HE 0047-1756: A new gravitationally lensed double QSO
نویسندگان
چکیده
منابع مشابه
HE 0047 − 1756 : A new gravitationally lensed double QSO ⋆
The quasar HE 0047−1756, at z = 1.67, is found to be split into two images 1. ′′44 apart by an intervening galaxy acting as a gravitational lens. The flux ratio for the two components is roughly 3.5:1, depending slightly upon wavelength. The lensing galaxy is seen on images obtained at 800 nm and 2.1 μm; there is also a nearby faint object which may be responsible for some shear. The spectra of...
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Aims. We present V and R photometry of the gravitationally lensed quasars WFI 2033-4723 and HE 0047-1756. The data were taken by the MiNDSTEp collaboration with the 1.54 m Danish telescope at the ESO La Silla observatory from 2008 to 2012. Methods. Differential photometry has been carried out using the image subtraction method as implemented in the HOTPAnTS package, additionally using GALFIT fo...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2004
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20040131