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Latest Bulge Stories

Spiral Galaxy M81 is an example of a fat bulgy galaxy
2014-02-28 11:19:26

Brett Smith for redOrbit.com - Your Universe Online A pair of Australian astrophysicists has shown that the shape of a galaxy is determined by how fast it spins, according to a new report in The Astrophysical Journal. Part of “The Evolving Universe” research series at the ARC Centre of Excellence for All-sky Astrophysics (CAASTRO) in Australia, the new study concluded that fatter spiral galaxies are relatively slow spinning, while thinner spiral galaxies are rotating are higher...

Bar Galaxies Galaxy Zoo
2014-01-17 09:25:09

[ Watch the Video: How Have Barred Spiral Galaxies Evolved Over Time? ] John P. Millis, PhD for redOrbit.com - Your Universe Online There are a number of interesting puzzles in astronomy that have faced significant challenge because the analysis simply requires massive amounts of data and complicated algorithms that demands serious computing power. Luckily, in at least some of these cases, the same algorithms that are a difficult for a computer to execute are relatively easy for our...

ESA Releases Hubble Image Of Messier 83, A Galaxy With Two Hearts
2014-01-10 06:45:29

April Flowers for redOrbit.com - Your Universe Online A new image released from the ESA and NASA jointly-operated Hubble Space Telescope features the spiral galaxy Messier 83, also known as the Southern Pinwheel Galaxy. Messier 83, which is one of the largest and closest barred spiral galaxies to us, has hosted a large number of supernova explosions, and is thought to have a double nucleus at its core. The image was released this week at the 223rd meeting of the American Astrophysical...

Hubble Reveals First Visual Evidence Of Milky Way's Formative Years
2013-11-14 16:35:20

HubbleSite NASA's Hubble Space Telescope has provided the first visual evidence showing how our home galaxy, the Milky Way, assembled itself into the majestic pinwheel of stars we see today. Perusing Hubble's deep-sky surveys, astronomers traced 400 galaxies similar to our Milky Way at various stages of construction over a time span of 11 billion years. "For the first time we have direct images of what the Milky Way looked like in the past," said study co-leader Pieter G. van Dokkum...

Dazzling New Hubble Pics Of Beloved Spiral Galaxy Messier 77
2013-03-28 09:13:54

Watch the videos "Panning Across Messier 77" and "Zooming in on Messier 77" Lee Rannals for redOrbit.com - Your Universe Online A stunning new image of the spiral galaxy Messier 77 captured by the Hubble Space Telescope was released today. The image of one of the most famous and well-studied galaxies features patches of red throughout the photo, which highlights the pockets of star formation along its arms. Messier 77, or NGC 1068, sits in the constellation Cetus about 45...

Growth Found to be Out of Synch For Black Hole
2012-06-12 11:42:59

New evidence from NASA's Chandra X-ray Observatory challenges prevailing ideas about how supermassive black holes grow in the centers of galaxies. Astronomers long have thought that a supermassive black hole and the bulge of stars at the center of its host galaxy grow at the same rate -- the bigger the bulge, the bigger the black hole. A new study of Chandra data has revealed two nearby galaxies whose supermassive black holes are growing faster than the galaxies themselves. The mass of a...

Hubble Spies Andromeda's Beauty Edge-on
2012-05-21 03:28:00

Visible in the constellation of Andromeda, NGC 891 is located approximately 30 million light-years away from Earth. The NASA/ESA Hubble Space Telescope turned its powerful wide field Advanced Camera for Surveys towards this spiral galaxy and took this close-up of its northern half. The galaxy's central bulge is just out of the image on the bottom left. The galaxy, spanning some 100,000 light-years, is seen exactly edge-on, and reveals its thick plane of dust and interstellar gas. While...

XMM-Newton Measures The Power Of Black-hole Driven Outflows
2012-02-28 05:01:35

A curious correlation between the mass of a galaxy's central black hole and the velocity of stars in a vast, roughly spherical structure known as its bulge has puzzled astronomers for years. An international team led by Francesco Tombesi at NASA's Goddard Space Flight Center in Greenbelt, Md., now has identified a new type of black-hole-driven outflow that appears to be both powerful enough and common enough to explain this link. Most big galaxies contain a central black hole weighing...

Chandra Discovers Nearest Pair Of Supermassive Black Holes
2011-09-01 06:13:01

  Astronomers using NASA's Chandra X-ray Observatory discovered the first pair of supermassive black holes in a spiral galaxy similar to the Milky Way. Approximately 160 million light years from Earth, the pair is the nearest known such phenomenon. The black holes are located near the center of the spiral galaxy NGC 3393. Separated by only 490 light years, the black holes are likely the remnant of a merger of two galaxies of unequal mass a billion or more years ago. "If this...


Latest Bulge Reference Libraries

6_2aa43df19d80badd941a51295803a8462
2004-10-19 04:45:42

Spiral Galaxy -- Among the galaxies, there are apparently three main categories, according to their appearance: the disk galaxies (`cosmic frisbies' according to P. Murdin, D. Allen, and D. Malin), consisting of a huge disk of stars and interstellar matter, which may form interesting patterns, the elliptical galaxies (`cosmic footballs') which are uniformly looking, ellipsoidal agglomerations of stars, and the irregular galaxies (`cosmic misfits') which cannot be integrated in this scheme....

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Word of the Day
endocarp
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.
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