The SPEED Project - European Southern Observatory
... Detection (SPEED) testbench. This is an advanced facility in development at the Lagrange Laboratory that will address several of the most critical issues affecting high-contrast imaging for the next generation of optical/near-infrared telescopes. The SPEED testbed can be used to investigate practica ...
... Detection (SPEED) testbench. This is an advanced facility in development at the Lagrange Laboratory that will address several of the most critical issues affecting high-contrast imaging for the next generation of optical/near-infrared telescopes. The SPEED testbed can be used to investigate practica ...
Adaptive Optics: basic principles and applications Short course of
... Optical observations by ground-based astronomers have long been limited by the distorting effects of the Earth’s atmosphere. Primary mirrors of telescopes have been polished to exquisite accuracy for telescopes with apertures as large as 10 meters, but at optical wavelengths these can deliver an an ...
... Optical observations by ground-based astronomers have long been limited by the distorting effects of the Earth’s atmosphere. Primary mirrors of telescopes have been polished to exquisite accuracy for telescopes with apertures as large as 10 meters, but at optical wavelengths these can deliver an an ...
High energy cosmic gamma rays detectors
... IACTs use a matrix of photo multipliers in the focal plane of the segmented mirror in the David-Cotton geometry to detect the light flashes of Cherenkov light generated by ultra-relativistic charged secondary air shower particles against a large background due to the light of the night sky. As it wa ...
... IACTs use a matrix of photo multipliers in the focal plane of the segmented mirror in the David-Cotton geometry to detect the light flashes of Cherenkov light generated by ultra-relativistic charged secondary air shower particles against a large background due to the light of the night sky. As it wa ...
chapter 2
... A star speckled night sky filled the minds of men with awe, not only in the past but also at present. From the ancient time, man has observed stars and planets appearing in the night sky and he has come up with various theories about them. Accordingly, astronomy can be considered as the oldest scien ...
... A star speckled night sky filled the minds of men with awe, not only in the past but also at present. From the ancient time, man has observed stars and planets appearing in the night sky and he has come up with various theories about them. Accordingly, astronomy can be considered as the oldest scien ...
Photometric Analysis of the Pi of the Sky Data
... to be rejected. Each site will consist of 12 customdesigned CCD cameras placed on specially designed equatorial mounts (4 cameras per mount). The full system is now under construction. Necessary tests before constructing the final version were performed with a prototype consisting of 2 custom-designe ...
... to be rejected. Each site will consist of 12 customdesigned CCD cameras placed on specially designed equatorial mounts (4 cameras per mount). The full system is now under construction. Necessary tests before constructing the final version were performed with a prototype consisting of 2 custom-designe ...
June 2017
... is not uniform across the range but peaks at a specific wavelength value (λmax) which depends on the temperature of the object. Towards the end of the nineteenth-century graphs such as these could be obtained experimentally, but explaining their shape provided the greatest scientific 10 challenge of ...
... is not uniform across the range but peaks at a specific wavelength value (λmax) which depends on the temperature of the object. Towards the end of the nineteenth-century graphs such as these could be obtained experimentally, but explaining their shape provided the greatest scientific 10 challenge of ...
Assignment 8 - utoledo.edu
... ____ 21. In a planetary nebula, the shell of expelled material is glowing intensely. What is the main source of energy for this glow? a. friction, as the atoms of the expelled shell rub against each other b. the explosion of the dying star c. ultraviolet radiation from the hot star at the center d ...
... ____ 21. In a planetary nebula, the shell of expelled material is glowing intensely. What is the main source of energy for this glow? a. friction, as the atoms of the expelled shell rub against each other b. the explosion of the dying star c. ultraviolet radiation from the hot star at the center d ...
$doc.title
... Best centroiding of image of a bright point source: aboue 1/100 of the image size. So from the Earth’s surface, we can measure a parallax of 0.01 arcsec or larger, corresponding to distances of 100 pc or smaller. At larger distances, we must rely on indirect estimates based on calibrated properties, ...
... Best centroiding of image of a bright point source: aboue 1/100 of the image size. So from the Earth’s surface, we can measure a parallax of 0.01 arcsec or larger, corresponding to distances of 100 pc or smaller. At larger distances, we must rely on indirect estimates based on calibrated properties, ...
