Lecture 2: ppt, 5 MB
... X-rays from Cygnus X-1 come from as close as 20100 miles from the black hole, but it does not seem to be spinning Chandra observations of another stellar black hole, GX 339-4, indicate that it is spinning rapidly ...
... X-rays from Cygnus X-1 come from as close as 20100 miles from the black hole, but it does not seem to be spinning Chandra observations of another stellar black hole, GX 339-4, indicate that it is spinning rapidly ...
ppt
... the Milky Way, like the Orion Nebula). Curtis argued for “island universe” hypothesis (i.e., there are many islands of stars like the Milky Way in the universe). ...
... the Milky Way, like the Orion Nebula). Curtis argued for “island universe” hypothesis (i.e., there are many islands of stars like the Milky Way in the universe). ...
the universe
... This is called red-shift, a change in frequency of the position of the lines. Astronomers have found that the further from us a star is the more its light is red-shifted. This tells us that distant galaxies are moving away from us, and that the further a galaxy is the faster it is moving away. Since ...
... This is called red-shift, a change in frequency of the position of the lines. Astronomers have found that the further from us a star is the more its light is red-shifted. This tells us that distant galaxies are moving away from us, and that the further a galaxy is the faster it is moving away. Since ...
the universe
... This is called red-shift, a change in frequency of the position of the lines. Astronomers have found that the further from us a star is the more its light is red-shifted. This tells us that distant galaxies are moving away from us, and that the further a galaxy is the faster it is moving away. Since ...
... This is called red-shift, a change in frequency of the position of the lines. Astronomers have found that the further from us a star is the more its light is red-shifted. This tells us that distant galaxies are moving away from us, and that the further a galaxy is the faster it is moving away. Since ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
... • There is an open house at the Observatory every Thursday when it’s clear. Students should check the observatory website before going since the times may change as the semester progresses and the telescope may be down for repairs at times. The website is http://www.astro.umass.edu/~orchardhill/inde ...
... • There is an open house at the Observatory every Thursday when it’s clear. Students should check the observatory website before going since the times may change as the semester progresses and the telescope may be down for repairs at times. The website is http://www.astro.umass.edu/~orchardhill/inde ...
Space Exploration
... several problems for space travel. Objects can produce a lot of friction as they collide with the particles that make up the atmosphere. (You can get a sense of this friction if you ride in an openroofed car.) A vehicle used for space travel needs powerful rocket engines to overcome Earth’s gravitat ...
... several problems for space travel. Objects can produce a lot of friction as they collide with the particles that make up the atmosphere. (You can get a sense of this friction if you ride in an openroofed car.) A vehicle used for space travel needs powerful rocket engines to overcome Earth’s gravitat ...
Jim_lecture_Chapter
... • Planets orbiting late K and M stars may be tidally locked • Early F and A stars have short lifetimes and give off lots of UV radiation • Habitable zones around solar-type stars appear to be relatively wide Kasting et al., Icarus (1993) ...
... • Planets orbiting late K and M stars may be tidally locked • Early F and A stars have short lifetimes and give off lots of UV radiation • Habitable zones around solar-type stars appear to be relatively wide Kasting et al., Icarus (1993) ...
VISIT TO NORMAN LOCKYER OBSERVATORY IN SIDMOUTH
... Virgo, in the south-east after sunset this month, is not one of the most prominent constellations, containing only one bright star, Spica, but is one of the largest and is very rewarding for those with "rich field" telescopes capable of seeing the many galaxies that lie within its boundaries. Spica ...
... Virgo, in the south-east after sunset this month, is not one of the most prominent constellations, containing only one bright star, Spica, but is one of the largest and is very rewarding for those with "rich field" telescopes capable of seeing the many galaxies that lie within its boundaries. Spica ...
ASTRO2010 SCIENCE WHITE PAPER
... Spitzer IRS indicate that mid-IR molecular emission is common in protoplanetary disks; roughly 90% of the ∼60 classical T Tau stars observed so far with Spitzer IRS show water and/or other simple molecules (Carr & Najita 2008, Salyk et al. 2008; J. Carr, personal communication). This will be rich te ...
