Results 71 to 80 of about 137,585 (152)

CDM, Feedback and the Hubble Sequence [PDF]

, 2002
We have performed TreeSPH simulations of galaxy formation in a standard LCDM cosmology, including effects of star formation, energetic stellar feedback processes and a meta-galactic UV field, and obtain a mix of disk, lenticular and elliptical galaxies ...
J Sommer-Larsen, J Sommer-Larsen, M Mori, M Roberts, P Colin, R Kennicutt, Y Byun   +6 more
core   +3 more sources

The influence of environment in the formation of lenticular galaxies

, 2021
Lenticular galaxies (S0s) are believed to form through 2 main pathways: mergers or fading of a spiral progenitor. It is not clear yet what is the dominant scenario, nor what are the parameters and physical conditions that favor one path instead of the other. In a pilot study with 21 galaxies (Coccato et al.
Coccato, Ludovico, Fraser-McKelvie, A., Johnston, E., Jaffé, Y., Cortesi, A.   +4 more
openaire   +1 more source

The Quasar / Galaxy Pair PKS 1327-206 / ESO 1327-2041: Absorption Associated with a Recent Galaxy Merger

, 2010
We present HST/WFPC2 broadband and ground-based Halpha images, H I 21-cm emission maps, and low-resolution optical spectra of the nearby galaxy ESO 1327-2041, which is located 38 arcsec (14 kpc in projection) west of the quasar PKS 1327-206.
Adelberger, Barnes, Barton, Bergeron, Bergeron, Borthakur, Bowen, Bowen, Bowen, Brian A. Keeney, Broeils, Brown, Charles W. Danforth, Chen, Chen, Chen, Christopher L. Carilli, Churchill, Comerford, Comerford, Faucher-Giguere, Ferguson, Giraud, Guyathakurta, Hansen, Heckman, Heitsch, Jenkins, Jenkins, John T. Stocke, Kacprzak, Kanekar, Keeney, Kennicutt, Kereš, Kobulnicky, Komossa, Komossa, Krumholz, Kunth, Lehner, Majewski, Martin, Morton, Nestor, Nestor, Newberg, Osterman, Penton, Prochaska, Prochaska, Péroux, Rao, Richter, Rocha-Pinto, Rosenberg, Steidel, Stocke, Tripp, Wolfe, Yanny, Zwaan   +61 more
core   +1 more source

Stellar Populations in Nearby Lenticular Galaxies

The Astrophysical Journal, 2006
We have obtained 2D spectral data for a sample of 58 nearby S0 galaxies with the Multi-Pupil Spectrograph of the 6m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences. The Lick indices H-beta, Mgb, and are calculated separately for the nuclei and for the bulges taken as the rings between R=4" and 7"; and the ...
openaire   +3 more sources

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

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   +1 more source

GALEX UV Color Relations for Nearby Early-Type Galaxies [PDF]

, 2006
We use GALEX/optical photometry to construct color-color relationships for early-type galaxies sorted by morphological type. We have matched objects in the GALEX GR1 public release and the first IR1.1 internal release, with the RC3 early-type galaxies ...
Alessandro Boselli, Alex S. Szalay, Armando Gil de Paz, Barry F. Madore, Barry Y. Welsh, Bressan A., Brown T. M., Bruno Milliard, D. Christopher Martin, David Schiminovich, Faber S. M., Gil de Paz A., Golev V., Jean‐Michel Deharveng, Jose Donas, Karl Forster, Kaviraj S., Luciana Bianchi, Mark Seibert, O'Connell R. W., Patrick Morrissey, Peter G. Friedman, R. Michael Rich, Rhee J., Samir Salim, Samuel Boissier, Schawinski K., Stephane Charlot, Sukyoung K. Yi, Susan G. Neff, Ted K. Wyder, Timothy M. Heckman, Todd Small, Tom A. Barlow, Young‐Wook Lee   +34 more
core   +5 more sources

Misaligned Gas Acquisition as a Formation Pathway of S0 Galaxies

The Astrophysical Journal
We analyze a sample of 753 S0 galaxies from the MPL-10 of Mapping Nearby Galaxies at Apache Point Observatory survey and investigate the gas–star kinematic misalignment and merger remnant fraction in galaxies with different morphological types.
Yuren Zhou, Yanmei Chen, Yong Shi, Qiusheng Gu, Junfeng Wang, Dmitry Bizyaev   +5 more
doaj   +1 more source

NGC 404, A Rejuvenated Lenticular Galaxy on a Merger-Induced, Blueward Excursion into the Green Valley [PDF]

, 2010
We have discovered recent star formation in the outermost portion (1-4x R_25) of the nearby lenticular (S0) galaxy NGC 404 using GALEX UV imaging.
Baldry, Bell, Boissier, Calzetti, Dalcanton, Dale, del Río, Donas, Donovan, Faber, Gil de Paz, Kannappan, Karachentsev, Kaviraj, Kennicutt, Krumholz, Lee, Leitherer, Maoz, Martin, Morganti, Morrissey, Ohl, Prescott, Rich, Sage, Salim, Schawinski, Schiminovich, Schlegel, Strateva, Thilker, Thilker, Tonry, Trager, van der Hulst, Wiklind, Wyder, Wyder, Yi   +39 more
core   +4 more sources

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 Globular Cluster Populations of Giant Galaxies: Mosaic Imaging of Five Moderate-Luminosity Early-Type Galaxies [PDF]

, 2012
This paper presents results from wide-field imaging of the globular cluster (GC) systems of five intermediate-luminosity (M_V ~-21 to -22) early-type galaxies.
Hargis, Jonathan R., Rhode, Katherine L.
core   +3 more sources