Meade ETX-90 Student Guide
... WARNING: After this point, do not loosen the horizontal locks or move the telescope by any means other than the Autostar controller! Doing so will ruin the alignment process, and you will have to start all over again. The telescope will now automatically find north (and do some other things). Eventu ...
... WARNING: After this point, do not loosen the horizontal locks or move the telescope by any means other than the Autostar controller! Doing so will ruin the alignment process, and you will have to start all over again. The telescope will now automatically find north (and do some other things). Eventu ...
Missions
... The first infrared survey of the sky, performed by Gerry Neugebauer and Robert Leighton – who built their own telescope for the purpose – changed this view completely. The results were published in 1965 and Harwit describes them as “electrifying”: they revealed ten objects that were completely invis ...
... The first infrared survey of the sky, performed by Gerry Neugebauer and Robert Leighton – who built their own telescope for the purpose – changed this view completely. The results were published in 1965 and Harwit describes them as “electrifying”: they revealed ten objects that were completely invis ...
ESA BR-170 - ESA Science
... The first infrared survey of the sky, performed by Gerry Neugebauer and Robert Leighton – who built their own telescope for the purpose – changed this view completely. The results were published in 1965 and Harwit describes them as “electrifying”: they revealed ten objects that were completely invis ...
... The first infrared survey of the sky, performed by Gerry Neugebauer and Robert Leighton – who built their own telescope for the purpose – changed this view completely. The results were published in 1965 and Harwit describes them as “electrifying”: they revealed ten objects that were completely invis ...
The Big Eye Now and Then
... discover that galaxies were large, distant conglomerations of stars and gas, separate from our own Milky Way galaxy, and that the universe itself was expanding. Palomar’s Hale Telescope was large enough that Hubble could ride inside the telescope in what is known as the prime focus cage. From that l ...
... discover that galaxies were large, distant conglomerations of stars and gas, separate from our own Milky Way galaxy, and that the universe itself was expanding. Palomar’s Hale Telescope was large enough that Hubble could ride inside the telescope in what is known as the prime focus cage. From that l ...
Rest-frame Optical Spectra: A Window into Galaxy Formation at z~2
... • We typically target a small number of Xray and/or IR-selected AGNs on each mask. • Use MOSFIRE spectra to identify additional AGNs. • We will study AGN demographics, distributions of BH accretion rates, methods of AGN detection. • With early sample of AGNs (red X-ray, burgunday IR), we are sta ...
... • We typically target a small number of Xray and/or IR-selected AGNs on each mask. • Use MOSFIRE spectra to identify additional AGNs. • We will study AGN demographics, distributions of BH accretion rates, methods of AGN detection. • With early sample of AGNs (red X-ray, burgunday IR), we are sta ...
structure and evolution of white dwarfs and their
... the quantum statistical theory of the electron gas by Enrico Fermi and Paul Dirac. When atoms in a material are sufficiently close together, their most weakly bound electrons move freely about the volume and can be considered to behave like a gas. Almost all the electrons in the gas will occupy the ...
... the quantum statistical theory of the electron gas by Enrico Fermi and Paul Dirac. When atoms in a material are sufficiently close together, their most weakly bound electrons move freely about the volume and can be considered to behave like a gas. Almost all the electrons in the gas will occupy the ...
Chapter 20
... In 1948, the 200-inch (5-m) “Hale” reflecting telescope opened at the Palomar Observatory, also in California, and was for many years the largest in the world. Current electronic imaging detectors, specifically chargecoupled devices (CCDs) similar to those in camcorders and digital cameras, have mad ...
... In 1948, the 200-inch (5-m) “Hale” reflecting telescope opened at the Palomar Observatory, also in California, and was for many years the largest in the world. Current electronic imaging detectors, specifically chargecoupled devices (CCDs) similar to those in camcorders and digital cameras, have mad ...
3.2 Multi-Conjugate Adaptive Optics
... Note that each star has been blown up by 15x to be able to better see the PSF variations. Because of this, the crowding looks worse than it actually is (especially on the No-AO image). The guide stars are not shown on these images, but their positions are marked by crosses. ...
... Note that each star has been blown up by 15x to be able to better see the PSF variations. Because of this, the crowding looks worse than it actually is (especially on the No-AO image). The guide stars are not shown on these images, but their positions are marked by crosses. ...
Lecture 14
... • Stars have different colors? So is the amount of light at different wavelengths the same? • Can we tell the difference between a very luminous star that is far away and an intrinsically low luminosity star that is nearby? ASTR111 Lecture 14 ...
... • Stars have different colors? So is the amount of light at different wavelengths the same? • Can we tell the difference between a very luminous star that is far away and an intrinsically low luminosity star that is nearby? ASTR111 Lecture 14 ...
Near-Earth Asteroid Search Programs
... the available technology in a very clever way. They developed a drift-scan technique where the readout rate was clocked to the sidereal drift rate across the CCD. The long scans produced images with minimal pixel-to-pixel (flatfield) variation, and readout overhead was limited to rampup and ramp-dow ...
