Rich
... • The size of the LAEs correlates with optical luminosity. • IFUV is likely underestimated for the large sources as the UV flux is likely emitted from HII regions within the disks. • There are no compact low luminosity non-LAEs, which is likely a selection effect of the GALEX spectroscopy. • Overall ...
... • The size of the LAEs correlates with optical luminosity. • IFUV is likely underestimated for the large sources as the UV flux is likely emitted from HII regions within the disks. • There are no compact low luminosity non-LAEs, which is likely a selection effect of the GALEX spectroscopy. • Overall ...
Strongly suggested reading: The stellar halo of the Galaxy
... In the early years, star counts were based on photographic images, and were usually restricted to just a few fields. This was also the basis for the pioneering Bahcall and Soneira (1980) model of the Galaxy. These authors took the approach that our Galaxy is “just” like any other galaxy, and so it s ...
... In the early years, star counts were based on photographic images, and were usually restricted to just a few fields. This was also the basis for the pioneering Bahcall and Soneira (1980) model of the Galaxy. These authors took the approach that our Galaxy is “just” like any other galaxy, and so it s ...
the stebbins galaxy: the origins of interstellar medium studies
... globular clusters. The result of those measurements provided a three-dimensional distribution of the globular clusters from which he drew bold conclusions about the size and structure of our Galaxy. Assuming that the globular clusters form a symmetric halo around the center of the Galaxy, their appa ...
... globular clusters. The result of those measurements provided a three-dimensional distribution of the globular clusters from which he drew bold conclusions about the size and structure of our Galaxy. Assuming that the globular clusters form a symmetric halo around the center of the Galaxy, their appa ...
Gaia 1 and 2. A pair of new satellites of the Galaxy
... satellites and stellar streams appear as low-level enhancements of the stellar density field and as such can either be destroyed or mimicked by the survey systematics. For example, for a given exposure on a given telescope, a combination of the atmosphere stability, the sky brightness and the im? ...
... satellites and stellar streams appear as low-level enhancements of the stellar density field and as such can either be destroyed or mimicked by the survey systematics. For example, for a given exposure on a given telescope, a combination of the atmosphere stability, the sky brightness and the im? ...
Digital Universe Guide - American Museum of Natural History
... copies of the Atlas provided this license and copyright information accompany the Atlas. Modifying the Atlas The user is free to modify the Atlas by either adding data or altering existing data, provided it is for personal use only. Once the user modifies the Atlas, it is no longer part of AMNH’s At ...
... copies of the Atlas provided this license and copyright information accompany the Atlas. Modifying the Atlas The user is free to modify the Atlas by either adding data or altering existing data, provided it is for personal use only. Once the user modifies the Atlas, it is no longer part of AMNH’s At ...
IRAM Annual Report 2014
... IRAM is in the exceptional position that, in parallel to the very important efforts for NOEMA, the development of NIKA-2 (Neel-IRAM-KID-Array 2), a major facility instrument for the IRAM 30-meter telescope, has been possible through collaboration with local French and European partners. NIKA2 will b ...
... IRAM is in the exceptional position that, in parallel to the very important efforts for NOEMA, the development of NIKA-2 (Neel-IRAM-KID-Array 2), a major facility instrument for the IRAM 30-meter telescope, has been possible through collaboration with local French and European partners. NIKA2 will b ...
NUMERICAL SIMULATIONS OF SOLAR AND STELLAR CONVECTION AND OSCILLATIONS By Dali Giorgobiani
... to thank my thesis advisor, Professor Robert Stein, for his support and assistance, for everything I have learned from him, for always being there for me when I needed help. I thank Prof. Stein for allowing me to use his 3D (M)HD code, which is the basis of my research and which represents one of th ...
... to thank my thesis advisor, Professor Robert Stein, for his support and assistance, for everything I have learned from him, for always being there for me when I needed help. I thank Prof. Stein for allowing me to use his 3D (M)HD code, which is the basis of my research and which represents one of th ...
