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Home > News > Tags > dwarf galaxies
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Stories about: dwarf galaxies |
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While conducting a detailed analysis of the dwarf galaxy NGC 2366, a team of astronomers operating the NASA/ESA Hubble Space Telescope has discovered that the formation is home to a bright, relatively large stellar nursery. The object is so close that experts can make out its individual components.
A stellar nursery... |
11 May 2012
09:53 GMT |
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The number and disposition of dwarf galaxies and star clusters surrounding the Milky Way is shedding doubt on the existence of dark matter, the stuff believed to make up around a quarter of the Universe's mass-energy budget, and to interact with regular matter solely through the force of gravity.
The objects a... |
2 May 2012
10:25 GMT |
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Astronomers operating the NASA/ESA Hubble Space Telescope release a new image of a loosely-bound-together stellar cluster in the Large Magellanic Cloud dwarf galaxy. The latter is one of Milky Way's galactic satellites. The stellar grouping, called LH 88 or NGC 2040, is one of the largest known formations of thi... |
21 April 2012
04:48 GMT |
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Astronomers at the Harvard-Smithsonian Center for Astrophysics (CfA) may have stumbled upon the remnants of a violent cosmic event that occurred billions of years ago. They discovered a cluster of blue stars encircling an intermediate-mass black hole, which is an extremely rare object.
Small, stellar-mass and super... |
15 February 2012
10:38 GMT |
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It's not every day that you hear about the Hubble Space Telescope being beaten to the punch by some obscure observatory, yet this is precisely what happened recently. Experts using the Polaris Observatory Association's Centurion 28 telescope have just discovered a companion for NGC 4449.
This dwarf galaxy ... |
9 February 2012
09:40 GMT |
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Investigators believe that they may be on the right track towards detecting the predicted dark matter satellites that should be orbiting the Milky Way. These objects should attract clumps of gas and other forms of normal matter, which should be visible to existing telescopes.
Dark matter appeared as a necessity to ... |
7 February 2012
05:51 GMT |
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After analyzing data from the Sloan Digital Sky Survey (SDSS-III), investigators determined that two massive streams of stars were recently (in astronomical terms) removed from the Sagittarius dwarf galaxy, and incorporated into our own Milky Way.
Astronomers have been proposing that such streams should become appar... |
30 November 2011
09:54 GMT |
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Astronomers operating the Hubble Space Telescope announce the discovery of a large number of dwarf galaxies in the observatory's deep field. The observation sessions that managed to reveal these cosmic structures focused on an area located about 9 billion light-years away.
What this implies is that Hubble saw t... |
10 November 2011
10:56 GMT |
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In a recent study conducted at the outskirts of our neighboring galaxy, Andromeda, astronomers were able to discover two new dwarf galaxies, which they named Andromeda 28 and 29. Experts hope to use these formations to reveal some of the mysteries associated with dark matter.
This is the stuff that makes up nearly ... |
8 November 2011
03:56 GMT |
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Astrophysicists at the Harvard-Smithsonian Center for Astrophysics (CfA) say that their latest study on the nature of dark matter within the Milky Way has left them knowing less about the elusive stuff than they did before starting the investigation. Dark matter was first proposed to exist in order to explain why gal... |
18 October 2011
06:13 GMT |
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Astronomers announce the discovery of a new dwarf galaxy remnant in the Milky Way. The object, called the Aquarius Stream, is located next to the core of our galaxy, after tidal forces ripped it apart billions of years ago.
Such discoveries should not surprise anyone, since such galactic remnants have been propose... |
11 October 2011
05:59 GMT |
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Astronomers operating the NASA Hubble Space Telescope were surprised to look at a photo of a normal dwarf galaxy, and see that it was actually spewing out numerous gas bubbles in its surroundings. This is the first time experts see such an event taking place.
The huge bubbles of gas can be seen glowing in the new... |
4 October 2011
10:43 GMT |
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According to the results of a new scientific study, it would appear that the Milky Way's spiral shape was not a direct product of its evolutionary path, but rather a result of collisions between our galaxy and two other dwarf galaxies. The events took place within the last 2 billion years.
