Spiral structure of the Third Galactic Quadrant and the solution to the
... exhibit clear post main-sequence signatures expected for a 4-10 Gyr population (Martı́nez-Delgado et al. 2005) (red clump or red giant branch, horizontal branch, RR-Lyrae), a distinctive feature, popularised as the Blue Plume (BP; see Fig. 1) has been taken as strong evidence for the existence of th ...
... exhibit clear post main-sequence signatures expected for a 4-10 Gyr population (Martı́nez-Delgado et al. 2005) (red clump or red giant branch, horizontal branch, RR-Lyrae), a distinctive feature, popularised as the Blue Plume (BP; see Fig. 1) has been taken as strong evidence for the existence of th ...
ASTRONOMY AND ASTROPHYSICS (ASTRO)
... stars, to understand the past and future of our Sun, the Milky Way galaxy and the other galaxies in the universe. Basic concepts of cosmology, dark matter and dark energy. Use of computer models to calculate the structure and evolution of stars and protostars, and to analyze actual astronomical data ...
... stars, to understand the past and future of our Sun, the Milky Way galaxy and the other galaxies in the universe. Basic concepts of cosmology, dark matter and dark energy. Use of computer models to calculate the structure and evolution of stars and protostars, and to analyze actual astronomical data ...
SciPoster_Jan2009
... complex is one of the most prominent areas of star formation for low to intermediate mass stars. Padgett et al. (2008) recently presented Spitzer/MIPS data over a 14.4 square degree map of the entire Ophiuchus molecular cloud, finding more than 300 YSO candidates. Could LDN 425 be part of this “exte ...
... complex is one of the most prominent areas of star formation for low to intermediate mass stars. Padgett et al. (2008) recently presented Spitzer/MIPS data over a 14.4 square degree map of the entire Ophiuchus molecular cloud, finding more than 300 YSO candidates. Could LDN 425 be part of this “exte ...
Chapter 10
... 4. What problem led Isaac Newton to invent the reflecting telescope? Also, list some other advantages of reflectors over refracting telescopes./ 5. What is meant by “adaptive optics”; how does it work, and why is it so important in astronomy today? 6. Explain how radio telescopes work and discuss t ...
... 4. What problem led Isaac Newton to invent the reflecting telescope? Also, list some other advantages of reflectors over refracting telescopes./ 5. What is meant by “adaptive optics”; how does it work, and why is it so important in astronomy today? 6. Explain how radio telescopes work and discuss t ...
Imaging the Universe Robert Mutel A Laboratory Manual for Introductory Astronomy
... always translate your answers into something you can comprehend. The actual height of the dust pillars in the Eagle nebula is 16 trillion miles (about 32 trillion kilometers). This is the same as 16,000,000,000,000 miles. But for most of us, numbers above 10 become simply “many”. To give this number ...
... always translate your answers into something you can comprehend. The actual height of the dust pillars in the Eagle nebula is 16 trillion miles (about 32 trillion kilometers). This is the same as 16,000,000,000,000 miles. But for most of us, numbers above 10 become simply “many”. To give this number ...
Abstract The Star Formation History of Low Surface Brightness Galaxies
... The star formation histories of low surface brightness galaxies are interesting but poorly constrained. These objects tend to be rather blue, contradicting the initial impression that they may simply be faded remnants of higher surface brightness galaxies whose star formation has finished. Other sce ...
... The star formation histories of low surface brightness galaxies are interesting but poorly constrained. These objects tend to be rather blue, contradicting the initial impression that they may simply be faded remnants of higher surface brightness galaxies whose star formation has finished. Other sce ...
Astronomy and Astrophysics (ASTRO) Iowa State University – 2013-2014 1
... ASTRO 102. North Star Astronomy. Cr. 1. F.S. An entirely web-based course covering topics in observing the sky and navigation by the stars for students with little or no previous experience. The course combines material on common naked-eye phenomena, such as daily and seasonal variations in the sky, ...
... ASTRO 102. North Star Astronomy. Cr. 1. F.S. An entirely web-based course covering topics in observing the sky and navigation by the stars for students with little or no previous experience. The course combines material on common naked-eye phenomena, such as daily and seasonal variations in the sky, ...