Stars, Galaxies, Superuniverses and the Urantia Book, by Frederick
... "Your world, Urantia, is one of many similar inhabited planets which comprise the local universe of Nebadon. This universe, together with similar creations, makes up the superuniverse of Orvonton, from whose capital, Uversa, our commission hails. Orvonton is one of the seven evolutionary superuniver ...
... "Your world, Urantia, is one of many similar inhabited planets which comprise the local universe of Nebadon. This universe, together with similar creations, makes up the superuniverse of Orvonton, from whose capital, Uversa, our commission hails. Orvonton is one of the seven evolutionary superuniver ...
Elliptical Galaxies
... found in de Zeeuw and Franx (1992). Dark haloes: mass at large radius Spiral galaxy rotation curves have been used to show that they are embedded in dark haloes that contain three to ten times as much mass as is visible in stars, gas and dust. Can dark haloes be detected in elliptical galaxies? The ...
... found in de Zeeuw and Franx (1992). Dark haloes: mass at large radius Spiral galaxy rotation curves have been used to show that they are embedded in dark haloes that contain three to ten times as much mass as is visible in stars, gas and dust. Can dark haloes be detected in elliptical galaxies? The ...
Gamma-Ray Pulsars - INTEGRAL
... Compton Gamma-Ray Observatory have led to the detection of nearly ten γ-ray pulsars . Although quite a variety of individual signatures is found for these pulsars, some general characteristics can be summarized: (1) the γ-ray lightcurves of most high-energy pulsars show two major peaks with the puls ...
... Compton Gamma-Ray Observatory have led to the detection of nearly ten γ-ray pulsars . Although quite a variety of individual signatures is found for these pulsars, some general characteristics can be summarized: (1) the γ-ray lightcurves of most high-energy pulsars show two major peaks with the puls ...
Axisymmetry in protoplanetary nebulae: using imaging polarimetry
... any further outflow along the polar axis. Until recently, however, resolved images of CSEs existed for only a few large, bipolar PPNe, compared with a list of PPNe candidates numbering over 100 (Volk & Kwok 1989), and so this model has not been well tested. In many PPNe, the dust shell has thinned t ...
... any further outflow along the polar axis. Until recently, however, resolved images of CSEs existed for only a few large, bipolar PPNe, compared with a list of PPNe candidates numbering over 100 (Volk & Kwok 1989), and so this model has not been well tested. In many PPNe, the dust shell has thinned t ...
Astronomy
... originate outside the Earth's atmosphere (such as the cosmic background radiation). It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the formation and development of the universe. Astronomy is one of the oldest sciences. Prehistoric cul ...
... originate outside the Earth's atmosphere (such as the cosmic background radiation). It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the formation and development of the universe. Astronomy is one of the oldest sciences. Prehistoric cul ...
The environment of high-redshift AGN OLIMPIA JUDIT FOGASY
... In order to understand the formation and evolution of local massive galaxies and to reveal the processes that engineered the tight correlations found between their supermassive black hole (SMBH) mass and bulge mass or velocity dispersion, the study of powerful, high-redshift active galactic nuclei ( ...
... In order to understand the formation and evolution of local massive galaxies and to reveal the processes that engineered the tight correlations found between their supermassive black hole (SMBH) mass and bulge mass or velocity dispersion, the study of powerful, high-redshift active galactic nuclei ( ...
Galaxy evolution: A new version of the Besançon Maria A. Czekaj
... towards specific directions along the line of sight, where model and data were compared up to faint magnitudes. The model was also compared with all sky surveys, such as GSC2 and 2MASS, but the bright stars such as A and F type stars were never deeply studied. In this PhD project we have accomplished ...
... towards specific directions along the line of sight, where model and data were compared up to faint magnitudes. The model was also compared with all sky surveys, such as GSC2 and 2MASS, but the bright stars such as A and F type stars were never deeply studied. In this PhD project we have accomplished ...
