Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/2M1207> ?p ?o }
- 2M1207 abstract "2M1207, 2M1207A or 2MASS J12073346-3932539 is a brown dwarf located in the constellation Centaurus; a companion object, 2M1207b, may be the first extrasolar planetary-mass companion to be directly imaged, and is the first discovered orbiting a brown dwarf.2M1207 was discovered during the course of the 2MASS infrared sky survey: hence the "2M" in its name, followed by its celestial coordinates. With a fairly early (for a brown dwarf) spectral type of M8, it is very young, and probably a member of the TW Hydrae association. Its estimated mass is around 25 Jupiter masses. The companion, 2M1207b, is estimated to have a mass of 3–10 Jupiter masses. Still glowing red hot, it will shrink to a size slightly smaller than Jupiter as it cools over the next few billion years.An initial photometric estimate for the distance to 2M1207 was 70 parsecs. In December 2005, American astronomer Eric Mamajek reported a more accurate distance (53 ± 6 parsecs) to 2M1207 using the moving cluster method. The new distance gives a fainter luminosity for 2M1207. Recent trigonometric parallax results have confirmed this moving cluster distance, leading to a distance estimate of 53 ± 1 parsec or 172 ± 3 light years.Like classical T Tauri stars, many brown dwarfs are surrounded by disks of gas and dust which accrete onto the brown dwarf. 2M1207 was first suspected to have such a disk because of its broad Hα line. This was later confirmed by ultraviolet spectroscopy. The existence of a dust disk has also been confirmed by infrared observations. In general, accretion from disks is known to produce fast-moving jets, perpendicular to the disk, of ejected material. This has also been observed for 2M1207; an April 2007 paper in the Astrophysical Journal reports that this brown dwarf is spouting jets of material from its poles. The jets, which extend around 109 kilometers into space, were discovered using the Very Large Telescope (VLT) at the European Southern Observatory. Material in the jets streams into space at a few kilometers per second.".
- 2M1207 thumbnail 2M1207b_-_First_image_of_an_exoplanet.jpg?width=300.
- 2M1207 wikiPageExternalLink star.php?st=2M1207.
- 2M1207 wikiPageExternalLink 0507416.
- 2M1207 wikiPageExternalLink aas_exoplanet_050110.html.
- 2M1207 wikiPageExternalLink Gg222.pdf.
- 2M1207 wikiPageExternalLink planet_photo_040910.html.
- 2M1207 wikiPageID "1087648".
- 2M1207 wikiPageLength "8698".
- 2M1207 wikiPageOutDegree "45".
- 2M1207 wikiPageRevisionID "658864532".
- 2M1207 wikiPageWikiLink 2M1207b.
- 2M1207 wikiPageWikiLink 2MASS.
- 2M1207 wikiPageWikiLink Accretion_disc.
- 2M1207 wikiPageWikiLink Accretion_disk.
- 2M1207 wikiPageWikiLink Astrophysical_Journal.
- 2M1207 wikiPageWikiLink Astrophysical_jet.
- 2M1207 wikiPageWikiLink Brown_dwarf.
- 2M1207 wikiPageWikiLink Category:2M1207.
- 2M1207 wikiPageWikiLink Category:2MASS_objects.
- 2M1207 wikiPageWikiLink Category:Centaurus_(constellation).
- 2M1207 wikiPageWikiLink Category:Free-floating_substellar_objects.
- 2M1207 wikiPageWikiLink Category:M-type_brown_dwarfs.
- 2M1207 wikiPageWikiLink Category:Planetary_systems.
- 2M1207 wikiPageWikiLink Category:TW_Hydrae_association.
- 2M1207 wikiPageWikiLink Centaurus.
- 2M1207 wikiPageWikiLink Constellation.
- 2M1207 wikiPageWikiLink Epoch_(astronomy).
- 2M1207 wikiPageWikiLink Eric_Mamajek.
- 2M1207 wikiPageWikiLink European_Southern_Observatory.
- 2M1207 wikiPageWikiLink Exoplanet.
- 2M1207 wikiPageWikiLink Extrasolar_Planets_Encyclopaedia.
- 2M1207 wikiPageWikiLink Infrared.
