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#arpgalaxy

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Arp Bot 🤖

JWST NIRCam and MIRI image of Arp 142, also known as NGC 2936, NGC 2937, and UGC 5130, or the Penguin and the Egg.

The Penguin is a spiral galaxy whose shape has been distorted by the gravity of the elliptical Egg galaxy. The two are about 100,000 light-years apart and completed a close pass between 25 and 75 million years ago.

Credit: NASA, ESA, CSA, STScI
Source: webbtelescope.org/contents/med

Arp 142, two interacting galaxies, observed in near- and mid-infrared light. At left is NGC 2937, nicknamed the Egg. Its center is brighter and whiter. There are six diffraction spikes atop its gauzy blue layers. At right is NGC 2936, nicknamed the Penguin. Its beak-like region points toward and above the Egg. Where the eye would be is a small, opaque yellow spiral. The Penguin’s distorted arms and orange dust lanes from the bird’s beak, back, and tail. The tail is wide and layered, like a beta fish’s tail. A semi-transparent blue hue traces the Penguin and extends from the galaxy, creating an upside-down U over top of both galaxies. At top right is another galaxy seen from the side, pointing roughly at a 45-degree angle. It is largely light blue. Its length appears approximately as long as the Egg’s height. One foreground star with large, bright blue diffraction spikes appears over top of the galaxy and another near it. The entire black background is filled with tiny, extremely distant galaxies.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Hubble image of Arp 202, also known as NGC 2719 and NGC 2719A.

This pair of galaxies, an edge-on disk galaxy near the bottom of the frame and a smaller irregularly shaped galaxy above it, had a recent interaction which likely severely perturbed both galaxies. A small tidal tail trails off to the upper left corner of the image.

Credit: NASA, ESA, STScI, Julianne Dalcanton, Meli thev, Wikimedia Commons
Source: commons.wikimedia.org/wiki/Fil

A greyscale image of two galaxies. At the center of the frame is a disk galaxy seen edge-on. It is brightest at the center, but many bright star clusters dot the galaxy above and below the plane of the disk. Above and to the right is a second smaller galaxy that is roughly circular. On the outside of the circle is an irregular ring of star clusters. A line of stars and gas is just barely visible trailing from the point the two galaxies meet to the upper left corner of the frame. The image has a noticeable amount of detector noise which has not been removed.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Hubble image of Arp 55, also known as UGC 4881.

This pair of galaxies is about halfway through a merger. Their cores are separate, but their disks are overlapping.

The bright tail that curves around the bottom of the galaxies is dotted with young, blue star clusters, likely the result of the merger triggering a burst of star formation.

Credit: NASA, ESA, STScI
Source: science.nasa.gov/asset/hubble/

In the center of the frame are two merging galaxies that form a C-shape that looks a little like a curled up shrimp. In the center of the C, or the body of the shrimp, is the remnants of one galaxy's nucleus, partially obscured by a swirl of dust and blue star clusters. At the top of the C, or the head of the shrimp, is the second galaxy nucleus. A haze of older yellow stars and dust appears above the second nucleus. At the other end of the remnant, a thin tail of blue star clusters trails off to the right. At the end of the tail, another dusty haze of yellow stars, curves back upwards towards the shrimp's "head". Two other spiral galaxies appear separated from the merging galaxies in the lower left corner of the frame. The black background of space is dotted with tiny background galaxies and foreground stars.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Hubble image of Arp 282, also known as NGC 169 and NGC 169A.

Both NGC 169 (bottom) and NGC 169A (top) have actively accreting supermassive black holes in their centers. The two galaxies are interacting, creating delicate streams of stars, gas and dust that visibly link the pair.

Credit: ESA/Hubble & NASA, J. Dalcanton, Dark Energy Survey, DOE, FNAL/DECam, CTIO/NOIRLab/NSF/AURA, SDSS, J. Schmidt
Source: esahubble.org/images/potw2206a/

A large spiral galaxy is seen in the center of the frame. It's tilted at an angle, so that it's disk appears as an oval rather than a circle. Dramatic dust lanes cross in front of the center of the galaxy and are backlit by a haze of yellow-white stars. Above the spiral is a smaller disk galaxy seen in shades of blue white. It appears to be at almost a right angle to the large spiral, falling into the larger galaxy. The two galaxies are connected by a bridge of dusty tendrils, which are also backlit by the main galaxy. This galaxy pair looks a lot more 3D than most interacting galaxies because of their angles and the backlighting effect.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Hubble image of Arp 82, also known as NGC 2535 and NGC 2536.

