Dark Matter, Dark Energy, and the Fate of the Universe
... galaxies together should be the same gas that makes up their stars. However, observations suggest otherwise. By carefully observing gravitational effects on matter that we can see, Dark matter is the name given to mass that such as stars or glowing clouds emits no detectable radiation; we infer its ...
... galaxies together should be the same gas that makes up their stars. However, observations suggest otherwise. By carefully observing gravitational effects on matter that we can see, Dark matter is the name given to mass that such as stars or glowing clouds emits no detectable radiation; we infer its ...
WHITE DWARFS AS A SOURCE OF CONSTRAINTS ON EXOTIC …
... Stars serves as a source of constraints on non standard ideas Some of these constraints turn out to be more stringent than laboratory ones First idea: weakly interacting particles (axions, Kaluza-Klein gravitons, etc.) produced in hot and dense stellar interior are steaming freely – in effect we ...
... Stars serves as a source of constraints on non standard ideas Some of these constraints turn out to be more stringent than laboratory ones First idea: weakly interacting particles (axions, Kaluza-Klein gravitons, etc.) produced in hot and dense stellar interior are steaming freely – in effect we ...
The Jansky Very Large Array – New Capabilities, New Science
... – VLA is sensitive to cold molecular gas traced by CO line emission, telling us how much fuel these galaxies have to form stars. – Wagg and Carilli are studying BR1202-0725: Princeton Colloquium 02 April 2013 ...
... – VLA is sensitive to cold molecular gas traced by CO line emission, telling us how much fuel these galaxies have to form stars. – Wagg and Carilli are studying BR1202-0725: Princeton Colloquium 02 April 2013 ...
A100H–Exploring the Universe: Dark Matter, Dark Energy Martin D
... Two types of experiments designed to look for WIMPS 1. Direct detection experiments Look for the scattering of dark matter particles off atomic nuclei within a detector The Axion Dark Matter eXperiment (ADMX) searches for axions 2. Indirect detection Look for the products of WIMP annihilation ...
... Two types of experiments designed to look for WIMPS 1. Direct detection experiments Look for the scattering of dark matter particles off atomic nuclei within a detector The Axion Dark Matter eXperiment (ADMX) searches for axions 2. Indirect detection Look for the products of WIMP annihilation ...
the biggest game in the cosmos
... must work together perfectly to form a single parabolic optical surface. No one has ever built such optics—and for good reason: Six of the seven mirrors will form the sides of the parabolic shape of the telescope as a whole. In the jargon of telescope-makers, these mirrors will be asymmetrical, sha ...
... must work together perfectly to form a single parabolic optical surface. No one has ever built such optics—and for good reason: Six of the seven mirrors will form the sides of the parabolic shape of the telescope as a whole. In the jargon of telescope-makers, these mirrors will be asymmetrical, sha ...
Transparencies - Rencontres de Moriond
... • The LSST Telescope and Camera • Dark Energy Science • Schedule and Plans ...
... • The LSST Telescope and Camera • Dark Energy Science • Schedule and Plans ...
F P US R
... two. Today, we know that the cosmic expansion is either accelerating or that our theory of gravity on large scales needs to be modified (DETF 2006). Either way, this is an exciting time for cosmology for which truly multi-wavelength campaigns are needed to achieve a deeper understanding. We can meas ...
... two. Today, we know that the cosmic expansion is either accelerating or that our theory of gravity on large scales needs to be modified (DETF 2006). Either way, this is an exciting time for cosmology for which truly multi-wavelength campaigns are needed to achieve a deeper understanding. We can meas ...
Strategy For Verification and Validation
... of other stars and characterize their physical properties, such as mass, diameter and orbital parameters. o NWO will survey nearby stars to determine earth. Combined with results from Kepler and Corot, a census of planets in the habitable zone will emerge. In addition, NWO can determine in the first ...
... of other stars and characterize their physical properties, such as mass, diameter and orbital parameters. o NWO will survey nearby stars to determine earth. Combined with results from Kepler and Corot, a census of planets in the habitable zone will emerge. In addition, NWO can determine in the first ...
Quo Vadis
... angle dependence, the showers of different E will reach their maxima on different distances from the telescope. • This means that their images will be smeared out depending on their angular deviation from the telescope‘s axis and the best focus plane of the telescope. Needs to be studied what is the ...
... angle dependence, the showers of different E will reach their maxima on different distances from the telescope. • This means that their images will be smeared out depending on their angular deviation from the telescope‘s axis and the best focus plane of the telescope. Needs to be studied what is the ...