- 2M1207 wikiPageWikiLink International_Celestial_Reference_System.
- 2M1207 wikiPageWikiLink J2000.0.
- 2M1207 wikiPageWikiLink Jet_(astronomy).
- 2M1207 wikiPageWikiLink Jupiter.
- 2M1207 wikiPageWikiLink Light-year.
- 2M1207 wikiPageWikiLink Light_years.
- 2M1207 wikiPageWikiLink List_of_extrasolar_planets.
- 2M1207 wikiPageWikiLink Lists_of_planets.
- 2M1207 wikiPageWikiLink Luminosity.
- 2M1207 wikiPageWikiLink Methods_of_detecting_exoplanets.
- 2M1207 wikiPageWikiLink Methods_of_detecting_extrasolar_planets.
- 2M1207 wikiPageWikiLink Moving_cluster_method.
- 2M1207 wikiPageWikiLink Parallax.
- 2M1207 wikiPageWikiLink Parsec.
- 2M1207 wikiPageWikiLink Planet.
- 2M1207 wikiPageWikiLink Planetary-mass_object.
- 2M1207 wikiPageWikiLink Protoplanetary_disk.
- 2M1207 wikiPageWikiLink Spectroscopy.
- 2M1207 wikiPageWikiLink Stellar_classification.
- 2M1207 wikiPageWikiLink TW_Hydrae.
- 2M1207 wikiPageWikiLink T_Tauri_star.
- 2M1207 wikiPageWikiLink T_Tauri_stars.
- 2M1207 wikiPageWikiLink The_Astrophysical_Journal.
- 2M1207 wikiPageWikiLink Ultraviolet.
- 2M1207 wikiPageWikiLink Very_Large_Telescope.
- 2M1207 wikiPageWikiLink File:2M1207b_-_First_image_of_an_exoplanet.jpg.
- 2M1207 wikiPageWikiLinkText "2M1207".
- 2M1207 wikiPageWikiLinkText "2MASSW J1207334-393254".
- 2M1207 wikiPageWikiLinkText "first image".
- 2M1207 age "5".
- 2M1207 appmagV "20.15".
- 2M1207 class "M8".
- 2M1207 constell Centaurus.
- 2M1207 distLy "172".
- 2M1207 distPc "52.75".
- 2M1207 epoch "J2000.0".
- 2M1207 exoplanet 2M1207b.
- 2M1207 hasPhotoCollection 2M1207.
- 2M1207 luminosity "~0.002".
- 2M1207 mass "3".
- 2M1207 mass "~0.025".
- 2M1207 pError "0.4".
- 2M1207 parallax "19.1".
- 2M1207 rI "2.1".
- 2M1207 radius "~0.25".
- 2M1207 separation "40.6".
- 2M1207 temperature "2550".
- 2M1207 vR "2.1".
- 2M1207 wikiPageUsesTemplate Template:Cite_web.
- 2M1207 wikiPageUsesTemplate Template:OrbitboxOnePlanet.
- 2M1207 wikiPageUsesTemplate Template:Reflist.
- 2M1207 wikiPageUsesTemplate Template:Sky.
- 2M1207 wikiPageUsesTemplate Template:Starbox_astrometry.
- 2M1207 wikiPageUsesTemplate Template:Starbox_begin.
- 2M1207 wikiPageUsesTemplate Template:Starbox_catalog.
- 2M1207 wikiPageUsesTemplate Template:Starbox_character.
- 2M1207 wikiPageUsesTemplate Template:Starbox_detail.
- 2M1207 wikiPageUsesTemplate Template:Starbox_end.
- 2M1207 wikiPageUsesTemplate Template:Starbox_image.
- 2M1207 wikiPageUsesTemplate Template:Starbox_observe.
- 2M1207 wikiPageUsesTemplate Template:Starbox_reference.
- 2M1207 wikiPageUsesTemplate Template:Stars_of_Centaurus.
- 2M1207 subject Category:2M1207.
- 2M1207 subject Category:2MASS_objects.
- 2M1207 subject Category:Centaurus_(constellation).
- 2M1207 subject Category:Free-floating_substellar_objects.
- 2M1207 subject Category:M-type_brown_dwarfs.