The Formation and Evolution of the Milky Way
... How stars make “metals” is now reasonably well understood. For the most part they are formed by a chain of fusion of lighter elements. There are actually several astrophysical processes involved, each of which forms a different assortment of elements (Figure 4). How and when these processes take pla ...
... How stars make “metals” is now reasonably well understood. For the most part they are formed by a chain of fusion of lighter elements. There are actually several astrophysical processes involved, each of which forms a different assortment of elements (Figure 4). How and when these processes take pla ...
Time Variation of Kepler Transits Induced By Stellar Rotating Spots
... In that paper we show that indeed a few systems do show highly significant correlation between their derived TTVs and the local photometric derivatives, as predicted by this work. A forthcoming paper will present our analysis of the Kepler eclipsing stellar binaries (Slawson et al. 2011). ...
... In that paper we show that indeed a few systems do show highly significant correlation between their derived TTVs and the local photometric derivatives, as predicted by this work. A forthcoming paper will present our analysis of the Kepler eclipsing stellar binaries (Slawson et al. 2011). ...
Analysis of Angular Momentum in Planetary Systems and Host Stars
... in particular for the several conversations that generated helpful insights and suggestions in the direction of the thesis. Huge thanks to my major advisor, Dr. Samuel Durrance, who gave me this topic and is a big part of why I started (and finished) in the first place. The life of a Ph.D. student p ...
... in particular for the several conversations that generated helpful insights and suggestions in the direction of the thesis. Huge thanks to my major advisor, Dr. Samuel Durrance, who gave me this topic and is a big part of why I started (and finished) in the first place. The life of a Ph.D. student p ...
The new Basel high-latitude field star survey of the Galaxy
... Abstract. We discuss star count and three-color data for the two inner-Galaxy fields SA 107 and NGC 6171 observed in the new Basel RGU high-latitude field star survey. Our analysis is based on the structural models of the Galactic population components that were derived from the previous studies of ...
... Abstract. We discuss star count and three-color data for the two inner-Galaxy fields SA 107 and NGC 6171 observed in the new Basel RGU high-latitude field star survey. Our analysis is based on the structural models of the Galactic population components that were derived from the previous studies of ...
Chapters 12 and 13 Review: The Life Cycle and Death of Stars
... compresses the interior enough that H-burning starts in a narrow shell around the (inert) helium core. H-burning shell generates much more energy than during the main sequence. The star swells up due to this energy generation. ...
... compresses the interior enough that H-burning starts in a narrow shell around the (inert) helium core. H-burning shell generates much more energy than during the main sequence. The star swells up due to this energy generation. ...
Looking for planets with SPHERE in planetary systems with double
... graphics plot the mass of the planet Mp versus its semi-major axis ap . Points beneath the curve are not detectable whereas point above it are indeed detectable. In most cases, the only planet of the system would have been detected and, as far as actually it has not been found, we moved to analyze m ...
... graphics plot the mass of the planet Mp versus its semi-major axis ap . Points beneath the curve are not detectable whereas point above it are indeed detectable. In most cases, the only planet of the system would have been detected and, as far as actually it has not been found, we moved to analyze m ...
Rocky planetesimals as the origin of metals in DZ stars
... where hydrogen is detected or inferred (Dufour et al. 2007) versus height above the Galactic mid-plane and tangential speed. No obvious pattern is seen, although there may be a higher density of DZA stars near the Galactic disc and perhaps also towards more modest speeds, but the former may be an ob ...
... where hydrogen is detected or inferred (Dufour et al. 2007) versus height above the Galactic mid-plane and tangential speed. No obvious pattern is seen, although there may be a higher density of DZA stars near the Galactic disc and perhaps also towards more modest speeds, but the former may be an ob ...
Astrometric accuracy during the past 2000 years
... catalogue, and it is certainly too small because of the unknown systematic errors. The three tables should ideally contain the “external errors” of a catalogue entry as would be obtained from a comparison with a more accurate catalogue. Such comparison could be carried out with any of the older cata ...
... catalogue, and it is certainly too small because of the unknown systematic errors. The three tables should ideally contain the “external errors” of a catalogue entry as would be obtained from a comparison with a more accurate catalogue. Such comparison could be carried out with any of the older cata ...
Natural Regions Near the Collinear Libration Points Ideal for Space
... the vicinity of the telescope orbit, assists in the design of mission scenarios. Quasiperiodic Lissajous trajectories are employed as a new tool to determine regions near the telescope orbit where the large formation can be relatively easily maintained. Studying these trajectories yields some insigh ...
... the vicinity of the telescope orbit, assists in the design of mission scenarios. Quasiperiodic Lissajous trajectories are employed as a new tool to determine regions near the telescope orbit where the large formation can be relatively easily maintained. Studying these trajectories yields some insigh ...
