The significant contribution of minor mergers to the cosmic star
... Model likelihoods are calculated from the values of χ2 , and 1D probability distributions for free parameters like stellar mass are constructed via marginalisation. The median of the 1D distribution provides a best estimate for the parameter in question, with the 16th and 84th percentile values (whi ...
... Model likelihoods are calculated from the values of χ2 , and 1D probability distributions for free parameters like stellar mass are constructed via marginalisation. The median of the 1D distribution provides a best estimate for the parameter in question, with the 16th and 84th percentile values (whi ...
CONSTELLATIONS
... Autumnal Equinox / September 21 THE PLANETS As you have seen, the dashed line on the planisphere marks the ecliptic. As our Earth moves around in its orbit, the Sun, the Moon, and the planets also appear along this line. The ecliptic therefore represents the plane of the solar system. Of the nine pl ...
... Autumnal Equinox / September 21 THE PLANETS As you have seen, the dashed line on the planisphere marks the ecliptic. As our Earth moves around in its orbit, the Sun, the Moon, and the planets also appear along this line. The ecliptic therefore represents the plane of the solar system. Of the nine pl ...
Nature template - PC Word 97
... at 7 mm wavelength. The flatness of the radio spectrum down to ~0.7 mm wavelength20 implies that the jet is a self-similar cone with constant Lorentz factor downstream of the point where the jet cross-section becomes ~ 0.1 times its value at the 7 mm core21. Although the cross-sectional radius of th ...
... at 7 mm wavelength. The flatness of the radio spectrum down to ~0.7 mm wavelength20 implies that the jet is a self-similar cone with constant Lorentz factor downstream of the point where the jet cross-section becomes ~ 0.1 times its value at the 7 mm core21. Although the cross-sectional radius of th ...
A bright, dust-obscured, millimetre
... explanation of the high apparent brightness. Due to the low spatial resolution of these single-dish ASTE observations (30 arcsec FWHM at 1.1 mm) and the astrometric uncertainty, however, we must consider and dismiss other alternatives for the source of the millimetre emission including Galactic star ...
... explanation of the high apparent brightness. Due to the low spatial resolution of these single-dish ASTE observations (30 arcsec FWHM at 1.1 mm) and the astrometric uncertainty, however, we must consider and dismiss other alternatives for the source of the millimetre emission including Galactic star ...
3 The concept of diffraction limit
... becomes less of a deterrent and this constitutes the near-field optics. For evanescent waves, the amplitudes decay rapidly at least in one of the spacial dimensions, thereby making the respective propagation constant complex in general. Thus the propagation constants in the transverse directions, be ...
... becomes less of a deterrent and this constitutes the near-field optics. For evanescent waves, the amplitudes decay rapidly at least in one of the spacial dimensions, thereby making the respective propagation constant complex in general. Thus the propagation constants in the transverse directions, be ...
Influence of Opacity on the Pulsational Stability Of Massive Stars
... gas. The four successive terms inside the double bracket for K represent essentially the following contributions: (1) scattering by free electrons, (2) free-free absorption by hydrogen, (3) free-free absorption by helium, and (4) bound-free and bound-bound absorption by metals. Christy has discussed ...
... gas. The four successive terms inside the double bracket for K represent essentially the following contributions: (1) scattering by free electrons, (2) free-free absorption by hydrogen, (3) free-free absorption by helium, and (4) bound-free and bound-bound absorption by metals. Christy has discussed ...
Phys405-Chapter5
... Note that it is common practice in laser spectroscopy to quote frequency difference rather than wavelength difference for line splitting. For example, with a central wavelength of about 780 nm, the hyperfine splitting of the 52S1/2 ground state of 85Rb in table V-1 corresponds to a relative waveleng ...
... Note that it is common practice in laser spectroscopy to quote frequency difference rather than wavelength difference for line splitting. For example, with a central wavelength of about 780 nm, the hyperfine splitting of the 52S1/2 ground state of 85Rb in table V-1 corresponds to a relative waveleng ...