... the available technology in a very clever way. They developed a drift-scan technique where the readout rate was clocked to the sidereal drift rate across the CCD. The long scans produced images with minimal pixel-to-pixel (flatfield) variation, and readout overhead was limited to rampup and ramp-dow ...
JRASC, June 2014 Issue (PDF, low resolution)
... New insights are emerging concerning the planet Mars and the likelihood of its past habitability. This information is surfacing from the first detailed examination of clay mineralogy found in its original setting on that planet. The insights come from the Chemistry and Mineralogy X-Ray Diffraction a ...
... New insights are emerging concerning the planet Mars and the likelihood of its past habitability. This information is surfacing from the first detailed examination of clay mineralogy found in its original setting on that planet. The insights come from the Chemistry and Mineralogy X-Ray Diffraction a ...
A Starscape in Red and Blue - Royal Astronomical Society of Canada
... New insights are emerging concerning the planet Mars and the likelihood of its past habitability. This information is surfacing from the first detailed examination of clay mineralogy found in its original setting on that planet. The insights come from the Chemistry and Mineralogy X-Ray Diffraction a ...
... New insights are emerging concerning the planet Mars and the likelihood of its past habitability. This information is surfacing from the first detailed examination of clay mineralogy found in its original setting on that planet. The insights come from the Chemistry and Mineralogy X-Ray Diffraction a ...
book_text4
... The Hubble Space Telescope has undoubtedly had a greater public impact than any other space astronomy mission ever. The images included in this beautiful volume are quite staggering in what they reveal about the Universe we live in and have already become part of our common scientific and cultural h ...
... The Hubble Space Telescope has undoubtedly had a greater public impact than any other space astronomy mission ever. The images included in this beautiful volume are quite staggering in what they reveal about the Universe we live in and have already become part of our common scientific and cultural h ...
The Occurrence and Architecture of Exoplanetary Systems
... Solar System. Isaac Newton realized that the Solar System is more orderly than required by the laws of motion and took this as evidence for God’s hand in creation. Pierre-Simon Laplace was inspired by the same facts to devise a mechanistic theory for the formation of the Solar System. Since then, it ...
... Solar System. Isaac Newton realized that the Solar System is more orderly than required by the laws of motion and took this as evidence for God’s hand in creation. Pierre-Simon Laplace was inspired by the same facts to devise a mechanistic theory for the formation of the Solar System. Since then, it ...
AGN surveys to study galaxy evolution along cosmic times
... measuring the AGN and starburst contributions to their bolometric luminosities over a wide range of cosmological epochs, through their spectroscopic signatures. SPICA (Nakagawa et al. 2011) will be the next-generation, space infrared observatory, which, for the first time, will contain a large (3.2-m ...
... measuring the AGN and starburst contributions to their bolometric luminosities over a wide range of cosmological epochs, through their spectroscopic signatures. SPICA (Nakagawa et al. 2011) will be the next-generation, space infrared observatory, which, for the first time, will contain a large (3.2-m ...
Star 1 A star is a massive, luminous ball of plasma held together by
... For at least a portion of its life, a star shines due to thermonuclear fusion of hydrogen in its core releasing energy that traverses the star's interior and then radiates into outer space. Almost all naturally occurring elements heavier than helium were created by stars, either via stellar nucleosy ...
... For at least a portion of its life, a star shines due to thermonuclear fusion of hydrogen in its core releasing energy that traverses the star's interior and then radiates into outer space. Almost all naturally occurring elements heavier than helium were created by stars, either via stellar nucleosy ...
Discoveries with the Green Bank Telescope
... The collective Hydrogen signal from unresolved, distant galaxies has been detected using the GBT in a powerful, new technique which probes large scale structure at intermediate redshifts. This technique of “intensity mapping”' has the potential to measure the scale of the Baryon Acoustic Oscillation ...
... The collective Hydrogen signal from unresolved, distant galaxies has been detected using the GBT in a powerful, new technique which probes large scale structure at intermediate redshifts. This technique of “intensity mapping”' has the potential to measure the scale of the Baryon Acoustic Oscillation ...
1 Pau Amaro Seoane - modest 15-s
... We present an expression of the external gravitational field of a general ring-like object with the axial and plane symmetries such as annular disks or oval toroids with an arbitrary density distribution. The main term is that of an infinitely thin ring (Fukushima, 2010, Celest. Mech. Dyn. Astron., ...
... We present an expression of the external gravitational field of a general ring-like object with the axial and plane symmetries such as annular disks or oval toroids with an arbitrary density distribution. The main term is that of an infinitely thin ring (Fukushima, 2010, Celest. Mech. Dyn. Astron., ...
Other Planetary Systems
... observers guessed that stars were much more mundane; typical guesses suggested that they were holes in the celestial sphere or flaming rocks in the sky. The only way to realize that stars are suns is to know that they are incredibly far away; then, a simple calculation will show that they are actual ...
