منابع مشابه
A new quadruple gravitational lens system: CLASS B01281437
1 University of Manchester, Jodrell Bank Observatory, Macclesfield, Cheshire SK11 9DL 2 Kapteyn Astronomical Institute, Postbus 800, NL-9700 AV Groningen, the Netherlands California Institute of Technology, Pasadena, CA 91125, USA Netherlands Foundation for Research in Astronomy, Postbus 2, NL-7990 AA Dwingeloo, the Netherlands 5 National Radio Astronomy Observatory, PO Box 0, Socorro, NM 87801...
متن کاملA New Quadruple Gravitational Lens System: CLASS B0128+437
High resolution MERLIN observations of a newly-discovered four-image gravitational lens system, B0128+437, are presented. The system was found after a careful reanalysis of the entire CLASS dataset. The MERLIN observations resolve four components in a characteristic quadruple-image configuration; the maximum image separation is 542 mas and the total flux density is 48 mJy at 5 GHz. A best-fit l...
متن کاملAO Velorum: a young quadruple system with a ZAMS eclipsing
Using recent spectroscopic observations, we show that the triple system AOVel with an eclipsing BpSi primary is in fact a remarkable quadruple system formed by two double-lined spectroscopic binaries with components close to the ZAMS. All available data have been reanalyzed to derive proper orbital parameters for both binary systems and to calculate absolute parameters of the eclipsing system. ...
متن کاملA Quadruple Lens System Found in the CLASSGravitational Lens SurveyS
The rst phase of a large gravitational lens survey using the Very Large Array at a wavelength of 3.6 cm has been completed, yielding images for 3258 radio sources. The Cosmic Lens All-Sky Survey, or CLASS, is designed to locate gravitational lens systems consisting of multiply-imaged compact components with separations > 0: 00 2. We report here the rst discovery of a gravitational lens from the...
متن کاملA Single Circumbinary Disk in the HD 98800 Quadruple System.
We present subarcsecond thermal infrared imaging of HD 98800, a young quadruple system composed of a pair of low-mass spectroscopic binaries separated by 0&farcs;8 (38 AU), each with a K-dwarf primary. Images at wavelengths ranging from 5 to 24.5 µm show unequivocally that the optically fainter binary, HD 98800B, is the sole source of a comparatively large infrared excess on which a silicate em...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1897
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/57.6.456