File
... one of the strongest meteor showers that occurs during the day, lasting from 22 May to 2 June. It is an ...
... one of the strongest meteor showers that occurs during the day, lasting from 22 May to 2 June. It is an ...
Lecture 11
... – Hot gas in accretion disks can emit X-rays – The accretion disk can dump material which may become hot and dense enough to under nuclear fusion. • What is a white dwarf supernova – White dwarf accretes gas from companion until it exceeds 1.4 solar masses – which undergoes collapse and destruct ...
... – Hot gas in accretion disks can emit X-rays – The accretion disk can dump material which may become hot and dense enough to under nuclear fusion. • What is a white dwarf supernova – White dwarf accretes gas from companion until it exceeds 1.4 solar masses – which undergoes collapse and destruct ...
Slide 1
... When a star dies, if the core has less mass than 1.4 times the sun, it will form a white dwarf. Gravity is trying to squeeze the core as small as it can get. It's stopped by the pressure of electrons trying to repel each other. This pressure counteracts gravity. Over billions of years, this hot core ...
... When a star dies, if the core has less mass than 1.4 times the sun, it will form a white dwarf. Gravity is trying to squeeze the core as small as it can get. It's stopped by the pressure of electrons trying to repel each other. This pressure counteracts gravity. Over billions of years, this hot core ...
printer-friendly version of benchmark
... (From http://www.angelfire.com/sc2/Trunko/starsh1.JPG) ...
... (From http://www.angelfire.com/sc2/Trunko/starsh1.JPG) ...
01 - University of Warwick
... the most comprehensive search for gas around 15 different ”This indicates that gas giant planets like Jupiter and Saturn sun-like stars, most with ages ranging from 3 million to 30 have already formed in these young solar system analogs, or they never will,” Meyer said. million years. Astronomers su ...
... the most comprehensive search for gas around 15 different ”This indicates that gas giant planets like Jupiter and Saturn sun-like stars, most with ages ranging from 3 million to 30 have already formed in these young solar system analogs, or they never will,” Meyer said. million years. Astronomers su ...
1 Do Massive Stars Trigger New Waves of Star Formation
... region with several massive stars lead to the formation of a smaller region that only contains a single massive star. This secondary region is thought to host several young stars on its boundaries and be the third generation of star formation in the region. Watson et al (2008) studied smaller region ...
... region with several massive stars lead to the formation of a smaller region that only contains a single massive star. This secondary region is thought to host several young stars on its boundaries and be the third generation of star formation in the region. Watson et al (2008) studied smaller region ...
updated
... century they appeared to be similar to the fuzzy telescopic images (at that time) of planets. Hence these objects were called Planetary Nebulae even though the objects themselves have nothing whatsoever to do with planets or planetary formation. A better terminology would be to call them Post Red G ...
... century they appeared to be similar to the fuzzy telescopic images (at that time) of planets. Hence these objects were called Planetary Nebulae even though the objects themselves have nothing whatsoever to do with planets or planetary formation. A better terminology would be to call them Post Red G ...
pptx
... organism on a planet. If so, then fi=1. But for 2.5 billion years, life on Earth did not evolve past single-celled organisms. Perhaps the development of complex (and intelligent) life is very rare. In that case, fi<<1. ...
... organism on a planet. If so, then fi=1. But for 2.5 billion years, life on Earth did not evolve past single-celled organisms. Perhaps the development of complex (and intelligent) life is very rare. In that case, fi<<1. ...
Hertzsprung Rusell Diagram KLT
... Stars that look to us as though they are near each other, may intact be very far away from each other. Distant but very bright stars look similar to close but dim stars. ...
... Stars that look to us as though they are near each other, may intact be very far away from each other. Distant but very bright stars look similar to close but dim stars. ...
mass loss of massive stars - of /proceedings
... Although short, the RSG phase strongly impacts on the neighbouring environment. In that phase, mass loss rates range from 10−7 to 10−4 M and the wind velocities are typically of 10 to 40 km s−1 . Hence, the wind density is about a thousand times larger than in the OB phase. Fig. 2 shows mass loss r ...
... Although short, the RSG phase strongly impacts on the neighbouring environment. In that phase, mass loss rates range from 10−7 to 10−4 M and the wind velocities are typically of 10 to 40 km s−1 . Hence, the wind density is about a thousand times larger than in the OB phase. Fig. 2 shows mass loss r ...
of universal gravitation and of
... THE EARTH-MOON TEST OF THE LAW OF GRAVITATION According to the well-known story, Sir Isaac Newton was sitting in his garden, reflecting upon the force that holds the Moon and planets in their orbits, when an apple fell from a nearby tree. ...
... THE EARTH-MOON TEST OF THE LAW OF GRAVITATION According to the well-known story, Sir Isaac Newton was sitting in his garden, reflecting upon the force that holds the Moon and planets in their orbits, when an apple fell from a nearby tree. ...
Star formation, feedback and the role of SNe II and SNe Ia in the
... originally thought to be very similar in their metallicity and star formation histories to the galactic globular clusters, but their star formation history is now known to be much more complex. ...
... originally thought to be very similar in their metallicity and star formation histories to the galactic globular clusters, but their star formation history is now known to be much more complex. ...
