Results 11 to 20 of about 646 (166)
Molecular gas in normal late-type galaxies [PDF]
Astronomy & Astrophysics, 2002 We present $^{12}$CO(J=1--0) line observations of 22 low-luminosity spiral galaxies in the Virgo cluster. These data, together with 244 others available in the literature, allow us to build a large sample that we use to study the molecular gas properties of galaxies spanning a large range of morphological types and luminosities and belonging to ...
Boselli, A +2 more
openaire +4 more sources
The radial extinction profiles of late-type galaxies [PDF]
Astronomy & Astrophysics, 2004 17 pages, 13 figures (higher resolution images available on request). Accepted in A&A (in press)
Boissier, Samuel +4 more
openaire +5 more sources
The Origin of Star Formation in Early-type Galaxies Inferred from Spatially Resolved Spectroscopy
The Astrophysical Journal, 2023 We investigate the origin of star formation activity in early-type galaxies with current star formation using spatially resolved spectroscopic data from the Mapping Nearby Galaxies at Apache Point Observatory in the Sloan Digital Sky Survey (SDSS).
Yun Hee Lee +4 more
doaj +1 more source
The Astronomical Journal, 2023 We assemble a catalog of 15424 nearby galaxies within 50 Mpc with consistent and homogenized mass, distance, and morphological type measurements. Our catalog combines galaxies from HyperLeda, the NASA-Sloan Atlas, and the Catalog of Local Volume Galaxies.
David Ohlson +4 more
doaj +1 more source
Clustercentric Distance or Local Density? It Depends on Galaxy Morphology
The Astrophysical Journal, 2023 Determining which between projected local density and distance from the cluster center plays a major role in regulating morphological fractions in clusters is a longstanding debate.
Benedetta Vulcani +8 more
doaj +1 more source
Quantitative Morphology of High-Redshift Galaxies Using GALEX Ultraviolet Images of Nearby Galaxies [PDF]
Journal of Astronomy and Space Sciences, 2017 We present simulations of the optical-band images of high-redshift galaxies utilizing 845 near-ultraviolet (NUV) images of nearby galaxies obtained through the Galaxy Evolution Explorer (GALEX). We compute the concentration (C), asymmetry (A), Gini (G),
Bum-Suk Yeom +6 more
doaj +1 more source
On the Decline of Star Formation during the Evolution of Galaxies
The Astrophysical Journal, 2023 Cosmological simulations predict that during the evolution of galaxies, the specific star formation rate continuously decreases. In a previous study we showed that generally this is not caused by the galaxies running out of cold gas but rather a decrease
Adelheid Teklu +4 more
doaj +1 more source
Continuous Filament Network of the Local Universe
The Astrophysical Journal, 2023 Simulated galaxy distributions are suitable for developing filament detection algorithms. However, samples of observed galaxies, being of limited size, cause difficulties that lead to a discontinuous distribution of filaments.
Anatoliy Tugay, Mariusz Tarnopolski
doaj +1 more source
Morphological Distribution of Galaxies in Some Nearby Clusters
Open Astronomy, 2019 We study the morphological distribution of galaxies in some nearby clusters, using the Sloan Digital Sky Survey – Data Release 9 (SDSS-DR9). The segregation between early-type galaxies and late-type ones is investigated in g – r / u – g color space ...
Rasheed Mariwan A., Mohammad Khalid K.
doaj +1 more source
Age-density relation of Main galaxies at fixed parameters or for different galaxy families
Open Physics, 2015 Using two volume-limited Main galaxy samples of the Sloan Digital Sky Survey Data Release 10 (SDSS DR10), we examine the environmental dependence of galaxy age at fixed parameters or for different galaxy families.
Deng Xin-Fa +4 more
doaj +1 more source