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Gaia Data Release 2: The astrometric solution
Context. Gaia Data Release 2 (Gaia DR2) contains results for 1693 million sources in the magnitude range 3 to 21 based on observations collected by the European Space Agency Gaia satellite during theExpand
Gaia Data Release 1 - Astrometry: one billion positions, two million proper motions and parallaxes
Gaia Data Release 1 (Gaia DR1) contains astrometric results for more than 1 billion stars brighter than magnitude 20.7 based on observations collected by the Gaia satellite during the first 14 monthsExpand
The Second-Generation Guide Star Catalog: Description and Properties
The Guide Star Catalog II (GSC-II) is an all-sky database of objects derived from the uncompressed Digitized Sky Surveys that the Space Telescope Science Institute has created from the Palomar and UKExpand
Mid-infrared photometry of cold brown dwarfs : diversity in age, mass and metallicity
Original article can be found at: http://www.iop.org/EJ/journal/apj [Full text of this article is not available in the UHRA]
RX J0806.3+1527: A double degenerate binary with the shortest known orbital period (321s)
We carried out optical observations of the field of the X–ray pulsator RX J0806.3+1527. A blue $V =$ 21.1 star was found to be the only object consistent with the X–ray position. VLT FORS spectraExpand
A very cool brown dwarf in UKIDSS DR1
We report the discovery of a very cool brown dwarf, ULAS J003402.77−005206.7 (ULAS J0034−00), identified in the UKIRT Infrared Deep Sky Survey First Data Release. We provide optical, near-infrared,Expand
The discovery of a very cool binary system
The definitive version can be found at: http://www3.interscience.wiley.com/ Copyright Royal Astronomical Society
The discovery of a very cool, very nearby brown dwarf in the Galactic plane
We report the discovery of a very cool, isolated brown dwarf, UGPS 0722-05, with the United Kingdom Infrared Telescope Deep Sky Survey (UKIDSS) Galactic Plane Survey. The near-infrared spectrumExpand
The extremely red L dwarf ULAS J222711 004547 - dominated by dust.
We report the discovery of a peculiar L dwarf from the United Kingdom Infrared Deep Sky Survey Large Area Survey, ULAS J222711−004547. The very red infrared photometry (MKO J − K = 2.79 ± 0.06, WISEExpand
Optical photometric monitoring of γ-ray loud blazars. - I. Observations from November 1994 to November 1995
The results of the optical monitoring between November 1994 and November 1995 of twenty γ -ray loud blazars included in the Torino blazar monitoring program are presented. All data were taken withExpand