“MOA-2007-BLG-400L”的意思、由来-开放百科全书

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MOA-2007-BLG-400L

释义

Planetary system
See also
References
External links

{{Starbox begin
| name = MOA-2007-BLG-400L
}}{{Starbox observe
| epoch = J2000.0
| constell = Sagittarius
| ra = {{RA|18|09|42}}
| dec = {{DEC|–29|13|27}}
| appmag_v =
}}{{Starbox character
| class = M3V?
}}{{Starbox astrometry
| dist_ly = 20000
| dist_pc = 6000
}}{{Starbox detail
| mass = 0.35 ± 0.15
}}{{Starbox reference
|Simbad=MOA+2007-BLG-400
| EPE = MOA-2007-BLG-400-L
}}{{Starbox end}}

MOA-2007-BLG-400L is a star located approximately 20000 light-years away in the constellation of Sagittarius. This star is presumed to be a red dwarf with a spectral type of M3V, based on its mass of 0.35 M_S.

Planetary system

In September 2008, the discovery of an extrasolar planet was announced by the Microlensing Follow Up Network (μFUN) and the Microlensing Observations in Astrophysics (MOA) Collaboration. This planet was detected by the gravitational microlensing method based on [https://web.archive.org/web/20110721155651/https://it019909.massey.ac.nz/moa/alert2007/display.php?name=2007-BLG-400 an event] recorded in September 2007.

{{OrbitboxPlanet short
| exoplanet = b
| mass = 0.9 ± 0.4
| separation = 0.85 ± 0.25
}}

References

{{cite journal | title=Microlensing Event MOA-2007-BLG-400: Exhuming the Buried Signature of a Cool, Jovian-Mass Planet | journal=The Astrophysical Journal | format=abstract | date=2009 | volume=698 | issue=2 | pages=1826–1837 | doi=10.1088/0004-637X/698/2/1826 | url=http://www.iop.org/EJ/abstract/0004-637X/698/2/1826 | last1=Dong | first1=Subo | last2=Bond| first2=I. A. | last3=Gould | first3=A. | last4=Kozłowski | first4=Szymon | last5=Miyake | first5=N. | last6=Gaudi | first6=B. S. | last7=Bennett | first7=D. P. | last8=Abe | first8=F. | last9=Gilmore | first9=A. C. | display-authors=1 | bibcode=2009ApJ...698.1826D|arxiv = 0809.2997 }}[https://arxiv.org/abs/0809.2997 web preprint ]

External links

[https://web.archive.org/web/20110721155651/https://it019909.massey.ac.nz/moa/alert2007/display.php?name=2007-BLG-400 MOA-2007-BLG-400 Event]

4 : M-type main-sequence stars|Planetary systems|Sagittarius (constellation)|Gravitational lensing

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Planetary system

See also

References

External links