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The Centers of Early‐ to Intermediate‐Type Spiral Galaxies: A Structural Analysis

C. Marcella Carollo
1999 Astrophysical Journal  
Under the likely assumption that the visual light from the faint nuclei embedded in the quiescent exponential bulges is of stellar origin and of a similar Gyr) age for the central star clusters and their  ...  , the old Milky Way globular clusters and the young star clusters, respectively, with typical of about a few up to B20 pc.  ...  A structural analysis of the exponential bulges and nuclei shows that (1) the nuclei bridge the parameter space k e -R e of young and old globular clusters, overlapping with these systems and Ðlling in  ... 
doi:10.1086/307753 fatcat:n52vs2betbddnn74naykystxna

Kinematic properties and stellar populations of faint early-type galaxies - I. Velocity dispersion measurements of central Coma galaxies

A. Matković, R. Guzmán
2005 Monthly notices of the Royal Astronomical Society  
We present velocity dispersion measurements for 69 faint early-type galaxies in the core of the Coma cluster, spanning -22.0<M_R<-17.5 mag.  ...  Assuming a strong coordination in the formation epoch of faint early-type systems in Coma, we find that most had to be formed at least 6 Gyrs ago and over a short 1 Gyr period.  ...  In case of Single Exponential Component, Bulge+Single Exponential Component and Bulge-dominated galaxies we only show the bisector value (Figure 4, right pannel) Figure 1 .  ... 
doi:10.1111/j.1365-2966.2005.09298.x fatcat:4tdlz7i7ijhrrh66alorymkxwe

Near-infrared bulge-disc correlations of lenticular galaxies

Sudhanshu Barway, Yogesh Wadadekar, Ajit K. Kembhavi, Y. D. Mayya
2009 Monthly notices of the Royal Astronomical Society  
On probing variations in lenticular properties as a function of environment, we find that faint cluster lenticulars show systematic differences with respect to faint field lenticulars.  ...  These differences support the idea that the bulge and disk components fade after the galaxy falls into a cluster, while simultaneously undergoing a transformation from spiral to lenticular morphologies  ...  This publication makes use of data products from the 2MASS, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology  ... 
doi:10.1111/j.1365-2966.2009.14440.x fatcat:ptmjsyfeeffhddph6qfoxhz7t4


E. Iodice, M. Capaccioli, A. Grado, L. Limatola, M. Spavone, N. R. Napolitano, M. Paolillo, R. F. Peletier, M. Cantiello, T. Lisker, C. Wittmann, A. Venhola (+4 others)
2016 Astrophysical Journal  
and the outer exponential stellar halo.  ...  The deep photometry allows us to detect a faint stellar bridge in the intracluster region between NGC1399 and NGC1387.  ...  This analysis allows us to conclude that such a faint and large exponential component cannot be a dynamically-supported disk.  ... 
doi:10.3847/0004-637x/820/1/42 fatcat:v62a42fdorcwpnc73kmbmcwtge

Page 73 of Astronomy and Astrophysics Vol. 171, Issue 1-2 [page]

1987 Astronomy and Astrophysics  
of other components in the same region.  ...  This means that the lens should have little effect in the decomposition of the galaxy’s light, and hence it is not considered in the subsequent analysis.  ... 

CCD and HI observations of LSB dwarf galaxies in the general field

V. E. Karachentseva, P. Prugniel, J. Vennik, G. M. Richter, T. X. Thuan, J. M. Martin
1996 Astronomy and Astrophysics Supplement Series  
Most of them show exponential light profiles with a central light depression. About half of them have bright generally blue knots or peculiar loops.  ...  CCD B and V observations of 16 low-surface-brightness galaxies and HI data for a subsample of 4 of them are presented.  ...  VEK is grateful to the ESO C&EE and the director of the OHP for financial support and hospitality.  ... 
doi:10.1051/aas:1996161 fatcat:c2dabdrqgffvdbbcqus46qxnnq

The morphology of H II galaxies

E. Telles, J. Melnick, R. Terlevich
1997 Monthly notices of the Royal Astronomical Society  
The relative position of HII galaxies and of a sample of dwarf elliptical galaxies in the [R -- sigma] diagram support the hypothesis of a possible evolutionary link between the two types of galaxy.  ...  The images are used to analyse the morphology of these emission line dwarfs, and the structural properties of the knots of star formation and of the underlying galaxy.  ...  We especially thank Richard Sword for his art work in this paper.  ... 
doi:10.1093/mnras/288.1.78 fatcat:34tekmcidnbaplzieajrw4vu7e

The Fornax Deep Survey with VST. II. Fornax A: A Two-phase Assembly Caught in the Act

