astrocoursespring2012lec5-1-1
... While M65 is almost edge-on in appearance, M66 is angles so that we see more of its face, including one spiral arm that hangs more limply tha the other, as if the galaxy had suffered some cosmic fall that injured its shoulder – David Levy, p. 193 http://www.asod.info/?p=1699 (image asod – Dale Holt ...
... While M65 is almost edge-on in appearance, M66 is angles so that we see more of its face, including one spiral arm that hangs more limply tha the other, as if the galaxy had suffered some cosmic fall that injured its shoulder – David Levy, p. 193 http://www.asod.info/?p=1699 (image asod – Dale Holt ...
11 Stellar Remnants - Journigan-wiki
... The Type I Supernova The nova process can repeat itself over and over again given that the dwarf does not accumulate too much material. If enough gas gathers to push the dwarf over the Chandrasekhar Limit, the star will collapse unto a Type I supernova. This rapid collapse will eventually cause the ...
... The Type I Supernova The nova process can repeat itself over and over again given that the dwarf does not accumulate too much material. If enough gas gathers to push the dwarf over the Chandrasekhar Limit, the star will collapse unto a Type I supernova. This rapid collapse will eventually cause the ...
NIE10x301Sponsor Thank You (Page 1)
... M31 to be a smooth, flat oval of light that appears to be eight times wider than the Full Moon (which appears to be ? degree wide)! In fact, the Andromeda Galaxy was first noted by the ancient Persian astronomer Al Sufi in 905 A.D., well before the telescope was invented. M31 is the nearest large ga ...
... M31 to be a smooth, flat oval of light that appears to be eight times wider than the Full Moon (which appears to be ? degree wide)! In fact, the Andromeda Galaxy was first noted by the ancient Persian astronomer Al Sufi in 905 A.D., well before the telescope was invented. M31 is the nearest large ga ...
Slide 1
... • A. It is a cloud-like halo that surrounds the disks of spiral galaxies • B. It was a term used historically to refer to any galaxy • C. It is a cloud of hydrogen gas that we detect by looking at light from quasars • D. It is a cloud of matter that contracts to become a galaxy ...
... • A. It is a cloud-like halo that surrounds the disks of spiral galaxies • B. It was a term used historically to refer to any galaxy • C. It is a cloud of hydrogen gas that we detect by looking at light from quasars • D. It is a cloud of matter that contracts to become a galaxy ...
Astronomy (C) - North Carolina Science Olympiad
... thermonuclear event Briefly outshines entire host galaxy (i.e. 1010 times brighter than Sun) Uniform peak magnitude ...
... thermonuclear event Briefly outshines entire host galaxy (i.e. 1010 times brighter than Sun) Uniform peak magnitude ...
Far Ultraviolet Spectroscopic Explorer
... Search data set for interesting individual objects that represent rare classes of objects. ...
... Search data set for interesting individual objects that represent rare classes of objects. ...
File - 5th Grade Science Almost done!!!!!!!!!
... • The first thing the students do when they enter the room is write down the homework (see next slide) in stone-silence. • After about 20 to 30 seconds of silence I tell the students “Please begin the warm up.” • Please go through the ppt with the students. Students will have to write items in blue ...
... • The first thing the students do when they enter the room is write down the homework (see next slide) in stone-silence. • After about 20 to 30 seconds of silence I tell the students “Please begin the warm up.” • Please go through the ppt with the students. Students will have to write items in blue ...
2. A giant hand took one of the planets discovered
... 2. A giant hand took one of the planets discovered around other stars and put it in the solar system at the same distance from the sun as from its star. The mass of the planet is approximately that of Jupiter and the orbit is approximately that of Earth. These are the “hot Jupiters”, as big as Jupit ...
... 2. A giant hand took one of the planets discovered around other stars and put it in the solar system at the same distance from the sun as from its star. The mass of the planet is approximately that of Jupiter and the orbit is approximately that of Earth. These are the “hot Jupiters”, as big as Jupit ...
Distance Ladder
... •Since they all are at 1.4 solar masses, they should always explode the same way ...
... •Since they all are at 1.4 solar masses, they should always explode the same way ...
lecture25
... Stars form from dense gas in molecular clouds Stars age and then give up their outer layers (via solar wind, planetary nebula, or supernova) The ejected gas eventually finds its way back into an overly dense region and become part of the next generation of stars. This process is repeated as long as ...
