Mass Segregation in Globular Clusters
... in our galaxy—have demonstrated an elegant structural feature: mass segregation as predicted by the principle known as “equipartition of energy.” The structure of a stellar system—the distribution of the positions and velocities of its stars—depends on competing processes that have varying natural t ...
... in our galaxy—have demonstrated an elegant structural feature: mass segregation as predicted by the principle known as “equipartition of energy.” The structure of a stellar system—the distribution of the positions and velocities of its stars—depends on competing processes that have varying natural t ...
Star Formation
... Thought Question What would happen to a contracting cloud fragment if it were not able to radiate away its thermal energy? A. It would continue contracting, but its temperature would not change B. Its mass would increase C. Its internal pressure would increase ...
... Thought Question What would happen to a contracting cloud fragment if it were not able to radiate away its thermal energy? A. It would continue contracting, but its temperature would not change B. Its mass would increase C. Its internal pressure would increase ...
B - Department of Physics and Astronomy
... C. The more massive star captured the other one into orbit some time after the two stars had formed D. Stars evolve differently in binary star systems, with less massive stars evolving f faster than more massive stars 18. How many properties of the matter inside a black hole can be measured from out ...
... C. The more massive star captured the other one into orbit some time after the two stars had formed D. Stars evolve differently in binary star systems, with less massive stars evolving f faster than more massive stars 18. How many properties of the matter inside a black hole can be measured from out ...
Lecture 20: Formation of Planets, Exoplanets 3/30
... first extrasolar planet observed in 1995. In Jan 2000, 28 observed and now about 3700 confirmed. Many systems with 2 or more observed planets • difficult to observe directly • mostly look for impact on Star: wobbles due to gravity of planets or reduction of light due to “eclipse” • If multiple plane ...
... first extrasolar planet observed in 1995. In Jan 2000, 28 observed and now about 3700 confirmed. Many systems with 2 or more observed planets • difficult to observe directly • mostly look for impact on Star: wobbles due to gravity of planets or reduction of light due to “eclipse” • If multiple plane ...
Space Unit notes
... The Milky Way Galaxy is the galaxy our solar system is a part of. It is shaped like a flattened pinwheel, with arms spiraling out from the center. Black holes are actually invisible to telescopes. Their existence is only known by an indirect method – when celestial material comes close to a black ho ...
... The Milky Way Galaxy is the galaxy our solar system is a part of. It is shaped like a flattened pinwheel, with arms spiraling out from the center. Black holes are actually invisible to telescopes. Their existence is only known by an indirect method – when celestial material comes close to a black ho ...
Portable CDK Alt-Az Telescope.qxp
... of alt-az telescopes do not change their orientation with respect to local gravity, while their optical tube assemblies (OTAs) only change their orientation in one plane (altitude) instead of two (right ascension and declination). As a result, the cost of large alt-az telescopes and their enclosures ...
... of alt-az telescopes do not change their orientation with respect to local gravity, while their optical tube assemblies (OTAs) only change their orientation in one plane (altitude) instead of two (right ascension and declination). As a result, the cost of large alt-az telescopes and their enclosures ...
- CUNY Academic Works
... hundred years of technological innovations we would not understand it to the extent that we do today. The instruments used by astronomers have drastically changed over the centuries since the introduction of the telescope in 1610, and as a result, our perception of the universe has changed as well. ...
... hundred years of technological innovations we would not understand it to the extent that we do today. The instruments used by astronomers have drastically changed over the centuries since the introduction of the telescope in 1610, and as a result, our perception of the universe has changed as well. ...
Word version of Episode 701
... Temperature, relative speed to Earth, rate of spin, orbital speed (and hence mass), and what they are made from can all be deduced by analysis of their electromagnetic radiation. Knowing what stars ‘are’, that those twinkling pin points of light have a structure, and that our Sun is made of the same ...
... Temperature, relative speed to Earth, rate of spin, orbital speed (and hence mass), and what they are made from can all be deduced by analysis of their electromagnetic radiation. Knowing what stars ‘are’, that those twinkling pin points of light have a structure, and that our Sun is made of the same ...
Color-Magnitude Diagram Lab Manual
... values. 3. The second step is to estimate the age of the cluster. As the cluster ages, the shape of its CMD also changes. By selecting Tools → Isochrones you can add an isochrone on your CMD, which is a theoretical prediction of how the stars should be distributed at a certain age of the cluster. Yo ...
... values. 3. The second step is to estimate the age of the cluster. As the cluster ages, the shape of its CMD also changes. By selecting Tools → Isochrones you can add an isochrone on your CMD, which is a theoretical prediction of how the stars should be distributed at a certain age of the cluster. Yo ...
Observing stars - Teaching Advanced Physics
... Temperature, relative speed to Earth, rate of spin, orbital speed (and hence mass), and what they are made from can all be deduced by analysis of their electromagnetic radiation. Knowing what stars ‘are’, that those twinkling pin points of light have a structure, and that our Sun is made of the same ...
... Temperature, relative speed to Earth, rate of spin, orbital speed (and hence mass), and what they are made from can all be deduced by analysis of their electromagnetic radiation. Knowing what stars ‘are’, that those twinkling pin points of light have a structure, and that our Sun is made of the same ...
telescopes I
... otherwise you risk to fight fire with gas.. • keep it as simple as you can • an optical design that gives you perfect results on the computer might not work in reality: somebody has to build it, and you have to align it!! ...
... otherwise you risk to fight fire with gas.. • keep it as simple as you can • an optical design that gives you perfect results on the computer might not work in reality: somebody has to build it, and you have to align it!! ...
