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Spitzer IRAC infrared colours of submillimetre-bright galaxies
active galaxies
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2014/12/23
High-redshift submillimetre-bright galaxies identified by blank field surveys at millimetre and submillimetre wavelengths appear in the region of the Infra Red Array Camera (IRAC) colour–colour diagra...
The colours of BL Lac objects: a new approach to their classification
galaxies:active:BL Lac objects
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2012/2/23
We selected a sample of 437 BL Lac objects, taken from the RomaBZCat catalogue, for which spectroscopic information and SDSS photometry is available. We propose a new classification of BL Lacs in whic...
Galaxy Pairs in the Sloan Digital Sky Survey - III: Evidence of Induced Star Formation from Optical Colours
Galaxy Pairs the Sloan Digital Sky Survey - III
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2011/1/11
We have assembled a large, high quality catalogue of galaxy colours from the Sloan Digital Sky Survey Data Release 7, and have identified 21,347 galaxies in pairs spanning a range of projected separat...
Dwarf galaxies in the nearby Lynx-Cancer void: photometry, colours and ages
Dwarf galaxies photometry colours ages
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2010/11/16
The nearby Lynx-Cancer void is a good laboratory to study the effect of very rarefied environment on the evolution of the least massive dwarf galaxies. A recently compiled sample of this void’s galaxi...