Tasks - ESA Science
... Observatories in Chile have presented ever deeper and more spectacular views of the Universe. However, Hubble and the ESO telescopes have not just provided stunning new images, they are also invaluable tools for astronomers. The telescopes have excellent spatial/angular resolution (image sharpness) ...
... Observatories in Chile have presented ever deeper and more spectacular views of the Universe. However, Hubble and the ESO telescopes have not just provided stunning new images, they are also invaluable tools for astronomers. The telescopes have excellent spatial/angular resolution (image sharpness) ...
Lab Activity on Variations in the Apparent Daily Path of
... 1. Twist the large white knob at the bottom of the model celestial sphere clockwise; this causes the Earth inside the Celestial Sphere to spin. Notice that the stars do not move, only the Earth does (the moon and the other planets would too--if they were incorporated into this model). 2. In order to ...
... 1. Twist the large white knob at the bottom of the model celestial sphere clockwise; this causes the Earth inside the Celestial Sphere to spin. Notice that the stars do not move, only the Earth does (the moon and the other planets would too--if they were incorporated into this model). 2. In order to ...
Astronomy Activities/Demonstrations
... amount of force that it rebounds. As the core contracts, all the outer atmospheric layers are also contracting and following the core. They are less dense and take a little longer to contract than the core. When the core (basketball) rebounds, the atmospheric layers (tennis ball) are still in-fallin ...
... amount of force that it rebounds. As the core contracts, all the outer atmospheric layers are also contracting and following the core. They are less dense and take a little longer to contract than the core. When the core (basketball) rebounds, the atmospheric layers (tennis ball) are still in-fallin ...
Chapter8
... The Solar Constant The energy we receive from the sun is essential for all life on Earth. The amount of energy we receive from the sun can be expressed as the Solar Constant: ...
... The Solar Constant The energy we receive from the sun is essential for all life on Earth. The amount of energy we receive from the sun can be expressed as the Solar Constant: ...
100 Binocular Deep Sky Objects
... Besides the sheer beauty of the naked eye Milky Way, I think the best dark sky object in this area is NGC 7000, the North America nebula. In a mag 6.7 sky, this outstanding deep sky feature stood out in 15x70s like I have never seen it before in any optics. The entire Florida / Gulf of Mexico / Cent ...
... Besides the sheer beauty of the naked eye Milky Way, I think the best dark sky object in this area is NGC 7000, the North America nebula. In a mag 6.7 sky, this outstanding deep sky feature stood out in 15x70s like I have never seen it before in any optics. The entire Florida / Gulf of Mexico / Cent ...
Astronomy 07 Life in the Universe Final Exam Test Bank Homework
... 13. A solar system model with the Earth at the center A) is called geocentric B) is called heliocentric C) is an accurate model of our solar system D) obeys the Copernican Principle E) has long been proven correct 14. A solar system model with the Sun at the center A) is called geocentric B) is call ...
... 13. A solar system model with the Earth at the center A) is called geocentric B) is called heliocentric C) is an accurate model of our solar system D) obeys the Copernican Principle E) has long been proven correct 14. A solar system model with the Sun at the center A) is called geocentric B) is call ...
life cycles of stars
... Helium fusion does not begin right away because it requires higher temperatures than hydrogen fusion—larger ...
... Helium fusion does not begin right away because it requires higher temperatures than hydrogen fusion—larger ...
4550-15Lecture33
... their surface temperature. On a plot of luminosity versus wavelength of their principal emissions (color), called, most stars fall along an array defining the “main sequence”. Since wavelength is inversely related to the fourth power of temperature, this correlation means that hot stars give off mor ...
... their surface temperature. On a plot of luminosity versus wavelength of their principal emissions (color), called, most stars fall along an array defining the “main sequence”. Since wavelength is inversely related to the fourth power of temperature, this correlation means that hot stars give off mor ...
Homework
... away from our galaxy, and the more distant galaxies are moving away faster. That means that all of the galaxies in the universe (or at least the materials from which they were formed) were all together around 14 billions years ago and they have been moving apart ever since. That is a scientific fact ...
... away from our galaxy, and the more distant galaxies are moving away faster. That means that all of the galaxies in the universe (or at least the materials from which they were formed) were all together around 14 billions years ago and they have been moving apart ever since. That is a scientific fact ...
Earth-like worlds on eccentric orbits - Physics
... is now 65, and the list of detections continues to outpace theoretical explanation. The smallest object that has been discovered by radial-velocity surveys thus far has a minimum mass m sin i l 0n17MJ, or " 0n6 times the mass of Saturn, and the range of orbital radii, or semi-major axes, is 0n038 a ...
... is now 65, and the list of detections continues to outpace theoretical explanation. The smallest object that has been discovered by radial-velocity surveys thus far has a minimum mass m sin i l 0n17MJ, or " 0n6 times the mass of Saturn, and the range of orbital radii, or semi-major axes, is 0n038 a ...
Supernovae March 23 − Supernova 1987A
... Sirius A, a main-sequence star Sirius B, an earth-sized white dwarf ...
... Sirius A, a main-sequence star Sirius B, an earth-sized white dwarf ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.