What makes this ne... |
15 September 2011
03:47 GMT |
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As telescopes become increasingly advanced, astronomers are beginning to discover weird structures at the core of our galaxy, which indicate a rough past for the Milky Way. Recently, a team of experts studied the Terzan 5 globular cluster, gaining new knowledge of how the galaxy formed.Astrophysicists refer to many o... |
6 September 2011
08:46 GMT |
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An international collaboration of researchers determined that the most ancient stars observable in the Milky Way were not in fact produced within our galaxy. These objects are what remains of old galaxies that once collided with our own, helping it grow to its current size. Though not particularly large, the Milky Wa... |
9 August 2011
10:41 GMT |
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A minute galaxy that neighbors the Milky Way surprised astronomers in a new study. While conducting a routine check of the object, a team discovered that the 1,000-star-large formation contained the largest amount of dark matter ever discovered in any galaxy.The small and dim stars in the Segue 1 galaxy are about the... |
2 August 2011
10:26 GMT |
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According to a mounting body of evidence, it would appear that our galaxy may have collided with a large black hole as little as 10 million years ago. The object was most likely located at the core of a smaller, dwarf galaxy as the event happened. This theory was extrapolated from a number of sources, studies conduct... |
19 July 2011
03:47 GMT |
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Understanding the formation of large, spiral and barrel galaxies is one of the main objectives of astronomy, but this line of research is in fact hindered by observations of dwarf galaxies. The data astronomers observe when studying these objects do not match theoretical predictions. Until recently, astronomers were ... |
11 July 2011
09:27 GMT |
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Astronomers at the Stanford University say that only 4 percent of all the galaxies in the Universe have neighbors, like the Milky Way does. Our galaxy has at least two dwarf galaxies as companions, but it may also feature other, yet-undetected neighbors.
Throughout the Universe, this is a fairly rare situation, i... |
21 May 2011
06:05 GMT |
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Recent observations conducted on a dwarf galaxy is allowing astronomers a closer view into the processes and chains of events that eventually lead to the formation of a new star.
The galaxy they recently looked at is called NGC 4214, and it was found to produce new stars at a high pace. Massive hydrogen gas cloud... |
13 May 2011
02:31 GMT |
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Astronomers have recently made an incredible discovery, when they managed to discover a very old star in a nearby dwarf galaxy called Sculptor. The object is located about 290,000 light-years away from Earth, and its presence there holds several important implications for science. One of them is that the Milky Way de... |
26 April 2011
03:52 GMT |
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Since astronomers first discovered supernova events and dwarf galaxies, they were surprised to learn that a very large portion of these tremendously energetic explosions were occurring in the smallest galaxies around. Scientists behind a new study believe they are close to figuring out why this is.They are using the ... |
22 April 2011
10:49 GMT |
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According to the conclusions of a new scientific study, it would appear that dwarf galaxies are entirely dominated by dark matter, and also that the elusive form of matter may exist in the form of dwarf stars.The investigation has interesting implications of models seeking to explain the nature of dark matter. But sc... |
20 April 2011
06:03 GMT |
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An advanced model running on an American supercomputer has revealed the existence of a satellite galaxy around the Milky Way. When astronomers looked for it in real-life, they found traces that may indicate its presence. The model is now used to find other galactic companions as well. Astrophysicists have proposed so... |
24 March 2011
07:00 GMT |
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While investigating the central regions of the Milky Way using an interferometer telescope, astronomers were able to detect traces of stellar fossils that appeared to have been produced by what could best be termed as cosmic intruders. These objects most certainly did not originate inside the galaxy, astronomers say.... |
22 March 2011
09:23 GMT |
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Astronomers have recently determined that our galaxy, the Milky Way, most likely consumed a nearby dwarf galaxy some 700 million years ago. The discovery was made after experts found “leftovers” from the massive cosmic feast. These leftovers come in the form of stars. Some of these objects behave in a pec... |
12 February 2011
06:43 GMT |
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A group of investigators is currently trying to determine whether the dark age of the Universe was brought to an end by the earliest stars, or by other space objects that we're currently unaware of. The study is tremendously important for our understanding of the Cosmos. After the Big Bang exploded everything in... |
9 February 2011
06:08 GMT |
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Astronomers operating the NASA Spitzer Space Telescope announce the discovery of a suspected dwarf galaxy in orbit around the Milky Way. The object cannot be readily made out in visible wavelengths, due to the fact that its light is obscured by our galaxy's.In fact, it is estimated that the Milky Way is responsi... |
20 January 2011
17:01 GMT |
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Some of the most massive galaxies in the Universe, the Milky Way included, grew to their incredible sizes and masses by consuming, or cannibalizing, smaller galaxies that were unfortunate enough to be in their path. A study now shows this process in more detail, and in different places. Dwarf galaxies, which are smal... |
13 January 2011
11:13 GMT |