... Stars form from dense gas in molecular clouds Stars age and then give up their outer layers (via solar wind, planetary nebula, or supernova) The ejected gas eventually finds its way back into an overly dense region and become part of the next generation of stars. This process is repeated as long as ...
Stellar Evolution
... 40. What happens to this material from the supernova ? Reading Packet 5.16 41. What are Neutron stars ? ...
... 40. What happens to this material from the supernova ? Reading Packet 5.16 41. What are Neutron stars ? ...
Facilitator`s Guide
... People young and old have always been fascinated and awed by imagining how large and how old the Universe is and how far away the stars and the galaxies are from us. Today, many simply accept these huge numbers they hear as fact, without wondering how they are ascertained. In a typical introductory ...
... People young and old have always been fascinated and awed by imagining how large and how old the Universe is and how far away the stars and the galaxies are from us. Today, many simply accept these huge numbers they hear as fact, without wondering how they are ascertained. In a typical introductory ...
Far Ultraviolet Spectroscopic Explorer
... Individual objects show a variety of characteristics that do not always track the “standard model.” Collectively, SNRs can affect star formation and galactic evolution ...
... Individual objects show a variety of characteristics that do not always track the “standard model.” Collectively, SNRs can affect star formation and galactic evolution ...
Astrophysical explosions: from solar flares to cosmic gamma
... away and the viscous transport of mass is slow. In this state, the disc cannot transport matter through the disc and onto the white dwarf at the rate mass is added to the disc. The disc thus accumulates mass in its outer regions. Eventually, as the density increases, the disc becomes opaque (optical ...
... away and the viscous transport of mass is slow. In this state, the disc cannot transport matter through the disc and onto the white dwarf at the rate mass is added to the disc. The disc thus accumulates mass in its outer regions. Eventually, as the density increases, the disc becomes opaque (optical ...
B - Department of Physics and Astronomy
... D. friction between the stellar surface and the surrounding nebular material. 23. How does the diameter of a black hole (size of the event horizon) depend on the mass inside the black hole? A. the greater the mass, the smaller the diameter B. the greater the mass, the greater the diameter up to the ...
... D. friction between the stellar surface and the surrounding nebular material. 23. How does the diameter of a black hole (size of the event horizon) depend on the mass inside the black hole? A. the greater the mass, the smaller the diameter B. the greater the mass, the greater the diameter up to the ...
5. cosmic distance ladder ii: standard candles
... dwarf, increasing its mass until it begins to collapse under its own weight. As the white dwarf collapses, it heats up, until it reaches 6 × 108 K, the temperature at which carbon fusion occurs. Since white dwarfs are primarily made of carbon, the entire star ignites and explodes, resulting in what ...
... dwarf, increasing its mass until it begins to collapse under its own weight. As the white dwarf collapses, it heats up, until it reaches 6 × 108 K, the temperature at which carbon fusion occurs. Since white dwarfs are primarily made of carbon, the entire star ignites and explodes, resulting in what ...
Learning Objectives
... dwarf, increasing its mass until it begins to collapse under its own weight. As the white dwarf collapses, it heats up, until it reaches 6 × 108 K, the temperature at which carbon fusion occurs. Since white dwarfs are primarily made of carbon, the entire star ignites and explodes, resulting in what ...
... dwarf, increasing its mass until it begins to collapse under its own weight. As the white dwarf collapses, it heats up, until it reaches 6 × 108 K, the temperature at which carbon fusion occurs. Since white dwarfs are primarily made of carbon, the entire star ignites and explodes, resulting in what ...
Answers for the HST Scavenger Hunt
... crosses this threshold, the speed required for it to escape the black hole’s gravitational grip is greater than the speed of light. When scientists used the HST to study Cygnus X-1, they were able to observe two of these events, which defines the tern defined above. Infall events or dying pulse trai ...
... crosses this threshold, the speed required for it to escape the black hole’s gravitational grip is greater than the speed of light. When scientists used the HST to study Cygnus X-1, they were able to observe two of these events, which defines the tern defined above. Infall events or dying pulse trai ...
Physics - Content by Unit
... dark matter in the early 1930s while studying how galaxies move within the Coma Cluster. The Coma Cluster consists of approximately 1,000 galaxies spread over about two degrees on the sky—roughly the size of your thumb held at arm's length, and four times the size of the Sun and the Moon seen from E ...
