| 词条 | DENIS-P J020529.0-115925 |
| 释义 |
| name=DENIS-P J020529.0-115925A}}{{Starbox observe | epoch=J2000 | ra={{RA|02|05|29.401}}[1] | dec={{DEC|-11|59|29.67}}[1] | constell=Cetus }}{{Starbox character | class=L5.5 + L8 + T0[2] | appmag_1_passband=J | appmag_1=14.587[1] }}{{Starbox astrometry | prop_mo_ra=427[3] | prop_mo_dec=52[3] | parallax=50.60 | p_error=1.50 | parallax_footnote=[4] }}{{Starbox catalog | names={{odlist|2MASS=J02052940-1159296|WDS=J02055-1159AB}} }}{{Starbox reference | Simbad=DENIS-P+J020529.0-115925 }}{{Starbox end}}DENIS-P J020529.0-115925 is a star system in the constellation of Cetus. It is located 64 light-years (19.8 parsecs) away, based on the system's parallax.[4] It was first found in the Deep Near Infrared Survey of the Southern Sky. This is a triple star system containing three brown dwarfs: objects that do not have enough mass to fuse hydrogen like stars. The two brightest components, designated A and B respectively, are both L-type objects. As of 2003, the two were separated 0.287° along a position angle of 246°.[2] Component B was observed to elongated, suggesting a third component. This third component, named C, is a T-type object.[2] It is separated about 1.9 astronomical units (au) from B, and based on a total mass of {{solar mass|0.1|link=yes}}, the two may orbit each other every 8 years.[2] See also
References1. ^1 2 {{cite journal|title=2MASS All-Sky Catalog of Point Sources|date=2003|journal=VizieR On-line Data Catalog|volume=2246|author1=Cutri, R. M.|bibcode=2003yCat.2246....0C}} {{Stars of Cetus}}{{multi-star-stub}}{{Brown-dwarf-stub}}2. ^1 2 3 {{cite journal|bibcode=2005AJ....129..511B|doi=10.1086/426559|arxiv=astro-ph/0410226|title=A Possible Third Component in the L Dwarf Binary System DENIS-P J020529.0-115925 Discovered with the Hubble Space Telescope|journal=The Astronomical Journal|volume=129|pages=511|year=2005|last1=Bouy|first1=H.|last2=Martín|first2=E. L.|last3=Brandner|first3=W.|last4=Bouvier|first4=J.}} 3. ^1 {{cite journal|bibcode=2007AJ....133.2258S|doi=10.1086/512158|arxiv=astro-ph/0701055|title=Activity and Kinematics of Ultracool Dwarfs, Including an Amazing Flare Observation|journal=The Astronomical Journal|volume=133|issue=5|pages=2258|year=2007|last1=Schmidt|first1=Sarah J.|last2=Cruz|first2=Kelle L.|last3=Bongiorno|first3=Bethany J.|last4=Liebert|first4=James|last5=Reid|first5=I. Neill}} 4. ^1 {{cite journal|author=Dahn, C. C.|author2=Harris, Hugh C.|author3=Vrba, Frederick J.|author4=Guetter, Harry H.|author5=Canzian, Blaise|author6=Henden, Arne A.|author7=Levine, Stephen E.|author8=Luginbuhl, Christian B.|author9=Monet, Alice K. B.|author10=Monet, David G.|author11=Pier, Jeffrey R.|author12=Stone, Ronald C.|author13=Walker, Richard L.|author14=Burgasser, Adam J.|author15=Gizis, John E.|author16=Kirkpatrick, J. Davy|author17=Liebert, James|author18=Reid, I. Neill|title=Astrometry and Photometry for Cool Dwarfs and Brown Dwarfs|year=2002|journal=The Astronomical Journal|volume=124|issue=2|pages=1170–1189|arxiv=astro-ph/0205050|doi=10.1086/341646|bibcode=2002AJ....124.1170D}} 9 : Triple star systems|Brown dwarfs|L-type stars|T-type stars|Cetus (constellation)|DENIS objects|2MASS objects|WISE objects|Astronomical objects discovered in 1997 |
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