Multiple Choice, continued
... • The galaxy in which we live, the Milky Way, is a spiral galaxy in which the sun is one of hundreds of billions of stars. • Two irregular galaxies, the Large Magellanic Cloud and Small Magellanic Cloud, are our closest neighbors. • These three galaxies are called the Local Group. ...
... • The galaxy in which we live, the Milky Way, is a spiral galaxy in which the sun is one of hundreds of billions of stars. • Two irregular galaxies, the Large Magellanic Cloud and Small Magellanic Cloud, are our closest neighbors. • These three galaxies are called the Local Group. ...
Volume 2 (Issue 7), July 2013
... that quasars are among the most ancient objects known in the universe. The most distant quasars observed so far are over 10 billion light-years away. This means we are seeing them as they appeared 10 billion years ago. It is entirely possible that some or all of the quasars we see today may not even ...
... that quasars are among the most ancient objects known in the universe. The most distant quasars observed so far are over 10 billion light-years away. This means we are seeing them as they appeared 10 billion years ago. It is entirely possible that some or all of the quasars we see today may not even ...
Study Guide for the Comprehensive Final Exam
... State the contribution of binary stars to our knowledge of stellar masses and give the range of main sequence stellar masses. Describe the physical characteristics of a giant molecular cloud. Identify the source of heating (energy production) in protostars. Explain why more low-mass K & M main seque ...
... State the contribution of binary stars to our knowledge of stellar masses and give the range of main sequence stellar masses. Describe the physical characteristics of a giant molecular cloud. Identify the source of heating (energy production) in protostars. Explain why more low-mass K & M main seque ...
Clarice - Science A 2 Z
... • Antares means “the rival of Mars” it is the thirteenth brightest star in the sky. • Antares is slowly evaporating due to fierce winds that blow from it’s surface. • The Polynesians saw Scorpius as a simple fishhook. http://www.barransclass.com/astr1070/const/Yoneguchi/Scorpius.jpg ...
... • Antares means “the rival of Mars” it is the thirteenth brightest star in the sky. • Antares is slowly evaporating due to fierce winds that blow from it’s surface. • The Polynesians saw Scorpius as a simple fishhook. http://www.barransclass.com/astr1070/const/Yoneguchi/Scorpius.jpg ...
Stars
... We have been assuming that we see the binary system face on when imaging the orbit and edge-on when measuring the velocity. In general, the orbit is tilted relative to our line of sight. The tilt, or inclination i, will affect the observed orbit trajectory and the observed velocities. In general, on ...
... We have been assuming that we see the binary system face on when imaging the orbit and edge-on when measuring the velocity. In general, the orbit is tilted relative to our line of sight. The tilt, or inclination i, will affect the observed orbit trajectory and the observed velocities. In general, on ...
Document
... 2. Microlensing on isolated stellar mass BHs • There are several good candidates • But it is necessary to find the black hole ITSELF! 3. Exotic emission mechanisms • As all other exotics: interesting, but not very probable • If it works, then GLAST will show us isolated BHs 4. Runaway stars • A rare ...
... 2. Microlensing on isolated stellar mass BHs • There are several good candidates • But it is necessary to find the black hole ITSELF! 3. Exotic emission mechanisms • As all other exotics: interesting, but not very probable • If it works, then GLAST will show us isolated BHs 4. Runaway stars • A rare ...
Dark Matter in the Universe:
... Most (> 90%) of this mass is in the Dark Halo of the Galaxy, which extends out over 500,000 light-years from the center of the Galaxy -much further than the visible disk ...
... Most (> 90%) of this mass is in the Dark Halo of the Galaxy, which extends out over 500,000 light-years from the center of the Galaxy -much further than the visible disk ...
5 Understanding stars and star ClUsters
... fact, the rate of burning increases far in excess of the increase in mass; therefore large stars use up their fuel much quicker than small ones. As the star compresses from its original cloud it finally begins to shine forth, creating a solar wind, which eventually disperses the cloud from which it ...
... fact, the rate of burning increases far in excess of the increase in mass; therefore large stars use up their fuel much quicker than small ones. As the star compresses from its original cloud it finally begins to shine forth, creating a solar wind, which eventually disperses the cloud from which it ...
Feb 2017 - What`s Out Tonight?
... tens of thousands stars held together by their mutual gravity. All Galilean moons and cloud bands, easily visible at 50x. It is posof the globulars that can be seen in the sky are part of our Milky sible to see the moons with well-focused binoculars. Saturn is Way Galaxy, and there are about 200 of ...