NGC 2535 is the grand design spiral at center and NGC 2536 is its smaller companion at the end of one of its arms.

The larger galaxy's inner arms have evenly spaced "beads on a string" star clusters. This suggests recent gravitational interactions created shocks that led to a burst of star formation.

Credit: NASA, ESA, STScI, J. Dalcanton, Judy Schmidt
Source: flickr.com/photos/geckzilla/48

A black and white image of a pair of interacting spiral galaxies. In the center of the frame is the larger galaxy, a barred spiral galaxy seen face-on. It has a bright center that transitions into a small bar, crossed by filamentary, dark dust lanes. A ring of stars and star clusters circles the bar, giving the inner part of the galaxy a shape that resembles an eye. Two long spiral arms emerge from the ring, dotted with bright star clusters and outlined by dust filaments, forming an S-shape. The upper arm trails off in a faint arc to the right. The bottom arm appears to connect to its companion galaxy in the lower part of the frame. This galaxy is smaller and less well defined, but is still clearly a two-armed spiral with a bright center and wider, hazy arms. The black background of space is dotted with foreground stars and tiny background galaxies. A few particularly bright stars with diffraction spikes are seen to the right of the center galaxy.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Gemini South image of Arp 271, also known as NGC 5426 and NGC 5427.

This pair of interacting galaxies are tugging on each other with gravity, which has begun to distort their features. We can see this in the bridge of stars connecting the spiral arms of NGC 5426, the upper left galaxy, with NGC 5427, the lower right galaxy.

Credit: International Gemini Observatory, NOIRLab, NSF, AURA
Source: noirlab.edu/public/images/gemi

Two similar-looking spiral galaxies take up most of the frame. They both have bright, yellow-white central cores and well-defined spiral arms dotted with pink star forming regions. NGC 5427 is a nearly face-on spiral galaxy at lower left. NGC 5426 is a more oblique galaxy at upper right. The two spiral arms on the upper side of NGC 5426 appear as a bridge that connects with NGC 5427. The black background of space is dotted with stars and small background galaxies.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Hubble image of Arp 297, also known as NGC 5754 and NGC 5752.

NGC 5754, the large spiral galaxy, has kinked arms just beyond its inner ring. They are a result of interactions with its companion galaxy, NGC 5752, the smaller galaxy at bottom left. The same interactions triggered a starburst in NGC 5752, creating bright star clusters around its core.

Credit: NASA, ESA, the Hubble Heritage team, W. Keel
Source: science.nasa.gov/asset/hubble/

A pair of galaxies, a large face-on barred spiral galaxy and a smaller edge-on disk galaxy. The upper portion of the frame is dominated by the spiral galaxy NGC 5754. It has a bright, pale yellow, circular core that transitions into an almost vertical bar structure. Two well-defined spiral arms circle around the core counter-clockwise, beginning at the ends of the bar. The arms both complete one revolution around the core and then fade out. They are dotted with pale blue star clusters. At about 5 and 7 o'clock on the bottom of the galaxy, the spiral arms have small kinks, creating what looks like straight segments in the otherwise smoothly curving arms. Overall, the galaxy looks a little like a cinnamon roll. In the bottom left corner of the frame is the smaller companion galaxy NGC 5752. It is oval-shaped, with the long axis almost vertical, running parallel to the bar of the large spiral. On a background of pale yellow stars is a line of blue dots, which are star clusters, running through the long axis in the center of the galaxy. Below this is a dark brown dust lane.
#ArpGalaxy#Galaxy#Space
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Hubble image of Arp 195, also known as UGC 4653.

This image of three interacting galaxies is from the Establishing HST's Low Redshift Archive of Interacting Systems snapshot program. These programs fill in gaps in Hubble's schedule (2-3 percent of the available time) with short observations.