Present-day cosmic abundances - Dr. Karl Remeis
... position of the dust-phase is required, which, however, is lacking. Further complications for H ii region studies are the dependence of the derived abundances on the indicators employed in the analysis3 , fluctuations of the electron temperature throughout the nebula, and ionization correction facto ...
... position of the dust-phase is required, which, however, is lacking. Further complications for H ii region studies are the dependence of the derived abundances on the indicators employed in the analysis3 , fluctuations of the electron temperature throughout the nebula, and ionization correction facto ...
Observations, Modeling and Theory of Debris Disks
... Warm dust in the habitable zones of solar-type stars is of particular interest, both as a potential indicator of ongoing terrestrial planet formation and as a source of obscuration for future imaging of such planets. Mid-IR excess is difficult to detect, since the dust emission tends to be overwhelm ...
... Warm dust in the habitable zones of solar-type stars is of particular interest, both as a potential indicator of ongoing terrestrial planet formation and as a source of obscuration for future imaging of such planets. Mid-IR excess is difficult to detect, since the dust emission tends to be overwhelm ...
Astronomy 113 Laboratory Manual - UW
... Astronomy 113 is a hands-on tour of the visible universe through computer simulated and experimental exploration. During the 14 lab sessions, we will encounter objects located in our own solar system, stars filling the Milky Way, and objects located much further away in the far reaches of space. Ast ...
... Astronomy 113 is a hands-on tour of the visible universe through computer simulated and experimental exploration. During the 14 lab sessions, we will encounter objects located in our own solar system, stars filling the Milky Way, and objects located much further away in the far reaches of space. Ast ...
Observations, Modeling and Theory of Debris Disks
... Warm dust in the habitable zones of solar-type stars is of particular interest, both as a potential indicator of ongoing terrestrial planet formation and as a source of obscuration for future imaging of such planets. Mid-IR excess is difficult to detect, since the dust emission tends to be overwhelm ...
... Warm dust in the habitable zones of solar-type stars is of particular interest, both as a potential indicator of ongoing terrestrial planet formation and as a source of obscuration for future imaging of such planets. Mid-IR excess is difficult to detect, since the dust emission tends to be overwhelm ...
X. Nuclear star clusters in low-mass early-type galaxies
... At faint magnitudes, the dominant noise is a combination of the readnoise and the sky background noise with a small contribution of Poisson noise from the host galaxy (see also Section 4.3 and Fig. 6). For a host galaxy absolute magnitude MF814W = −13 mag, the difference between the host galaxy magn ...
... At faint magnitudes, the dominant noise is a combination of the readnoise and the sky background noise with a small contribution of Poisson noise from the host galaxy (see also Section 4.3 and Fig. 6). For a host galaxy absolute magnitude MF814W = −13 mag, the difference between the host galaxy magn ...
The most metal-poor galaxies
... IZw18 and IIZw40. They emphasised that they could be genuinely young galaxies in the process of formation, because of their extreme metal under-abundance, more than 10 times less than solar, and even more extreme than that of HII regions found in the outskirts of spiral galaxies. At the time of this ...
... IZw18 and IIZw40. They emphasised that they could be genuinely young galaxies in the process of formation, because of their extreme metal under-abundance, more than 10 times less than solar, and even more extreme than that of HII regions found in the outskirts of spiral galaxies. At the time of this ...
R136a1
RMC 136a1 (usually abbreviated to R136a1) is a Wolf-Rayet star located at the center of R136, the central condensation of stars of the large NGC 2070 open cluster in the Tarantula Nebula. It lies at a distance of about 50 kiloparsecs (163,000 light-years) in the Large Magellanic Cloud. It has the highest mass and luminosity of any known star, at 265 M☉ and 8.7 million L☉, and also one of the hottest at over 50,000 K.