... tens of thousands stars held together by their mutual gravity. All Galilean moons and cloud bands, easily visible at 50x. It is posof the globulars that can be seen in the sky are part of our Milky sible to see the moons with well-focused binoculars. Saturn is Way Galaxy, and there are about 200 of ...
distant stars nearby star parallax angle The principle of geometrical
... didn’t know the distances to these stars, we wouldn’t know that Betelgeuse is a red giant star, with a much greater intrinsic brightness than Vega (and much larger diameter). Nor would we know that many stars visible in the night sky are much like the Sun, but just much, much farther away so they ap ...
... didn’t know the distances to these stars, we wouldn’t know that Betelgeuse is a red giant star, with a much greater intrinsic brightness than Vega (and much larger diameter). Nor would we know that many stars visible in the night sky are much like the Sun, but just much, much farther away so they ap ...
Stellar Spectrum Characteristics and Black Body Radiation
... What this means is that most of the energy we see coming out is high intensity, whereas the frequencies that have been absorbed and then reemitted will be of considerable less intensity. This discrepancy of intensity is what shows itself as an absorption spectrum. ...
... What this means is that most of the energy we see coming out is high intensity, whereas the frequencies that have been absorbed and then reemitted will be of considerable less intensity. This discrepancy of intensity is what shows itself as an absorption spectrum. ...
Chapter 13: Neutron Stars and Black Holes - Otto
... • High temperature accretion disk in both cases • Relativistic outflow, perhaps in jets ...
... • High temperature accretion disk in both cases • Relativistic outflow, perhaps in jets ...
Answers to Final Exam – Study Guide
... 99. Our Sun is considered to be a ______yellow__________ star 100. The formula for acceleration is (final velocity – initial velocity) / time o 101. The metric unit for temperature is the Celsius or Kelvin 102. What color are the coldest stars red 103. The metric prefix milli means ...
... 99. Our Sun is considered to be a ______yellow__________ star 100. The formula for acceleration is (final velocity – initial velocity) / time o 101. The metric unit for temperature is the Celsius or Kelvin 102. What color are the coldest stars red 103. The metric prefix milli means ...
Spectrum, Red Shift, Blue Shift
... All of the light from stars and galaxies that reaches the earth is____________________ It means that ___________________________________________________________ ...
... All of the light from stars and galaxies that reaches the earth is____________________ It means that ___________________________________________________________ ...
TAP 702- 6: Binary stars - Teaching Advanced Physics
... In many binary stars, the two stars are not perfectly lined up when seen from Earth. This means that there will not be any dimming or brightening of the light, because the dimmer star will not block out the light from the brighter one. How might an astronomer tell, from the spectrum, that there are ...
... In many binary stars, the two stars are not perfectly lined up when seen from Earth. This means that there will not be any dimming or brightening of the light, because the dimmer star will not block out the light from the brighter one. How might an astronomer tell, from the spectrum, that there are ...
Yeatman-Liddell College Preparatory Middle School Winter
... become a red giant. The core will continue to burn helium, the other main fuel in a star. A red giant can swell to a thousand times its previous size, although its core is still dense and no larger than Earth. Our own Sun is expected to swell to only 30 times its present diameter. It will look very ...
... become a red giant. The core will continue to burn helium, the other main fuel in a star. A red giant can swell to a thousand times its previous size, although its core is still dense and no larger than Earth. Our own Sun is expected to swell to only 30 times its present diameter. It will look very ...
SAP_Paper1_FutureOfUniverse
... universe will not be completely dark. There will be on average 100 stars burning in the milky way at this point opposed to our current 100 billion. There will also be the occasion supernova created from collisions of stellar remnants. By 10^19 to 10^20 years 90-99% of brown dwarfs and stellar remnan ...
... universe will not be completely dark. There will be on average 100 stars burning in the milky way at this point opposed to our current 100 billion. There will also be the occasion supernova created from collisions of stellar remnants. By 10^19 to 10^20 years 90-99% of brown dwarfs and stellar remnan ...
Great Migrations & other natural history tales
... built of the same (`solar abundance') atomic matter that forms the Earth, subject to constant motion through vacuum, collision, and coalescence (accretion). Who invented the solar nebula: Kant & Laplace or Leucippus? ...
... built of the same (`solar abundance') atomic matter that forms the Earth, subject to constant motion through vacuum, collision, and coalescence (accretion). Who invented the solar nebula: Kant & Laplace or Leucippus? ...
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.