Cosmochemistry from Nanometers to Light- Years A Written by
... other primitive materials that formed in the solar nebula before the planets formed. We have known for a long time that the CAIs were the oldest solids to form in the solar nebula, but it was not clear if chondrules formed at the same time, or later, and if later, how much later? Age-dating wizards ...
... other primitive materials that formed in the solar nebula before the planets formed. We have known for a long time that the CAIs were the oldest solids to form in the solar nebula, but it was not clear if chondrules formed at the same time, or later, and if later, how much later? Age-dating wizards ...
The production and updating of experimental results
... The production and updating of experimental results Experimental results are by no means straightforwardly given. As any experimentalist, and indeed any science student, knows, getting an experiment to work is no easy matter. A significant new experiment can take months or even years to successfully ...
... The production and updating of experimental results Experimental results are by no means straightforwardly given. As any experimentalist, and indeed any science student, knows, getting an experiment to work is no easy matter. A significant new experiment can take months or even years to successfully ...
Lecture 1 – Astronomy
... OUR SOLAR SYSTEM IS BORN The solar system was born about 4.5 billion years ago. Astronomers believe the Sun and the planets were created from a collapsing cloud of dust and gas. An exploding star, likely a super nova near by, made the cloud of gas contract. As the gas contracted more and more due t ...
... OUR SOLAR SYSTEM IS BORN The solar system was born about 4.5 billion years ago. Astronomers believe the Sun and the planets were created from a collapsing cloud of dust and gas. An exploding star, likely a super nova near by, made the cloud of gas contract. As the gas contracted more and more due t ...
April 2011 - Skyscrapers, Inc.
... year orbit of the Sun, our Earthly perspective affords us a view of this magnificently ringed world from different angles above or below the ring plane. Since September 2009 we have been observing the north face of the rings, which are now tilted less than 10 degrees to the horizontal. Despite this ...
... year orbit of the Sun, our Earthly perspective affords us a view of this magnificently ringed world from different angles above or below the ring plane. Since September 2009 we have been observing the north face of the rings, which are now tilted less than 10 degrees to the horizontal. Despite this ...
April - Bristol Astronomical Society
... In the eastern half of the Mare, running North to South is the 134 km (79 mile) long wrinkle ridge known as the Dorsa Smirnov. This is a very prominent feature and can be seen with large binoculars or a small telescope. Midway along the ridge is the small crater Very; a bowl shaped crater with high ...
... In the eastern half of the Mare, running North to South is the 134 km (79 mile) long wrinkle ridge known as the Dorsa Smirnov. This is a very prominent feature and can be seen with large binoculars or a small telescope. Midway along the ridge is the small crater Very; a bowl shaped crater with high ...
Lecture 2 - The University Centre in Svalbard
... OUR SOLAR SYSTEM IS BORN The solar system was born about 4.5 billion years ago. Astronomers believe the Sun and the planets were created from a collapsing cloud of dust and gas. An exploding star, likely a super nova near by, made the cloud of gas contract. As the gas contracted more and more due t ...
... OUR SOLAR SYSTEM IS BORN The solar system was born about 4.5 billion years ago. Astronomers believe the Sun and the planets were created from a collapsing cloud of dust and gas. An exploding star, likely a super nova near by, made the cloud of gas contract. As the gas contracted more and more due t ...
The Milky Way Galaxy
... clusters are plotted, using correct magnitudes, they form a halo around the galactic plane. • This helps us determine that the center is 8 kpc from the Solar System and that the galaxy is 30 kpc in width. HALO ...
... clusters are plotted, using correct magnitudes, they form a halo around the galactic plane. • This helps us determine that the center is 8 kpc from the Solar System and that the galaxy is 30 kpc in width. HALO ...
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 ...
here
... • The sun is made up of some interesting components: a) The Photosphere and Sun Spots: the outer surface of the sun is called the Photosphere. It has a temperature of 5 500 degrees Celsius. There are darker patches called sunspots. These are not truly black they are just cooler areas and by contras ...