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In a new study they conducted recently, astronomers were surprised to discover that supermassive black holes can exist at the core of minute, dwarf galaxies as well, and not just at the center of very large ones, such as the Milky Way.This discovery brings an old, chicken-and-egg-type of question back into the spotli... |
10 January 2011
02:40 GMT |
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A theory related to how galaxies evolve over the course of their lifespan in currently gaining increased support from the international astronomical community. Its premises challenge those of the most commonly-accepted theories of what evolutionary path spiral galaxies take. One of the most “traditional” ... |
27 December 2010
04:29 GMT |
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In a new set of investigations, scientists discovered that quasars emitted massive blasts of radiation in the early Universe, essentially delaying the growth of dwarf galaxies by as much as 500 million years.This period of accelerated universal warming took place an estimated 11 billion years ago, according to data c... |
8 October 2010
01:44 GMT |
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Data collected via a space telescope recently revealed that a star is brighter than an entire galaxy. The cosmic fireball is naturally located closer to Earth, but it lies right in the line of sight. Astronomers using the Hubble Space Telescope were originally aiming for the galaxy known as PGC 39058, which is locate... |
14 September 2010
10:08 GMT |
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In a new study, researchers show for the first time that smaller galaxies around the Milky Way are indeed shredded to pieces by the massive tidal interactions they have with out home galaxy.The research, which will be published in the upcoming October issue of the esteemed Astrophysical Journal, also shows that massi... |
13 September 2010
07:53 GMT |
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Astronomers observed a long time ago the fact that galaxies like to “hang out” in groups. They may be brought closer together by the streams of dark matter they are navigating, or some may have simply drawn each other via gravitational forces, but the point is that they appear to be a “social”... |
5 March 2010
05:40 GMT |
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For a long time, astronomers and astrophysicists have been proposing that our galaxy, the Milky Way, in fact formed by cannibalizing on smaller, dwarf galaxies in its surroundings. Now, recent observations appear to confirm this hypothesis, revealing old, ancient stars at the outskirts of our galaxy. While looking at... |
4 March 2010
03:06 GMT |
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New data from the Hubble Space Telescope appears to indicate that many stars and globular star clusters that exist in our galaxy were not born here, but arrived from elsewhere. Observations showed that these bodies were most likely generated in distant regions, and then traveled all the way to their current location.... |
23 February 2010
09:01 GMT |
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When the Universe was just a fraction of its current age, and galaxies such as the one we inhabit were nowhere to be seen, stars formed inside peculiar structures, that have long since disappeared. But astronomer Deidre Hunter, who is based at the Lowell Observatory, has spent more than 17 years studying one of the c... |
6 February 2010
06:56 GMT |
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For many years, astronomers have been trying to explain how it is that dwarf galaxies, the small companions around more massive systems, tend to have less mass and less stars at their cores. Traditionally, it's the other way around, with massive galaxies such as the Milky Way featuring a core that is both more m... |
14 January 2010
03:08 GMT |
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While investigating nearby galaxies, including our closest neighbor Andromeda, astronomers were surprised to discover that most of them showed signs of having gobbled down smaller galaxies. The structures, too small to make it on their own around the giants they orbited, were cannibalized and became a part of the mas... |
11 January 2010
11:05 GMT |
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Until recently, the widely held view on galactic formation and development was that these space structures tended to form from primordial building blocks. Experts thought that, in the billions of years that passed since the Universe first appeared, these blocs evolved on their own, and that making them out was imposs... |
30 December 2009
07:05 GMT |
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Astronomers believe that, many years ago, when our galaxy was still in its infancy, it collided with a dwarf cousin, giving birth to a host of processes, including the development of a stellar cluster. As the Milky Way went on to grow to the impressive sizes it has today, the “fossilized” stellar cluster ... |
26 November 2009
02:21 GMT |
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A new image, released by the European Southern Observatory (ESO), reveals the glow of the elusive galaxy NGC 6822, which is a companion of the Milky Way, and a member of the local galactic group. The formation is visible as a glow beneath the layer of stars that can be found in the immediate vicinity of our own galax... |
14 October 2009
16:51 GMT |
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As a massive galaxy, the Milky Way is surrounded and orbited by a large number of smaller, dwarf galaxies. Ever since astronomers discovered this, they have been trying to determine what faith awaits our galaxy, and if future collisions and bombardments on the Milky Way's inner disk are possible. A new study has... |
1 September 2009
03:39 GMT |
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The discovery of a new fast moving dwarf galaxy, named Andromeda XIV, which seems to orbit our closest spiral galaxy, Andromeda, also known as M31 amongst astronomers, questions again the scientists' calculations regarding the mass of M31, and may provide new information about the nature of such rogue galaxies a... |
22 November 2007
02:21 GMT |
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