TELESCOPES - GeoEcoGeo.com
... Students can illustrate the inner workings and parts of both types of optical telescopes and can explain why the image that is seen in an optical telescope is upside-down. Students understand the problems with building large lenses/mirrors. Students know which types of electromagnetic radiation are ...
... Students can illustrate the inner workings and parts of both types of optical telescopes and can explain why the image that is seen in an optical telescope is upside-down. Students understand the problems with building large lenses/mirrors. Students know which types of electromagnetic radiation are ...
Maksutov
... counterweight. These bubble levels can be used to point the telescope to zenith roughly. Check that the tracking is off during trimming the position otherwise the telescope will move away in few minutes. In this position the software Autoslew can be synched to park position 1 by clicking the house 1 ...
... counterweight. These bubble levels can be used to point the telescope to zenith roughly. Check that the tracking is off during trimming the position otherwise the telescope will move away in few minutes. In this position the software Autoslew can be synched to park position 1 by clicking the house 1 ...
Spectropolarimetry of the massive post
... Here, we address the issue by investigating the circumstellar ejecta of two yellow hypergiants, IRC +10420 and HD 179821. These objects are thought to have evolved off the post-Red Supergiant branch and are still surrounded by mass ejected during a previous mass losing phase. Only a few yellow hyper ...
... Here, we address the issue by investigating the circumstellar ejecta of two yellow hypergiants, IRC +10420 and HD 179821. These objects are thought to have evolved off the post-Red Supergiant branch and are still surrounded by mass ejected during a previous mass losing phase. Only a few yellow hyper ...
LSST and Dark Energy - University of Washington
... residual galaxy shear correlation Single 10 sq.deg field full depth Galaxy residual shear error is shape shot noise dominated. Averages down like 1/N fields to the systematic floor. Survey of 20,000 sq.deg will have N ~ 2000 fields in each red band r, i, z ...
... residual galaxy shear correlation Single 10 sq.deg field full depth Galaxy residual shear error is shape shot noise dominated. Averages down like 1/N fields to the systematic floor. Survey of 20,000 sq.deg will have N ~ 2000 fields in each red band r, i, z ...
1 Introduction - Wiley-VCH
... 1 Gyr after its formation. For this reason, galaxies can be used to probe the mass distribution at earlier and earlier epochs (z & 6), providing a link between the primordial universe, now well represented by the cosmic microwave background (CMB; z 1100), as traced by the Wilkinson Microwave Ani ...
... 1 Gyr after its formation. For this reason, galaxies can be used to probe the mass distribution at earlier and earlier epochs (z & 6), providing a link between the primordial universe, now well represented by the cosmic microwave background (CMB; z 1100), as traced by the Wilkinson Microwave Ani ...
Finding the Most Distant Quasars Using Bayesian Selection Methods
... more stars than quasars. Combining these considerations gives a clear, if qualitative, scheme for prioritising the candidates: identify those which are extreme outliers from the stellar distribution but are also consistent with being DQs. The remaining challenge is to encode these ideas in a quantit ...
... more stars than quasars. Combining these considerations gives a clear, if qualitative, scheme for prioritising the candidates: identify those which are extreme outliers from the stellar distribution but are also consistent with being DQs. The remaining challenge is to encode these ideas in a quantit ...
Project Description - SDSS-III
... produced these elements. APOGEE will increase the number of stars observed at high spectroscopic resolution and high signal-to-noise ratio by more than a factor of 100, an extraordinary advance in the state of the art. Together, SEGUE-2 and APOGEE will provide a picture of the Milky Way that is unpr ...
... produced these elements. APOGEE will increase the number of stars observed at high spectroscopic resolution and high signal-to-noise ratio by more than a factor of 100, an extraordinary advance in the state of the art. Together, SEGUE-2 and APOGEE will provide a picture of the Milky Way that is unpr ...
Understanding the Astrophysics of Galaxy Evolution: the role of
... The scientific development of the last decade which most impacted galaxy formation theory was the establishment of the ΛCDM concordance model of cosmology, in which the Universe consists of 70% dark energy, 25 % dark matter and 5 % ordinary matter. Before this happened, it was thought that galaxies ...
... The scientific development of the last decade which most impacted galaxy formation theory was the establishment of the ΛCDM concordance model of cosmology, in which the Universe consists of 70% dark energy, 25 % dark matter and 5 % ordinary matter. Before this happened, it was thought that galaxies ...
