Surprises of the Cosmos Exhibition: June 9- July 19, 2009 NatureRough Times in the Galactic Neighborhood by Curtis StruckVolume 477 Number 7364, pages 286- 287September 15, 2011 Patrick Moore's 2011 Yearbook of AstronomyEdited by Patrick Moore and John Mason© 2010 Macmillan, cover Populä...
Surprises of the Cosmos Exhibition: June 9- July 19, 2009 NatureRough Times in the Galactic Neighborhood by Curtis StruckVolume 477 Number 7364, pages 286- 287September 15, 2011 Patrick Moore's 2011 Yearbook of AstronomyEdited by Patrick Moore and John Mason© 2010 Macmillan, cover Populä...
Hosting thousands of galaxies enveloped in superheated gas, this galaxy cluster is thought to be one of the most massive structures in the universe. The large galactic members of this cluster can be spotted by their yellowish-white haloes, akin to street lamps in a foggy night. Thousands of ...
NGC 2438 is aplanetary nebula, formed after the death of a Sun-like star. The medium-sized star would have expelled its outer layers of gas into space as it died, leaving behind a white-dwarf core. A halo of glowing gas over 4.5 light-years across surrounds the nebula’s...
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In particular, the following models of the gravitational lens mass distribution are considered: a singular isothermal ellipsoid, an isothermal ellipsoid with a core, two- and three-component models with a galactic disk, halo, and bulge. The modeled images are compared both between themselves and ...
The axial ratio of the galactic stellar halo We report our results for the axial ratio of the stellar halo based on star counts from the APS catalog of the Palomar Observatory Sky Survey (POSS) I. We ... JA Larsen,RM Humphreys - 《Astrophysical Journal》 被引量: 85发表: 1994年 Bosonic...
The identity of the lens objects for most of the LMC microlensing events seen by the MACHO Project is unknown. The most popular explanations include a previously unknown population of old, cool white dwarfs in the Galactic halo or in a very thick disk, or a variation standard LMC models tha...
galactic bulgeWe present a new approach to address the anisoplanatism in very crowded regions. We studied photometric and astrometric measurements from adaptive optics (AO) observations of the Galactic Bulge, taken during ESO science verification runs in 2002. We compared H and K VLT/NACO ...