The VIMOS Ultra-Deep Survey (VUDS): Fast Increase in the Fraction
... evolves faster, at 2 < z < 3.5, than for the bright ones. We do observe an anticorrelation between E(B-V) and fesc (Lyα): generally galaxies with high fesc (Lyα) also have small amounts of dust (and vice versa). However, when the dust content is low (E(B-V)<0.05) we observe a very broad range of fes ...
... evolves faster, at 2 < z < 3.5, than for the bright ones. We do observe an anticorrelation between E(B-V) and fesc (Lyα): generally galaxies with high fesc (Lyα) also have small amounts of dust (and vice versa). However, when the dust content is low (E(B-V)<0.05) we observe a very broad range of fes ...
History of the Telescope
... at the public meeting of the Royal Bavarian Academy of Sciences on July, 10 1824): ...
... at the public meeting of the Royal Bavarian Academy of Sciences on July, 10 1824): ...
Galaxies
... underlying dark matter. We have started to understand how baryonic gas within the dark matter halos cools and collapses to form stars, and how the energy from star formation can feed back into the surrounding gas and regulate subsequent star formation. However, at a fundamental level we still lack a ...
... underlying dark matter. We have started to understand how baryonic gas within the dark matter halos cools and collapses to form stars, and how the energy from star formation can feed back into the surrounding gas and regulate subsequent star formation. However, at a fundamental level we still lack a ...
Annual Report 2011 - Max Planck Institute for Astrophysics
... and chemistry of the interstellar medium, the inter- (the RZG; the principal supercomputing centre of action of hot, dilute plasmas with magnetic fields the Society as a whole). MPA scientists have free and energetic particles, and the calculation of tran- access to the RZG and are among the top use ...
... and chemistry of the interstellar medium, the inter- (the RZG; the principal supercomputing centre of action of hot, dilute plasmas with magnetic fields the Society as a whole). MPA scientists have free and energetic particles, and the calculation of tran- access to the RZG and are among the top use ...
What Makes a Failure? Designing a New National Telescope, 1975
... The most significant change on the institutional landscape of astronomy after the Second World War was the establishment of national observatory facilities making telescopes available to the entire American astronomical community. Prior to this, only a few telescopes were federally funded and operat ...
... The most significant change on the institutional landscape of astronomy after the Second World War was the establishment of national observatory facilities making telescopes available to the entire American astronomical community. Prior to this, only a few telescopes were federally funded and operat ...
User`s Manual for the 84cm and 1.5m Telescopes
... The program that controls the secondary mirror has been modified to correct this systematic effect automatically. This correction is implemented as an option. To use it, click the push button Corrige por flexiones (Figure 7). Note that this option should only be activated after the telescope has bee ...
... The program that controls the secondary mirror has been modified to correct this systematic effect automatically. This correction is implemented as an option. To use it, click the push button Corrige por flexiones (Figure 7). Note that this option should only be activated after the telescope has bee ...
A Telescope Operating Manual
... The field of view of the Celestron telescope is relatively small even at low powers. Finding even bright objects without some optical aid is difficult. Finding fainter objects would be a matter of luck, even for the skilled observer. To overcome this limitation the telescope is equipped with an exce ...
... The field of view of the Celestron telescope is relatively small even at low powers. Finding even bright objects without some optical aid is difficult. Finding fainter objects would be a matter of luck, even for the skilled observer. To overcome this limitation the telescope is equipped with an exce ...
Telescopes
... of the telescope resolution. This is because the size of the blurred image is usually greater than the size of a telescope diffraction pattern. It is in fact that the seeing size that determines the telescope resolution in most of groundbased observations. Star image under very bad seeing. 1” seeing ...
... of the telescope resolution. This is because the size of the blurred image is usually greater than the size of a telescope diffraction pattern. It is in fact that the seeing size that determines the telescope resolution in most of groundbased observations. Star image under very bad seeing. 1” seeing ...
Structure of Hot Molecular Cores
... 3.7.1 Line radiative transfer . . . . . . . . . . . . . . 3.7.2 Fitting strategy . . . . . . . . . . . . . . . . . . 3.7.3 The ’final’ model . . . . . . . . . . . . . . . . . 3.8 Modeling results . . . . . . . . . . . . . . . . . . . . . 3.8.1 G10.47+0.03 . . . . . . . . . . . . . . . . . . . 3.8.2 ...
