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Centaurus. The most characteristic signature of these galaxies is that they harbour very active star-formation regions. This is in spite of their low dust content and comparative lack of elements heavier than hydrogen and helium, which are usually the basic ingredients for star formation. These galaxies contain molecular clouds that are quite similar to the pristine clouds that formed the first stars in the early
Universe, which were devoid of dust and heavier elements. Hence, astronomers consider the BCD galaxies to be an ideal testbed for better understanding the primordial star-forming process. NGC 5253 does contain some dust and heavier elements, but significantly less than the Milky Way galaxy. Its central regions are dominated by an intense star forming region that is embedded in an elliptical main body, which appears red in Hubble’s image. The central starburst zone consists of a rich environment of hot, young stars concentrated in star clusters, which glow in blue in the image. Traces of the starburst itself can be seen as a faint and diffuse glow produced by the ionised oxygen gas. The true nature of BCD galaxies has puzzled astronomers for a long time. Numerical simulations following the current leading cosmological theory of galaxy formation, known as the Lambda Cold Dark Matter model, predict that there should be far more satellite dwarf galaxies orbiting big galaxies like the Milky Way. Astronomers refer to this discrepancy as the Dwarf Galaxy Problem. This galaxy is considered part of the Centaurus A/Messier 83 group of galaxies, which includes the famous radio galaxy Centaurus A and the spiral galaxy Messier 83. Astronomers have pointed out the possibility that the peculiar nature of NGC 5253 could result from a close encounter with Messier 83, its closer neighbour. This image was taken with the Hubble’s Advanced Camera for Surveys, combining visible and infrared exposures. The field of view in this image is approximately 3.4 by 3.4 arcminutes. A version of this image was entered into the Hubble’s Hidden Treasures image processing competition by contestant Nikolaus Sulzenauer.
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The NASA/ESA Hubble Space
Telescope provides us this week with an impressive image of the irregular galaxy NGC 5253. NGC 5253 is one of the nearest of the known Blue Compact Dwarf (BCD) galaxies, and is located at a distance of about 12 million light-years from Earth in the southern constellation of
175:
This galaxy is considered part of the
Centaurus A/Messier 83 group of galaxies, which includes the famous radio galaxy Centaurus A and the spiral galaxy Messier 83. Astronomers have pointed out the possibility that the peculiar nature of NGC 5253 could result from a close encounter with Messier 83,
171:
The true nature of BCD galaxies has puzzled astronomers for a long time. Numerical simulations following the current leading cosmological theory of galaxy formation, known as the Lambda Cold Dark Matter model, predict that there should be far more satellite dwarf galaxies orbiting big galaxies like
167:
NGC 5253 does contain some dust and heavier elements, but significantly less than the Milky Way galaxy. Its central regions are dominated by an intense star forming region that is embedded in an elliptical main body, which appears red in Hubble’s image. The central starburst zone consists of a rich
159:
NGC 5253 is one of the nearest of the known Blue
Compact Dwarf (BCD) galaxies, and is located at a distance of about 12 million light-years from Earth in the southern constellation of Centaurus. The most characteristic signature of these galaxies is that they harbour very active star-formation
163:
These galaxies contain molecular clouds that are quite similar to the pristine clouds that formed the first stars in the early
Universe, which were devoid of dust and heavier elements. Hence, astronomers consider the BCD galaxies to be an ideal testbed for better understanding the primordial
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1008:
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272:– You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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environment of hot, young stars concentrated in star clusters, which glow in blue in the image. Traces of the starburst itself can be seen as a faint and diffuse glow produced by the ionised oxygen gas.
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This image was taken with the Hubble’s
Advanced Camera for Surveys, combining visible and infrared exposures. The field of view in this image is approximately 3.4 by 3.4 arcminutes.
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regions. This is in spite of their low dust content and comparative lack of elements heavier than hydrogen and helium, which are usually the basic ingredients for star formation.
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A version of this image was entered into the Hubble’s Hidden
Treasures image processing competition by contestant Nikolaus Sulzenauer.
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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
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The NASA/ESA Hubble Space
Telescope provides us this week with an impressive image of the irregular galaxy NGC 5253.
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If the file has been modified from its original state, some details may not fully reflect the modified file.
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The following pages on the
English Knowledge (XXG) use this file (pages on other projects are not listed):
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the Milky Way. Astronomers refer to this discrepancy as the Dwarf Galaxy
Problem.
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Click on a date/time to view the file as it appeared at that time.
