Results 101 to 110 of about 245,182 (218)

Testing the nature of S0 galaxies using planetary nebula kinematics in NGC 1023 [PDF]

, 2007
We investigate the manner in which lenticular galaxies are formed by studying their stellar kinematics: an S0 formed from a fading spiral galaxy should display similar cold outer disc kinematics to its progenitor, while an S0 formed in a minor merger ...
Arnaboldi, M., Capaccioli, M., Coccato, L., De Lorenzi, F., Douglas, N. G., Freeman, K. C., Gerhard, O., Kuijken, K., Merrifield, M. R., Napolitano, N. R., Noordermeer, E., Romanowsky, A. J.   +11 more
core   +4 more sources

An extremely low gas-to-dust ratio in the dust-lane lenticular galaxy NGC 5485 [PDF]

, 2014
Evidence is mounting that a significant fraction of the early-type galaxy population contains substantial reservoirs of cold interstellar gas and dust.
M. Baes, F. Allaert, M. Sarzi, I. D. Looze, J. Fritz, G. Gentile, T. Hughes, I. Puerari, Matthew W. L. Smith, S. Viaene   +9 more
semanticscholar   +1 more source

Formation of the Dark Matter–Deficient S0 Galaxy NGC 4111 under the Tidal Interactions

The Astrophysical Journal Letters
We present high-sensitivity and large-scale atomic hydrogen (H i ) observations toward lenticular (S0) galaxy NGC 4111 using the Five-hundred-meter Aperture Spherical Radio Telescope.
Mei Ai, Ming Zhu, Nai-ping Yu, Jin-long Xu, Xiao-lan Liu, Yingjie Jing, Qian Jiao, Yao Liu, Chuan-peng Zhang, Jie Wang, Peng Jiang   +10 more
doaj   +1 more source

The Bulge-Halo Connection in Galaxies: A Physical Interpretation of the Vcirc-sigma_0 Relation

, 2006
We explore the dependence of the ratio of a galaxy's circular velocity, Vcirc, to its central velocity dispersion, sigma_0, on morphology, or equivalently total light concentration. Such a dependence is expected if light traces the mass.
Cappellari M., Jon Holtzman, Lawrence M. Widrow, Michael McDonald, Stéphane Courteau, Tully R. B.   +5 more
core   +1 more source

LENTICULAR GALAXY IC 719: CURRENT BUILDING OF THE COUNTERROTATING LARGE-SCALE STELLAR DISK [PDF]

, 2013
We have obtained and analyzed long-slit spectral data for the lenticular galaxy IC 719. In this gas-rich S0 galaxy, its large-scale gaseous disk counterrotates the global stellar disk.
I. Katkov, O. Sil’chenko, V. Afanasiev
semanticscholar   +1 more source

Exponential bulges and antitruncated disks in lenticular galaxies [PDF]

Proceedings of the International Astronomical Union, 2008
AbstractThe presence of exponential bulges and anti-truncated disks has been noticed in many lenticular galaxies. In fact, it could be expected because the very formation of S0 galaxies includes various processes of secular evolution. We discuss how to distinguish between a pseudobulge and an anti-truncated disk, and also what particular mechanisms may
openaire   +3 more sources

The Cool ISM in Elliptical Galaxies. II. Gas Content in the Volume - Limited Sample and Results from the Combined Elliptical and Lenticular Surveys

, 2010
We report new observations of atomic and molecular gas in a volume limited sample of elliptical galaxies. Combining the elliptical sample with an earlier and similar lenticular one, we show that cool gas detection rates are very similar among low ...
Barth, Brighenti, Crocker, D'Ercole, de Vaucouleurs, del Rio, Gary A. Welch, Goudfrooij, Huchtmeier, Huchtmeier, Isobe, Knapp, Knapp, Kormendy, Lauer, Leslie J. Sage, Lisa M. Young, Naab, Naab, Parriott, Prugniel, R Development Core Team., Sage, Sage, Sancisi, Sandage, Shostak, Springob, Taylor, Tully, van Driel, Welch, Wiklind, Young, Young, Young   +35 more
core   +1 more source

Effect of bars on the galaxy properties

, 2016
Aims: With the aim of assessing the effects of bars on disc galaxy properties, we present an analysis of different characteristics of spiral galaxies with strong, weak and without bars.
Alonso, Sol, Coldwell, Georgina, Vera, Matias   +2 more
core   +1 more source

Star Formation in the Lopsided Galaxy Arp 291

The Astrophysical Journal
We have investigated the star formation process taking place in the lopsided galaxy Arp 291, based on narrowband images in the H α , [N ii ] λ 6583, and [O iii ] λ 5007 emission lines, obtained using the modern tunable photometer MaNGaL at the Caucasus ...
Irina S. Proshina, Dmitriy V. Oparin
doaj   +1 more source

NGC 6340: an old S0 galaxy with a young polar disc. Clues from morphology, internal kinematics and stellar populations

, 2009
Lenticular galaxies are believed to form by a combination of environmental effects and secular evolution. We study the nearby disc-dominated S0 galaxy NGC 6340 photometrically and spectroscopically to understand the mechanisms of S0 formation and ...
Cayatte, Veronique, Chilingarian, Igor, Combes, Francoise, Di Matteo, Paola, Novikova, Alexandra, Zasov, Anatoly   +5 more
core   +2 more sources