Lecture 18, Gravitational Waves, Future Missions and
... - IRIS: near-infrared IFU spectrometer with imaging capability - IRMS: near-infrared spectrometer with imaging capability The near-IR instruments will use the AO system, and the plan is to get diffraction limited resolution (~10 milliarcsecs). Science (some): first galaxies, epoch of reionization, s ...
... - IRIS: near-infrared IFU spectrometer with imaging capability - IRMS: near-infrared spectrometer with imaging capability The near-IR instruments will use the AO system, and the plan is to get diffraction limited resolution (~10 milliarcsecs). Science (some): first galaxies, epoch of reionization, s ...
Scientific American`s Ask the Experts
... craft to encounter an asteroid while it was passing through the asteroid belt on its way to Jupiter. But it took some effort to find an object that was located even roughly along Galileo’s path. Special targeting was required to reach this object, but the result was the first close-up view of an aster ...
... craft to encounter an asteroid while it was passing through the asteroid belt on its way to Jupiter. But it took some effort to find an object that was located even roughly along Galileo’s path. Special targeting was required to reach this object, but the result was the first close-up view of an aster ...
Lecture Eight (Powerpoint format) - Flash
... three years on the Hubble Space Telescope. The image covers roughly 1000 AU. The outflow appears to be highly sporadic, but it remains unclear how it is being powered or even which binary member is powering it. ...
... three years on the Hubble Space Telescope. The image covers roughly 1000 AU. The outflow appears to be highly sporadic, but it remains unclear how it is being powered or even which binary member is powering it. ...
Powerpoint
... These are Brown Dwarfs or failed stars. Very difficult to detect because so faint. First seen in 1994 with Palomar 200”. How many are there? ...
... These are Brown Dwarfs or failed stars. Very difficult to detect because so faint. First seen in 1994 with Palomar 200”. How many are there? ...
Two new transiting extra-solar planets discovered with SuperWASP
... Two new transiting extra-solar planets discovered with SuperWASP and SOPHIE A team of British, French and Swiss astronomers has just discovered two new transiting extra-solar planets. This double discovery was made using the British SuperWASP cameras at La Palma, Spain, and the new SOPHIE spectrogra ...
... Two new transiting extra-solar planets discovered with SuperWASP and SOPHIE A team of British, French and Swiss astronomers has just discovered two new transiting extra-solar planets. This double discovery was made using the British SuperWASP cameras at La Palma, Spain, and the new SOPHIE spectrogra ...
Properties of Stars - Indiana State University
... – The system is still used today and units of measurement are called apparent magnitudes to emphasize how bright a star looks to an observer ...
... – The system is still used today and units of measurement are called apparent magnitudes to emphasize how bright a star looks to an observer ...
Transcript - Chandra X
... bottom of the scale. The lower left quadrant of the diagram contains hot and dim stars; the upper left quadrant shows hot and bright stars, the upper right quadrant cool and bright, and the lower right quadrant cool and dim. The major branches (locations) of stars are: main sequence, white dwarfs, s ...
... bottom of the scale. The lower left quadrant of the diagram contains hot and dim stars; the upper left quadrant shows hot and bright stars, the upper right quadrant cool and bright, and the lower right quadrant cool and dim. The major branches (locations) of stars are: main sequence, white dwarfs, s ...
Astronomy Glossary Key
... According to many astronomers, there just is not enough visible matter in the universe to explain how it behaves. This has lead them to believe there is more matter out there that cannot be seen. This is what they call “dark matter”. The electromagnetic spectrum is all the waves in the universe. Onl ...
... According to many astronomers, there just is not enough visible matter in the universe to explain how it behaves. This has lead them to believe there is more matter out there that cannot be seen. This is what they call “dark matter”. The electromagnetic spectrum is all the waves in the universe. Onl ...
Spiral Arms - Harry Kroto
... Winding Problem: Imagine that the arms are physical and we start them out in a line. Now we watch them wrap into a spiral due to the fact that the inner parts will revolve around the Galactic center faster than the outer parts. We can see that a nice spiral forms very quickly. The problem is that th ...
... Winding Problem: Imagine that the arms are physical and we start them out in a line. Now we watch them wrap into a spiral due to the fact that the inner parts will revolve around the Galactic center faster than the outer parts. We can see that a nice spiral forms very quickly. The problem is that th ...
Birth of Elements
... The underlying process by which elements are synthesised in stars is nuclear fusion. A large cloud of matter contracts under its own gravitational pull and once the density and temperature of the material in the core of the cloud reaches a critical value, fusion begins. Now, different atomic nuclei ...
... The underlying process by which elements are synthesised in stars is nuclear fusion. A large cloud of matter contracts under its own gravitational pull and once the density and temperature of the material in the core of the cloud reaches a critical value, fusion begins. Now, different atomic nuclei ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... ‘The burst of the century’ “This was the burst of the century!” exclaimed James A. Wren, an engineer at Los Alamos National Laboratory and co-author of one of the papers. Indeed, GRB 130427A (as it is now called) was the most powerful gamma-ray burst and the second-brightest optical flash measured i ...
