The Kuiper Belt and Other Debris Disks - UCLA
... they are certainly not solid bodies but are merely composed of molecules which, if they were much colder, would be simple ices. In terms of their mode of formation, the difference between the ice giants and the gas giants may be largely one of timescale. It is widely thought that the ice giants corr ...
... they are certainly not solid bodies but are merely composed of molecules which, if they were much colder, would be simple ices. In terms of their mode of formation, the difference between the ice giants and the gas giants may be largely one of timescale. It is widely thought that the ice giants corr ...
Polarimetry: a powerful diagnostic tool in astronomy
... show appreciable polarization. For example, synchrotron and cyclotron radiation produce linear and circular polarization respectively. However, it is the polarization produced by material around a star that perhaps provides most current interest. This could be from a protoplanetary disc or a debris ...
... show appreciable polarization. For example, synchrotron and cyclotron radiation produce linear and circular polarization respectively. However, it is the polarization produced by material around a star that perhaps provides most current interest. This could be from a protoplanetary disc or a debris ...
The white dwarf population within 40 pc of the Sun
... 16 (Harris et al. 2006). However, the sample of Harris et al. (2006) is severely affected by the observational biases, completeness corrections and selection procedures. Holberg et al. (2008) showed that the best way to overcome these observational drawbacks is to rely on volume-limited samples. Acc ...
... 16 (Harris et al. 2006). However, the sample of Harris et al. (2006) is severely affected by the observational biases, completeness corrections and selection procedures. Holberg et al. (2008) showed that the best way to overcome these observational drawbacks is to rely on volume-limited samples. Acc ...
ATACAMA LARGE MILLIMETER / SUBMILLIMETER ARRAY
... in both continuum and the emission lines of interstellar molecules. It will image stars and planets being formed in gas clouds near the Sun, and it will observe galaxies in their formative stages at the edge of the Universe, which we see as they were roughly ten billion years ago. ALMA will provide ...
... in both continuum and the emission lines of interstellar molecules. It will image stars and planets being formed in gas clouds near the Sun, and it will observe galaxies in their formative stages at the edge of the Universe, which we see as they were roughly ten billion years ago. ALMA will provide ...
Reassessing the formation of the inner Oort cloud
... system consisting of stars, planets and comets is treated self-consistently in our N-body simulations, rather than approximating the stellar encounters with the outer Solar System as hyperbolic fly-bys. Second, we have included the expulsion of the cluster gas, a feature that was absent previously. ...
... system consisting of stars, planets and comets is treated self-consistently in our N-body simulations, rather than approximating the stellar encounters with the outer Solar System as hyperbolic fly-bys. Second, we have included the expulsion of the cluster gas, a feature that was absent previously. ...
Galileo`s Observation of Neptune 1612-1613
... Galileo’s Observations of Neptune Just about all of the “fixed stars” Galileo records in his notebooks while observing Jupiter appear in modern star catalogues. However one of those “fixed stars”, seen in December 1612 and January 1613 does not appear in any star catalogue. This particular “fixed st ...
... Galileo’s Observations of Neptune Just about all of the “fixed stars” Galileo records in his notebooks while observing Jupiter appear in modern star catalogues. However one of those “fixed stars”, seen in December 1612 and January 1613 does not appear in any star catalogue. This particular “fixed st ...
Spacecraft Navigation Using X-Ray Pulsars
... Theories of general relativity and stellar structure project that on their collapse stars with insufficient mass to create a black hole produce several types of ultradense, compact objects.6,7 One such proposed object is a neutron star (NS).8−10 This object is the result of a massive star that has e ...
... Theories of general relativity and stellar structure project that on their collapse stars with insufficient mass to create a black hole produce several types of ultradense, compact objects.6,7 One such proposed object is a neutron star (NS).8−10 This object is the result of a massive star that has e ...
Trapezium Fracture
... place, and when they peer curiously at our own long dead region of space, it will not be in order to understand their ultimate fate, but rather…where they came from! Stellar nursery that the Orion nebula is, our descendents, just 100,000 years from now, who look to this region of the sky with techno ...
... place, and when they peer curiously at our own long dead region of space, it will not be in order to understand their ultimate fate, but rather…where they came from! Stellar nursery that the Orion nebula is, our descendents, just 100,000 years from now, who look to this region of the sky with techno ...
Type II SuperNova - University of Dayton
... astronomers) was observed in a nearby galaxy called the Large Magellanic Cloud. This was the first "nearby" supernova in the last 3 centuries, and for the first time astronomers not only observed the light show, but also detected 19 of the elusive neutrinos (the detectors observed electron anti-neut ...
