Black Hole
... •There are many galaxies in the universe, and our Another galaxy , The galaxy, the Milky Way Canis Major Dwarf, was found by German galaxy, has many solar Astronomers on November systems and planets in it. 10, 2010. This is currently the closest galaxy to our ...
... •There are many galaxies in the universe, and our Another galaxy , The galaxy, the Milky Way Canis Major Dwarf, was found by German galaxy, has many solar Astronomers on November systems and planets in it. 10, 2010. This is currently the closest galaxy to our ...
PowerPoint - Chandra X
... X-ray spectra of the wind show that the composition of the material in the wind is roughly similar to that of the Sun’s atmosphere, except for a deficit of oxygen atoms, and that it has a temperature of about 100,000 K. The average gas speed is about 500 km/s. ...
... X-ray spectra of the wind show that the composition of the material in the wind is roughly similar to that of the Sun’s atmosphere, except for a deficit of oxygen atoms, and that it has a temperature of about 100,000 K. The average gas speed is about 500 km/s. ...
633 infrared, ultraviolet, x-ray, and gamma
... jets of hot gas in opposite directions at nearly the speed of light. The black hole is surrounded by a disk of gas that is spiraling into it. As it does so, the gas gives off huge amounts of radiation before disappearing inside the black hole. Scientists currently recognize many phenomena associated ...
... jets of hot gas in opposite directions at nearly the speed of light. The black hole is surrounded by a disk of gas that is spiraling into it. As it does so, the gas gives off huge amounts of radiation before disappearing inside the black hole. Scientists currently recognize many phenomena associated ...
Sky News – March 2015 The Realm of the Galaxies
... galaxies are outlying members. Here galaxies are so numerous that they seem to outnumber the visible stars. Estimates of the total number are between 1,200 and 2,000 and the average distance is 53 million light years (a light year is about 10 trillion kilometres). As with virtually all clusters of g ...
... galaxies are outlying members. Here galaxies are so numerous that they seem to outnumber the visible stars. Estimates of the total number are between 1,200 and 2,000 and the average distance is 53 million light years (a light year is about 10 trillion kilometres). As with virtually all clusters of g ...
Galaxies - Physics
... What are the spiral and elliptical nebulae? • No individual stars are visible, even in largest telescopes • Some have spiral structure, as if spinning rapidly • Visible amount of rotation over a few decades? • Continuous spectra • Hypothesis 1: Swirling clouds of fluid, possibly forming new solar s ...
... What are the spiral and elliptical nebulae? • No individual stars are visible, even in largest telescopes • Some have spiral structure, as if spinning rapidly • Visible amount of rotation over a few decades? • Continuous spectra • Hypothesis 1: Swirling clouds of fluid, possibly forming new solar s ...
A - 4 - Subaru Telescope
... Not all galaxies look pretty and symmetric. When they do not, astronomers use the term “irregular" to describe them. IC 10 is one such galaxy. Astronomers study it in order to understand how stars evolve. IC 10 is also a member of a cluster of galaxies called the Local Group, which includes the Milk ...
... Not all galaxies look pretty and symmetric. When they do not, astronomers use the term “irregular" to describe them. IC 10 is one such galaxy. Astronomers study it in order to understand how stars evolve. IC 10 is also a member of a cluster of galaxies called the Local Group, which includes the Milk ...
20.2 The Milky Way and Other Galaxies
... -RECOGNIZE THAT AT THE CENTER OF THE MILKY WAY THERE IS A BULGE STARS, FROM WHICH ARE SPIRAL ARMS OF GAS, DUST AND MOST OF THE YOUNG STARS. -RECOGNIZE THAT THE SOLAR SYSTEM IS PART OF THE MILKY WAY GALAXY. K -DEMONSTRATE THAT HUBBLE’S LAW THAT GALAXIES THAT ARE FARTHER AWAY HAVE A GREATER RED SHIFT, ...
... -RECOGNIZE THAT AT THE CENTER OF THE MILKY WAY THERE IS A BULGE STARS, FROM WHICH ARE SPIRAL ARMS OF GAS, DUST AND MOST OF THE YOUNG STARS. -RECOGNIZE THAT THE SOLAR SYSTEM IS PART OF THE MILKY WAY GALAXY. K -DEMONSTRATE THAT HUBBLE’S LAW THAT GALAXIES THAT ARE FARTHER AWAY HAVE A GREATER RED SHIFT, ...
Hypervelocity Globular: A beacon of merging clusters Oleg Gnedin with Alexey Vikhlinin
... requires different acceleration mechanism • Likely belongs to the globular cluster system of M86 group, which is merging head-on with the Virgo cluster: significant probability of reaching the observed velocity • Extreme negative velocity outliers are signposts of cluster ...
... requires different acceleration mechanism • Likely belongs to the globular cluster system of M86 group, which is merging head-on with the Virgo cluster: significant probability of reaching the observed velocity • Extreme negative velocity outliers are signposts of cluster ...
Physics 127 Descriptive Astronomy Homework #20 Key
... Hubble was able to detect Cepheid variable stars within that “Nebula.” Then by observing their light curves and using the known period- luminosity relation for Cepheids, he obtained and compared the absolute magnitudes of these Cepheids with his observed apparent magnitudes, yielding a distance for ...
... Hubble was able to detect Cepheid variable stars within that “Nebula.” Then by observing their light curves and using the known period- luminosity relation for Cepheids, he obtained and compared the absolute magnitudes of these Cepheids with his observed apparent magnitudes, yielding a distance for ...
Messier 87
Messier 87 (also known as Virgo A or NGC 4486, and generally abbreviated to M87) is a supergiant elliptical galaxy in the constellation Virgo. One of the most massive galaxies in the local universe, it is notable for its large population of globular clusters—M87 contains about 12,000 compared to the 150-200 orbiting the Milky Way—and its jet of energetic plasma that originates at the core and extends outward at least 1,500 parsecs (4,900 light-years), travelling at relativistic speed. It is one of the brightest radio sources in the sky, and is a popular target for both amateur astronomy observations and professional astronomy study.French astronomer Charles Messier discovered M87 in 1781, cataloguing it as a nebulous feature while searching for objects that would confuse comet hunters. The second brightest galaxy within the northern Virgo Cluster, M87 is located about 16.4 million parsecs (53.5 million light-years) from Earth. Unlike a disk-shaped spiral galaxy, M87 has no distinctive dust lanes. Instead, it has an almost featureless, ellipsoidal shape typical of most giant elliptical galaxies, diminishing in luminosity with distance from the centre. Forming around one sixth of M87's mass, the stars in this galaxy have a nearly spherically symmetric distribution, their density decreasing with increasing distance from the core. At the core is a supermassive black hole, which forms the primary component of an active galactic nucleus. This object is a strong source of multiwavelength radiation, particularly radio waves. M87's galactic envelope extends out to a radius of about 150 kiloparsecs (490,000 light-years), where it has been truncated—possibly by an encounter with another galaxy. Between the stars is a diffuse interstellar medium of gas that has been chemically enriched by elements emitted from evolved stars.