... 3.7.1 Line radiative transfer . . . . . . . . . . . . . . 3.7.2 Fitting strategy . . . . . . . . . . . . . . . . . . 3.7.3 The ’final’ model . . . . . . . . . . . . . . . . . 3.8 Modeling results . . . . . . . . . . . . . . . . . . . . . 3.8.1 G10.47+0.03 . . . . . . . . . . . . . . . . . . . 3.8.2 ...
Measurement of the earthshine polarization in the B, V, R, and I
... To minimize read-out overheads and detector noise the CCD was operated with 3 × 3 pixel binning providing a spatial resolution of about 10 arcsec, which is sufficiently high for distinguishing mare and highland regions on the Moon. To minimize differential instrumental effects in the polarimetric si ...
... To minimize read-out overheads and detector noise the CCD was operated with 3 × 3 pixel binning providing a spatial resolution of about 10 arcsec, which is sufficiently high for distinguishing mare and highland regions on the Moon. To minimize differential instrumental effects in the polarimetric si ...
Science with the Constellation
... 1.2 The Ultimate Limits of Gravity Since their discovery, quasars and active galactic nuclei (AGN) have stood out as uniquely luminous objects in the Universe. Today we are confident that their ultimate power source is the release of gravitational energy sustained by an accretion disk, which is fee ...
... 1.2 The Ultimate Limits of Gravity Since their discovery, quasars and active galactic nuclei (AGN) have stood out as uniquely luminous objects in the Universe. Today we are confident that their ultimate power source is the release of gravitational energy sustained by an accretion disk, which is fee ...
David AJ Seargent
... series—Weird Worlds—took a somewhat broader view insofar as recent discoveries about other planets have uncovered many features and phenomena which may certainly be regarded as “weird” or anomalous in comparison with anything experienced on Earth. The present volume continues this approach. Strange ...
... series—Weird Worlds—took a somewhat broader view insofar as recent discoveries about other planets have uncovered many features and phenomena which may certainly be regarded as “weird” or anomalous in comparison with anything experienced on Earth. The present volume continues this approach. Strange ...
Herschel Observers` Manual
... Figure 1.2 shows Herschel, Planck and the Sylda approximately 26 hours after launch, when they were already 226 000km from Earth (approximately 0.5 Lunar Distances). It is already obvious from this image how Herschel and Planck were released into slightly different transfer orbits due their differin ...
... Figure 1.2 shows Herschel, Planck and the Sylda approximately 26 hours after launch, when they were already 226 000km from Earth (approximately 0.5 Lunar Distances). It is already obvious from this image how Herschel and Planck were released into slightly different transfer orbits due their differin ...
New Generation Ground-Based Optical/Infrared Telescopes
... moons of Jupiter were the first astronomical discoveries made with a telescope. The development of larger refracting and reflecting telescopes led to the seminal discoveries of the rings of Saturn, asteroids, the outer planets Uranus and Neptune, new satellites of Mars and the outer planets, and Plu ...
... moons of Jupiter were the first astronomical discoveries made with a telescope. The development of larger refracting and reflecting telescopes led to the seminal discoveries of the rings of Saturn, asteroids, the outer planets Uranus and Neptune, new satellites of Mars and the outer planets, and Plu ...
Exploring the Most Bizarre Ideas in Cosmology Astronomers
... explanations. The next volume in the series—Weird Worlds—took a somewhat broader view insofar as recent discoveries about other planets have uncovered many features and phenomena which may certainly be regarded as "weird" or anomalous in comparison with anything experienced on Earth. The present vol ...
... explanations. The next volume in the series—Weird Worlds—took a somewhat broader view insofar as recent discoveries about other planets have uncovered many features and phenomena which may certainly be regarded as "weird" or anomalous in comparison with anything experienced on Earth. The present vol ...
Comets to Cosmology - Nrao - National Radio Astronomy Observatory
... The GBT has the best protection of any US observatory from many forms of man-made radio frequency interference as it is located in the National Radio Quiet Zone and the West Virginia Radio Astronomy Zone. The Observatory's location in a lightlypopulated valley in the monongahela National Forest, sur ...
... The GBT has the best protection of any US observatory from many forms of man-made radio frequency interference as it is located in the National Radio Quiet Zone and the West Virginia Radio Astronomy Zone. The Observatory's location in a lightlypopulated valley in the monongahela National Forest, sur ...
Portable CDK Alt-Az Telescope.qxp
... interesting objects whose true nature can only be revealed through extensive follow-up observations. There simply is not enough large telescope time for such observations, so this task falls to modest aperture research telescopes. If the cost of such modest aperture telescopes could be significantly ...
... interesting objects whose true nature can only be revealed through extensive follow-up observations. There simply is not enough large telescope time for such observations, so this task falls to modest aperture research telescopes. If the cost of such modest aperture telescopes could be significantly ...
