scholarly journals Cold Dust in Late‐Type Virgo Cluster Galaxies

2002 ◽  
Vol 567 (1) ◽  
pp. 221-236 ◽  
Author(s):  
Cristina C. Popescu ◽  
Richard J. Tuffs ◽  
Heinrich J. Volk ◽  
Daniele Pierini ◽  
Barry F. Madore
Keyword(s):  
Virgo Cluster ◽  
Late Type ◽  
Cluster Galaxies ◽  
Cold Dust

Near Infrared Imaging of Late Type Virgo Cluster Galaxies

1996 ◽  
pp. 210-213
Author(s):  
Alessandro Boselli ◽  
Giuseppe Gavazzi ◽  
Hans Hippelein ◽  
James Lequeux ◽  
Daniele Pierini ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Virgo Cluster ◽  
Late Type ◽  
Near Infrared Imaging ◽  
Cluster Galaxies

scholarly journals Far‐Infrared Photometry of a Statistical Sample of Late‐Type Virgo Cluster Galaxies

2002 ◽  
Vol 139 (1) ◽  
pp. 37-79 ◽  
Author(s):  
Richard J. Tuffs ◽  
Cristina C. Popescu ◽  
Daniele Pierini ◽  
Heinrich J. Volk ◽  
Hans Hippelein ◽  
...  
Keyword(s):  
Far Infrared ◽  
Virgo Cluster ◽  
Infrared Photometry ◽  
Late Type ◽  
Cluster Galaxies ◽  
Statistical Sample

scholarly journals Near infrared surface photometry of late-type Virgo cluster galaxies

1997 ◽  
Vol 121 (3) ◽  
pp. 507-551 ◽  
Author(s):  
A. Boselli ◽  
R. J. Tuffs ◽  
G. Gavazzi ◽  
H. Hippelein ◽  
D. Pierini
Keyword(s):  
Near Infrared ◽  
Virgo Cluster ◽  
Surface Photometry ◽  
Late Type ◽  
Cluster Galaxies

scholarly journals The Fornax Deep Survey with the VST

2018 ◽  
Vol 620 ◽  
pp. A165 ◽  
Author(s):  
Aku Venhola ◽  
Reynier Peletier ◽  
Eija Laurikainen ◽  
Heikki Salo ◽  
Enrichetta Iodice ◽  
...  
Keyword(s):  
Dwarf Galaxies ◽  
Dwarf Galaxy ◽  
Galaxy Cluster ◽  
Virgo Cluster ◽  
Late Type ◽  
Cluster Galaxies ◽  
First Order ◽  
Main Cluster ◽  
Deep Survey ◽  
Fornax Cluster

Context. The Fornax Deep Survey (FDS), an imaging survey in the u′, g′, r′, and i′-bands, has a supreme resolution and image depth compared to the previous spatially complete Fornax Cluster Catalog (FCC). Our new data allows us to study the galaxies down to r′-band magnitude mr′ ≈ 21 mag (Mr′ ≈ −10.5 mag), which opens a new parameter regime to investigate the evolution of dwarf galaxies in the cluster environment. After the Virgo cluster, Fornax is the second nearest galaxy cluster to us, and with its different mass and evolutionary state, it provides a valuable comparison that makes it possible to understand the various evolutionary effects on galaxies and galaxy clusters. These data provide an important legacy dataset to study the Fornax cluster. Aims. We aim to present the Fornax Deep Survey (FDS) dwarf galaxy catalog, focusing on explaining the data reduction and calibrations, assessing the quality of the data, and describing the methods used for defining the cluster memberships and first order morphological classifications for the catalog objects. We also describe the main scientific questions that will be addressed based on the catalog. This catalog will also be invaluable for future follow-up studies of the Fornax cluster dwarf galaxies. Methods. As a first step we used the SExtractor fine-tuned for dwarf galaxy detection, to find galaxies from the FDS data, covering a 26 deg2 area of the main cluster up to its virial radius, and the area around the Fornax A substructure. We made 2D-decompositions of the identified galaxies using GALFIT, measure the aperture colors, and the basic morphological parameters like concentration and residual flux fraction. We used color–magnitude, luminosity–radius and luminosity–concentration relations to separate the cluster galaxies from the background galaxies. We then divided the cluster galaxies into early- and late-type galaxies according to their morphology and gave first order morphological classifications using a combination of visual and parametric classifications. Results. Our final catalog includes 14 095 galaxies. We classify 590 galaxies as being likely Fornax cluster galaxies, of which 564 are dwarfs (Mr′ >  −18.5 mag) consisting our Fornax dwarf catalog. Of the cluster dwarfs we classify 470 as early-types, and 94 as late-type galaxies. Our final catalog reaches its 50% completeness limit at magnitude Mr′ = −10.5 mag and surface brightness μ¯e,r′ = 26 mag arcsec−2, which is approximately three magnitudes deeper than the FCC. Based on previous works and comparison with a spectroscopically confirmed subsample, we estimate that our final Fornax dwarf galaxy catalog has ≲10% contamination from the background objects.

