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A Simultaneous Multi-Band Technique to Detect LSB Galaxies Appliedto Virgo Cluster NGVS Images

Published online by Cambridge University Press:  11 July 2011

M. Koleva ,
Ph. Prugniel ,
I. Vauglin ,
E. Ferriere ,
P-A. Duc ,
S. Mei ,
B. Vollmer ,
B. Perret ,
Ch. Collet  and
W. van Driel
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E. Ferriere
Affiliation:
AIM Paris-Saclay, CNRS/INSU, CEA/Irfu, Université Paris Diderot, France
P-A. Duc
Affiliation:
AIM Paris-Saclay, CNRS/INSU, CEA/Irfu, Université Paris Diderot, France
S. Mei
Affiliation:
Observatoire de Paris, Section de Meudon, GEPI, France
B. Vollmer
Affiliation:
CDS, France
B. Perret
Affiliation:
LSIIT, France
Ch. Collet
Affiliation:
LSIIT, France
W. van Driel
Affiliation:
Observatoire de Paris, Section de Meudon, GEPI, France
F. Bonnarel
Affiliation:
CDS, France
M. Louys
Affiliation:
LSIIT, France
S. Sabatini
Affiliation:
INAF/IASF-Roma, Italy
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Abstract

The NGVS is mapping the Virgo Cluster with a depth making possible to detect very low surface brightness (LSB) structures, such as faint dwarf galaxies. To extract these from just above the sky noise and make statistical studies of their properties, we use the software MARSIAA (MARkovian Software for Image Analysis in Astronomy). This segmentation software uses a Markovian approach to classify pixels and identify low-surface brightness structures.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 48: CRAL-2010 A Universe of Dwarf Galaxies , 2011 , pp. 359 - 360
Copyright
© EAS, EDP Sciences, 2011

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References

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Sabatini, S., Davies, J., Scaramella, R., et al., 2003, MNRAS, 341, 981CrossRef
Vollmer, B., et al., 2010, A&A, submitted