scholarly journals A Herschel and CARMA view of CO and [C ii] in Hickson Compact groups

2014 ◽  
Vol 10 (S309) ◽  
pp. 178-181
Author(s):  
Katherine Alatalo ◽  
Philip N. Appleton ◽  
Ute Lisenfeld
Keyword(s):  
Star Formation ◽  
Interstellar Medium ◽  
Compact Groups ◽  
Large Set ◽  
Space Observatory ◽  
Groups Of Galaxies ◽  
Preliminary Results ◽  
Evolution Of Galaxies ◽  
Hickson Compact Groups ◽  
Cold Dust

AbstractUnderstanding the evolution of galaxies from the starforming blue cloud to the quiescent red sequence has been revolutionized by observations taken with Herschel Space Observatory, and the onset of the era of sensitive millimeter interferometers, allowing astronomers to probe both cold dust as well as the cool interstellar medium in a large set of galaxies with unprecedented sensitivity. Recent Herschel observations of of H2-bright Hickson Compact Groups of galaxies (HCGs) has shown that [C ii] may be boosted in diffuse shocked gas. CARMA CO(1–0) observations of these [C ii]-bright HCGs has shown that these turbulent systems also can show suppression of SF. Here we present preliminary results from observations of HCGs with Herschel and CARMA, and their [C ii] and CO(1–0) properties to discuss how shocks influence galaxy transitions and star formation.

scholarly journals Herschelobservations of Hickson compact groups of galaxies: Unveiling the properties of cold dust

2014 ◽  
Vol 565 ◽  
pp. A25 ◽  
Author(s):  
T. Bitsakis ◽  
V. Charmandaris ◽  
P. N. Appleton ◽  
T. Díaz-Santos ◽  
E. Le Floc’h ◽  
...  
Keyword(s):  
Compact Groups ◽  
Groups Of Galaxies ◽  
Hickson Compact Groups ◽  
Cold Dust

scholarly journals Far-infrared and sub-millimeter properties of SDSS galaxies in the Herschel ATLAS SDP Field

2011 ◽  
Vol 7 (S284) ◽  
pp. 286-288
Author(s):  
Man I. Lam ◽  
Hong Wu ◽  
Yi-Nan Zhu
Keyword(s):  
Star Formation ◽  
Interstellar Medium ◽  
Stellar Population ◽  
Far Infrared ◽  
Morphological Type ◽  
Dust Grains ◽  
Space Observatory ◽  
Star Forming ◽  
Using Data ◽  
Cold Dust

AbstractUsing data from the new infrared facility the Herschel Space Observatory, we have analyzed correlations between morphological type, far-infrared (FIR) luminosity, and Hα luminosity for star-forming galaxies, composite galaxies, and AGNs. We found a trend in scatter from 100μm to 500μm, which indicates that the submillimeter bands are not a good star formation tracer in these galaxies, being contaminated either by the old stellar population or by the interstellar medium (ISM). AGNs have no significant effect on our fitting results since the far-infrared to submillimeter emission is from cold dust/large dust grains.

scholarly journals A Reference Sample: ISM of the Most Isolated Galaxies

2004 ◽  
Vol 217 ◽  
pp. 220-221
Author(s):  
L. Verdes-Montenegro ◽  
J. Sulentic ◽  
D. Espada ◽  
S. Leon ◽  
U. Lisenfeld ◽  
...  
Keyword(s):  
Star Formation ◽  
Interstellar Medium ◽  
Galaxy Evolution ◽  
Reference Sample ◽  
Control Sample ◽  
Evolution Of Galaxies ◽  
Isolated Galaxies ◽  
Internal Evolution

We are constructing the first complete unbiased control sample of the most isolated galaxies of the northern sky to serve as a template in the study of star formation and galaxy evolution in denser environments. Our goal is to compare and quantify the properties of different phases of the interstellar medium in this sample, as well as the level of star formation, both relevant parameters in the internal evolution of galaxies and strongly conditioned by the environment. To achieve this goal we are building a multiwavelength database for this sample to compare and quantify the properties of different phases of the ISM.

scholarly journals Environmental Effects in Galaxy Clusters: Infalling Groups in Abell 85 and 1367

2010 ◽  
Vol 6 (S277) ◽  
pp. 296-299
Author(s):  
H. Bravo-Alfaro ◽  
T. C. Scott ◽  
E. Brinks ◽  
L. Cortese ◽  
P. Granados ◽  
...  
Keyword(s):  
Galaxy Clusters ◽  
Environmental Effects ◽  
Compact Groups ◽  
Late Type ◽  
Gravitational Effects ◽  
Groups Of Galaxies ◽  
Preliminary Results ◽  
Nir Imaging ◽  
Gaseous Component ◽  
Global Cluster

AbstractWe are carrying out a multifrequency survey of late type galaxies in nearby clusters with the aim to investigate the effects exerted by both the very local and the global cluster environments. We report new VLA-HI images of galaxies in Abell 1367 and study the evolution of their gaseous component. In Abell 85 we perform a deep NIR imaging survey of the brightest spirals projected up to 1.0 Abell radius with the aim of unveiling possible gravitational effects on their stellar disks. Here we show preliminary results of these projects, mainly focused on infalling compact groups of galaxies moving towards their respective cluster centers.

