High-resolution panchromatic spectral models of galaxies including photoionization and dust

High-Resolution Panchromatic Spectral Models of Galaxies including Photoionisation and Dust

An updated version of the dust radiation transfer code sunrise, including models for star-forming regions and a self-consistent calculation of the spatially dependent dust and PAH emission, is presented. Given a hydrodynamic simulation of a galaxy, this model can calculate a realistic 2-dimensional ultraviolet– submillimeter spectral energy distribution of the galaxy, including emission lines f...

Panchromatic SED Models of Simulated Galaxies

The curvelet transform for fusion of very-high resolution multi- spectral and panchromatic images

This paper presents a novel image fusion method, suitable for pan-sharpening of multispectral (MS) bands, based on multi-resolution analysis (MRA). The low-resolution MS bands are sharpened by injecting high-pass directional details extracted from the high-resolution panchromatic (Pan) image by means of the curvelet transform, which is a non-separable MRA, whose basis function are directional e...

Isothermal dust models of Herschel-ATLAS galaxies

We use galaxies from the Herschel-ATLAS (H-ATLAS) survey, and a suite of ancillary simulations based on an isothermal dust model, to study our ability to determine the effective dust temperature, luminosity and emissivity index of 250 μm selected galaxies in the local Universe (z < 0.5). As well as simple far-infrared spectral energy distribution (SED) fitting of individual galaxies based on χ2...

Panchromatic Studies of Distant Clusters of Galaxies

High redshift (z >∼ 1) clusters are ideal probes to study the formation and evolution of large scale structures and galaxies in the universe. A 10-m class ground based telescope, X-ray observatories (Chandra, XMM-Newton) and HST/ACS are allowing us to perform an unprecedented study of distant massive clusters of galaxies in the redshift range 0.84 < z < 1.3, selected from X-rays surveys. In thi...