The Two Micron Galactic Survey (TMGS) is the most sensitive near-infrared large scale survey of the Galactic plane yet attempted. The TMGS has so far covered...
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PublicationThe Two Micron Galactic Survey.
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PublicationThe two Titan stellar occultations of 14 November 2003
We report the observation of two stellar occultations by Titan on 14 November 2003, using stations in the Indian Ocean, southern Africa, Spain, and northern and...
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PublicationThe Type-II Plateau Supernova 1988A in M58 - what Mechanism Powers its Late-Time Luminosity
The detection of high late-time luminosity in the type-II plateau supernova 1988A about 500 days after maximum indicates that some mechanism is still providing...
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PublicationThe Uaratio and Its Possible Use in Roman Urban Planning to Obtain Astronomical Orientations
Several works have tried either to demonstrate or reject the notion that the orientation of the main axis of a Roman city was deliberate since its choice might...
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PublicationThe UCM-CIDA-YALE Survey: Looking for the current star-forming galaxies
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PublicationThe Ultra Luminous X-ray Sources in the High Velocity System of NGC 1275
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PublicationThe Ultra-Diffuse Dwarf Galaxy Crater II
Crater II is the fourth largest galaxy among the satellites of the Milky Way, only surpassed by the Magellanic Clouds, Sagittarius and the recently discovered...
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PublicationThe Ultraluminous X-ray Source IC 342 X-1 and its Environment
We present optical observations of a ULX in the nearby spiral galaxy IC 342. This variable source has an average X-ray luminosity of some 10^{40} erg/s. At the...
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PublicationThe Ultraluminous X-ray Source in Holmberg IX and its Environment
We present optical observations of an ultraluminous X-ray source (ULX) in Holmberg IX, a dwarf galaxy near M81. The ULX has an average X-ray luminosity of some...