... dark matter in the early 1930s while studying how galaxies move within the Coma Cluster. The Coma Cluster consists of approximately 1,000 galaxies spread over about two degrees on the sky—roughly the size of your thumb held at arm's length, and four times the size of the Sun and the Moon seen from E ...
11 Celestial Objects and Events Every Stargazer Should See
... tled into their nighttime routine. In the final moments before totality, bright beads of light appear along the limb of the merged disks– they are called Baileyʼs Beads— caused by the edge of the Sun shining through lunar valleys. As the Sun shines through a single valley just before and after tota ...
... tled into their nighttime routine. In the final moments before totality, bright beads of light appear along the limb of the merged disks– they are called Baileyʼs Beads— caused by the edge of the Sun shining through lunar valleys. As the Sun shines through a single valley just before and after tota ...
AST 301 Introduction to Astronomy - University of Texas Astronomy
... How does the life story of a massive star differ? For stars up to about 8 Msun, the story is like that for the Sun. It just runs faster. For each doubling of the mass, the luminosity goes up by about 10, so fusion must be running 10 times faster, so it uses up its fuel about 5 times faster. An 8 Ms ...
... How does the life story of a massive star differ? For stars up to about 8 Msun, the story is like that for the Sun. It just runs faster. For each doubling of the mass, the luminosity goes up by about 10, so fusion must be running 10 times faster, so it uses up its fuel about 5 times faster. An 8 Ms ...
Low-Res Version - Chandra X
... The colors we see in the world around us are the result of the way that the human eye and brain perceive different wavelengths of light in the visible part of the electromagnetic spectrum. X-rays, and other wavelengths such as radio, infra-red, ultra-violet and gamma, cannot be seen with the human e ...
... The colors we see in the world around us are the result of the way that the human eye and brain perceive different wavelengths of light in the visible part of the electromagnetic spectrum. X-rays, and other wavelengths such as radio, infra-red, ultra-violet and gamma, cannot be seen with the human e ...
hubble_refurb
... The Hubble Space Telescope’s newly repaired Advanced Camera for Surveys (ACS) has peered nearly 5 billion light years away to resolve intricate details in the galaxy cluster Abell 370. Abell 370 is one of the very first galaxy clusters where astronomers observed the phenomenon of gravitational lens ...
... The Hubble Space Telescope’s newly repaired Advanced Camera for Surveys (ACS) has peered nearly 5 billion light years away to resolve intricate details in the galaxy cluster Abell 370. Abell 370 is one of the very first galaxy clusters where astronomers observed the phenomenon of gravitational lens ...
Test 1, Feb. 2, 2016 - Brock physics
... (b) As the star spins, beams of radiation from it sweep through space. If one of these beams points towards the Earth, we observe a pulse. (c) The star vibrates. (d) The star undergoes nuclear explosions that generate radio emissions. ...
... (b) As the star spins, beams of radiation from it sweep through space. If one of these beams points towards the Earth, we observe a pulse. (c) The star vibrates. (d) The star undergoes nuclear explosions that generate radio emissions. ...
Solutions to Homework #4, AST 203, Spring 2012
... RNS /RCO = 10km/(0.5R ) ≈ 2×10−5 . The period is then PNS = (2×10−5 )2 ×30days ≈ 1 millisecond. This number is actually near the limit of how fast a neutron star can rotate. From observations of radio pulsars we infer that neutron stars are born with periods from 1 to 20 milliseconds and then spin ...
... RNS /RCO = 10km/(0.5R ) ≈ 2×10−5 . The period is then PNS = (2×10−5 )2 ×30days ≈ 1 millisecond. This number is actually near the limit of how fast a neutron star can rotate. From observations of radio pulsars we infer that neutron stars are born with periods from 1 to 20 milliseconds and then spin ...
History of supernova observation
The known history of supernova observation goes back to 185 CE, when, supernova SN 185 appeared, the oldest appearance of a supernova recorded by humankind. Several additional supernovae within the Milky Way galaxy have been recorded since that time, with SN 1604 being the most recent supernova to be observed in this galaxy.Since the development of the telescope, the field of supernova discovery has expanded to other galaxies. These occurrences provide important information on the distances of galaxies. Successful models of supernova behavior have also been developed, and the role of supernovae in the star formation process is now increasingly understood.