In this image, the luminosity is from Hubble ACS/WFC observations, and color is from DECam and SDSS.

Credit: ESA, NASA, J. Dalcanton
Source: esahubble.org/images/potw2130a/

Three interacting galaxies form a roughly horizontal line. The galaxy on the left is a face-on barred spiral. It has a bright core that transitions into a pale yellow oval-shaped roughly horizontal bar. Surrounding and outlining the bar is a ring of blue stars and star clusters. Emerging from the ends of the bar are two spiral arms that form a backward S-shape. The top arm curves counterclockwise from about 3 o'clock to 9 o'clock. The bottom arm begins at about 9 o'clock, curving around to intersect or pass behind the other galaxies at about 4 o'clock. The middle galaxy is seen as a roughly horizontal, pale yellow oval. It overlaps with the other two galaxies to its left and right. Crossing the oval are several wide, brown dust filaments. The galaxy on the right is perhaps a very disturbed barred spiral. It has a bright center, which transitions into a nearly vertical pale yellow bar structure. One spiral arm begins at the top of the bar, and then plunges down a ridiculous amount, forming a vertical line that is about three times the length of the bar, reaching nearly the bottom of the frame. It is made of a haze of blue stars and star clusters. A dark brown dust filament crosses the bar and then swoops down with the arm, forming an upside down U shape. A bright foreground star with four diffraction spikes sits at the left edge of the frame. The black background of space is dotted with a few additional foreground stars and many tiny background galaxies.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Dark Energy Camera image of Arp 289, also known as NGC 3981.

The galaxy's irregular arms are likely due to gravitational interactions with a neighboring galaxy.

NGC 3981 is a member of the NGC 4038 galaxy group. This group also contains the Antennae Galaxies, another famous example of galactic interactions.

Credit: Dark Energy Survey, DOE, FNAL, DECam, CTIO, NOIRLab, NSF, AURA, R. Colombari, M. Zamani
Source: noirlab.edu/public/images/iotw

The yellow core of a disrupted spiral galaxy is surrounded by irregular, translucent spiral arms. The inner part of the galaxy is seen at an angle, so that it appears oval-shaped rather than circular. Dark brown dust lanes cross a yellow haze of older stars. The blue arms unfurl from the center, like paint flung out of a spinning canvas. They are dotted with blue star clusters. The arms dip down more at the bottom of the frame. The black background of space is filled with foreground stars and tiny background galaxies.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Kitt Peak National Observatory image of Arp 104, also known as NGC 5216 and NGC 5218, or Keenan’s System.

A bridge of stars and gas about 7,000 light years wide and 150,000 light years long connects the two galaxies.

It may have been created about 300 million years ago when the disk galaxy NGC 5218 (top) and elliptical galaxy NGC 5216 (bottom) passed by one another.

Credit: NOIRLab, NSF, AURA, T.A. Rector, H. Schweiker
Source: noirlab.edu/public/images/noao

Two galaxies connected by a long, thin stream of gas and stars that form a vertical line. The first galaxy, at the top of the frame, appears to be a disturbed spiral galaxy. It has a swirling disk made of a haze of pale yellow stars accented by faint brown dust lanes. The outer parts of the disk are surrounded by a haze of pale blue-white stars, including a tidal tail or arm that swirls from about the 3 o'clock to about 12 o'clock position. A long, thin, translucent line, made of a haze of stars and gas, connects the bottom of the top galaxy to the top of its companion below. The second galaxy is near the bottom of the frame. It is roughly circular and has a bright, pale yellow center that gradually fades out and becomes more translucent near its edges. The thin line of stars and gas appears to emerge from the bottom of the galaxy, arcing slightly up as it exits. The black background of space is filled with stars and tiny background galaxies.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Hubble image of Arp 116, also known as M60 and NGC 4647.

M60 is a giant elliptical galaxy. The smaller spiral NGC 4647 is about the size of our galaxy, the Milky Way. While it is not obvious, the two galaxies are just beginning to interact.

The stripped core of another galaxy, which contains a supermassive black hole, is seen as a white dot in the lower right part of M60.

