Galaxy morphology and evolution from SWAN adaptive optics imaging
نویسندگان
چکیده
منابع مشابه
Galaxy morphology and evolution from SWAN Adaptive Optics imaging ⋆
We present the results from adaptive optics (AO) assisted imaging in the Ks band of an area of 15 arcmin 2 for SWAN (Survey of a Wide Area with NACO). We derive the high resolution near-IR morphology of ∼ 400 galaxies up to Ks ∼ 23.5 in the first 21 SWAN fields around bright guide stars, carefully taking into account the survey selection effects and using an accurate treatment of the anisoplana...
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We report here on a sample of resolved, infrared images of galaxies at z∼0.5 taken with the 10-m Keck Telescope’s Adaptive Optics (AO) system. We regularly achieve a spatial resolution of 0.05 and are thus able to resolve both the disk and bulge components. We have extracted morphological information for ten galaxies and compared their properties to those of a local sample. The selection effect...
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We present high spatial resolution, near-IR images in J ,H , and K of the nucleus of NGC 3227, obtained with the Adaptive Optics bonnette on CFHT. The∼ 0.15 (17pc) resolution allows structures to be probed in the core region. Dust obscuration becomes significantly less pronounced at longer wavelengths, revealing the true geometry of the core region. We are able to identify two main features in ...
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Aims. To investigate the star formation activity and the gas and stellar dynamics on scales of a few parsecs in the nucleus of the Circinus Galaxy. Methods. Using the adaptive optics near infrared integral field spectrometer SINFONI on the VLT, we have obtained observations of the Circinus galaxy on scales of a few parsecs and at a spectral resolution of 70 km s −1 FWHM. The physical properties...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2006
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20065504