... • The sun is made up of some interesting components: a) The Photosphere and Sun Spots: the outer surface of the sun is called the Photosphere. It has a temperature of 5 500 degrees Celsius. There are darker patches called sunspots. These are not truly black they are just cooler areas and by contras ...
CONSTELLATION TELESCOPIUM THE TELESCOPE Telescopium
... Telescopium constellation lies in the southern sky, to the south of Sagittarius and Corona Australis. It represents a telescope The constellation culminates on the 13th of August, at the same time as Wega (Vega) of the Lyre (Lyra). Telescopium is the 57th constellation in size, occupying an area of ...
... Telescopium constellation lies in the southern sky, to the south of Sagittarius and Corona Australis. It represents a telescope The constellation culminates on the 13th of August, at the same time as Wega (Vega) of the Lyre (Lyra). Telescopium is the 57th constellation in size, occupying an area of ...
Reflecting Telescopes
... form a parallelogram with the end-rings such that motion of the end rings is of equal magnitude and in parallel, thus keeping the optical elements collimated in spite of flexure. The Gemini telescopes use a variant of this principle, with the large cubical sections at the center of gravity eliminate ...
... form a parallelogram with the end-rings such that motion of the end rings is of equal magnitude and in parallel, thus keeping the optical elements collimated in spite of flexure. The Gemini telescopes use a variant of this principle, with the large cubical sections at the center of gravity eliminate ...
Radio Waves
... one of the world's premier astronomical radio observatories. The VLA consists of 27 antennas arranged in a huge "Y" pattern up to 36 km (22 miles) across -roughly one and a half times the size of Washington, DC. The VLA, located in New Mexico, is an interferometer; this means that it operates by mul ...
... one of the world's premier astronomical radio observatories. The VLA consists of 27 antennas arranged in a huge "Y" pattern up to 36 km (22 miles) across -roughly one and a half times the size of Washington, DC. The VLA, located in New Mexico, is an interferometer; this means that it operates by mul ...
Searching for Baby Planets in a Star`s Dusty Rings
... pressure is high. The work by Isella et al. [1] makes a considerable step towards resolving this ambiguity: They image not only the gaps in the dust of a protoplanetary disk, but also the distribution of gas (specifically, carbon monoxide) across these gaps, thus providing a more detailed descriptio ...
... pressure is high. The work by Isella et al. [1] makes a considerable step towards resolving this ambiguity: They image not only the gaps in the dust of a protoplanetary disk, but also the distribution of gas (specifically, carbon monoxide) across these gaps, thus providing a more detailed descriptio ...
Choosing a Telescope - AbergavennyAS.org.uk
... The f ratio is the focal length divided by the diameter of the primary mirror F10 is a relatively “slow” design, f4 is a “fast” design. Lower f ratios give wider fields of view but lower magnification, the image is brighter but they are more challenging to collimate and have worse coma. F4.7 to f8 i ...
... The f ratio is the focal length divided by the diameter of the primary mirror F10 is a relatively “slow” design, f4 is a “fast” design. Lower f ratios give wider fields of view but lower magnification, the image is brighter but they are more challenging to collimate and have worse coma. F4.7 to f8 i ...
Diapositiva 1 - ScienceNet.cn
... Thinking outside the box and putting things in perspective might help ...
... Thinking outside the box and putting things in perspective might help ...
Final Exam - Practice questions for Unit V
... A scientific theory must be consistent with the current data. A scientific theory must be modified or rejected if it does not agree with future data. ...
... A scientific theory must be consistent with the current data. A scientific theory must be modified or rejected if it does not agree with future data. ...
Answers for the HST Scavenger Hunt
... A barred spiral galaxy has a “bar” of stars and interstellar matter, such as dust and gas, slicing across its center. A typical spiral galaxy has a spherical central bulge of older stars surrounded by a flattened galactic disk. ...
