Results 81 to 90 of about 6,612 (195)

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

open access: yes, 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   +5 more
core   +2 more sources

The SLUGGS survey: chromodynamical modelling of the lenticular galaxy NGC 1023 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
Globular clusters (GCs) can be considered discrete, long-lived, dynamical tracers that retain crucial information about the assembly history of their parent galaxy. In this paper, we present a new catalogue of GC velocities and colours for the lenticular galaxy NGC 1023, we study their kinematics and spatial distribution, in comparison with the ...
Aaron J. Romanowsky   +16 more
openaire   +6 more sources

Star Formation in the Lopsided Galaxy Arp 291

open access: yesThe 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

Effect of bars on the galaxy properties

open access: yes, 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   +2 more
core   +1 more source

Forming Lenticular Galaxies via Violent Disk Instability [PDF]

open access: yesThe Astrophysical Journal Letters, 2018
Abstract Lenticular galaxies are generally thought to have descended from spirals via morphological transformation, although recent numerical simulations have shown that minor or even major mergers can also lead to an S0-like remnant. These mechanisms, however, are active in a dense environment such as a group or a cluster of galaxies ...
Kanak Saha, Arianna Cortesi
openaire   +4 more sources

Morphology and kinematics of the ionised gas in early-type galaxies

open access: yes, 2005
We present results of our ongoing study of the morphology and kinematics of the ionised gas in 48 representative nearby elliptical and lenticular galaxies using the SAURON integral-field spectrograph on the 4.2m William Herschel Telescope.
Bacon   +37 more
core   +1 more source

Mid- to Far-IR Emission and Star Formation in Early-Type Galaxies [PDF]

open access: yes, 2008
Many early-type galaxies have been detected at wavelengths of 24 to 160 micron, but the emission is usually dominated by heating from an AGN or from the evolved stellar population.
Bendo, G J, Lucero, Danielle, Young, L M
core   +1 more source

What Are S0 Galaxies?

open access: yes, 2009
The data collected in the Shapley-Ames catalog of bright galaxies show that lenticular (S0) galaxies are typically about a magnitude fainter than both elliptical (E) and early spiral (Sa) galaxies.
Hubble   +5 more
core   +1 more source

Evidence for Mass-dependent Evolution of Transitional Dwarf Galaxies in the Virgo Cluster

open access: yesThe Astrophysical Journal
The presence of transitional dwarf galaxies in cluster environments supports the hypothesis that infalling star-forming galaxies are transformed into quiescent early-type dwarf galaxies (ETdGs) through environmental effects.
Suk Kim, Soo-Chang Rey, Youngdae Lee
doaj   +1 more source

The colour-magnitude relation of Elliptical and Lenticular galaxies in the ESO Distant Cluster Survey [PDF]

open access: yes, 2010
We study the colour-magnitude relation (CMR) for a sample of 172 morphologically-classified E/S0 cluster galaxies from the ESO Distant Cluster Survey (EDisCS) at 0 ...
Alfonso Aragón-Salamanca   +90 more
core   +4 more sources

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