... Spitzer IRS indicate that mid-IR molecular emission is common in protoplanetary disks; roughly 90% of the ∼60 classical T Tau stars observed so far with Spitzer IRS show water and/or other simple molecules (Carr & Najita 2008, Salyk et al. 2008; J. Carr, personal communication). This will be rich te ...
That star is an M-dwarf, smaller, dimmer and cooler than our sun. So
... (11) That star is an M-dwarf, smaller, dimmer and cooler than our sun. So even though Kepler-186f sits closer to its sun than Mercury does to our sun, it is still safely located in a habitable zone. (12) Many scientists have thought that life couldn’t develop near M-dwarf stars. This is because they ...
... (11) That star is an M-dwarf, smaller, dimmer and cooler than our sun. So even though Kepler-186f sits closer to its sun than Mercury does to our sun, it is still safely located in a habitable zone. (12) Many scientists have thought that life couldn’t develop near M-dwarf stars. This is because they ...
Click here to get the file
... use because of the small dynamic range (i.e. gains and offsets have to be changed often) and signals saturate the output. Change: The spectrometer they used had a 12-bit A/D converter. We have upgraded to a new spectrometer with a 20-bit A/D converter and now have plenty of dynamic range. The spectr ...
... use because of the small dynamic range (i.e. gains and offsets have to be changed often) and signals saturate the output. Change: The spectrometer they used had a 12-bit A/D converter. We have upgraded to a new spectrometer with a 20-bit A/D converter and now have plenty of dynamic range. The spectr ...
Lecture7
... Outer Region: Icy frost condensed beyond the snowline providing more mass for planet building. ...
... Outer Region: Icy frost condensed beyond the snowline providing more mass for planet building. ...
Planets Beyond the Solar System
... It is a gas giant (about 6x Jupiter’s mass) called VB 10b and is about 20 light-years away in the constellation Aquila. It is orbiting a star about 1/12 the mass of our Sun. It is about as far from its star as Mercury is from the Sun. ...
... It is a gas giant (about 6x Jupiter’s mass) called VB 10b and is about 20 light-years away in the constellation Aquila. It is orbiting a star about 1/12 the mass of our Sun. It is about as far from its star as Mercury is from the Sun. ...
Planets Beyond the Solar System
... It is a gas giant (about 6x Jupiter’s mass) called VB 10b and is about 20 light-years away in the constellation Aquila. It is orbiting a star about 1/12 the mass of our Sun. It is about as far from its star as Mercury is from the Sun. ...
... It is a gas giant (about 6x Jupiter’s mass) called VB 10b and is about 20 light-years away in the constellation Aquila. It is orbiting a star about 1/12 the mass of our Sun. It is about as far from its star as Mercury is from the Sun. ...
MOPTOP
... structure of a comet from the solar light scattered by dust particles in the coma. The linear polarisation depends on the intrinsic properties of the dust particles (their size, structure and composition) and also on their spatial distribution. The wider views of polarised light in the coma provide ...
... structure of a comet from the solar light scattered by dust particles in the coma. The linear polarisation depends on the intrinsic properties of the dust particles (their size, structure and composition) and also on their spatial distribution. The wider views of polarised light in the coma provide ...
Space Exploration Review Notes
... elliptical orbit around our Sun that can be predicted. Comet tails only appear when they are near a sun. The hot, solar winds vapourize the ice and blow the tail in a direction that faces away from the sun (not trailing behind the comet as some people think). Comets have elliptical orbits with two f ...
... elliptical orbit around our Sun that can be predicted. Comet tails only appear when they are near a sun. The hot, solar winds vapourize the ice and blow the tail in a direction that faces away from the sun (not trailing behind the comet as some people think). Comets have elliptical orbits with two f ...
observingnebulaeclusters-1
... above the critical limit required for stars to form within the nebula. Visible to the naked eye as the middle "star" in the "sword" of the constellation Orion, the nebula is located 1500 light years from Earth. A closer image taken with the Wide Field Planetary Camera 2 aboard the Hubble Space Teles ...