... A barred spiral galaxy has a “bar” of stars and interstellar matter, such as dust and gas, slicing across its center. A typical spiral galaxy has a spherical central bulge of older stars surrounded by a flattened galactic disk. ...
6 Very High Energy Gamma Ray Astronomy with CTA - UZH
... of around 2 GS/s. However, creating a continuously digitized 2 GS/s pathway is prohibitive both in terms of cost and power consumption for an array of cameras that each consist of thousands of channels. Interestingly, our collaborators at the Max Plank Institute for Nuclear Physics (MPI-K) in Heidel ...
... of around 2 GS/s. However, creating a continuously digitized 2 GS/s pathway is prohibitive both in terms of cost and power consumption for an array of cameras that each consist of thousands of channels. Interestingly, our collaborators at the Max Plank Institute for Nuclear Physics (MPI-K) in Heidel ...
Document
... with separations of several arc-minutes to achieve profiling of the surface layer of turbulence with very high resolution in altitude (10m or less). From Telescope ...
... with separations of several arc-minutes to achieve profiling of the surface layer of turbulence with very high resolution in altitude (10m or less). From Telescope ...
AGN-Hubble
... The Hubble Constant and the Age of the Universe If you plot the scale of the Universe vs time, the Hubble constant is the slope of the line now. If it’s really constant, then the age of the Universe is just 1/H [since H=v/D=(d/t)/d]. That’s because if you know how fast we are expanding, you can run ...
... The Hubble Constant and the Age of the Universe If you plot the scale of the Universe vs time, the Hubble constant is the slope of the line now. If it’s really constant, then the age of the Universe is just 1/H [since H=v/D=(d/t)/d]. That’s because if you know how fast we are expanding, you can run ...
No Slide Title - RAL Solar Orbiter
... 1. absolute wavelength calibration, i.e. No requirement for stability between ground & use. The spectrometer is self-calibrating in flight by being able to recognise known spectra. ...
... 1. absolute wavelength calibration, i.e. No requirement for stability between ground & use. The spectrometer is self-calibrating in flight by being able to recognise known spectra. ...
Lecture 02: Astronomical Optical Telescopes
... Astigmatism: off-axis point aberration caused by the inclination of incident wavefronts relative to the optical surface Astigmatism: results from the projectional asymmetry onto surface Astigmatism: the focus of rays in the plane containing the axis of the system and off-axis source (the tangential ...
... Astigmatism: off-axis point aberration caused by the inclination of incident wavefronts relative to the optical surface Astigmatism: results from the projectional asymmetry onto surface Astigmatism: the focus of rays in the plane containing the axis of the system and off-axis source (the tangential ...
Answer - Brock physics
... 66. The planets that still have much of their primary atmospheres are (a) only Jupiter. (b) only Earth. (c) all terrestrial planets. (d) * all Jovian planets. 67. The most abundant gas in the atmosphere of Venus is (a) sulfuric acid. (b) oxygen. (c) nitrogen. (d) * carbon dioxide. 68. A planet can l ...
... 66. The planets that still have much of their primary atmospheres are (a) only Jupiter. (b) only Earth. (c) all terrestrial planets. (d) * all Jovian planets. 67. The most abundant gas in the atmosphere of Venus is (a) sulfuric acid. (b) oxygen. (c) nitrogen. (d) * carbon dioxide. 68. A planet can l ...
Unit 5 – Creating and Understanding Spectra
... The Sizes of Planets – and Stars We easily determine the sizes of planets in the Solar System because we can resolve them: see “how big they look”. That’s not the case for stars, which appear as dots of light. Given their temperatures, however, we can consider the total light they emit, and deduce ...
... The Sizes of Planets – and Stars We easily determine the sizes of planets in the Solar System because we can resolve them: see “how big they look”. That’s not the case for stars, which appear as dots of light. Given their temperatures, however, we can consider the total light they emit, and deduce ...
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.