Credit: NASA, ESA, STScI
Source: science.nasa.gov/asset/hubble/

A large elliptical galaxy fills most of the frame. It has a bright yellow-white center that is surrounded by a halo made of a haze of stars. It is more opaque at its center and gradually becomes more translucent near its edge. In its lower right is a yellow-white dot. In the upper left corner is a smaller face-on spiral galaxy. Its somewhat poorly defined spiral arms curve around its bright center. The arms are dotted with blue stars and star clusters and are crossed by a series of filamentary dust lanes. The black background of space is dotted with foreground stars and tiny background galaxies.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

Composite image of Arp 298, also known as NGC 7469 and IC 5283.

X-rays from Chandra (purple) are overlaid on a Hubble visible/infrared and JWST infrared image of NGC 7469.

Large, red diffraction spikes and X-ray light near the center signal the presence of a supermassive black hole.

Credit: NASA, CXC, X. Xu; NASA, ESA, UVA, NRAO, A. S. Evans, Hubble Heritage team; NASA, ESA, CSA, L. Armus, A. S. Evans; J. Major
Source: chandra.harvard.edu/photo/2024

This composite image features a spiral galaxy, viewed face on. Here, two blue and red speckled arms spiral around a black hole at the heart of the galaxy, known as NGC 7469. Faint clouds of pale blue mist trace the lines of the speckled arms, muting the colors in the image. The black hole at the center of the galaxy is appears as a bright white dot encircled by a mottled, neon purple ring. This dot and ring are X-ray emission from hot gas around the black hole. Due to the perfect face-on angle, eight red diffraction spikes (six big and two small) radiate from the glowing black hole, like laser beams.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

SDSS image of Arp 82, also known as NGC 2535 and NGC 2536.

Simulations suggest the two galaxies are in the early stages of a merger. The pair already experienced one collision and are just about to collide again.

The larger galaxy's inner arms have evenly spaced "beads on a string" star clusters. This suggests the recent gravitational interactions created shocks that led to a burst of star formation.

Credit: SDSS
Source: legacysurvey.org/viewer?ra=122

A somewhat low-res, grainy image of a pair of interacting spiral galaxies. In the center of the frame is the larger galaxy, a barred spiral galaxy seen face-on. It has a bright yellow center that transitions into a small yellow bar. A ring of blue stars and star clusters circles the bar, giving the inner part of the galaxy a shape that resembles an eye. Two long spiral arms emerge from the ring, dotted with blue star clusters, forming an S-shape. The upper arm trails off in a faint arc to the right. The bottom arm appears to connect to its companion galaxy in the lower part of the frame. This galaxy is smaller and less well defined, but is still clearly a two-armed spiral with a bright center and wider, hazy arms. The black background of space is dotted with foreground stars and tiny background galaxies. A few particularly bright stars with four diffraction spikes are seen to the right of the center galaxy.
#ArpGalaxy#Galaxy#Space
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Arp Bot 🤖

JWST NIRCam image of Arp 142, also known as NGC 2936 and NGC 2937, or the Penguin and the Egg.

The blue haze in the distorted spiral galaxy, elliptical galaxy, and the bridge connecting the two, are stars. The red filaments are glowing dust. The edge-on galaxy at top right is in the foreground, significantly closer to us than the Penguin and the Egg.

Credit: NASA, ESA, CSA, STScI
Source: webbtelescope.org/contents/med

Arp 142, two interacting galaxies, observed in near-infrared light. At left is NGC 2937, nicknamed the Egg. Its center is brighter and whiter. There are six diffraction spikes atop its gauzy blue layers. At right is NGC 2936, nicknamed the Penguin. Its beak-like region points toward and above the Egg. Where the eye would be is a small, opaque yellow spiral. The Penguin’s distorted arms and thin red dust lanes from the bird’s beak, back, and tail. The tail is wide and layered, like a beta fish’s tail. A semi-transparent blue hue traces the Penguin and extends from the galaxy, creating an upside-down U over top of both galaxies. At top right is another galaxy seen from the side, pointing roughly at a 45-degree angle. It is largely light blue. Its length appears approximately as long as the Egg’s height. One foreground star with large, bright blue diffraction spikes appears over top of the galaxy and another near it. The entire black background is filled with tiny, extremely distant galaxies.
#ArpGalaxy#Galaxy#Space
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