... observers guessed that stars were much more mundane; typical guesses suggested that they were holes in the celestial sphere or flaming rocks in the sky. The only way to realize that stars are suns is to know that they are incredibly far away; then, a simple calculation will show that they are actual ...
Planet formation
... (a) in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit. ...
... (a) in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit. ...
Lithium abundances along the red giant branch: FLAMES
... agreed with the expected value for the difference in heliocentric correction, and the same shift was found for all spectra obtained at a given time. Therefore, we can exclude that these shifts are the result of orbital motion in a binary system. No other velocity shifts were found within the accuracy ...
... agreed with the expected value for the difference in heliocentric correction, and the same shift was found for all spectra obtained at a given time. Therefore, we can exclude that these shifts are the result of orbital motion in a binary system. No other velocity shifts were found within the accuracy ...
The Milky Way as a galaxy
... vector of the star cluster. In other words, the direction vector of the stars is such that they are all moving towards the convergence point. Thus, nconv (and hence v=jvj) can be measured from the direction of the proper motions of the stars in the cluster. On the other hand, one component of v can ...
... vector of the star cluster. In other words, the direction vector of the stars is such that they are all moving towards the convergence point. Thus, nconv (and hence v=jvj) can be measured from the direction of the proper motions of the stars in the cluster. On the other hand, one component of v can ...
Introduction to Observational Cosmology
... – Red galaxies used to be much more rare! - Luminous, blue galaxies used to be much more common ...
... – Red galaxies used to be much more rare! - Luminous, blue galaxies used to be much more common ...
Chemical abundances and winds of massive stars in M31: a Btype
... very young association, having formed in the last ,5 Myr. The deprojected position of OB 10 would suggest it has a galactocentric distance of 5.9 kpc. Blair, Kirshner & Chevalier (1982) have determined an abundance gradient in M31 from a combination of observations of H II regions and supernova remn ...
... very young association, having formed in the last ,5 Myr. The deprojected position of OB 10 would suggest it has a galactocentric distance of 5.9 kpc. Blair, Kirshner & Chevalier (1982) have determined an abundance gradient in M31 from a combination of observations of H II regions and supernova remn ...
Space Interferometry Mission
The Space Interferometry Mission, or SIM, also known as SIM Lite (formerly known as SIM PlanetQuest), was a planned space telescope developed by the U.S. National Aeronautics and Space Administration (NASA), in conjunction with contractor Northrop Grumman. One of the main goals of the mission was the hunt for Earth-sized planets orbiting in the habitable zones of nearby stars other than the Sun. SIM was postponed several times and finally cancelled in 2010.In addition to hunting for extrasolar planets, SIM would have helped astronomers construct a map of the Milky Way galaxy. Other important tasks would have included collecting data to help pinpoint stellar masses for specific types of stars, assisting in the determination of the spatial distribution of dark matter in the Milky Way and in the Local Group of galaxies and using the gravitational microlensing effect to measure the mass of stars.The spacecraft would have used optical interferometry to accomplish these and other scientific goals. This technique collects light with multiple mirrors (in SIM's case, two) which is combined to make an interference pattern which can be very precisely measured.The initial contracts for SIM Lite were awarded in 1998, totaling US$200 million. Work on the SIM project required scientists and engineers to move through eight specific new technology milestones, and by November 2006, all eight had been completed.SIM Lite was originally scheduled for a 2005 launch, aboard an Evolved Expendable Launch Vehicle (EELV). As a result of continued budget cuts, the launch date has been pushed back at least five times. NASA has set a preliminary launch date for 2015 and U.S. federal budget documents confirm that a launch date is expected ""no earlier"" than 2015. The budget cuts to SIM Lite are expected to continue through FY 2010. As of February 2007, many of the engineers working on the SIM program had moved on to other areas and projects, and NASA directed the project to allocate its resources toward engineering risk reduction. However, the preliminary budget for NASA for 2008 included zero dollars for SIM.In December 2007, the Congress restored funding for fiscal year 2008 as part of an omnibus appropriations bill which the President later signed. At the same time the Congress directed NASA to move the mission forward to the development phase. In 2009 the project continued its risk reduction work while waiting for the findings and recommendations of the Astronomy and Astrophysics Decadal Survey, Astro2010, performed by the National Academy of Sciences, which would determine the project's future.On 13 August 2010, the Astro2010 Decadal Report was released and did not recommend that NASA continue the development of the SIM Lite Astrometric Observatory. This prompted NASA Astronomy and Physics Director, Jon Morse, to issue a letter on 24 September 2010 to the SIM Lite project manager, informing him that NASA was discontinuing its sponsorship of the SIM Lite mission and directing the project to discontinue Phase B activities immediately or as soon as practical. Accordingly, all SIM Lite activities were closed down by the end of calendar year 2010.