MAIN SEQUENCE STARS, Red Giants and White Dwarfs
... grown, causing the core radius to rise, thus, yielding a decline in Tc to just about 108 K. o Now He burns smoothly in the core -- producing the He BURNING MAIN SEQUENCE -- which is visible on an H-R diagram as the HORIZONTAL BRANCH (lower L but higher Ts than during the He flash). o Stars are again ...
... grown, causing the core radius to rise, thus, yielding a decline in Tc to just about 108 K. o Now He burns smoothly in the core -- producing the He BURNING MAIN SEQUENCE -- which is visible on an H-R diagram as the HORIZONTAL BRANCH (lower L but higher Ts than during the He flash). o Stars are again ...
First mapping of the area surrounding our solar system
... d'Aéronomie," has created a 3-D reconstruction of the outline of the local interstellar bubble. This is a gigantic cavity in our galaxy, measuring approximately 1,000 light-years in diameter, from which dense gases and dust are absent. Our sun is currently crossing this nearly empty space on its pat ...
... d'Aéronomie," has created a 3-D reconstruction of the outline of the local interstellar bubble. This is a gigantic cavity in our galaxy, measuring approximately 1,000 light-years in diameter, from which dense gases and dust are absent. Our sun is currently crossing this nearly empty space on its pat ...
Mechanical mapping with chemical specificity by confocal Brillouin
... A freshly excised oesophageal biopsy sample was collected during routine endoscopy, mounted on acetate paper and snap frozen in liquid nitrogen. It was then cryosectioned, mounted on a calcium fluoride substrate and stored in a freezer (–80°C) until required for analysis. It was then removed for the ...
... A freshly excised oesophageal biopsy sample was collected during routine endoscopy, mounted on acetate paper and snap frozen in liquid nitrogen. It was then cryosectioned, mounted on a calcium fluoride substrate and stored in a freezer (–80°C) until required for analysis. It was then removed for the ...
A binary merger origin for inflated hot Jupiter planets
... sequence, it is difficult to estimate their ages, but typically they are thought to be several Gyr old, and if their planets have the same age, they should have had enough time to evolve to their degeneracy dominated configuration where R → R0 . The advent of wide area transit surveys from the ground ...
... sequence, it is difficult to estimate their ages, but typically they are thought to be several Gyr old, and if their planets have the same age, they should have had enough time to evolve to their degeneracy dominated configuration where R → R0 . The advent of wide area transit surveys from the ground ...
Kosovichev - Physics - New Jersey Institute of Technology
... New Jersey Institute of Technology College of Science and Liberal Arts Department of Physics Introductory Astronomy and Cosmology (Phys 202) Learning Objectives and Outcomes Comprehend our place in the universe. Describe the size of the universe, and relate this size to everyday human experience. D ...
... New Jersey Institute of Technology College of Science and Liberal Arts Department of Physics Introductory Astronomy and Cosmology (Phys 202) Learning Objectives and Outcomes Comprehend our place in the universe. Describe the size of the universe, and relate this size to everyday human experience. D ...
File
... Sharjah Indian School, Sharjah – Boys’ Wing Assignments on Ray Optics (Class XII) 1. A light wave enters from air into glass. How will1the following be affected? i) energy of the wave & ii) frequency of the wave. 2. A man is looking vertically down a tank full of water. The depth of tank appears to ...
... Sharjah Indian School, Sharjah – Boys’ Wing Assignments on Ray Optics (Class XII) 1. A light wave enters from air into glass. How will1the following be affected? i) energy of the wave & ii) frequency of the wave. 2. A man is looking vertically down a tank full of water. The depth of tank appears to ...
lec-life-main-sequen..
... This reaction starts with protons (bare hydrogen nuclei) and so is called the proton-proton chain. If you combine all of the equations for the entire chain, you find that six protons end up producing a helium nucleus, two positrons, two gamma rays and two neutrinos, with two left-over protons which ...
... This reaction starts with protons (bare hydrogen nuclei) and so is called the proton-proton chain. If you combine all of the equations for the entire chain, you find that six protons end up producing a helium nucleus, two positrons, two gamma rays and two neutrinos, with two left-over protons which ...