Erratum: “Far‐Infrared Photometry of a Statistical Sample of Late‐Type Virgo Cluster Galaxies” (ApJS, 139, 37 [2002])

2002 ◽  
Vol 140 (2) ◽  
pp. 609-609 ◽  
Author(s):  
Richard J. Tuffs ◽  
Cristina C. Popescu ◽  
Daniele Pierini ◽  
Heinrich J. Volk ◽  
Hans Hippelein ◽  
...  
Keyword(s):  
Far Infrared ◽  
Virgo Cluster ◽  
Infrared Photometry ◽  
Late Type ◽  
Cluster Galaxies ◽  
Statistical Sample

scholarly journals The GALEX Ultraviolet Virgo Cluster Survey (GUViCS)

2018 ◽  
Vol 611 ◽  
pp. A42 ◽  
Author(s):  
S. Boissier ◽  
O. Cucciati ◽  
A. Boselli ◽  
S. Mei ◽  
L. Ferrarese
Keyword(s):  
Virgo Cluster ◽  
Small Error ◽  
Early Type ◽  
Redshift Range ◽  
Cluster Galaxies ◽  
The Past ◽  
Brightest Cluster Galaxies ◽  
Binary Channel ◽  
Using Data ◽  
Uv Upturn

Context. At low redshift, early-type galaxies often exhibit a rising flux with decreasing wavelength in the 1000–2500 Å range, called “UV upturn”. The origin of this phenomenon is debated, and its evolution with redshift is poorly constrained. The observed GALEX FUV-NUV color can be used to probe the UV upturn approximately to redshift 0.5.Aim. We provide constraints on the existence of the UV upturn up to redshift ~0.4 in the brightest cluster galaxies (BCG) located behind the Virgo cluster, using data from the GUViCS survey.Methods. We estimate the GALEX far-UV (FUV) and near-UV (NUV) observed magnitudes for BCGs from the maxBCG catalog in the GUViCS fields. We increase the number of nonlocal galaxies identified as BCGs with GALEX photometry from a few tens of galaxies to 166 (64 when restricting this sample to relatively small error bars). We also estimate a central color within a 20 arcsec aperture. By using the r-band luminosity from the maxBCG catalog, we can separate blue FUV-NUV due to recent star formation and candidate upturn cases. We use Lick indices to verify their similarity to redshift 0 upturn cases.Results. We clearly detect a population of blue FUV-NUV BCGs in the redshift range 0.10–0.35, vastly improving the existing constraints at these epochs by increasing the number of galaxies studied, and by exploring a redshift range with no previous data (beyond 0.2), spanning one more Gyr in the past. These galaxies bring new constraints that can help distinguish between assumptions concerning the stellar populations causing the UV upturn phenomenon. The existence of a large number of UV upturns around redshift 0.25 favors the existence of a binary channel among the sources proposed in the literature.

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