... above the critical limit required for stars to form within the nebula. Visible to the naked eye as the middle "star" in the "sword" of the constellation Orion, the nebula is located 1500 light years from Earth. A closer image taken with the Wide Field Planetary Camera 2 aboard the Hubble Space Teles ...
Cosmology 20B Homework 2 solutions
... 12. You are 2m away from a candle and 5m away from a 75 watt light bulb. Both the candle and the light bulb look to be the same brightness to your eye. How many watts of power is the candle producing? The brightness falls off like the distance squared so we have bcandle = 75W (2m/5m)2 = 12W The foll ...
... 12. You are 2m away from a candle and 5m away from a 75 watt light bulb. Both the candle and the light bulb look to be the same brightness to your eye. How many watts of power is the candle producing? The brightness falls off like the distance squared so we have bcandle = 75W (2m/5m)2 = 12W The foll ...
The magnitude scale
... An increase of one magnitude corresponds to approximately 2.5 less light reaching the eye or telescope. [A scale like this where a quantity is multiplied by a fixed amount for a fixed increase in its scale value, is called a logarithmic scale. Another example that you may be familiar with is the dec ...
... An increase of one magnitude corresponds to approximately 2.5 less light reaching the eye or telescope. [A scale like this where a quantity is multiplied by a fixed amount for a fixed increase in its scale value, is called a logarithmic scale. Another example that you may be familiar with is the dec ...
Constellation, Star, and Deep Sky Object
... 1 light year ≈ 6 trillion miles / 9.5 trillion km Parsec = parallax second of arc – distance that a star “jumps” one second of a degree of arc in the sky as a result of the earth’s revolution around the sun. 1 parsec = 3.262 light years Distance in astronomy is measured in light years, parsecs, or a ...
... 1 light year ≈ 6 trillion miles / 9.5 trillion km Parsec = parallax second of arc – distance that a star “jumps” one second of a degree of arc in the sky as a result of the earth’s revolution around the sun. 1 parsec = 3.262 light years Distance in astronomy is measured in light years, parsecs, or a ...
Deep Space Mystery Note Form 3
... Telescope has allowed us to look farther than the milky way. 1885 observation of supernova S Andromedae in the Andromeda galaxy was the first to be observed with a telescope. Provide info on cosmological distances In the 1960s some astromomers discovered the maximum intensities of supernova ...
... Telescope has allowed us to look farther than the milky way. 1885 observation of supernova S Andromedae in the Andromeda galaxy was the first to be observed with a telescope. Provide info on cosmological distances In the 1960s some astromomers discovered the maximum intensities of supernova ...
Spitzer Space Telescope
The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program.The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. Without liquid helium to cool the telescope to the very low temperatures needed to operate, most of the instruments are no longer usable. However, the two shortest-wavelength modules of the IRAC camera are still operable with the same sensitivity as before the cryogen was exhausted, and will continue to be used in the Spitzer Warm Mission. All Spitzer data, from both the primary and warm phases, are archived at the Infrared Science Archive (IRSA).In keeping with NASA tradition, the telescope was renamed after its successful demonstration of operation, on 18 December 2003. Unlike most telescopes that are named after famous deceased astronomers by a board of scientists, the new name for SIRTF was obtained from a contest open to the general public.The contest led to the telescope being named in honor of astronomer Lyman Spitzer, who had promoted the concept of space telescopes in the 1940s. Spitzer wrote a 1946 report for RAND Corporation describing the advantages of an extraterrestrial observatory and how it could be realized with available or upcoming technology. He has been cited for his pioneering contributions to rocketry and astronomy, as well as ""his vision and leadership in articulating the advantages and benefits to be realized from the Space Telescope Program.""The US$800 million Spitzer was launched from Cape Canaveral Air Force Station, on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 UTC-5 (EDT).It follows a heliocentric instead of geocentric orbit, trailing and drifting away from Earth's orbit at approximately 0.1 astronomical unit per year (a so-called ""earth-trailing"" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and is cooled to 5.5 K (−449.77 °F). The satellite contains three instruments that allow it to perform astronomical imaging and photometry from 3 to 180 micrometers, spectroscopy from 5 to 40 micrometers, and spectrophotometry from 5 to 100 micrometers.