Tag Archives: UGC

Hubble captures UGC 5460: A dazzling view of a face-on spiral galaxy

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Astronomers using the NASA/ESA Hubble Space Telescope have produced an excellent image of the Spiral Galaxy UGC 5460.

This Hubble image shows the UGC 5460, a spiral galaxy about 60 million light years away in the URSA major constellations. Image credits: NASA/ESA/Hubble/W. Jacobson-Galán/A. Filippenko/J. Mauerhan.

UGC 5460 is It was located His major in Ursa is about 60 million light years.

Otherwise known as IRAS F10048+5205, Leda 29469, or TC 132, the galaxy is seen to be very close to face.

Two supernova explosions, named in 2011 and 2015 SN 2011ht and SN 2015ASwere observed with UGC 5460, respectively.

“Hubble targeted this galaxy because of the explosion of these two stars, collecting data from three observational programs aimed at studying different types of supernova,” says Hubble astronomers. said in a statement.

“SN 2015as was what is known as the Core Collapse Supernova. The intense events occur when the solar nucleus collapses under its own gravity, and begins to rebound material outside the core. It's an explosion.”

“The Hubble observations in SN 2015A help researchers understand what happens when the supernova's expanding shock wave collides with the gas surrounding the exploded star.”

“SN 2011HT may have been a Core Collapse Supernova, but it could also be a con man called the Luminous Blue variable.”

“The bright blue variable is a rare star that experiences eruptions so large that it can mimic a supernova.”

“Crucially, while these eruptions are intact, bright blue variables appear, but stars going to supernovae are not.”

“Hubble searches for stellar survivors at the location of SN 2011HT and it is possible that the explosion's identity will finally be revealed.”

The color image of the UGC 5460 is Hubble Wide Field Camera 3 (WFC3) UV, near-infrared, and optical parts of the spectrum.

“The image combines light of four different wavelengths to reveal the central bar of the star, a winding spiral arm, and a bright blue star cluster on the UGC 5460,” the astronomer said.

“In the upper left corner of this image there is an object much closer to it. It's a star just 577 light years away in our own galaxy.”

Source: www.sci.news

UGC 3478 observed by the Hubble Space Telescope

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Stunning new images taken by the NASA/ESA Hubble Space Telescope show spiral galaxy UGC 3478 in great detail.

This Hubble Space Telescope image shows UGC 3478, a spiral galaxy located 128 million light-years away in the constellation Camelopardalis. Image credit: NASA / ESA / Hubble / M. Koss / A. Barth.

3478 posts It is located in the constellation Camelopardalis and is approximately 128 million light years away from Earth.

Also known as LEDA 19228, INTREF 304, IRAS 06280+6342, Seyfert galaxyA type of galaxy centered around an active galactic nucleus (AGN).

“If you look at the long, star-filled spiral arms and the dark threads of dust that crisscross them, your eye may be drawn to a bright spot at the center of UGC 3478,” the Hubble astronomers said.

“This spot is the core of a galaxy, and there's something very special about it: it's a growing massive black hole, what astronomers call an AGN.”

“As with other active galaxies, the brightness seen here hides a supermassive black hole at the galaxy's centre,” the researchers added.

“A disk of gas spirals into this black hole, and as the material collides and heats up, it emits extremely intense radiation.”

“The spectrum of this radiation includes hard X-ray emission, which makes it clearly distinguishable from stars in the galaxy.”

“Despite the strong brightness of the compact central region, the surrounding galactic disk is still clearly visible, making it a Seyfert galaxy.”

“Astronomers know that many active galaxies are far away from Earth because their nuclei are so bright that they stand out next to other fainter galaxies.”

“Located 128 million light-years away, UGC 3478 is Earth's very own neighbour,” the astronomers said.

The new image of UGC 3478 is Hubble's Advanced Camera for Surveys (ACS) is in the near infrared and optical parts of the spectrum.

Two filters were used to sample different wavelengths, and color was generated by assigning a different hue to each monochromatic image associated with an individual filter.

“The data used to create this image come from Hubble Space Telescope surveys of nearby powerful AGNs discovered in such relatively high-energy X-rays and are expected to help us understand how galaxies interact with their central supermassive black holes,” the researchers said.

Source: www.sci.news

New Images of UGC 4879 Captured by Hubble Space Telescope

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Hubble astronomers have released a stunning new image of the dwarf irregular galaxy UGC 4879, taken by the NASA/ESA Hubble Space Telescope.

