Volume 20 Number 10 September 2012
... Researchers have released the largest threedimensional map of black holes and massive galaxies, it pinpoints the locations and distances to more than 1 million galaxies, each of which contains more than 100 billion stars, This will enable scientists to retrace the history of the universe for the las ...
... Researchers have released the largest threedimensional map of black holes and massive galaxies, it pinpoints the locations and distances to more than 1 million galaxies, each of which contains more than 100 billion stars, This will enable scientists to retrace the history of the universe for the las ...
Properties of Supernovae
... Supernova explosions are the most powerful events in the Universe. In less than a second, about 1044 Joules of energy are released---about the same as the Sun has released in its entire lifetime! The explosion results from the death of a massive star which has consumed its entire fuel supply. The ap ...
... Supernova explosions are the most powerful events in the Universe. In less than a second, about 1044 Joules of energy are released---about the same as the Sun has released in its entire lifetime! The explosion results from the death of a massive star which has consumed its entire fuel supply. The ap ...
Phobos
... Astronomers at the University of Toronto have discovered a companion to a 'planetary-mass object' or orphan planet -- one that has no star around which to orbit. Both objects have masses similar to those of extra-solar giant planets, usually found in orbit around a star. The researchers discovered t ...
... Astronomers at the University of Toronto have discovered a companion to a 'planetary-mass object' or orphan planet -- one that has no star around which to orbit. Both objects have masses similar to those of extra-solar giant planets, usually found in orbit around a star. The researchers discovered t ...
Building galaxies Hunt, Leslie Kipp
... plates, the Hubble sequence is in fact a physical one. Several quantifiable parameters vary significantly with Hubble type. Already from photographic material it was known that optical colors (U −B, B −V ) and surface brightness depend on morphological type with later type spirals tending to have fa ...
... plates, the Hubble sequence is in fact a physical one. Several quantifiable parameters vary significantly with Hubble type. Already from photographic material it was known that optical colors (U −B, B −V ) and surface brightness depend on morphological type with later type spirals tending to have fa ...
The Hunt for Epsilon Eridani c to Study its Earthly
... These near IR imaging observations will hopefully lead to the undeniable existence of Epsilon Eridani c, an exoplanet presumed to exist around parent star that is maintaining the shape of the kuiper belt-like dust disk encircling the star. With the recent explosion in exoplanet research and public i ...
... These near IR imaging observations will hopefully lead to the undeniable existence of Epsilon Eridani c, an exoplanet presumed to exist around parent star that is maintaining the shape of the kuiper belt-like dust disk encircling the star. With the recent explosion in exoplanet research and public i ...
HIGH RESOLTION SPH SIMULATIONS OF GALAXY CLUSTERS
... Spatial smoothing= 0.5 kpc Different feedback params. ...
... Spatial smoothing= 0.5 kpc Different feedback params. ...
File - Flipped Out Science with Mrs. Thomas!
... • Using a light year as a distance measurement has another advantage -- it helps you determine age. • Let's say that a star is 1 million light years away. The light from that star has traveled at the speed of light to reach us. Therefore, it has taken the star's light 1 million years to get here, an ...
... • Using a light year as a distance measurement has another advantage -- it helps you determine age. • Let's say that a star is 1 million light years away. The light from that star has traveled at the speed of light to reach us. Therefore, it has taken the star's light 1 million years to get here, an ...
Stellar population models in the Near-Infrared Meneses
... Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons the number of authors shown on this cover page is limited to 10 maximum. ...
... Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons the number of authors shown on this cover page is limited to 10 maximum. ...
Skynet
... Bright Enough to See Without a Telescope! The Most Luminous Event Ever Observed...30,000,000,000,000,000,000 (30 Billion Billion) Times the Luminosity of the Sun, or as Bright as 100 Million Galaxies! Very Easy to Make Scientific Observations with a Small Telescope ...
... Bright Enough to See Without a Telescope! The Most Luminous Event Ever Observed...30,000,000,000,000,000,000 (30 Billion Billion) Times the Luminosity of the Sun, or as Bright as 100 Million Galaxies! Very Easy to Make Scientific Observations with a Small Telescope ...
Document
... Universe is finite in size Universe is finite in age Dust blocks out most light Light gets too redshifted to see ...
... Universe is finite in size Universe is finite in age Dust blocks out most light Light gets too redshifted to see ...
The hierarchical structure of the Universe (go from little to large)
... Is the Milky Way visible to the naked eye in a dark location? ...
... Is the Milky Way visible to the naked eye in a dark location? ...
Astrophysics
... Black Hole: With very massive stars, the inner core collapses but continues to do so until it becomes nothing more than a point mass. Point mass singularity, and this breaks the laws of Physics. The strength of gravity inside a black hole is so massive that nothing can escape, not even light (whic ...
... Black Hole: With very massive stars, the inner core collapses but continues to do so until it becomes nothing more than a point mass. Point mass singularity, and this breaks the laws of Physics. The strength of gravity inside a black hole is so massive that nothing can escape, not even light (whic ...
Galaxies
... • Stars come in large groups (20 - 200 billion stars) called Galaxies • >200 billion observable galaxies. Come in Shapes and Sizes depending on how they were formed Elliptical (football shape) Spirals (frisbee shape) Irregulars (ill-defined shape) • Look at structure, mass, history of galaxies PH ...
... • Stars come in large groups (20 - 200 billion stars) called Galaxies • >200 billion observable galaxies. Come in Shapes and Sizes depending on how they were formed Elliptical (football shape) Spirals (frisbee shape) Irregulars (ill-defined shape) • Look at structure, mass, history of galaxies PH ...
Highlights of the Month - Bridgend Astronomical Society
... observation in a small telescope as Mizar is then shown to be an easily resolved double star. A fainter reddish star forms a triangle with Alcor and Mizar. Ursa Major contains many interesting "deep sky" objects. The brightest, listed in Messier's Catalogue, are shown on the chart, but there are man ...
... observation in a small telescope as Mizar is then shown to be an easily resolved double star. A fainter reddish star forms a triangle with Alcor and Mizar. Ursa Major contains many interesting "deep sky" objects. The brightest, listed in Messier's Catalogue, are shown on the chart, but there are man ...
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.