Results 1 to 10 of about 136,679 (180)

Bar fraction in lenticular galaxies: dependence on luminosity and environment [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2010
We present a study of bars in lenticular galaxies based on a sample of 371 galaxies from the SDSS-DR 7 and 2MASS in optical and near-infrared bands, respectively. We found a bar in 15% of the lenticular galaxies in our sample, which is consistent with recent studies.
Abadi, Abazajian, Aguerri, Aguerri, Aguerri, Aguerri, Aguerri, Ajit K. Kembhavi, Andersen, Athanassoula, Athanassoula, Barazza, Barazza, Barr, Barway, Barway, Bekki, Boselli, Bournaud, Bureau, Combes, De Vaucouleurs, Debattista, Debattista, Elmegreen, Erwin, Eskridge, Fukugita, Gadotti, Gadotti, Ho, Hubble, Hunt, Jogee, Knapen, Kniazev, Kormendy, Laurikainen, Lisker, Marinova, Marinova, McIntosh, Mendez-Abreu, Menendez-Delmestre, Nair, Nilson, Pfenniger, Prieto, Regan, Sakamoto, Sellwood, Sheth, Sheth, Sudhanshu Barway, Tago, Thompson, Van Den Bergh, Weinzirl, Whyte, Yogesh Wadadekar   +59 more
arxiv   +7 more sources

Lenticular Galaxies and Their Environments [PDF]

The Astrophysical Journal, 2009
It is widely believed that lenticular (S0) galaxies were initially spirals from which the gas has been removed by interactions with hot cluster gas, or by ram-pressure stripping of cool gas from spirals that are orbiting within rich clusters of galaxies.
Baade, Bekki, Burstein, de Vaucouleurs, Dressler, Fasano, Holden, Holden, Holmberg, Hubble, Hwang, Kormendy, Nair, Peacock, Poggianti, Puzia, Sandage, Sandage, Sidney van den Bergh, Silk, Toomre, van den Bergh, van den Bergh, van der Wel   +23 more
arxiv   +6 more sources

Properties of the Photometric Components of Lenticular Galaxies [PDF]

Advances in Astronomy, 2012
After almost one century since their definition, the origin of lenticular galaxies is still a matter of debate. Several formation processes have been proposed in order to explain the wide variety of their observational properties.
J. Alfonso L. Aguerri
doaj   +4 more sources

Properties of Stellar Populations in Isolated Lenticular Galaxies [PDF]

Astrophysical Bulletin, 2014
In this paper we present the results of long-slit spectral observations for a sample of isolated lenticular galaxies, made with the SCORPIO and SCORPIO-2 spectrographs of the 6-meter BTA telescope of the SAO RAS. By applying full spectral fitting technique using the stellar population evolutionary synthesis models, we have measured the radial profiles ...
Ivan Katkov, О. К. Сильченко, V. L. Afanasiev   +2 more
arxiv   +7 more sources

Creating lenticular galaxies with major mergers [PDF]

Proceedings of the International Astronomical Union, 2016
Lenticular galaxies (S0s) represent the majority of early-type galaxies in the local Universe, but their formation channels are still poorly understood. While galaxy mergers are obvious pathways to suppress star formation and increase bulge sizes, the marked parallelism between spiral and lenticular galaxies (e.g.
Miguel Querejeta, M. C. Eliche‐Moral, Trinidad Tapia, Alejandro Borlaff, Glenn van de Ven, M. Lyubenova, Marie Martig, J. Falcón‐Barroso, J. Méndez‐Abreu, J. Zamorano, J. Gallego   +10 more
arxiv   +9 more sources

Lenticular galaxies with UV-rings [PDF]

Astronomy Letters, 2011
By using the public UV imaging data obtained by the GALEX (Galaxy Ultraviolet Explorer) for nearby galaxies, we have compiled a list of lenticular galaxies possessing ultraviolet rings - starforming regions tightly confined to particular radial distances
A. Gil de Paz, A. Helmi, A. Marino, A. V. Moiseev, D. A. Thilker, D. A. Thilker, D. Bettoni, E. Athanassoula, G. Vaucouleurs de, I. Finkelman, I. P. Kostyuk, I. V. Chilingarian, J. Eder, J. L. Donovan, J. M. A. Few, K. N. Abazajian, K.-I. Wakamatsu, M. A. Ilyina, M. Mapelli, M. P. Schwarz, O. K. Sil’chenko, O. K. Sil’chenko, O. K. Sil’chenko, P. Serra, R. Buta, S. J. Maddox, V. V. Vlasyuk   +26 more
core   +6 more sources

Isolated lenticular galaxies: properties and evolution [PDF]

arXiv, 2014
This work is dedicated to investigation of galaxies that do not fit into a common scenario of galaxy formation - isolated lenticular galaxies. We have studied stellar populations and ionized gas content of a sample of 22 lenticular galaxies (among those 4 targets have appeared to be of erroneous morphological classification) by undertaking deep long ...
Ivan Katkov
arxiv   +5 more sources

Age and metallicity of the bulges in lenticular galaxies [PDF]

Proceedings of the International Astronomical Union, 2007
Panoramic spectroscopic data of the sample of 80 nearby lenticular galaxies obtained with the Multi-Pupil Fiber Spectrograph of the 6-m telescope are presented. The SSP-equivalent ages, [Z/H], and [Mg/Fe] are determined through the Lick indices H-beta, Mgb, and separately for the nuclei and for the bulges.
О. К. Сильченко
arxiv   +7 more sources

Stellar nuclei and inner polar disks in lenticular galaxies [PDF]

Astronomical Journal v. 152, no. 3, September 2016, Article Id. 73, 2016
I analyze statistics of the stellar population properties for stellar nuclei and bulges of nearby lenticular galaxies in different environments by using panoramic spectral data of the integral-field spectrograph SAURON retrieved from the open archive of Isaac Newton Group.
О. К. Сильченко
arxiv   +8 more sources

A catalog of warps in spiral and lenticular galaxies in the Southern hemisphere [PDF]

Astron.Astrophys.399:457-468,2003, 2002
A catalog of optical warps of galaxies is presented. This can be considered complementary to that reported by Sanchez-Saavedra et al., with 42 galaxies in the northern hemisphere, and to that by Reshetnikov & Combes, with 60 optical warps. The limits of the present catalog are: logr25 > 0.60, B_{t} < 14.5, delta(2000) < 0, -2.5 < t < 7.
M. L. Sánchez-Saavedra, E. Battaner, A. Guijarro, M. López‐Corredoira, N. Castro-Rodríguez   +4 more
arxiv   +6 more sources