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ESA/Hubble & NASA Acknowledgement: N. Sulzenauer
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ESA/Hubble & NASA Acknowledgement: N. Sulzenauer
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Commons is a freely licensed media file repository.
201:http://www.spacetelescope.org/images/potw1248a/
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894:Espace : découverte de sept galaxies naines
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306:
766:The following other wikis use this file:
396:Creative Commons Attribution 3.0 Unported
499:f515e006c1a48f6c88fc391e9946b2814883fd23
147:A Peculiar Compact Blue Dwarf Galaxy.jpg
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1136:A peculiar compact blue dwarf galaxy
819:Марфалагічная класіфікацыя галактык
731:User created page with UploadWizard
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237:This file is licensed under the
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1181:Karl-Schwarzschild-Strasse 2
322:Items portrayed in this file
1044:Danh sách thiên hà gần nhất
845:Usage on diq.wikipedia.org
795:Usage on ast.wikipedia.org
785:Usage on arz.wikipedia.org
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1060:Usage on zh.wikipedia.org
1050:Usage on www.wikidata.org
1035:Usage on vi.wikipedia.org
1025:Usage on tt.wikipedia.org
1015:Usage on tr.wikipedia.org
1005:Usage on ru.wikipedia.org
995:Usage on pl.wikipedia.org
985:Usage on my.wikipedia.org
970:Usage on mk.wikipedia.org
960:Usage on mg.wikipedia.org
950:Usage on lb.wikipedia.org
940:Usage on ja.wikipedia.org
934:Galassia nana compatta blu
920:Usage on it.wikipedia.org
910:Usage on he.wikipedia.org
900:Usage on gl.wikipedia.org
875:Usage on fr.wikipedia.org
865:Usage on fa.wikipedia.org
855:Usage on eu.wikipedia.org
835:Usage on de.wikipedia.org
825:Usage on ce.wikipedia.org
815:Usage on be.wikipedia.org
805:Usage on az.wikipedia.org
770:Usage on ar.wikipedia.org
191:26 November 2012, 10:00:00
929:Gruppo di Centaurus A/M83
890:Usage on fr.wikinews.org
884:Liste de galaxies proches
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1155:Copyright status not set
1019:Yakın galaksiler listesi
746:List of nearest galaxies
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242:Attribution 3.0 Unported
108:This is a file from the
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709:12:16, 26 November 2012
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112:. Information from its
176:its closer neighbour.
164:star-forming process.
115:description page there
46:Size of this preview:
1186:Garching bei München
511:determination method
74:5,377 × 2,737 pixels
70:2,560 × 1,303 pixels
1168:Contact information
679:06:03, 24 June 2024
261:– to adapt the work
52:Other resolutions:
979:Ѕвездено суперјато
756:Super star cluster
66:1,280 × 652 pixels
62:1,024 × 521 pixels
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762:Global file usage
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380:copyright license
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110:Wikimedia Commons
32:Global file usage
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789:NGC 5253 (مجره)
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123:You can help
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22:File history
1201:IIM version
1130:Short title
1115:Image title
1101:Usage terms
696:Fabian RRRR
360:copyrighted
270:attribution
145:Description
1088:ESA/Hubble
737:File usage
690:(11.96 MB)
664:Dimensions
554:9,415,001
465:image/jpeg
450:media type
282:CC BY 3.0
89:image/jpeg
27:File usage
726:Jmencisom
720:(8.98 MB)
661:Thumbnail
658:Date/Time
539:data size
416:inception
218:Licensing
154:English:
1163:NGC 5253
1160:Keywords
1072:Metadata
1064:NGC 5253
1039:NGC 5253
1029:NGC 5253
999:NGC 5253
989:NGC 5253
974:NGC 5253
964:NGC 5253
954:NGC 5253
944:NGC 5253
924:NGC 5253
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879:NGC 5253
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839:NGC 5253
829:NGC 5253
809:NGC 5253
799:NGC 5253
774:NGC 5253
751:NGC 5253
484:checksum
303:Captions
259:to remix
253:to share
244:license.
37:Metadata
1193:Germany
1190:D-85748
1054:Q618400
675:current
670:Comment
327:depicts
307:English
137:Summary
85:
1085:Source
628:4,000
591:2,036
576:height
207:Author
197:Source
630:pixel
613:width
593:pixel
518:SHA-1
1188:, ,
667:User
556:byte
291:true
288:true
187:Date
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