Worksheet 3 - Perimeter Institute
... between the gravitational mass within this radius and the total mass of the stars (1.54 x 1041 kg). Represent this difference as a percentage of the gravitational mass within the orbital radius. Record your answers in the “Missing Mass” column. 6. Do your results support the following statement? “It ...
... between the gravitational mass within this radius and the total mass of the stars (1.54 x 1041 kg). Represent this difference as a percentage of the gravitational mass within the orbital radius. Record your answers in the “Missing Mass” column. 6. Do your results support the following statement? “It ...
Stars, Galaxies, and the Universe Section 1 Section 1
... stars. The sun has a diameter of 1,390,000 km. • Most of the stars you can see in the night sky are medium-sized stars. • Many stars also have about the same mass as the sun, however some stars may be more or less massive. ...
... stars. The sun has a diameter of 1,390,000 km. • Most of the stars you can see in the night sky are medium-sized stars. • Many stars also have about the same mass as the sun, however some stars may be more or less massive. ...
Frantic Finish - Max-Planck
... neutrinos. These nearly massless particles succeed almost effortlessly in penetrating practically anything that gets in their way – like our thumbnail, through which more than 66 billion of these elusive phantoms race every second. That they also play a role in supernovae has been known since the ev ...
... neutrinos. These nearly massless particles succeed almost effortlessly in penetrating practically anything that gets in their way – like our thumbnail, through which more than 66 billion of these elusive phantoms race every second. That they also play a role in supernovae has been known since the ev ...
Microsoft Power Point version
... we observe only a brief moment in any one star’s life by studying large numbers of stars, we get a “snapshot” of one moment in the history of the stellar community we can draw conclusions just like we would with human census data…we do stellar demographics! ...
... we observe only a brief moment in any one star’s life by studying large numbers of stars, we get a “snapshot” of one moment in the history of the stellar community we can draw conclusions just like we would with human census data…we do stellar demographics! ...
Star Fromation and ISM
... in the globular cluster is due to its extreme age – those stars have already used up their fuel and have moved off the main sequence. ...
... in the globular cluster is due to its extreme age – those stars have already used up their fuel and have moved off the main sequence. ...
Science
... Ancient Errors – Earth and the heavens are distinct realms • While he might not have proven heliocentrism correct, Galileo showed that Ptolemy’s model could not be correct • But what about the Greek idea that the heavens were perfect and the Earth imperfect? • Heavenly bodies like the Moon were sup ...
... Ancient Errors – Earth and the heavens are distinct realms • While he might not have proven heliocentrism correct, Galileo showed that Ptolemy’s model could not be correct • But what about the Greek idea that the heavens were perfect and the Earth imperfect? • Heavenly bodies like the Moon were sup ...
The star is born
... A young cluster of stars, formed about 2 million years ago are illuminating a cloud of hydrogen gas and dust. The UV radiation from these O and B stars is ionizing the hydrogen atoms. The subsequent recombination of electrons and protons, with the electrons in excited states leads to the emission of ...
... A young cluster of stars, formed about 2 million years ago are illuminating a cloud of hydrogen gas and dust. The UV radiation from these O and B stars is ionizing the hydrogen atoms. The subsequent recombination of electrons and protons, with the electrons in excited states leads to the emission of ...
doc
... extremely old, about 10 billion years. Can you now guess why so many globular clusters have about the same (old) age, and are still “in one piece” (not dissolved), while not a single open cluster is older than about 5 billion years, and nearly all of them are younger than about 100 million years? Do ...
... extremely old, about 10 billion years. Can you now guess why so many globular clusters have about the same (old) age, and are still “in one piece” (not dissolved), while not a single open cluster is older than about 5 billion years, and nearly all of them are younger than about 100 million years? Do ...
Cataclysmic Variable Stars
... accretion disk. When the mass-accretion rate is high (Mdot ~ 10^-8 Msun/yr; e.g., novalike variables and dwarf novae in outburst), the boundary layer is optically thick and its temperature ~ 10^5 K (10 eV), so it radiates primarily in the extreme ultraviolet and soft X-ray bandpasses. When the mass- ...
