497 Autostar Manual for DS-2090AT-TC and DS-2102AT-TC
... What is an elliptical galaxy? How far away is the Sun? Expand your knowledge of astronomy by displaying terms and definitions, and other information. ...
... What is an elliptical galaxy? How far away is the Sun? Expand your knowledge of astronomy by displaying terms and definitions, and other information. ...
Dust and molecular gas in the most distant quasars
... • How the most massive black hole – bulge systems evolve at their early stage. • Can we see active building via massive star formation co-eval with rapid black hole accretion? • Dynamical mass; • Black hole – bulge ratios; ...
... • How the most massive black hole – bulge systems evolve at their early stage. • Can we see active building via massive star formation co-eval with rapid black hole accretion? • Dynamical mass; • Black hole – bulge ratios; ...
Shape of a slowly rotating star measured by asteroseismology
... implies that KIC 11145123 is a terminal-age main sequence A star. It has a small convective core (r < 0.04 R), in which the fraction of hydrogen content is less than 5%. Outside this convective core, energy is transported by radiation up to the surface layers of the star. In the top few thousand kil ...
... implies that KIC 11145123 is a terminal-age main sequence A star. It has a small convective core (r < 0.04 R), in which the fraction of hydrogen content is less than 5%. Outside this convective core, energy is transported by radiation up to the surface layers of the star. In the top few thousand kil ...
Star-D_Teacher_Guide - The University of Texas at Dallas
... A globe or world map works well for this portion of the activity. If each group of students has a globe, ask the students to take a few minutes to choose one or more locations to put the Sun on the model. Query one or more groups for their locations, and ask the rest of the class if they agree or di ...
... A globe or world map works well for this portion of the activity. If each group of students has a globe, ask the students to take a few minutes to choose one or more locations to put the Sun on the model. Query one or more groups for their locations, and ask the rest of the class if they agree or di ...
PHYS3380_111615_bw - The University of Texas at Dallas
... supergiant presumed to have a mass of about 15 - 20 solar masses. - required some revisions to models of high mass stellar evolution, which had suggested that supernovae would result from red supergiants. Now believe star was chemically poor in elements heavier than He - contracted and heated up aft ...
... supergiant presumed to have a mass of about 15 - 20 solar masses. - required some revisions to models of high mass stellar evolution, which had suggested that supernovae would result from red supergiants. Now believe star was chemically poor in elements heavier than He - contracted and heated up aft ...
Lick Survey 1 million galaxies!
... 20 TB raw imaging data pipeline 100,000,000 galaxies 50,000,000 stars Southern Galactic Cap multiple scans (> 30 times) of one stripe another 20 TB of raw imaging data detect fainter, variable, and moving objects Continuous data rate of 8 Mbytes/sec ...
... 20 TB raw imaging data pipeline 100,000,000 galaxies 50,000,000 stars Southern Galactic Cap multiple scans (> 30 times) of one stripe another 20 TB of raw imaging data detect fainter, variable, and moving objects Continuous data rate of 8 Mbytes/sec ...
Milky Way Bulge
... • Discovered in 1994 from star counts + radial velocity study of K,M giants towards Galactic Center. • ~5 x 109 M • ~17 kpc beyond GC, and currently falling into disk ...
... • Discovered in 1994 from star counts + radial velocity study of K,M giants towards Galactic Center. • ~5 x 109 M • ~17 kpc beyond GC, and currently falling into disk ...
astro-ph/0301519 PDF
... fluxes, no direct measurements of element abundances have been made for these stars. Consequently, we have carried out a survey of a sample of very hot DA white dwarfs with the aim of making the first measurements of their photospheric composition. Using a new grid of non-LTE, heavy element-rich mod ...
... fluxes, no direct measurements of element abundances have been made for these stars. Consequently, we have carried out a survey of a sample of very hot DA white dwarfs with the aim of making the first measurements of their photospheric composition. Using a new grid of non-LTE, heavy element-rich mod ...