SST-GATE: An Innovative Telescope for the Very High
... telescopes of different sizes. A few large-size telescopes (LSTs), with parabolic dishes, will cover the lowest energies; a few tens of medium-size telescopes (MSTs), of Davies-Cotton (D-C) design, are optimised for the TeV energy range; and many tens of small-size telescopes (SSTs), of D-C or S-C d ...
... telescopes of different sizes. A few large-size telescopes (LSTs), with parabolic dishes, will cover the lowest energies; a few tens of medium-size telescopes (MSTs), of Davies-Cotton (D-C) design, are optimised for the TeV energy range; and many tens of small-size telescopes (SSTs), of D-C or S-C d ...
Polarimetry: a powerful diagnostic tool in astronomy
... to determine the location of the obscured source (where the normals to each polarization vector intersect), the degrees of polarization in the two lobes of the reflection nebula can be used to determine the inclination of the system, and the wavelength dependence of polarization can be used to deter ...
... to determine the location of the obscured source (where the normals to each polarization vector intersect), the degrees of polarization in the two lobes of the reflection nebula can be used to determine the inclination of the system, and the wavelength dependence of polarization can be used to deter ...
The redshift of extragalactic nebulae
... be an attempt in the right direction. The test was positive but without success, because it turned out that the apparent diameters of nebulae at the same distance display large variations. E. HUBBLE at Mount Wilson worked in the same direction. He also first tried to connect the red-shift to the app ...
... be an attempt in the right direction. The test was positive but without success, because it turned out that the apparent diameters of nebulae at the same distance display large variations. E. HUBBLE at Mount Wilson worked in the same direction. He also first tried to connect the red-shift to the app ...
The quest for the size of the universe in early relativistic cosmology
... the expanding universe. The variety of methods to obtain the curvature radius and corresponding estimates is summarized in table 2. The aim of this paper is to illustrate how the ideas, methods, and results proposed to measure the world radius can be read as noteworthy contributions to the first int ...
... the expanding universe. The variety of methods to obtain the curvature radius and corresponding estimates is summarized in table 2. The aim of this paper is to illustrate how the ideas, methods, and results proposed to measure the world radius can be read as noteworthy contributions to the first int ...
T3-Cosmic Star Formation History
... Over the past two decades, an avalanche of new data from multiwavelength imaging and spectroscopic surveys has revolutionized our view of galaxy formation and evolution. Here we review the range of complementary techniques and theoretical tools that allow astronomers to map the cosmic history of sta ...
... Over the past two decades, an avalanche of new data from multiwavelength imaging and spectroscopic surveys has revolutionized our view of galaxy formation and evolution. Here we review the range of complementary techniques and theoretical tools that allow astronomers to map the cosmic history of sta ...
Reflecting Telescopes
... it kept the primary and secondary mirrors in the correct relative positions. The telescope tube includes a cubical section at its center of gravity where the declination axis is attached. Eight triangular trusses are fixed to the corners of the cube, four pointing up to the top end ring which suppor ...
... it kept the primary and secondary mirrors in the correct relative positions. The telescope tube includes a cubical section at its center of gravity where the declination axis is attached. Eight triangular trusses are fixed to the corners of the cube, four pointing up to the top end ring which suppor ...
Introduction to Cosmology - Experimental Elementary Particle
... numbers, though, it is Mgal ≈ 1012 M¯ . The Sun, incidentally, also provides the standard unit of power used in astronomy. The Sun’s luminosity (that is, the rate at which it radiates away energy in the form of light) is 1 L¯ = 3.8 × 1026 watts. The total luminosity of our Galaxy is Lgal = 3.6 × 101 ...
... numbers, though, it is Mgal ≈ 1012 M¯ . The Sun, incidentally, also provides the standard unit of power used in astronomy. The Sun’s luminosity (that is, the rate at which it radiates away energy in the form of light) is 1 L¯ = 3.8 × 1026 watts. The total luminosity of our Galaxy is Lgal = 3.6 × 101 ...
Discovery of Cluster-Scale Lensed Quasars using the Subaru
... quasars. So far we have succeeded in discovering two cluster-scale lensed quasars, SDSS J1004+4112 and SDSS J1029+2623. We used the Subaru Telescope for the discoveries and further follow-up observations of both of them. ...
... quasars. So far we have succeeded in discovering two cluster-scale lensed quasars, SDSS J1004+4112 and SDSS J1029+2623. We used the Subaru Telescope for the discoveries and further follow-up observations of both of them. ...