Datei:ARP321 - HST- Heic2205a.jpg

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Beschreibung

English: The Hickson Compact Group 40

The NASA/ESA Hubble Space Telescope is celebrating its 32nd birthday with a stunning look at an unusual close-knit collection of five galaxies, called the Hickson Compact Group 40. This snapshot reflects a special moment in their lifetimes as they fall together before they merge.

Credit:

NASA, ESA and STScI

Coordinates
Position (RA):  	9 38 54.97
Position (Dec): 	-4° 51' 5.03"
Field of view:  	2.66 x 2.50 arcminutes
Orientation:    	North is 41.6° left of vertical

Colours & filters Band	Wavelength	Telescope
Optical B       	475 nm   	Hubble Space Telescope WFC3
Optical V       	606 nm   	Hubble Space Telescope WFC3
Optical H-alpha + NII 	656 nm   	Hubble Space Telescope WFC3
Optical I       	814 nm   	Hubble Space Telescope

WFC3

.

Datum

19 April 2022 (released)

Quelle

https://esahubble.org/images/heic2205a/

Urheber

Credit:

NASA, ESA and STScI

Genehmigung
(Weiternutzung dieser Datei)

Namensnennung

ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.

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The full image or footage credit must be presented in a clear and readable manner to all users, with the wording unaltered (for example: "ESA/Hubble"). Web texts should be credited to ESA/Hubble (except when used by media). The credit should not be hidden or disassociated from the image footage. Links should be active if the credit is online. See the usage rights Q&A section on the ESA copyright page for guidance.
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If images or visuals are changed significantly from the original work (apart from resizing, cropping), we suggest that the changes are mentioned after the credit line. For example "Original image by ESA/Hubble (M. Kornmesser), warping and recolouring by NN".

Notes:

Note that this general permission does not extend to the use of ESA/Hubble's logo, which shall remain protected and may not be used or reproduced without prior and individual written consent of ESA/Hubble.
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By reproducing ESA/Hubble material, in part or in full, the user acknowledges the terms on which such use is permitted.

Diese Datei ist lizenziert unter der Creative-Commons-Lizenz „Namensnennung 4.0 international“.

Namensnennung: Credit: NASA, ESA and STScI

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	Version vom	Vorschaubild	Maße	Benutzer	Kommentar
aktuell	00:26, 21. Apr. 2022		4.021 × 3.773 (3,89 MB)	Fabian RRRR	== {{int:filedesc}} == {{Information \|description={{en\|1='''The Hickson Compact Group 40 The NASA/ESA Hubble Space Telescope is celebrating its 32nd birthday with a stunning look at an unusual close-knit collection of five galaxies, called the Hickson Compact Group 40. This snapshot reflects a special moment in their lifetimes as they fall together before they merge. Credit: NASA, ESA and STScI Coordinates Position (RA): 9 38 54.97 Position (Dec): -4° 51' 5.03" Field of view:...

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Hickson Compact Group

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Verwendung auf tr.wikipedia.org
- Yoğun Hickson Grubu

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Bildtitel	The NASA/ESA Hubble Space Telescope is celebrating its 32nd birthday with a stunning look at an unusual close-knit collection of five galaxies, called the Hickson Compact Group 40. This snapshot reflects a special moment in their lifetimes as they fall together before they merge.
Fotograf	Space Telescope Science Institute Office of Public Outreach
Urheberrechte	Public
Quelle	ESA/Hubble
Namensnennung/Veröffentlicher	NASA, ESA and STScI
Kurztitel	The Hickson Compact Group 40
Nutzungsbedingungen	Creative Commons Attribution 4.0 International License
Erfassungszeitpunkt	16:00, 19. Apr. 2022
JPEG-Dateikommentar	NASA is celebrating the Hubble Space Telescope’s 32nd birthday with a stunning look at an unusual close-knit collection of five galaxies, called the Hickson Compact Group 40. This menagerie includes three spiral-shaped galaxies, an elliptical galaxy, and a lenticular (lens-like) galaxy. Somehow, these different galaxies crossed paths in their evolution to create an exceptionally crowded and eclectic galaxy sampler. Caught in a leisurely gravitational dance, the whole group is so crowded that it could fit within a region of space that is less than twice the diameter of our Milky Way’s stellar disk. Though such cozy galaxy groupings can be found in the heart of huge galaxy clusters, these galaxies are notably isolated in their own small patch of the universe, in the direction of the constellation Hydra. One possibility is that there’s a lot of dark matter (an unknown and invisible form of matter) associated with these galaxies. If they come close together, then the dark matter can form a big cloud within which the galaxies are orbiting. As the galaxies plow through the dark matter they feel a frictional force due to its gravitational effects. This slows their motion and makes the galaxies lose energy so they fall together. Therefore, this snapshot catches the galaxies at a very special moment in their lifetimes. In about 1 billion years they will eventually collide and merge to form a giant elliptical galaxy. Astronomers have studied this compact galaxy group not only in visible light, but in radio, infrared, and X-ray wavelengths. Almost all of them have a compact radio source in their cores, which could be evidence for the presence of super-massive black holes. X-ray observations show that the galaxies have been gravitationally interacting due to the presence of a lot of hot gas among the galaxies. Infrared observations reveal clues to the rate of new star formation. Though over 100 such compact galaxy groups have been cataloged in sky surveys going back several decades, Hickson Compact Group 40 is one of the most densely packed. Observations suggest that such tight groups may have been more abundant in the early universe and provided fuel for powering black holes, known as quasars, whose light from superheated inflating material blazed across space. Studying the details of galaxies in nearby groups like this help astronomers sort out when and where galaxies assembled themselves, and what they are assembled from. “I remember seeing this on a sky survey and saying, ‘wow look at that!’” said Paul Hickson of the University of British Columbia, Vancouver, Canada. “All that I was using at the time was a big plastic ruler and a magnifying glass while looking over sky survey prints.” He re-discovered the group by browsing through a collection of peculiar galaxies first published by Halton Arp in 1966. Hubble was deployed into orbit around Earth by the NASA astronauts aboard the space shuttle Discovery, on April 25, 1990. The telescope has taken 1.5 million observations to date, of approximately 50,000 celestial targets. This treasure trove of knowledge about the universe is stored for public access in the Mikulski Archive for Space Telescopes, at the Space Telescope Science Institute in Baltimore, Maryland. Hubble’s unique capabilities in observing visible and ultraviolet light are a critical scientific complement to the infrared light observations of the new Webb Space Telescope. The Hubble Space Telescope is a project of international cooperation between NASA and ESA (European Space Agency). NASA’s Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope. The Space Telescope Science Institute (STScI) in Baltimore, Maryland, conducts Hubble science operations. STScI is operated for NASA by the Association of Universities for Research in Astronomy, in Washington, D.C.
Software	Adobe Photoshop 23.2 (Macintosh)
Speicherzeitpunkt	12:40, 22. Mär. 2022
Eindeutige Kennung des ursprünglichen Dokuments	xmp.did:57e2b723-54c0-4f8a-802a-7b600ab3eed4
Digitalisierungszeitpunkt	10:26, 6. Dez. 2021
Datum, zu dem die Metadaten letztmalig geändert wurden	08:40, 22. Mär. 2022
Urheberrechtsstatus	Urheberrechtsstatus nicht festgelegt
Stichwörter	HCG 40 Arp 321 VV 116
Kontaktinformationen	outreach@stsci.edu https://esahubble.org ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States 410-338-4444
IIM-Version	4

Datei:ARP321 - HST- Heic2205a.jpg

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