... accretion disk. When the mass-accretion rate is high (Mdot ~ 10^-8 Msun/yr; e.g., novalike variables and dwarf novae in outburst), the boundary layer is optically thick and its temperature ~ 10^5 K (10 eV), so it radiates primarily in the extreme ultraviolet and soft X-ray bandpasses. When the mass- ...
TMT Scientific Information Brochure
... in Kuiper Belt research. These outer reaches contain a vast swarm of small icy bodies that preserve details of the formation of the Solar System and the materials out of which the planets formed. The composition of these bodies is best determined through observations in the near-infrared (1-2.5 µm) ...
... in Kuiper Belt research. These outer reaches contain a vast swarm of small icy bodies that preserve details of the formation of the Solar System and the materials out of which the planets formed. The composition of these bodies is best determined through observations in the near-infrared (1-2.5 µm) ...
New meteor shower could light up night sky May 23 –... May 22, 2014 Doug Duncan
... director of CU- Boulder’s Fiske Planetarium, excited to see how many meteors will streak across the night sky. CUT 1 “In my whole life I have never seen a new meteor shower. We have the old, dependable meteor shows. Every August 11 and 12, for instance, we get the Perseid Meteor Shower. And now, all ...
... director of CU- Boulder’s Fiske Planetarium, excited to see how many meteors will streak across the night sky. CUT 1 “In my whole life I have never seen a new meteor shower. We have the old, dependable meteor shows. Every August 11 and 12, for instance, we get the Perseid Meteor Shower. And now, all ...
Biographical Information
... In that course, and afterwards, I had extensive experience using the 24-inch research telescope at ISU's Erwin W. Fick Observatory to do CCD photometry and imaging, using the IRAF software package to process the CCD images. Since 2005, I have been doing CCD photometry transformed to the standard mag ...
... In that course, and afterwards, I had extensive experience using the 24-inch research telescope at ISU's Erwin W. Fick Observatory to do CCD photometry and imaging, using the IRAF software package to process the CCD images. Since 2005, I have been doing CCD photometry transformed to the standard mag ...
universe - Global Change
... billion galaxies - these are incredible numbers. This image is of very young galaxies observed by the Hubble Space Telescope at the very limit of its range. The sky is full of such strange looking galaxies in all directions (except where masked by intervening dust clouds). The universe is home to a ...
... billion galaxies - these are incredible numbers. This image is of very young galaxies observed by the Hubble Space Telescope at the very limit of its range. The sky is full of such strange looking galaxies in all directions (except where masked by intervening dust clouds). The universe is home to a ...
How far away are the Stars?
... If the earth was a grain of sand orbiting a small marble-sized Sun with a radius of 1m, then Proxima Centauri would be 270km away! Barnard’s Star would be 370km away! ...
... If the earth was a grain of sand orbiting a small marble-sized Sun with a radius of 1m, then Proxima Centauri would be 270km away! Barnard’s Star would be 370km away! ...
Support Astronomer Position - Gran Telescopio CANARIAS
... Gran Telescopio Canarias (GTC) invites applications for three Support Astronomer (SA) positions, based in La Palma (Spain). The GTC, with a diameter of 10.4 metres, is the largest single aperture telescope in the world and it is in operation since March 2009. The GTC is sited at the Roque de los Muc ...
... Gran Telescopio Canarias (GTC) invites applications for three Support Astronomer (SA) positions, based in La Palma (Spain). The GTC, with a diameter of 10.4 metres, is the largest single aperture telescope in the world and it is in operation since March 2009. The GTC is sited at the Roque de los Muc ...
The Importance of Knowing
... • Th-Ar hollow cathode lamps - a standard source for wavelength calibration for near IR astronomy ...
... • Th-Ar hollow cathode lamps - a standard source for wavelength calibration for near IR astronomy ...
APOM 2014 April
... Sedna caused quite a stir after its discovery in 2003, because it resides in a kind of orbital "no man's land". Its perihelion (closest point to the Sun) is 76 a.u. — too far away to have been flung out there by a close pass with an outer planet. Dynamicists have speculated that a star passed very c ...
... Sedna caused quite a stir after its discovery in 2003, because it resides in a kind of orbital "no man's land". Its perihelion (closest point to the Sun) is 76 a.u. — too far away to have been flung out there by a close pass with an outer planet. Dynamicists have speculated that a star passed very c ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.