1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s
... was discovered on January 6, 2010, by the Lincoln Near-Earth Asteroid Research (LINEAR) sky survey. The object appeared so unusual in ground-based telescopic images that Hubble was used to take a close-up look. The observations show a bizarre X-pattern of filamentary structures near the point-like n ...
... was discovered on January 6, 2010, by the Lincoln Near-Earth Asteroid Research (LINEAR) sky survey. The object appeared so unusual in ground-based telescopic images that Hubble was used to take a close-up look. The observations show a bizarre X-pattern of filamentary structures near the point-like n ...
investigation of the 0.84-m telescope guiding at the oan-spm
... servations. However, telescope jumps have a strong influence on stellar photometry. Figure 5 shows how the light flux is changing during the jump. One can see that the jump at the beginning is so big that the star disappears from the field of view. Then the star comes back, but after some time it di ...
... servations. However, telescope jumps have a strong influence on stellar photometry. Figure 5 shows how the light flux is changing during the jump. One can see that the jump at the beginning is so big that the star disappears from the field of view. Then the star comes back, but after some time it di ...
Measurement of the Polarization of the Cosmic Microwave Background Byron J. Philhour
... Figure 1.2: Q and U as measured by idealized polarization detectors aligned as shown. where I refers to the intensity, Q and U describe the linear polarization and depend on the definition of the (x, y) coordinate system, and V describes the circular polarization of the photon. The Stokes parameters ...
... Figure 1.2: Q and U as measured by idealized polarization detectors aligned as shown. where I refers to the intensity, Q and U describe the linear polarization and depend on the definition of the (x, y) coordinate system, and V describes the circular polarization of the photon. The Stokes parameters ...
Document
... the advent of deep and/or wide galaxy surveys carried out at many different wavelengths has revolutionized our understanding in this aspect. One example of the achievements is the so-called Madau-diagram, which shows the evolution of the SFR density of the universe as a function of look-back time (L ...
... the advent of deep and/or wide galaxy surveys carried out at many different wavelengths has revolutionized our understanding in this aspect. One example of the achievements is the so-called Madau-diagram, which shows the evolution of the SFR density of the universe as a function of look-back time (L ...
Galaxy Hunters Article, Cosmology Information, First Star Facts
... couldn't begin clumping until the universe had cooled. Dark matter, by contrast, was plentiful and all but impervious to every force but gravity. It could coalesce almost immediately after the universe's birth, giving ordinary matter a foothold to form galaxies, even as cosmic expansion tried to pul ...
... couldn't begin clumping until the universe had cooled. Dark matter, by contrast, was plentiful and all but impervious to every force but gravity. It could coalesce almost immediately after the universe's birth, giving ordinary matter a foothold to form galaxies, even as cosmic expansion tried to pul ...
sdss-fnal - Sloan Digital Sky Survey
... Size of the archived data • 40,000 square degrees is 2 trillion pixels • One band: 4 Terabytes • Multi-wavelength: 10-100 Terabytes • Time dimension: few Petabytes The development of • new archival methods • new analysis tools • new standards (metadata, interchange formats) Hardware/networking requi ...
... Size of the archived data • 40,000 square degrees is 2 trillion pixels • One band: 4 Terabytes • Multi-wavelength: 10-100 Terabytes • Time dimension: few Petabytes The development of • new archival methods • new analysis tools • new standards (metadata, interchange formats) Hardware/networking requi ...
Telescopes in History
... 100 in (2.5 m) Hooker Telescope on MOUNT WILSON, which was the largest in the world from 1918 until 1948, was the first instrument capable of seeing objects that formed early in the history of the Universe. The 200 in (5 m) Hale Telescope on Mount PALOMAR, completed in 1948, was used for photographi ...
... 100 in (2.5 m) Hooker Telescope on MOUNT WILSON, which was the largest in the world from 1918 until 1948, was the first instrument capable of seeing objects that formed early in the history of the Universe. The 200 in (5 m) Hale Telescope on Mount PALOMAR, completed in 1948, was used for photographi ...
Sample pages 1 PDF
... if it would be observed from ‘above’ (face-on). This image, observed with the VLT, has a size of 6:0 8 6:0 8, corresponding to a linear size of 60 kpc at its distance of 30 Mpc. If this was our Galaxy, our Sun would be located at a distance of 8.0 kpc from the center, orbiting around it at a speed ...
... if it would be observed from ‘above’ (face-on). This image, observed with the VLT, has a size of 6:0 8 6:0 8, corresponding to a linear size of 60 kpc at its distance of 30 Mpc. If this was our Galaxy, our Sun would be located at a distance of 8.0 kpc from the center, orbiting around it at a speed ...