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Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Sagittarius_B2> ?p ?o }

• Sagittarius_B2 abstract "Sagittarius B2 (Sgr B2) is a giant molecular cloud of gas and dust that is located about 120 parsecs (390 ly) from the center of the Milky Way. This complex is the largest molecular cloud in the vicinity of the core and one of the largest in the galaxy, spanning a region about 45 parsecs (150 ly) across. The total mass of Sgr B2 is about 3 million times the mass of the Sun. The mean hydrogen density within the cloud is 3000 atoms per cm3, which is about 20–40 times denser than a typical molecular cloud.The internal structure of this cloud is complex, with varying densities and temperatures. The cloud is divided into three main cores, designated north (N), middle or main (M) and south (S) respectively. Thus Sgr B2(N) represents the north core. The sites Sgr B2(M) and Sgr B2(N) are sites of prolific star formation. The first 10 H II regions discovered were designated A through J. H II regions A-G, I and J lie within Sgr B2(M), while region K is in Sgr B2(N) and region H is in Sgr B2(S). The 5-parsec-wide core of the cloud is a star-forming region that is emitting about 10 million times the luminosity of the Sun.The cloud is composed of various kinds of complex molecules, of particular interest: alcohol. The cloud contains ethanol, vinyl alcohol, and methanol. This is due to the conglomeration of atoms resulting in new molecules. The composition was discovered via spectrograph in an attempt to discover amino acids. Ethyl formate was also discovered which is a major compound in amino acids.Temperatures in the cloud vary from 300 K (27 °C) in dense star-forming regions to 40 K (−233.2 °C) in the surrounding envelope. Because the average temperature and pressure in Sgr B2 are low, chemistry based on the direct interaction of atoms is exceedingly slow. However, the Sgr B2 complex contains cold dust grains consisting of a silicon core surrounded by a mantle of water ice and various carbon compounds. The surfaces of these grains allow chemical reactions to occur by accreting molecules that can then interact with neighboring compounds. The resulting compounds can thenevaporate from the surface and join the molecular cloud.The molecular components of this cloud can be readily observed in the 102–103 μm range of wavelengths. About half of all the known interstellar molecules were first found near Sgr B2, and nearly every other currently known molecule has since been detected in this feature.The European Space Agency's gamma-ray observatory INTEGRAL has observed gamma rays interacting with Sgr B2, causing x-ray emission from the molecular cloud. This energy was emitted about 350 years ago by the supermassive black hole (SMBH) at the galaxy's core, Sagittarius A*. The total luminosity from this outburst is an estimated million times stronger than the current output from Sagittarius A*. This conclusion has been supported in 2011 by Japanese astronomers who observed the galactic center with the Suzaku satellite.".
• Sagittarius_B2 wikiPageExternalLink level3.php?id=55.
• Sagittarius_B2 wikiPageID "13973166".
• Sagittarius_B2 wikiPageLength "8118".
• Sagittarius_B2 wikiPageOutDegree "26".
• Sagittarius_B2 wikiPageRevisionID "683134736".
• Sagittarius_B2 wikiPageWikiLink Alcohol.
• Sagittarius_B2 wikiPageWikiLink Amino_acid.
• Sagittarius_B2 wikiPageWikiLink Category:Milky_Way.
• Sagittarius_B2 wikiPageWikiLink Category:Molecular_clouds.
• Sagittarius_B2 wikiPageWikiLink Category:Sagittarius_(constellation).
• Sagittarius_B2 wikiPageWikiLink Epoch_(astronomy).
• Sagittarius_B2 wikiPageWikiLink Ethanol.
• Sagittarius_B2 wikiPageWikiLink Ethyl_formate.
• Sagittarius_B2 wikiPageWikiLink European_Space_Agency.
• Sagittarius_B2 wikiPageWikiLink Gamma-ray.
• Sagittarius_B2 wikiPageWikiLink Gamma_ray.