... astronomers) was observed in a nearby galaxy called the Large Magellanic Cloud. This was the first "nearby" supernova in the last 3 centuries, and for the first time astronomers not only observed the light show, but also detected 19 of the elusive neutrinos (the detectors observed electron anti-neut ...
Planet Formation in the Outer Solar System
... This analysis leads to the hypothesis that the initial elemental abundances of the solar nebula were nearly identical to solar abundances. The surface density of the minimum-mass solar nebula follows from adding hydrogen and helium to each planet to reach a solar abundance and spreading the resultin ...
... This analysis leads to the hypothesis that the initial elemental abundances of the solar nebula were nearly identical to solar abundances. The surface density of the minimum-mass solar nebula follows from adding hydrogen and helium to each planet to reach a solar abundance and spreading the resultin ...
OXYGEN IN THE SOLAR SYSTEM
... compare the predictions of a leading nucleosynthetic model with those of the chemical models. There are two fundamentally different classes of possible chemical mechanisms for massindependent oxygen isotope fractionation in the early Solar System. One is symmetry-induced intramolecular vibrational d ...
... compare the predictions of a leading nucleosynthetic model with those of the chemical models. There are two fundamentally different classes of possible chemical mechanisms for massindependent oxygen isotope fractionation in the early Solar System. One is symmetry-induced intramolecular vibrational d ...
CORE SUBJECT K to 12 Senior High School Core Curriculum
... Naylor, John. Out of the Blue: A 24-hour Skywatcher's Guide. England: Cambridge University Press, 2002. Pasachoff, Jay and Alex Filipenko. The Cosmos: Astronomy in the New Millenium. California: Thomson-Brooks/Cole, 2007. Shipman, James T., Jerry D. Wilson, and Charles A. Higgins. An Introduction to ...
... Naylor, John. Out of the Blue: A 24-hour Skywatcher's Guide. England: Cambridge University Press, 2002. Pasachoff, Jay and Alex Filipenko. The Cosmos: Astronomy in the New Millenium. California: Thomson-Brooks/Cole, 2007. Shipman, James T., Jerry D. Wilson, and Charles A. Higgins. An Introduction to ...
Short-period comets
... Nature and Nomenclature of Comets • Historically, when a comet is discovered it has been named after the discoverer (e.g. Comet Holmes was discovered by Edwin Holmes). • The prefix C/ denotes a comet. When a comet discovered, it is given preliminary designation such as C/2001 Q3 (SOHO). In this exa ...
... Nature and Nomenclature of Comets • Historically, when a comet is discovered it has been named after the discoverer (e.g. Comet Holmes was discovered by Edwin Holmes). • The prefix C/ denotes a comet. When a comet discovered, it is given preliminary designation such as C/2001 Q3 (SOHO). In this exa ...
DUSTY CIRCUMSTELLAR DISKS B. Zuckerman
... Recently, surveys of X-ray emission, especially with the German ROSAT satellite, have enabled detection of many stars that appear to be old or post T Tauri stars (e.g., Neuhäuser 1997). Such stars have been discovered because they emit many more X-rays than do older, main-sequence, stars. Not only ...
... Recently, surveys of X-ray emission, especially with the German ROSAT satellite, have enabled detection of many stars that appear to be old or post T Tauri stars (e.g., Neuhäuser 1997). Such stars have been discovered because they emit many more X-rays than do older, main-sequence, stars. Not only ...
We Do Not Forget Johannes Kepler Introduction
... to God, and he saw his work as a ful lment of his Christian duty to understand the works of God. Man being, as Kepler believed, made in the image of God, was clearly capable of understanding the Universe that He had created. Moreover, Kepler was convinced that God had made the Universe according to ...
... to God, and he saw his work as a ful lment of his Christian duty to understand the works of God. Man being, as Kepler believed, made in the image of God, was clearly capable of understanding the Universe that He had created. Moreover, Kepler was convinced that God had made the Universe according to ...
A Search for Extrasolar Planets Using Echoes Produced in Flare
... reflected pulse or pulses can provide much information about the object, provided care has been taken to filter wanted from unwanted signals (Harvey, 1968). For most active radar systems, the originating pulse of energy is at the same location as the receiver, often using the same antenna. In the as ...
... reflected pulse or pulses can provide much information about the object, provided care has been taken to filter wanted from unwanted signals (Harvey, 1968). For most active radar systems, the originating pulse of energy is at the same location as the receiver, often using the same antenna. In the as ...
