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The colours of BL Lac objects: a new approach to their classification
galaxies:active:BL Lac objects
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...
Classification of field dwarfs and giants in RAVE and its use in stellar stream detection
Galaxy Astrophysics (astro-ph.GA)
2011/1/7
An efficient separation between dwarfs and giants in surveys of bright stars is important, especially for studies in which distances are estimated through photometric parallax relations.
Revisiting the Hubble sequence in the SDSS DR7 spectroscopic sample: a publicly available bayesian automated classification
Cosmology and Extragalactic Astrophysics (astro-ph.CO) Instrumentation and Methods for Astrophysics (astro-ph.IM)
2011/1/5
We present an automated morphological classification in 4 types (E,S0,Sab,Scd) of ~700.000 galaxies from the SDSS DR7 spectroscopic sample based on support vector machines. The main new property of th...
Automated Morphological Classification of SDSS Red Sequence Galaxies
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/29
In the last decade, the advent of enormous galaxy surveys has motivated the development of automated morphological classification schemes to deal with large data volumes. Existing automated schemes ca...
Statistical Classification Techniques for Photometric Supernova Typing
Cosmology and Extragalactic Astrophysics (astro-ph.CO) Applications (stat.AP)
2010/12/24
Future photometric supernova surveys will produce vastly more candidates than can be followed up spectroscopically, highlighting the need for effective classification methods based on lightcurves alon...
Spectral Classification and Analysis of Nuclear Activity in the UZC-Compact Group Sample
Spectral Classification UZC-Compact Group Sample Nuclear Activity
2009/7/9
Spectral Classification and Analysis of Nuclear Activity in the UZC-Compact Group Sample。