Cosmology Notes
... When Lambda was adjusted to fit the known expansion acceleration it accounted for about 70% of the “stuff” in the universe. This was also the value required for the known flatness of the universe ...
... When Lambda was adjusted to fit the known expansion acceleration it accounted for about 70% of the “stuff” in the universe. This was also the value required for the known flatness of the universe ...
swire
... • Spatial distribution and clustering of evolved galaxies, starbursts and AGN, and the evolution of their clustering • Evolutionary relationship between galaxies and AGN, and the contribution of AGN accretion energy to the cosmic backgrounds ...
... • Spatial distribution and clustering of evolved galaxies, starbursts and AGN, and the evolution of their clustering • Evolutionary relationship between galaxies and AGN, and the contribution of AGN accretion energy to the cosmic backgrounds ...
MIRS - A Map of the Ice Regions in the Solar System J. Agarwal1, T
... be done with the Hubble Space Telescope, for example) We propose here a low cost mission to place a has the advantage of much greater sensitivity. The outdedicated platform into a fast reachable orbit (e.g. inclined orbit, or Lagrangian point) which can operate for a long duration period with the go ...
... be done with the Hubble Space Telescope, for example) We propose here a low cost mission to place a has the advantage of much greater sensitivity. The outdedicated platform into a fast reachable orbit (e.g. inclined orbit, or Lagrangian point) which can operate for a long duration period with the go ...
Effects of color superconductivity on the nucleation of
... We have explored the effect of different hyperon couplings on the critical mass and on the stellar conversion energy, finding that the increase of the hyperon coupling shift the bulk transition point for quark deconfinement to higher densities and makes the conversion to quark stars less likely. For ...
... We have explored the effect of different hyperon couplings on the critical mass and on the stellar conversion energy, finding that the increase of the hyperon coupling shift the bulk transition point for quark deconfinement to higher densities and makes the conversion to quark stars less likely. For ...
Gamma Ray Bursts: The biggest bang since the big one!
... • Outer layers blasted across interstellar space • Contains all heavy elements needed for life (C, N, O, Fe etc) • Where slams into molecular gas then triggers next generation of stars/planets(/life?) ...
... • Outer layers blasted across interstellar space • Contains all heavy elements needed for life (C, N, O, Fe etc) • Where slams into molecular gas then triggers next generation of stars/planets(/life?) ...
A Dozen Colliding-Wind X-Ray Binaries in the Star - UvA-DARE
... We analyzed archival Chandra X-ray observations of the central portion of the 30 Doradus region in the Large Magellanic Cloud. The image contains 20 X-ray point sources with luminosities between 5 1032 and 2 1035 ergs s1 (0.2–3.5 keV). A dozen sources have bright WN Wolf-Rayet or spectral type ...
... We analyzed archival Chandra X-ray observations of the central portion of the 30 Doradus region in the Large Magellanic Cloud. The image contains 20 X-ray point sources with luminosities between 5 1032 and 2 1035 ergs s1 (0.2–3.5 keV). A dozen sources have bright WN Wolf-Rayet or spectral type ...
Biology 3235: Resolution and magnification of a light microscopes
... Biology 3235: Resolution and magnification of a light microscopes... The total magnification afforded by a microscope is equal to the product of the magnifications provided by the objective used and the oculars. For example, a 100× objective used with 10× oculars gives a total magnification of 1000× ...
... Biology 3235: Resolution and magnification of a light microscopes... The total magnification afforded by a microscope is equal to the product of the magnifications provided by the objective used and the oculars. For example, a 100× objective used with 10× oculars gives a total magnification of 1000× ...
Moed A
... 5. 6 beam MOT in two reference frames - 10 points A MOT works by optically cooling atoms (via recoil of photon absorption) in a linearly inhomogeneous magnetic field B = B(z) ≈ Az, such as that formed by a magnetic quadrupole field. While the light, which is red detuned to interact with atoms moving ...
... 5. 6 beam MOT in two reference frames - 10 points A MOT works by optically cooling atoms (via recoil of photon absorption) in a linearly inhomogeneous magnetic field B = B(z) ≈ Az, such as that formed by a magnetic quadrupole field. While the light, which is red detuned to interact with atoms moving ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.