• Sagittarius_B2 wikiPageWikiLink H_II_region.
• Sagittarius_B2 wikiPageWikiLink INTEGRAL.
• Sagittarius_B2 wikiPageWikiLink J2000.0.
• Sagittarius_B2 wikiPageWikiLink Large_Molecule_Heimat.
• Sagittarius_B2 wikiPageWikiLink List_of_interstellar_and_circumstellar_molecules.
• Sagittarius_B2 wikiPageWikiLink List_of_molecules_in_interstellar_space.
• Sagittarius_B2 wikiPageWikiLink Methanol.
• Sagittarius_B2 wikiPageWikiLink Milky_Way.
• Sagittarius_B2 wikiPageWikiLink Molecular_cloud.
• Sagittarius_B2 wikiPageWikiLink Sagittarius_(constellation).
• Sagittarius_B2 wikiPageWikiLink Sagittarius_A*.
• Sagittarius_B2 wikiPageWikiLink Solar_luminosity.
• Sagittarius_B2 wikiPageWikiLink Solar_mass.
• Sagittarius_B2 wikiPageWikiLink Spectrograph.
• Sagittarius_B2 wikiPageWikiLink Supermassive_black_hole.
• Sagittarius_B2 wikiPageWikiLink Suzaku_(satellite).
• Sagittarius_B2 wikiPageWikiLink Vinyl_alcohol.
• Sagittarius_B2 wikiPageWikiLinkText "Sagittarius B2".
• Sagittarius_B2 wikiPageWikiLinkText "Sgr B2".
• Sagittarius_B2 constellation Sagittarius_(constellation).
• Sagittarius_B2 epoch Epoch_(astronomy).
• Sagittarius_B2 epoch J2000.0.
• Sagittarius_B2 hasPhotoCollection Sagittarius_B2.
• Sagittarius_B2 name "Sagittarius B2".
• Sagittarius_B2 names "Sagittarius B2, Sgr B2".
• Sagittarius_B2 radiusPc "23".
• Sagittarius_B2 type "giant molecular cloud".
• Sagittarius_B2 wikiPageUsesTemplate Template:Cite_web.
• Sagittarius_B2 wikiPageUsesTemplate Template:Convert.
• Sagittarius_B2 wikiPageUsesTemplate Template:Infobox_nebula.
• Sagittarius_B2 wikiPageUsesTemplate Template:Reflist.
• Sagittarius_B2 subject Category:Milky_Way.
• Sagittarius_B2 subject Category:Molecular_clouds.
• Sagittarius_B2 subject Category:Sagittarius_(constellation).
• Sagittarius_B2 hypernym Cloud.
• Sagittarius_B2 type Company.
• Sagittarius_B2 comment "Sagittarius B2 (Sgr B2) is a giant molecular cloud of gas and dust that is located about 120 parsecs (390 ly) from the center of the Milky Way. This complex is the largest molecular cloud in the vicinity of the core and one of the largest in the galaxy, spanning a region about 45 parsecs (150 ly) across. The total mass of Sgr B2 is about 3 million times the mass of the Sun.".
• Sagittarius_B2 label "Sagittarius B2".
• Sagittarius_B2 sameAs قوس_ب2.
• Sagittarius_B2 sameAs Sagittarius_B2.
• Sagittarius_B2 sameAs Sagittarius_B2.
• Sagittarius_B2 sameAs Sagittarius_B2.
• Sagittarius_B2 sameAs m.03cpvmj.
• Sagittarius_B2 sameAs Стрелец_B2.
• Sagittarius_B2 sameAs Стрілець_B2.
• Sagittarius_B2 sameAs Q2735049.
• Sagittarius_B2 sameAs Q2735049.
• Sagittarius_B2 sameAs 人馬座B2.
• Sagittarius_B2 wasDerivedFrom Sagittarius_B2?oldid=683134736.
• Sagittarius_B2 isPrimaryTopicOf Sagittarius_B2.