Results 101 to 110 of about 367,794 (177)
The Ages and Metallicities of Early Type Galaxies in the Fornax Cluster [PDF]
, 1997 We have measured central line strengths for a complete sample of early type galaxies in the Fornax cluster, comprising 11 elliptical and 11 lenticular galaxies, more luminous than M_B=-17. In contrast to the elliptical galaxies in the sample studied by Gonzalez (and recently revisited by Trager) we find that the Fornax ellipticals follow the locus of ...
arxiv +1 more source
The Astronomical JournalA gaseous counterrotating galaxy is a galaxy containing a gas component with opposite angular momentum to the main stellar disk. The counterrotating gas provides direct evidence for the accretion of external material, a key aspect in hierarchical galaxy ...
Minje Beom +2 more
doaj +1 more source
Radio Jet Feedback on the Inner Disk of Virgo Spiral Galaxy Messier 58
The Astrophysical JournalSpitzer spectral maps reveal a disk of highly luminous, warm (>150 K) H _2 in the center of the massive spiral galaxy Messier 58, which hosts a radio-loud active galactic nucleus (AGN). The inner 2.6 kpc of the galaxy appears to be overrun by shocks from
Patrick M. Ogle +11 more
doaj +1 more source
Kinematics And Stellar Population In Isolated Lenticular Galaxies [PDF]
arXiv, 2015 By combining new long-slit spectral data obtained with the Southern African Large Telescope (SALT) for 9 galaxies with previously published our observations for additional 12 galaxies we study the stellar and gaseous kinematics as well as radially resolved stellar population properties and ionized gas metallicity and excitation for a sample of isolated
arxiv
Statistical study of warps in a sample of spiral and lenticular galaxies
NRIAG Journal of Astronomy and Geophysics, 2016 AbstractA sample of edge-on (or nearly edge-on) spiral and lenticular galaxies is selected to study the warp phenomenon in their disks. This sample contains 36 disk galaxies selected from Watanabe’s catalogue (Watanabe, 1983). We investigate the existence of physical relations between photometric and spectroscopic parameters and the warp degree of ...
Alhassan I. Ibrahim +3 more
openaire +2 more sources
Minor-merger-induced Star Formation Rejuvenation in an Elliptical Radio-loud Quasar Host, 3C 59
The Astrophysical JournalWe report a rare case where an elliptical radio-loud quasar host, 3C 59, rejuvenates star formation activity through minor mergers with its nearby satellite galaxies.
Yijun Wang +5 more
doaj +1 more source
The Astrophysical JournalCombining Chandra, Atacama Large Millimeter/submillimeter Array, EVLA, and Hubble Space Telescope archival data and newly acquired data from the Apache Point Observatory/Dual Imaging Spectrograph, we detect a double-lobed 17 kpc X-ray emission with ...
Alejandro S. Borlaff +13 more
doaj +1 more source
Star formation histories of dwarf lenticular galaxies
Monthly Notices of the Royal Astronomical SocietyABSTRACT Star formation histories (SFHs) are essential for understanding galaxy formation and evolution. We present the mean SFHs of 148 dwarf lenticular galaxies (dS0s) derived from the Sloan Digital Sky Survey spectra. These SFHs reveal two distinct periods of active star formation. The first period, concluding approximately 6 Gyr ago,
Hong Bae Ann, Mira Seo
openaire +2 more sources
The Invisibility of Scotomas I: The Carving Hypothesis. [PDF]
Optom Vis Sci, 2023 Peli E, Goldstein R, Jung JH.
europepmc +1 more source
The Astrophysical JournalAs one type of blue early-type galaxy, the evolutionary history and fate of star-forming lenticular galaxies (S0s) remain elusive. We selected 134 star-forming S0s from the Sloan Digital Sky Survey IV MaNGA survey and found that they have steep and ...
Pei-Bin Chen +4 more
doaj +1 more source