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- Lyman-alpha_blob abstract "In astronomy, a Lyman-alpha blob (LAB) is a huge concentration of a gas emitting the Lyman-alpha emission line. LABs are some of the largest known individual objects in the Universe. Some of these gaseous structures are more than 400,000 light years across. So far they have only been found in the high-redshift universe because of the ultraviolet nature of the Lyman-alpha emission line. Since the Earth's atmosphere is very effective at filtering out UV photons, the Lyman-alpha photons must be redshifted in order to be transmitted through the atmosphere.The most famous Lyman-alpha blobs were discovered in 2000 by Steidel et al. Matsuda et al., using the Subaru Telescope of the National Astronomical Observatory of Japan extended the search for LABs and found over 30 new LABs in the original field of Steidel et al., although they were all smaller than the originals. These LABs form a structure which is more than 200 million light-years in extent. It is currently unknown whether LABs trace overdensities of galaxies in the high-redshift universe (as high redshift radio galaxies — which also have extended Lyman-alpha halos — do, for example), nor which mechanism produces the Lyman-alpha emission line, or how the LABs are connected to the surrounding galaxies. Lyman-alpha blobs may hold valuable clues to determine how galaxies are formed.The most massive Lyman-alpha blobs have been discovered by Steidel et al. (2000), Francis et al. (2001), Matsuda et al. (2004), Dey et al. (2005), Nilsson et al. (2006), and Smith & Jarvis et al. (2007).".
- Lyman-alpha_blob thumbnail Lyman_Alpha_Blob.jpg?width=300.
- Lyman-alpha_blob wikiPageID "6165182".
- Lyman-alpha_blob wikiPageLength "3857".
- Lyman-alpha_blob wikiPageOutDegree "28".
- Lyman-alpha_blob wikiPageRevisionID "677743242".
- Lyman-alpha_blob wikiPageWikiLink Astronomy.
- Lyman-alpha_blob wikiPageWikiLink Atmosphere_of_Earth.
- Lyman-alpha_blob wikiPageWikiLink Category:Articles_containing_video_clips.
- Lyman-alpha_blob wikiPageWikiLink Category:Astronomical_spectroscopy.
- Lyman-alpha_blob wikiPageWikiLink Category:Extragalactic_astronomy.
- Lyman-alpha_blob wikiPageWikiLink Category:Intergalactic_media.
- Lyman-alpha_blob wikiPageWikiLink Category:Large-scale_structure_of_the_cosmos.
- Lyman-alpha_blob wikiPageWikiLink Category:Lyman-alpha_blobs.
- Lyman-alpha_blob wikiPageWikiLink Category:Physical_cosmology.
- Lyman-alpha_blob wikiPageWikiLink Damped_Lyman-alpha_system.
- Lyman-alpha_blob wikiPageWikiLink Earths_atmosphere.
- Lyman-alpha_blob wikiPageWikiLink Galaxy_filament.
- Lyman-alpha_blob wikiPageWikiLink Himiko_(Lyman-alpha_blob).
- Lyman-alpha_blob wikiPageWikiLink Himiko_Lyman-alpha_blob.
- Lyman-alpha_blob wikiPageWikiLink Light-year.
- Lyman-alpha_blob wikiPageWikiLink Light_year.
- Lyman-alpha_blob wikiPageWikiLink Lyman-alpha_blob_1.
- Lyman-alpha_blob wikiPageWikiLink Lyman-alpha_emitter.
- Lyman-alpha_blob wikiPageWikiLink Lyman-alpha_forest.
- Lyman-alpha_blob wikiPageWikiLink Lyman-alpha_line.
- Lyman-alpha_blob wikiPageWikiLink Lyman-break_galaxy.
- Lyman-alpha_blob wikiPageWikiLink Lyman_break_galaxy.
- Lyman-alpha_blob wikiPageWikiLink National_Astronomical_Observatory_of_Japan.
- Lyman-alpha_blob wikiPageWikiLink Newfound_Blob.
- Lyman-alpha_blob wikiPageWikiLink Photon.
- Lyman-alpha_blob wikiPageWikiLink Redshift.
- Lyman-alpha_blob wikiPageWikiLink Subaru_Telescope.
- Lyman-alpha_blob wikiPageWikiLink Ultraviolet.
- Lyman-alpha_blob wikiPageWikiLink Universe.
- Lyman-alpha_blob wikiPageWikiLink File:Animation_of_a_Lyman-alpha_blob.OGG.
- Lyman-alpha_blob wikiPageWikiLink File:Lyman-alpha_blob_LAB-1.jpg.
- Lyman-alpha_blob wikiPageWikiLink File:Lyman_Alpha_Blob.jpg.
- Lyman-alpha_blob wikiPageWikiLinkText "LαB".
- Lyman-alpha_blob wikiPageWikiLinkText "Lyman-alpha blob".
- Lyman-alpha_blob wikiPageWikiLinkText "lyman-alpha blob".
- Lyman-alpha_blob hasPhotoCollection Lyman-alpha_blob.
- Lyman-alpha_blob wikiPageUsesTemplate Template:Citation_style.
- Lyman-alpha_blob wikiPageUsesTemplate Template:Disambiguation_needed.
- Lyman-alpha_blob wikiPageUsesTemplate Template:Reflist.
- Lyman-alpha_blob subject Category:Articles_containing_video_clips.
- Lyman-alpha_blob subject Category:Astronomical_spectroscopy.
- Lyman-alpha_blob subject Category:Extragalactic_astronomy.
- Lyman-alpha_blob subject Category:Intergalactic_media.
- Lyman-alpha_blob subject Category:Large-scale_structure_of_the_cosmos.
- Lyman-alpha_blob subject Category:Lyman-alpha_blobs.
- Lyman-alpha_blob subject Category:Physical_cosmology.
- Lyman-alpha_blob hypernym Concentration.
- Lyman-alpha_blob type Disease.
- Lyman-alpha_blob type Astrophysic.
- Lyman-alpha_blob type Physic.
- Lyman-alpha_blob type Plasma.
- Lyman-alpha_blob type Sub-discipline.
- Lyman-alpha_blob comment "In astronomy, a Lyman-alpha blob (LAB) is a huge concentration of a gas emitting the Lyman-alpha emission line. LABs are some of the largest known individual objects in the Universe. Some of these gaseous structures are more than 400,000 light years across. So far they have only been found in the high-redshift universe because of the ultraviolet nature of the Lyman-alpha emission line.".
- Lyman-alpha_blob label "Lyman-alpha blob".
- Lyman-alpha_blob sameAs Blob_Lyman-α.
- Lyman-alpha_blob sameAs Lyman_alpha_blob.
- Lyman-alpha_blob sameAs Bańka_Lyman-alfa.
- Lyman-alpha_blob sameAs m.0ftngg.
- Lyman-alpha_blob sameAs Q1552818.
- Lyman-alpha_blob sameAs Q1552818.
- Lyman-alpha_blob sameAs 萊曼α斑點.
- Lyman-alpha_blob wasDerivedFrom Lyman-alpha_blob?oldid=677743242.
- Lyman-alpha_blob depiction Lyman_Alpha_Blob.jpg.
- Lyman-alpha_blob isPrimaryTopicOf Lyman-alpha_blob.