Goal is to discover the model for • flux, the amount of energy we on Earth receive per second per area of telescope. ...
... Goal is to discover the model for • flux, the amount of energy we on Earth receive per second per area of telescope. ...
6 Physics 111 HW16 - University of St. Thomas
... AP03. Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. The density of a neutron star is roughly 1014 times as great as that of ordinary solid matter. Suppose we represent the star as a uniform, solid, rigid sphere, both ...
... AP03. Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. The density of a neutron star is roughly 1014 times as great as that of ordinary solid matter. Suppose we represent the star as a uniform, solid, rigid sphere, both ...
Local group
... Andromeda), a smaller spiral M33 and lots of (>35 galaxies), most of which are dwarf ellipticals and irregulars with low mass; most are satellites of MW, M31 or M33 • The gravitational interaction between these systems is complex but the local group is apparently bound. • Major advantages – close an ...
... Andromeda), a smaller spiral M33 and lots of (>35 galaxies), most of which are dwarf ellipticals and irregulars with low mass; most are satellites of MW, M31 or M33 • The gravitational interaction between these systems is complex but the local group is apparently bound. • Major advantages – close an ...
The Milky Way
... Some neutron stars have magnetic fields ~ 1000 times stronger even than normal neutron stars. These care called Magnetars. ...
... Some neutron stars have magnetic fields ~ 1000 times stronger even than normal neutron stars. These care called Magnetars. ...
1. Star A has a distance of 3 parsecs. What is its parallax angle? 1a
... If the Sun’s central temperature increased a bit, would more or less energy be created there? Temperature increases - more energy generated in core, more pressure created which halts the contraction. If the Sun’s central temperature were to increase a little bit, why would it not be cause for worldw ...
... If the Sun’s central temperature increased a bit, would more or less energy be created there? Temperature increases - more energy generated in core, more pressure created which halts the contraction. If the Sun’s central temperature were to increase a little bit, why would it not be cause for worldw ...
Ch. 26.5: The Expanding Universe
... Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration du ...
... Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration du ...
Stars and Light
... cooler brown dwarf stars. These stars have such low masses, < 0.08 M⊙, that no fusion occurs inside. Spectral class M include the most massive brown dwarfs. • Need extra spectral types: L, T, Y • L is hottest, Y is coolest (down to ~300K) • Note Y brown dwarfs were discovered only this year and are ...
... cooler brown dwarf stars. These stars have such low masses, < 0.08 M⊙, that no fusion occurs inside. Spectral class M include the most massive brown dwarfs. • Need extra spectral types: L, T, Y • L is hottest, Y is coolest (down to ~300K) • Note Y brown dwarfs were discovered only this year and are ...
Ch. 26.5 - (www.ramsey.k12.nj.us).
... Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration du ...
... Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration du ...
Grand Tour Worksheet - School District of La Crosse
... 12. Are solid surfaces common throughout the universe? 13. Why didn’t Jupiter look too complicated from earth? ...
... 12. Are solid surfaces common throughout the universe? 13. Why didn’t Jupiter look too complicated from earth? ...
The Night Sky
... The magnitude system that astronomers use is based on the way our eyes scale the intensity of light, which is not linear but logarithmic. What do you think would be the advantage of having eyes which scale intensity in such a fashion? ...
... The magnitude system that astronomers use is based on the way our eyes scale the intensity of light, which is not linear but logarithmic. What do you think would be the advantage of having eyes which scale intensity in such a fashion? ...
E:\2012-2013\SSU\PHS 207spring 2013\3rd test 4
... 1. Why are Cepheid variable stars important in our study of the Milky Way galaxy? By monitoring a Cepheid star its distance from us can be calculated. Since we assume that nearly all the stars in a cluster are nearly the same age, we can determine the cluster’s age and distance ad some range of the ...