Nuclear Activity in the Hickson Compact Groups of Galaxies

1999 ◽  
pp. 418-418
Author(s):  
M. Shimada ◽  
S. Nishiura ◽  
Y. Ohyama ◽  
T. Murayama ◽  
Y. Taniguchi
Keyword(s):  
Compact Groups ◽  
Nuclear Activity ◽  
Groups Of Galaxies ◽  
Hickson Compact Groups

A K-Band Luminosity Function of Hickson Compact Groups of Galaxies

1999 ◽  
pp. 415-415
Author(s):  
S. Nishiura ◽  
T. Murayama ◽  
Y. Taniguchi ◽  
Y. Sato ◽  
D. B. Sanders
Keyword(s):  
Luminosity Function ◽  
Compact Groups ◽  
Groups Of Galaxies ◽  
Hickson Compact Groups ◽  
K Band

scholarly journals MASS DISTRIBUTION IN HICKSON COMPACT GROUPS OF GALAXIES

2009 ◽  
Vol 139 (1) ◽  
pp. 1-16 ◽  
Author(s):  
H. Plana ◽  
P. Amram ◽  
C. Mendes de Oliveira ◽  
C. Balkowski
Keyword(s):  
Mass Distribution ◽  
Compact Groups ◽  
Groups Of Galaxies ◽  
Hickson Compact Groups

scholarly journals Star-forming regions in the intragroup medium of compact groups of galaxies

2009 ◽  
Vol 5 (S262) ◽  
pp. 440-441
Author(s):  
S. Torres-Flores ◽  
C. Mendes de Oliveira ◽  
D. F. de Mello ◽  
P. Amram ◽  
H. Plana ◽  
...  
Keyword(s):  
Star Formation ◽  
Dwarf Galaxy ◽  
Early Stage ◽  
Velocity Fields ◽  
Compact Groups ◽  
Advanced Stage ◽  
Groups Of Galaxies ◽  
Star Forming ◽  
Star Forming Regions ◽  
Fabry Perot

AbstractWe present the results of a multiwavelength campaign searching for young objects in the intragroup medium of seven compact groups of galaxies: HCG 2, 7, 22, 23, 92, 100 and NGC 92. We used Fabry-Perot velocity fields and rotation curves together with GALEX NUV and FUV images, optical R-band and HI maps to evaluate the stage of interaction of each group. We conclude that groups (i) HCG 7 and HCG 23 are in an early stage of interaction, (ii) HCG 2 and HCG 22 are mildly interacting, and (iii) HCG 92, HCG 100 and NGC 92 are in a late stage of evolution. Evolved groups have a population of young objects in their intragroup medium while no such population is found within the less evolved groups. We also report the discovery of a tidal dwarf galaxy candidate in the tail of NGC 92. These three groups, besides containing galaxies which have peculiar velocity fields, also show extended HI tails. Our results indicate that the advanced stage of evolution of a group together with the presence of intragroup HI clouds may lead to star formation in the intragroup medium.

scholarly journals Truncated Star Formation in Compact Groups of Galaxies: A Stellar Population Study

2006 ◽  
Vol 133 (1) ◽  
pp. 330-346 ◽  
Author(s):  
Ignacio G. de la Rosa ◽  
Reinaldo R. de Carvalho ◽  
Alexandre Vazdekis ◽  
Beatriz Barbuy
Keyword(s):  
Star Formation ◽  
Population Study ◽  
Stellar Population ◽  
Compact Groups ◽  
Groups Of Galaxies

scholarly journals The Surface Density Profiles and Lensing Characteristics of Hickson Compact Groups of Galaxies

1996 ◽  
Vol 473 (2) ◽  
pp. L83-L86 ◽  
Author(s):  
M. L. Montoya ◽  
R. Domínguez-Tenreiro ◽  
G. González-Casado ◽  
G. A. Mamon ◽  
E. Salvador-Solé
Keyword(s):  
Surface Density ◽  
Compact Groups ◽  
Density Profiles ◽  
Groups Of Galaxies ◽  
Hickson Compact Groups
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