Results 41 to 50 of about 314,301 (152)

Predictions and Outcomes for the Dynamics of Rotating Galaxies

Galaxies, 2020
A review is given of a priori predictions made for the dynamics of rotating galaxies. One theory—MOND—has had many predictions corroborated by subsequent observations.
Stacy McGaugh
doaj   +1 more source

What Are S0 Galaxies?

, 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, Komatsu ., Sandage, Sandage, Sandage, Sidney van den Bergh   +5 more
core   +1 more source

Surface Brightness Plateau in S4G Galaxies

Galaxies, 2020
Using 3.6-μm data from 2112 galaxies, we show that, contrary to widely held expectations of a continuous steep decline, radial surface brightness profiles of galaxies tend to flatten and form extended plateaus beyond 27–28 magAB/arcsec2.
Alan Sipols, Alex Pavlovich
doaj   +1 more source

Equipartition Jet Model for the Seyfert 1 Galaxy 3C120 [PDF]

Journal of Astronomy and Space Sciences, 2003
The motion of 3C120 Jet relative to the core is reasonably uniform and the VLBI scale jet connects outwards to a VLA ˜ 100 kpc scale. We measured the jet width variation from the center and found some indication of a power law which indicates the jet ...
Siek Hyung
doaj   +1 more source

Cosmological Model Tests with JWST

Galaxies, 2022
The James Webb Space Telescope (JWST), which has recently become operational, is capable of detecting objects at record-breaking redshifts, z≳15. This is a crucial advance for observational cosmology, as at these redshifts the differences between ...
Nikita Lovyagin, Alexander Raikov, Vladimir Yershov, Yuri Lovyagin   +3 more
doaj   +1 more source

Bar fraction in lenticular galaxies: dependence on luminosity and environment

, 2010
We present a study of bars in lenticular galaxies based on a sample of 371 galaxies from the SDSS-DR 7 and 2MASS in optical and near-infrared bands, respectively.
Abadi, Abazajian, Aguerri, Aguerri, Aguerri, Aguerri, Aguerri, Ajit K. Kembhavi, Andersen, Athanassoula, Athanassoula, Barazza, Barazza, Barr, Barway, Barway, Bekki, Boselli, Bournaud, Bureau, Combes, De Vaucouleurs, Debattista, Debattista, Elmegreen, Erwin, Eskridge, Fukugita, Gadotti, Gadotti, Ho, Hubble, Hunt, Jogee, Knapen, Kniazev, Kormendy, Laurikainen, Lisker, Marinova, Marinova, McIntosh, Mendez-Abreu, Menendez-Delmestre, Nair, Nilson, Pfenniger, Prieto, Regan, Sakamoto, Sellwood, Sheth, Sheth, Sudhanshu Barway, Tago, Thompson, Van Den Bergh, Weinzirl, Whyte, Yogesh Wadadekar   +59 more
core   +1 more source

THE CANADA-FRANCE REDSHIFT SURVEY IX: HST Imaging of High-Redshift Field Galaxies

, 1995
HST B and I images are presented of 32 CFRS galaxies with secure redshifts in the range 0.5 < z < 1.2. These galaxies exhibit the same range of morphological types as seen locally, i.e., ellipticals, spirals and irregulars.
Crampton, David, Fevre, O. Le, Hammer, F., Lilly, S. J., Schade, D. J., Tresse, L.   +5 more
core   +2 more sources

HST Photometry and Keck Spectroscopy of the Rich Cluster MS1054-03: Morphologies, Butcher-Oemler Effect and the Color-Magnitude Relation at z=0.83 [PDF]

, 2000
We present a study of 81 I selected, spectroscopically-confirmed members of the X-ray cluster MS1054-03 at z=0.83. Redshifts and spectral types were determined from Keck spectroscopy.
Andreon S., Aragon-Salamanca A., Barbaro G., Bower R. G., Couch W. J., Daniel D. Kelson, Daniel Fabricant, de Theije P. A. M., Fried J. W., Garth D. Illingworth, Hogbom J. A., Kodama T., Marijn Franx, Pieter G. van Dokkum, Tytler D., van Dokkum P. G.   +15 more
core   +2 more sources

Some Properties of Galaxy Structures

Open Astronomy, 2011
We analysed some properties of galaxies structures based on the PF catalog of galaxy structures (Panko & Flin 2006) and the Tully NBG catalog (Tully 1988).
Flin Piotr, Biernacka Monika, Godłowski Włodzimierz, Panko Elena, Piwowarska Paulina   +4 more
doaj   +1 more source

The Host Galaxies of Short GRBs as Probes of Their Progenitor Properties

Galaxies, 2019
We present and discuss the properties of host galaxies of short Gamma-ray Burst (SGRBs). In particular, we examine those observations that contribute to the understanding of the progenitor systems of these explosions. Most SGRB hosts are found to be star
Massimiliano De Pasquale
doaj   +1 more source