Astronomical Distance Determination
... E.g. the motion of the sun around the center of the Galaxy, 250 km/s, corresponds to 53 AU/yr. Most of the nearby stars are moving along with us, but not precisely. Barnard’s star “moves” 10.25 arc sec per year and hundreds of other stars move over 1 arc sec per year. The sun’s average drift over a ...
... E.g. the motion of the sun around the center of the Galaxy, 250 km/s, corresponds to 53 AU/yr. Most of the nearby stars are moving along with us, but not precisely. Barnard’s star “moves” 10.25 arc sec per year and hundreds of other stars move over 1 arc sec per year. The sun’s average drift over a ...
Big Bang Theory
... Introduction: Have you ever listened to the siren of an ambulance? As the ambulance passes by, the pitch of its siren gets lower. This occurs because of the Doppler shift. Sound waves are compressed as the ambulance approaches, causing the pitch to be higher. As the ambulance drives away, the sound ...
... Introduction: Have you ever listened to the siren of an ambulance? As the ambulance passes by, the pitch of its siren gets lower. This occurs because of the Doppler shift. Sound waves are compressed as the ambulance approaches, causing the pitch to be higher. As the ambulance drives away, the sound ...
129 DYNAMICAL STREAMS IN THE SOLAR NEIGHBOURHOOD B
... alone is not sufficient to create the observed streams. Nevertheless, De Simone et al. (2004) have shown that the structure of the local distribution function could well be due to a lumpy potential related to the presence of strong transient spiral waves. Besides those simulations, a recent model of ...
... alone is not sufficient to create the observed streams. Nevertheless, De Simone et al. (2004) have shown that the structure of the local distribution function could well be due to a lumpy potential related to the presence of strong transient spiral waves. Besides those simulations, a recent model of ...
Is Pluto Real - Jesseca Rough
... The Plan: My nieces’ question was simple in the sense of an English statement, “Is Pluto Real?” But to prove something to a nine year old is very difficult and would require me to do some serious research. I thought I would prove Pluto’s existence using pictures, but since pictures and diagrams fou ...
... The Plan: My nieces’ question was simple in the sense of an English statement, “Is Pluto Real?” But to prove something to a nine year old is very difficult and would require me to do some serious research. I thought I would prove Pluto’s existence using pictures, but since pictures and diagrams fou ...
A search for a new class of pulsating DA white dwarf stars in the DB
... the CoRoT satellite which is in orbit and collecting data, and from the Kepler mission which is scheduled for launch (as of the time of this writing) in early 2009. Until those data sets become reality, the greatest successes of asteroseismology are arguably in the study of pulsating white dwarf sta ...
... the CoRoT satellite which is in orbit and collecting data, and from the Kepler mission which is scheduled for launch (as of the time of this writing) in early 2009. Until those data sets become reality, the greatest successes of asteroseismology are arguably in the study of pulsating white dwarf sta ...
5.9MB Word - Clydeview Academy
... One twin stays at home, the other goes on a journey through space travelling close to the speed of light. What happens? Time runs more slowly for the twin who goes into space, so when they return they should be younger than their twin who stayed at home. However – space travel requires acceleration. ...
... One twin stays at home, the other goes on a journey through space travelling close to the speed of light. What happens? Time runs more slowly for the twin who goes into space, so when they return they should be younger than their twin who stayed at home. However – space travel requires acceleration. ...
WORD - Astrophysics
... overcome crowding, and a 100m class telescope is required to study the brighter galaxies at their half-light radius - without it work is limited to the less representative outer regions where crowding is less of an issue. The more luminous elliptical ...
... overcome crowding, and a 100m class telescope is required to study the brighter galaxies at their half-light radius - without it work is limited to the less representative outer regions where crowding is less of an issue. The more luminous elliptical ...
Evidence for micrometeoroid damage in the pn
... This is roughly 108 times more than we would expect the detector through the X-ray mirror system. This is not from a 6 MeV alpha particle and about 106 more than possible on straight paths but by scattering at the miran iron atom of 1 GeV (see Bragg curves simulated with ror surface. In principle, a ...
