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Tag Archives: Sources
Resolved atomic lines reveal outflows in two ultraluminous X-ray sources
Ultraluminous X-ray sources are extragalactic, off-nucleus, point sources in galaxies, and have X-ray luminosities in excess of 3 × 1039 ergs per second. They are thought to be powered by accretion onto a compact object. Possible explanations include accretion onto neutron stars with strong magnetic fields, onto stellar-mass black holes (of up to 20 solar masses) at or in excess of the classical Eddington limit, or...
Resolved atomic lines reveal outflows in two ultraluminous X-ray sources
Ultraluminous X-ray sources are extragalactic, off-nucleus, point sources in galaxies, and have X-ray luminosities in excess of 3 × 1039 ergs per second. They are thought to be powered by accretion onto a compact object. Possible explanations include accretion onto neutron stars with strong magnetic fields, onto stellar-mass black holes (of up to 20 solar masses) at or in excess of the classical Eddington limit, or...
Sources: Snapchat to open new Seattle engineering office with room for 50 people
Snapchat will set up its new engineering office across from Seattle’s Pike Place Market, in the same building where Facebook got its start in the city more than five...
Archaeology: Sources of Chaco wood
Tree rings can pinpoint the source of wood as well as how old it is. This method has now been used to identify the sources of timber used by the Native Americans who constructed the pre-Columbian 'great houses' of Chaco Canyon.
Nature doi: 10.1038/nature16864
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