... ‘The burst of the century’ “This was the burst of the century!” exclaimed James A. Wren, an engineer at Los Alamos National Laboratory and co-author of one of the papers. Indeed, GRB 130427A (as it is now called) was the most powerful gamma-ray burst and the second-brightest optical flash measured i ...
Staring Back to Cosmic Dawn - UC-HiPACC
... More cold gas flowed along the dark matter filaments into galactic disks, where it became gravitationally unstable and formed clumps. Nearby galaxies have comparatively little gas, so star-forming clumps of gas generally won’t grow beyond about a million solar masses. But in early galaxies, the grav ...
... More cold gas flowed along the dark matter filaments into galactic disks, where it became gravitationally unstable and formed clumps. Nearby galaxies have comparatively little gas, so star-forming clumps of gas generally won’t grow beyond about a million solar masses. But in early galaxies, the grav ...
The Sculptor dwarf irregular galaxy SDIG: present and past
... the spectrum of the core of the blue compact dwarf IIZw40 may be dominated by the light of young stars and nebular emission, with less than 25 per cent of the light being attributable to an evolved population. Whether or not an old population exists in the least luminous star-forming dwarfs is unlik ...
... the spectrum of the core of the blue compact dwarf IIZw40 may be dominated by the light of young stars and nebular emission, with less than 25 per cent of the light being attributable to an evolved population. Whether or not an old population exists in the least luminous star-forming dwarfs is unlik ...
Introduction and first data set
... The two blue spots are diametrically opposite on the sky (and hence can never both be seen at the same time, except by astronauts). They are used as the origin of the celestial coordinate system: Declination: +90 for northern blue spot, 0 for the celestial equator. Right Ascension: 0 to 360. Zero ax ...
... The two blue spots are diametrically opposite on the sky (and hence can never both be seen at the same time, except by astronauts). They are used as the origin of the celestial coordinate system: Declination: +90 for northern blue spot, 0 for the celestial equator. Right Ascension: 0 to 360. Zero ax ...
Time and Diurnal Motion 1a. The Earth Is Flat
... (June 21) in the town of Syene in southern Egypt (today Aswan, near a huge dam on the river Nile) the noontime Sun was reflected in a deep well, meaning that it was right overhead, at ...
... (June 21) in the town of Syene in southern Egypt (today Aswan, near a huge dam on the river Nile) the noontime Sun was reflected in a deep well, meaning that it was right overhead, at ...
1/20/09 301 Physics Chapter 12 The Family of Stars Triangulation
... • A spectrum also can reveal a star’s composition, temperature, luminosity, velocity in space, rotation speed, and other properties • On certain occasions, it may reveal mass and ...
... • A spectrum also can reveal a star’s composition, temperature, luminosity, velocity in space, rotation speed, and other properties • On certain occasions, it may reveal mass and ...
81 KB - CSIRO Publishing
... Milky Way ‘dwarf spheroidal galaxies’ and ‘dwarf elliptical galaxies’ are not galaxies. Hosts a Satellite Stellar System Evidence that a galaxy dominates its environment could come from the presence of smaller satellite stellar systems, such as dwarf galaxies (for large galaxies) or globular clust ...
... Milky Way ‘dwarf spheroidal galaxies’ and ‘dwarf elliptical galaxies’ are not galaxies. Hosts a Satellite Stellar System Evidence that a galaxy dominates its environment could come from the presence of smaller satellite stellar systems, such as dwarf galaxies (for large galaxies) or globular clust ...
Ch13_Lecture - Chemistry at Winthrop University
... Temperature’s Effect on Spectra • Consequently, absorption lines will be present or absent depending on the presence or absence of an electron at the right energy level and this is very much dependent on temperature • Adjusting for temperature, a star’s composition can be found – interestingly, vir ...
... Temperature’s Effect on Spectra • Consequently, absorption lines will be present or absent depending on the presence or absence of an electron at the right energy level and this is very much dependent on temperature • Adjusting for temperature, a star’s composition can be found – interestingly, vir ...
UNIVERSITY OF BRISTOL
... How do the Hertzsprung-Russell diagrams of simple stellar populations (with all their stars formed at the same epoch) vary as the system ages? How is this reflected in the overall photometric properties of the system? (b) A globular cluster has a mass of 106 solar masses and a mass-to-light ratio of ...
... How do the Hertzsprung-Russell diagrams of simple stellar populations (with all their stars formed at the same epoch) vary as the system ages? How is this reflected in the overall photometric properties of the system? (b) A globular cluster has a mass of 106 solar masses and a mass-to-light ratio of ...
Lecture 12
... 100 yrs ago (30pc~100 lyr). The light from the Andromeda galaxy left it about 1.5Myr ago, and the light from something in the Virgo Cluster about 65 Myr ago (about when the dinosaurs were killed). We’ll see we think the Universe is ~14Gyr old, so light from an object >14Glyr (5000Mpc) away will not ...
... 100 yrs ago (30pc~100 lyr). The light from the Andromeda galaxy left it about 1.5Myr ago, and the light from something in the Virgo Cluster about 65 Myr ago (about when the dinosaurs were killed). We’ll see we think the Universe is ~14Gyr old, so light from an object >14Glyr (5000Mpc) away will not ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.