The phenomena of the satellites of the giant planets
... the profile of the standard filters used at Haute Provence Observatory (OHP). ...
... the profile of the standard filters used at Haute Provence Observatory (OHP). ...
NAS biographical memoir of Martin Schwarzschild
... Schwarzschild’s work was not limited to stellar interiors and evolution. A second field of interest was galactic structure At the 1957 launching of Stratoscope I, the first (before it became a fashionable subject) astronomical telescope to take pictures from and the mass distribution within normal a ...
... Schwarzschild’s work was not limited to stellar interiors and evolution. A second field of interest was galactic structure At the 1957 launching of Stratoscope I, the first (before it became a fashionable subject) astronomical telescope to take pictures from and the mass distribution within normal a ...
Studies of molecular clouds at the Galactic centre Roland Karlsson DECLINATION (B1950)
... Observation of molecular clouds may give information about formation and evolution of star-forming complexes, ignition of starbursts as well as the overall kinematic behaviour of the interstellar medium throughout the Galaxy. In spiral galaxies, radial transport of material is considered essential ...
... Observation of molecular clouds may give information about formation and evolution of star-forming complexes, ignition of starbursts as well as the overall kinematic behaviour of the interstellar medium throughout the Galaxy. In spiral galaxies, radial transport of material is considered essential ...
ASTR 110 Lab Manual Sections M02 M03 M04
... with numbers like ten, one hundred, three thousand, ten million, a billion, or even a trillion. But what about a number like one million trillion? Or, four thousand one hundred and fifty six million billion? Such numbers are too cumbersome to handle with words. Scientists use something called “scien ...
... with numbers like ten, one hundred, three thousand, ten million, a billion, or even a trillion. But what about a number like one million trillion? Or, four thousand one hundred and fifty six million billion? Such numbers are too cumbersome to handle with words. Scientists use something called “scien ...
The SMC as a probe of dust in the early Universe
... heating and cooling of clouds and thus regulates star formation. Grain surfaces provide sites for the formation of molecular hydrogen (Hollenbach & Salpeter 1970), another key coolant. The formation of dust in the outflows from evolved stars governs the rate of enrichment of the interstellar medium ...
... heating and cooling of clouds and thus regulates star formation. Grain surfaces provide sites for the formation of molecular hydrogen (Hollenbach & Salpeter 1970), another key coolant. The formation of dust in the outflows from evolved stars governs the rate of enrichment of the interstellar medium ...
A Map of the Universe
... (Górski et al. (1999)). Its results were displayed also on the Mollweide map projection, showing the celestial sphere as an ellipse, which was chosen for its equal area property, and the fact that lines of constant galactic latitude are shown as straight lines. de Lapparent, Geller, & Huchra (1986) ...
... (Górski et al. (1999)). Its results were displayed also on the Mollweide map projection, showing the celestial sphere as an ellipse, which was chosen for its equal area property, and the fact that lines of constant galactic latitude are shown as straight lines. de Lapparent, Geller, & Huchra (1986) ...
Hubble Deep Field
The Hubble Deep Field (HDF) is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. It covers an area 2.5 arcminutes across, about one 24-millionth of the whole sky, which is equivalent in angular size to a 65 mm tennis ball at a distance of 100 metres. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between December 18 and December 28, 1995.The field is so small that only a few foreground stars in the Milky Way lie within it; thus, almost all of the 3,000 objects in the image are galaxies, some of which are among the youngest and most distant known. By revealing such large numbers of very young galaxies, the HDF has become a landmark image in the study of the early universe, with the associated scientific paper having received over 900 citations by the end of 2014.Three years after the HDF observations were taken, a region in the south celestial hemisphere was imaged in a similar way and named the Hubble Deep Field South. The similarities between the two regions strengthened the belief that the universe is uniform over large scales and that the Earth occupies a typical region in the Universe (the cosmological principle). A wider but shallower survey was also made as part of the Great Observatories Origins Deep Survey. In 2004 a deeper image, known as the Hubble Ultra-Deep Field (HUDF), was constructed from a few months of light exposure. The HUDF image was at the time the most sensitive astronomical image ever made at visible wavelengths, and it remained so until the Hubble Extreme Deep Field (XDF) was released in 2012.