Note on Brooks` new comet c 1911
... The paths of the Earth and the Com.et approMhed each other until about Oct. 1, after which the Comet's rapid movement carned it quiokly away, but during the month of October it approached the Sun and consequently got brighter and brighter all the time, l'llaking it quite visible to the naked eye. Ju ...
... The paths of the Earth and the Com.et approMhed each other until about Oct. 1, after which the Comet's rapid movement carned it quiokly away, but during the month of October it approached the Sun and consequently got brighter and brighter all the time, l'llaking it quite visible to the naked eye. Ju ...
SherwoodWA_1973redux - Edinburgh Research Archive
... The nuclear bulge and the dust pattern are ...
... The nuclear bulge and the dust pattern are ...
Hubble`s Use of Cepheids (PDF version)
... these stars on photographs and had described that to Shapley, when he was still working at Mount Wilson. (Shapley later moved to Harvard.) Shapley had dismissed this as impossible – he ‘knew’ that the spiral nebulae were small, nearby objects. It was galling for him to see Hubble credited with this ...
... these stars on photographs and had described that to Shapley, when he was still working at Mount Wilson. (Shapley later moved to Harvard.) Shapley had dismissed this as impossible – he ‘knew’ that the spiral nebulae were small, nearby objects. It was galling for him to see Hubble credited with this ...
HWWS 2010 - Monash University
... • About 2000 catalogued systems in our Galaxy, mostly radio (rotation-powered) pulsars • Masses of about 1.4-1.8 times the mass of our sun; narrow range (in those systems where measured) and small radii ~10km • Strong magnetic fields; 108–1014 Gauss • Most observed to pulse, up to 700 times per seco ...
... • About 2000 catalogued systems in our Galaxy, mostly radio (rotation-powered) pulsars • Masses of about 1.4-1.8 times the mass of our sun; narrow range (in those systems where measured) and small radii ~10km • Strong magnetic fields; 108–1014 Gauss • Most observed to pulse, up to 700 times per seco ...
Masses of Dwarf Satellites of the Milky Way
... Fig. 1.— Projected velocity dispersion profiles for eight bright dSphs, from Magellan/MMFS and MMT/Hectochelle data. Over-plotted are profiles calculated from isothermal, power-law, NFW and cored halos considered as prospective “universal” dSph halos (Section 5). For each type of halo we fit only fo ...
... Fig. 1.— Projected velocity dispersion profiles for eight bright dSphs, from Magellan/MMFS and MMT/Hectochelle data. Over-plotted are profiles calculated from isothermal, power-law, NFW and cored halos considered as prospective “universal” dSph halos (Section 5). For each type of halo we fit only fo ...
Testing
... Where will the gas be in 1 trillion years? A. blown out of galaxy B. still recycling just like now C. locked into white dwarfs and low-mass stars ...
... Where will the gas be in 1 trillion years? A. blown out of galaxy B. still recycling just like now C. locked into white dwarfs and low-mass stars ...
Double Star Observations - minorplanetobserver.com
... Include only those records where the name of the primary matches the entry in "Name" exactly. The filter is case-sensitive and does not include partial matches. For example: if you enter "Test", then "Test 1" would not be included since it's not an exact match, nor would TEST since it's upper case w ...
... Include only those records where the name of the primary matches the entry in "Name" exactly. The filter is case-sensitive and does not include partial matches. For example: if you enter "Test", then "Test 1" would not be included since it's not an exact match, nor would TEST since it's upper case w ...
Elliptical galaxies
... •If the distribution function f (r, v) is known, and all stars were the same, we could derive the spectrum of the galaxy. •In practice, one makes a guess for the f(r, vz), which depends on a few parameters, and fixes those in order to reproduce the observed spectrum. ...
... •If the distribution function f (r, v) is known, and all stars were the same, we could derive the spectrum of the galaxy. •In practice, one makes a guess for the f(r, vz), which depends on a few parameters, and fixes those in order to reproduce the observed spectrum. ...
Grades 9-12 - pdf - McDonald Observatory
... how fast an object moves away, the wavelength of the light that it emits toward us becomes longer. In the visible part of the spectrum, we perceive the longest wavelengths as the color red. Compared to a spectrum taken in an Earth-bound laboratory, any atomic absorption or emission features in the g ...
... how fast an object moves away, the wavelength of the light that it emits toward us becomes longer. In the visible part of the spectrum, we perceive the longest wavelengths as the color red. Compared to a spectrum taken in an Earth-bound laboratory, any atomic absorption or emission features in the g ...
Notable long-period eclipsing binaries. Part I. - Project VS
... Long-period eclipsing binary stars are very important for stellar astrophysicists, because they offer the chance to study the characteristics of isolated stars with a high degree of precision and accuracy. The most interesting fact about eclipsing binaries is that all kinds of stars are found as mem ...
... Long-period eclipsing binary stars are very important for stellar astrophysicists, because they offer the chance to study the characteristics of isolated stars with a high degree of precision and accuracy. The most interesting fact about eclipsing binaries is that all kinds of stars are found as mem ...