... This is roughly 108 times more than we would expect the detector through the X-ray mirror system. This is not from a 6 MeV alpha particle and about 106 more than possible on straight paths but by scattering at the miran iron atom of 1 GeV (see Bragg curves simulated with ror surface. In principle, a ...
Name: Astronomy Lab: The Hertzsprung-Russell (H
... the astronomer. Astronomy’s major goal is an understanding of the nature of stars; the large collection of stars called galaxies; and ultimately, the universe itself. For example, in the 20th century, it has become apparent that stars change or evolve over time, and it is appropriate to talk in term ...
... the astronomer. Astronomy’s major goal is an understanding of the nature of stars; the large collection of stars called galaxies; and ultimately, the universe itself. For example, in the 20th century, it has become apparent that stars change or evolve over time, and it is appropriate to talk in term ...
Astrophysics - Cathkin High School
... The development of what we know about the Earth, Solar System and Universe is a fascinating study in its own right. From earliest times Man has wondered at and speculated over the ‘Nature of the Heavens’. It is hardly surprising that most people (until around 1500 A.D.) thought that the Sun revolved ...
... The development of what we know about the Earth, Solar System and Universe is a fascinating study in its own right. From earliest times Man has wondered at and speculated over the ‘Nature of the Heavens’. It is hardly surprising that most people (until around 1500 A.D.) thought that the Sun revolved ...
On Artificially Creating Solar Eclipses Abstract
... 1. Introduction: Solar eclipse is most spectacular example of the validity of celestial mechanics. It is an eloquent practical demonstration of the clockwork of solar system at work! It occurs when the moon arrives in between sun and earth during its motion. During total solar eclipse for a short pe ...
... 1. Introduction: Solar eclipse is most spectacular example of the validity of celestial mechanics. It is an eloquent practical demonstration of the clockwork of solar system at work! It occurs when the moon arrives in between sun and earth during its motion. During total solar eclipse for a short pe ...
chapter 26 instructor notes
... The scale height derived for the thick disk and thin disk is used to infer characteristics about the temperature of the gas from which the stars formed originally. The stars orbiting the Galactic centre appear to be blue in colour, but are not necessarily young. Demarque & Virani (2007, A&A, 461, 65 ...
... The scale height derived for the thick disk and thin disk is used to infer characteristics about the temperature of the gas from which the stars formed originally. The stars orbiting the Galactic centre appear to be blue in colour, but are not necessarily young. Demarque & Virani (2007, A&A, 461, 65 ...
AstroMaster Series Telescopes
... indoor the first time so that it is easy to identify the various parts and familiarize yourself with the correct assembly procedure before attempting it outdoor. Each AstroMaster comes in one box. The pieces in the box are – optical tube with attached sky pointer and tube rings (114 EQ only), CG-2 e ...
... indoor the first time so that it is easy to identify the various parts and familiarize yourself with the correct assembly procedure before attempting it outdoor. Each AstroMaster comes in one box. The pieces in the box are – optical tube with attached sky pointer and tube rings (114 EQ only), CG-2 e ...
Astro Midterm Review Part II: Ch 2
... D) its ability to focus more than just visible light for imaging E) its ability to distinguish two adjacent objects close together in the sky ...
... D) its ability to focus more than just visible light for imaging E) its ability to distinguish two adjacent objects close together in the sky ...
NASA`s IRIS Telescope Offers First Glimpse of Sun`s Mysterious
... maximum all week. This and other weak, long-lasting July showers with radiants in the southern sky increase the chance that any meteor you see will be flying out of the south. See article. Saturday, July 27 · With the Moon now gone from the evening sky, try exploring through the nest of galaxies ove ...
... maximum all week. This and other weak, long-lasting July showers with radiants in the southern sky increase the chance that any meteor you see will be flying out of the south. See article. Saturday, July 27 · With the Moon now gone from the evening sky, try exploring through the nest of galaxies ove ...
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.