Results 21 to 30 of about 245,182 (218)

The low dark matter content of the lenticular galaxy NGC 3998 [PDF]

, 2016
We observed the lenticular galaxy NGC 3998 with the Mitchell Integral-Field Spectrograph and extracted line-of-sight velocity distributions out to 3 half-light radii.
Nicholas Fraser Boardman, Anne-Marie Weijmans, Remco C. E. van den Bosch, Ling Zhu, Akın Yıldırım, Glenn van de Ven, Michele Cappellari, P. T. de Zeeuw, Éric Emsellem, Davor Krajnović, Thorsten Naab   +10 more
openalex   +3 more sources

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

Proceedings of the International Astronomical Union, 2007
AbstractPanoramic spectroscopy of the sample of 80 nearby lenticular galaxies is presented. The SSP-equivalent ages, [Z/H], and [Mg/Fe] are determined through the Lick indices Hβ, Mgb, and 〈Fe〉 separately for the nuclei and for the bulges. About a half of the sample contain chemically distinct nuclei, more metal-rich and younger than the bulges.
О. К. Сильченко
openalex   +5 more sources

The lenticular galaxy NGC3607: stellar population, metallicity and ionised gas [PDF]

, 2009
In this work we derive clues to the formation scenario and ionisation source of the lenticular galaxy NGC 3607 by means of metallicity gradients, stellar population and emission lines properties.
Annibali, Arimoto, Bica, Bica, Bruzual, Buzzoni, C. Bonatto, Caon, Carollo, Carollo, Davies, Dottori, Faber, Ferguson, Ferrari, Fisher, Fisher, Ho, Idiart, M. G. Pastoriza, M. G. Rickes, Macchetto, Maia, Matsushita, Ogando, Phillips, Pipino, Poveda, Rickes, Rickes, Salpeter, Stasinska, Terashima, Thomas, van den Bergh, Worthey   +35 more
core   +4 more sources

Creating lenticular galaxies with mergers [PDF]

Proceedings of the International Astronomical Union, 2016
AbstractLenticular 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
openalex   +7 more sources

Spectroscopic bulge-disc decomposition: a new method to study the evolution of lenticular galaxies [PDF]

, 2012
A new method for spectroscopic bulge-disc decomposition is presented, in which the spatial light profile in a two-dimensional spectrum is decomposed wavelength-by-wavelength into bulge and disc components, allowing separate one-dimensional spectra for ...
A. Aragón-Salamanca, A. G. Bedregal, Barway, Barway, Beckman, Bedregal, Bedregal, Bedregal, Bekki, Bell, Bessell, Bothun, Bruzual, Byrd, Caon, Cappellari, de Jong, de Vaucouleurs, den Brok, Desai, Dressler, Dressler, E. J. Johnston, Fasano, Fisher, Freeman, Gunn, Hudson, Kormendy, Kuntschner, La, Larson, M. R. Merrifield, MacArthur, Madore, Merritt, Mihos, Miller, Moore, Moore, Moore, Möllenhoff, Peletier, Pompei, Prochaska, Roche, Suh, Sánchez-Blázquez, Terndrup, Thomas, Trager, Varela, Vazdekis, Whitmore, Worthey, Worthey   +55 more
core   +2 more sources

STELLAR NUCLEI AND INNER POLAR DISKS IN LENTICULAR GALAXIES [PDF]

The Astronomical Journal, 2016
ABSTRACT 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 the Isaac Newton Group.
О. К. Сильченко
openalex   +6 more sources

Distribution and Motions of Atomic Hydrogen in Lenticular Galaxies [PDF]

Symposium - International Astronomical Union, 1983
We report the results of HI observations of eleven gas-rich SO/SOa galaxies with the Westerbork Synthesis Telescope. The majority of these galaxies have most of their hydrogen outside the optical body, in annular configurations with diameters ~2 times the optical. These outer gas rings are often clumped, incomplete, and in approximately circular motion.
Hugo van Woerden, W. van Driel, U. J. Schwarz   +2 more
openalex   +3 more sources

Exploring Lenticular Galaxy Formation in Field Environments Using NewHorizon: Evidence for Counterrotating Gas Accretion as a Formation Channel

The Astrophysical Journal
The formation pathways of lenticular galaxies (S0s) in field environments remain a matter of debate. We utilize the cosmological hydrodynamic simulation, NewHorizon , to investigate the issue. We select two massive star formation quenched S0s as our main
Seongbong Han, J. K. Jang, Emanuele Contini, Yohan Dubois, Seyoung Jeon, Sugata Kaviraj, Taysun Kimm, Katarina Kraljic, Sree Oh, Sébastien Peirani, Christophe Pichon, Sukyoung K. Yi   +11 more
doaj   +2 more sources

The SLUGGS Survey: Understanding Lenticular Galaxy Formation via Extended Stellar Kinematics

Galaxies, 2017
We present the latest published and preliminary results from the SLUGGS Survey discussing the formation of lenticular galaxies through analysis of their kinematics.
Sabine Bellstedt
doaj   +2 more sources

A Complex Stellar Line-of-Sight Velocity Distribution in the Lenticular Galaxy NGC 524 [PDF]

Open Astronomy, 2011
We present a detailed study of the stellar and gaseous kinematics in the luminous early-type galaxy NGC 524, derived from the long-slit spectroscopic observations obtained with the Russian 6 m telescope and the IFU data from the SAURON survey.
Katkov I., Chilingarian I., Sil’chenko O., Zasov A., Afanasiev V.   +4 more
doaj   +2 more sources