Slide 1
... accretion disk indicating BH or WH in center--a quadrillion solar masses!) The Pisces-Cetus Complex: may include 400 rich (and lots of poor) clusters. Brent Tully. Is the Universe homogeneous? God's Bubble Bath: Galaxy superclusters seem to from in bubble structures and filaments with Voids 100-500 ...
... accretion disk indicating BH or WH in center--a quadrillion solar masses!) The Pisces-Cetus Complex: may include 400 rich (and lots of poor) clusters. Brent Tully. Is the Universe homogeneous? God's Bubble Bath: Galaxy superclusters seem to from in bubble structures and filaments with Voids 100-500 ...
For Me? You Shouldn`t Have! - Robert Ferguson Observatory
... observatory in my honor. Maybe they didn’t really launch in my honor but it was on my birthday which is pretty cool. This new solar observatory is called SDO: Solar Dynamics Observatory and it was launched on February 11, 2010. (You might want to make a note of the date for next year.) According to ...
... observatory in my honor. Maybe they didn’t really launch in my honor but it was on my birthday which is pretty cool. This new solar observatory is called SDO: Solar Dynamics Observatory and it was launched on February 11, 2010. (You might want to make a note of the date for next year.) According to ...
What is a Solar System?
... The microscopic ripples mean that some regions contained more mass than average. This increases the pull of gravity towards those regions, bringing even more mass in. Slowly, over millions of years, dense patches of gas and dark matter gather as a result of the increased gravity. As the gas falls in ...
... The microscopic ripples mean that some regions contained more mass than average. This increases the pull of gravity towards those regions, bringing even more mass in. Slowly, over millions of years, dense patches of gas and dark matter gather as a result of the increased gravity. As the gas falls in ...
Geoscience Final Review material
... d. Temperature of the stars 137. Which is longer, a day according to the Sun (solar day), or a day according to the background stars (sidereal day)? a. The longest day is a sidereal day c. The longest day is a solar day b. The days are the same length (duh) d. The shortest day is any day there is a ...
... d. Temperature of the stars 137. Which is longer, a day according to the Sun (solar day), or a day according to the background stars (sidereal day)? a. The longest day is a sidereal day c. The longest day is a solar day b. The days are the same length (duh) d. The shortest day is any day there is a ...
The Stars - University of Redlands
... Mizar, 88 light years distant, is the middle star in the handle of the Big Dipper. It was the first binary star system to be imaged with a telescope. Spectroscopic observations show periodic Doppler shifts in the spectra of Mizar A and B, indicating that they are each binary stars. But they were too ...
... Mizar, 88 light years distant, is the middle star in the handle of the Big Dipper. It was the first binary star system to be imaged with a telescope. Spectroscopic observations show periodic Doppler shifts in the spectra of Mizar A and B, indicating that they are each binary stars. But they were too ...
resolution, electromagnetic waves and binary stars
... What is the explanation for this? Well, stars emit electromagnetic waves at all wavelengths. However, depending on the temperature of the star there will be a more intense section of the electromagnetic spectrum where the star radiates, usually in the Infra-red, Visible or Ultraviolet regions. The h ...
... What is the explanation for this? Well, stars emit electromagnetic waves at all wavelengths. However, depending on the temperature of the star there will be a more intense section of the electromagnetic spectrum where the star radiates, usually in the Infra-red, Visible or Ultraviolet regions. The h ...
Biosignatures of Kepler 62 e And Kepler f
... The search for life is a question that has had mankind begging for an aswer. It had Galileo see seas on the moon, is the main driving force in Martian Exploration, and great desire to go even further and search for life in moons like Europa and Titan, what at one point was only found in science fict ...
... The search for life is a question that has had mankind begging for an aswer. It had Galileo see seas on the moon, is the main driving force in Martian Exploration, and great desire to go even further and search for life in moons like Europa and Titan, what at one point was only found in science fict ...
Let`s Observe the Andromeda Nebula (M31)!
... IYA 2009 “You are Galileo” Project Let’s Observe the Andromeda Nebula (M31) ! Name ...
... IYA 2009 “You are Galileo” Project Let’s Observe the Andromeda Nebula (M31) ! Name ...
The Milky Way galaxy
... of about 25 pc. He could then use their angular diameters to get approximate distance for clusters whose stars were too faint to study individually. He discovered that the center of the globular cluster system was situated in Sagittarius at a distance of some 50,000 light years. However, he did not ...
... of about 25 pc. He could then use their angular diameters to get approximate distance for clusters whose stars were too faint to study individually. He discovered that the center of the globular cluster system was situated in Sagittarius at a distance of some 50,000 light years. However, he did not ...
PPT - IAC
... temperature goes down [and then maybe up again in the PN phase] • The grains may be smaller in the ionized regions than in any external neutral shells • The crystalline silicates may be enhanced in the postAGB evolution but this is not clearly established • If the star becomes C-rich late in the evo ...
... temperature goes down [and then maybe up again in the PN phase] • The grains may be smaller in the ionized regions than in any external neutral shells • The crystalline silicates may be enhanced in the postAGB evolution but this is not clearly established • If the star becomes C-rich late in the evo ...
VOYAGER® 8 INCH DOBSONIAN TELESCOPE MODEL 78-8000
... of the most satisfying objects in the sky to see simply because it looks like it does in pictures. Imagine seeing what you've seen in textbooks or NASA images from your backyard! Jupiter--the largest planet in our solar system is spectacular. Most noted features are its dark stripes or bands both ab ...
... of the most satisfying objects in the sky to see simply because it looks like it does in pictures. Imagine seeing what you've seen in textbooks or NASA images from your backyard! Jupiter--the largest planet in our solar system is spectacular. Most noted features are its dark stripes or bands both ab ...
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.