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PHL 5038
PHL 5038AB (or just PHL 5038) is a binary system consisting out of a white dwarf and a brown dwarf on a wide orbit. The system is 240 light years (74 parsec) distant from earth. The white dwarf PHL 5038A was discovered in 2006 in data from the Sloan Digital Sky Survey and the brown dwarf companion was discovered in 2009 from UKIDSS infrared excess and confirmed with Gemini North to be a spacially resolved binary. It was only the fourth known brown dwarf to orbit a white dwarf at the time. The others were GD 165B, WD 0137-349B and GD 1400B. Physical parameters The white dwarf was first classified as a DA white dwarf, which indicates a hydrogen-dominated atmosphere without any metal pollution. A later work found weak pollution due to calcium in the atmosphere of the white dwarf thanks to XSHOOTER spectra from the Very Large Telescope. The calcium is detected as the K-line in two spectra. No infrared excess due to a disk was detected. PHL 5038A has either accreted a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PHL 5038AB Gemini
PHL may stand for: Places * The Philippines (ISO 3166-1 alpha-3 country code PHL) * Philadelphia International Airport (IATA airport code PHL) * 30th Street Station (Amtrak station code PHL), a railroad station in Philadelphia * Pacific Harbor Line (reporting mark PHL), a short line railroad serving the ports of Long Beach and Los Angeles Groups, organizations, companies * Planet Half-Life, a videogaming website *The Planetary Habitability Laboratory, a remote laboratory for the habitability of exoplanets Hockey leagues *Pro Hokei Ligasy *Polska Hokej Liga * Pacific Hockey League, a defunct ice hockey league in the United States * Pakistan Hockey League, a field hockey league in Pakistan * Premier Hockey League, a defunct field hockey league in India * Professional Hockey League, a defunct ice hockey league in Ukraine Other uses * ''Philosophiae Licentiata'' (female) or ''Philosophiae Licentiatus'' (male), Licentiate (degree), Licentiate in Philosophy, abbreviated as "PhL" or " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