This Hubble Space Telescope image shows irregular dwarf galaxy UGC 4879, about 3.6 million light-years away in the constellation Ursa Major. Image credit: NASA / ESA / Hubble Space Telescope / K. Chiboucas, NOIRLab and Gemini North / M. Monelli, Canarian Astrophysics Institute / Gladys Kober, NASA and Catholic University.

UGC 4879 is an irregular dwarf galaxy in the constellation Ursa Major.

Also known as VV124 and LEDA 26142, this galaxy is quite isolated.

It lies 3.6 million light years from our Milky Way galaxy and 3.9 million light years from the Andromeda galaxy.

Dwarf galaxy Leo A, located about 1.6 million light-years away, is UGC 4879's closest neighbor.

This isolation makes UGC 4879 an ideal laboratory to study primordial star formation, without the complications of interactions with other galaxies.

There are only two other galaxies in the Local Group that have a similar, though slightly lower, isolation to UGC 4879: DDO 210 and SgrDIG, which are located in the opposite direction from UGC 4879.

“UGC 4879 is an isolated dwarf galaxy that lies just outside our Local Group of galaxies,” Hubble astronomers said in a statement.

“Because of its isolation, we are studying UGC 4879 to determine whether it is an old, relatively undisturbed galaxy.”

“Theories suggest that the least massive dwarf galaxies may have formed first.”

“If UGC 4879 is a relic from the early universe, it may offer clues about the hierarchy and evolution of galaxies, galaxy clusters, and even the universe itself.”

This image of UGC 4879 combines data from two Hubble observing programs focused on learning more about how dwarf galaxies form and evolve.

Source: www.sci.news

Hubble’s Close-Up of UGC 8091

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The Hubble team has released a close-up image of UGC 8091, a dwarf irregular galaxy that resembles a glittering festive snow globe.

This Hubble image shows UGC 8091, a dwarf irregular galaxy about 7 million light-years away in the constellation Virgo. The color images were created from separate exposures taken with Hubble’s Advanced Survey Camera (ACS) and Wide Field Camera 3 (WFC3). Image credits: NASA / ESA / Hubble / Yumi Choi, NSF’s NOIRLab / Caroline Gilbert, STScI / Julien Dalcanton, Center for Computational Astrophysics and University of Washington Flatiron Institute.

UGC 8091 It is located in the constellation Virgo, about 7 million light years away from Earth.

Also known as GR 8, DDO 155, LEDA 44491, or TC 257, this galaxy discovered It was discovered by astronomers at Lick Observatory in the 1940s and 1950s.

“Unlike other galaxies whose stars appear more regular, UGC 8091 is classified as an irregular galaxy,” said the Hubble astronomer.

“It’s not hard to see why. The stars that make up this cluster look more like a tangle of bright string lights than a galaxy.”

“While some irregular galaxies are thought to have become entangled due to intense internal activity, others are known to have formed through interactions with neighboring galaxies.”

“The result is a class of galaxies with a wide range of sizes and shapes, including these galaxies with diffuse and scattered stars.”

UGC 8091, also classified as a dwarf irregular galaxy, contains about 1 billion stars.

“That’s a huge amount of light, but not for a galaxy. Our Milky Way galaxy is thought to contain more than 100 billion stars, and other galaxies have trillions. “There could be as many stars as possible,” the astronomers said.

“Dwarf galaxies often orbit around larger galaxies, and their lower masses make them vulnerable to interference and consumption from larger neighbors, and in the process they destroy twisted dwarfs like UGC 8091. A galaxy is generated.”

“This type of galaxy is thought to have characteristics similar to the very old and distant galaxies seen in deep-field images.”

“Investigating the composition of dwarf galaxies and their stars, particularly their low metal content, could help uncover evolutionary links between these ancient galaxies and more modern galaxies like ours. We hope it will be helpful.”

To do this, researchers have carefully examined UGC 8091’s colorful stars.

“By using filters that restrict the light entering Hubble’s instruments to very specific wavelength ranges, we can pick out different features of galaxies,” the researchers said.

“These filtered images can be recombined to create a full-color image. An astonishing 12 filters are combined to produce this image, capturing light from the mid-UV to the red end of the visible spectrum. Contributing.”

“The blooming red spots represent light emitted by excited hydrogen molecules in hot, energetic stars formed in recent starbursts.”

“The other sparks in this image are a mixture of older stars.”

Source: www.sci.news