... 1. Why are Cepheid variable stars important in our study of the Milky Way galaxy? By monitoring a Cepheid star its distance from us can be calculated. Since we assume that nearly all the stars in a cluster are nearly the same age, we can determine the cluster’s age and distance ad some range of the ...
supernova remnants: a link between massive stars and the
... galaxy like the Milky Way should have a SN outburst every 30 to 50 yr on average (Cappellaro et al. 1999). Therefore, at least ∼40 stellar explosions are expected to occur in the last twenty Centuries (of which we are aware of 7 “more or less safe” SN events, Stephenson & Green 2002). Also, taking i ...
... galaxy like the Milky Way should have a SN outburst every 30 to 50 yr on average (Cappellaro et al. 1999). Therefore, at least ∼40 stellar explosions are expected to occur in the last twenty Centuries (of which we are aware of 7 “more or less safe” SN events, Stephenson & Green 2002). Also, taking i ...
The Solar Nebula - Lincoln-Sudbury Regional High School
... Giant molecular clouds are extremely cold – only a few degrees warmer than the near-zero of space – and rotate very slowly. So at some stage gravity actually wins and the giant molecular cloud begins to collapse under its own gravity. The giant molecular cloud fragments, forming much smaller dense c ...
... Giant molecular clouds are extremely cold – only a few degrees warmer than the near-zero of space – and rotate very slowly. So at some stage gravity actually wins and the giant molecular cloud begins to collapse under its own gravity. The giant molecular cloud fragments, forming much smaller dense c ...
What is light?
... You observe a very large and very hot star in the constellation Orion. On the same night, you observe another star in Orion that is much smaller but has the same temperature. Which star is more luminous? a) the larger star b) the smaller star c) They have the same temperature. d) There is insuffici ...
... You observe a very large and very hot star in the constellation Orion. On the same night, you observe another star in Orion that is much smaller but has the same temperature. Which star is more luminous? a) the larger star b) the smaller star c) They have the same temperature. d) There is insuffici ...
A star by any other name - Baruch Sterman
... starting to wobble in a small circle. This motion is much slower, maybe a few seconds for each full circle. The earth exhibits this type motion as well, which was first explained by Isaac Newton. Just like a dreidel which wobbles as it spins, the axis of the earth’s rotation slowly wobbles as well, ...
... starting to wobble in a small circle. This motion is much slower, maybe a few seconds for each full circle. The earth exhibits this type motion as well, which was first explained by Isaac Newton. Just like a dreidel which wobbles as it spins, the axis of the earth’s rotation slowly wobbles as well, ...
X-ray binaries
... The latest large catalogue (Li et al. arXiv: 0707.0544) includes 187 galactic and Magellanic Clouds LMXBs with NSs and BHs as accreting components. Donors can be WDs, or normal low-mass stars (main sequence or sub-giants). Many sources are found in globular clusters. Also there are more and more LMX ...
... The latest large catalogue (Li et al. arXiv: 0707.0544) includes 187 galactic and Magellanic Clouds LMXBs with NSs and BHs as accreting components. Donors can be WDs, or normal low-mass stars (main sequence or sub-giants). Many sources are found in globular clusters. Also there are more and more LMX ...
Final Study Guide
... 29. Discuss the apparent magnitudes and luminosity of a star. How can knowing both of them give us a star’s distance? 30. Describe characteristics of the main sequence stars. 31. Describe the stages in the formation of a new star. 32. Describe the nature and properties of a neutron star 33. What is ...
... 29. Discuss the apparent magnitudes and luminosity of a star. How can knowing both of them give us a star’s distance? 30. Describe characteristics of the main sequence stars. 31. Describe the stages in the formation of a new star. 32. Describe the nature and properties of a neutron star 33. What is ...
Week 3: Kepler`s Laws, Light and Matter
... types of spectra we can learn from. Emission spectrum is produced when we observe a low density warm gas cloud. In this warm gas collision are frequent to move electrons to higher energy levels and the electrons emit photons when they come down. Absorption spectrum is produced when we observe a cold ...
... types of spectra we can learn from. Emission spectrum is produced when we observe a low density warm gas cloud. In this warm gas collision are frequent to move electrons to higher energy levels and the electrons emit photons when they come down. Absorption spectrum is produced when we observe a cold ...
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.