E. Iodice, M. Spavone, M. Capaccioli, R. F. Peletier, T. Richtler, M. Hilker, S. Mieske, L. Limatola, A. Grado, N. R. Napolitano, M. Cantiello, R. D'Abrusco (+6 others)
2017 Astrophysical Journal  
Data analysis suggests that we are catching in act the second phase of the mass assembly in this galaxy, since the accretion of smaller satellites is going on in both components.  ...  As part of the Fornax Deep Survey with the ESO VLT Survey Telescope, we present new g and r bands mosaics of the SW group of the Fornax cluster.  ...  Puzia and V. Antonuccio-Delogu for the discussions and suggestions on the present work. T.R. acknowledges support from the BASAL Centro de Astrofísica y Tecnologias Afines  ... 
doi:10.3847/1538-4357/aa6846 fatcat:ca2hv6kr35gatiqpjkkz4yduuu

Spiral Galaxies with WFPC2. II. The Nuclear Properties of 40 Objects

C. M. Carollo, M. Stiavelli, J. Mack
1998 Astronomical Journal  
(R^1/4 or exponential) and a disk component.  ...  The analysis of the sample of 75 galaxies puts on a statistically more solid ground the main results presented in paper I. Furthermore, the analysis of the sample of 75 objects shows that: A.  ...  ESO 240-G12.ÈThe outer, faint and irregular component extends to about 6 exponential scales (i.e., B35A) of the Ðtted single exponential bulge.  ... 
doi:10.1086/300407 fatcat:ime7n227prhsfexho3aaknoori

Page 1 of Astronomy and Astrophysics Vol. 145, Issue 1 [page]

1985 Astronomy and Astrophysics  
of an exponential disk and an (oblate) spheroid halo.  ...  History and introduction Twenty years ago, Becker (1965) published his pioneering photo- metric study of faint stars and stellar populations in Kapteyn’s Selected Area No. 51, setting the stage for the  ... 


E. Giallongo, N. Menci, A. Grazian, S. Gallozzi, M. Castellano, F. Fiore, A. Fontana, L. Pentericci, K. Boutsia, D. Paris, R. Speziali, V. Testa
2014 Astrophysical Journal  
The galaxy counts in the CL0024+17 core appear flatter and the amount of bending respect to the average cluster galaxy counts imply a loss of total emissivity in broad agreement with the measured ICL fraction  ...  Adopting values very similar to those derived from the most recent lensing analysis in CL0024+17 we find a good agreement with the observed ICL fraction profile.  ...  For these galaxies a single component analysis gave index values up to n ∼ 6 and a significant ring appeared in the halo residuals together with a negative intensity hole in the center.  ... 
doi:10.1088/0004-637x/781/1/24 fatcat:qxkaexu35zbshitlwye5iszwde

Page 456 of Astronomy and Astrophysics Vol. 149, Issue 2 [page]

1985 Astronomy and Astrophysics  
This test would be important to corroborate the results of our analysis which have revealed the existence of faint disks in galaxies clas- sified earlier as ellipticals.  ...  the cor- responding bulges and disks, without any significant change in the magnitude of these components.  ... 

Searching for Bulges at the End of the Hubble Sequence

Torsten Böker, Rebecca Stanek, Roeland P. van der Marel
2003 Astronomical Journal  
Most of these galaxies contain a nuclear star cluster, as discussed in a separate paper.  ...  Indeed, the surface brightness profiles of these galaxies are generally well fit by adding a second (exponential) bulge component.  ...  The paper is organized as follows: in x 2, we describe the data and the analysis methods that form the basis of our work. The results of our analysis are summarized in x 3.  ... 
doi:10.1086/367788 fatcat:i4mvp2viunfj3e5ienaxmvf2l4

The early-type dwarf galaxy population of the Centaurus cluster

I. Misgeld, M. Hilker, S. Mieske
2009 Astronomy and Astrophysics  
Photometric and structural parameters of the candidates are derived from analysis of their surface brightness profiles.  ...  On deep VLT/FORS1 V- and I-band images of the central part of the cluster, we identify cluster dwarf-galaxy candidates using both morphological and surface brightness selection criteria.  ...  Introduction Probing the faint end of the luminosity function (LF) in galaxy clusters and groups has in many cases exposed a discrepancy between the number of observed dwarf galaxies and the number of  ... 
doi:10.1051/0004-6361/200811451 fatcat:x4drwhigxbasjnaovggkkm4ndu

A population of gamma-ray emitting globular clusters seen with theFermiLarge Area Telescope

A. A. Abdo, M. Ackermann, M. Ajello, L. Baldini, J. Ballet, G. Barbiellini, D. Bastieri, R. Bellazzini, R. D. Blandford, E. D. Bloom, E. Bonamente, A. W. Borgland (+131 others)
2010 Astronomy and Astrophysics  
Our goal is to constrain the millisecond pulsar populations in globular clusters from analysis of gamma-ray observations.  ...  Five of them (47 Tucanae, Omega Cen, NGC 6388, Terzan 5, and M 28) show hard spectral power indices (0.7 < Γ <1.4) and clear evidence for an exponential cut-off in the range 1.0-2.6 GeV, which is the characteristic  ...  analysis.  ... 
doi:10.1051/0004-6361/201014458 fatcat:tzlrd2a675fk3j2moxsj7oa6gq
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