Results 121 to 130 of about 476,460 (296)
Magnetic-Field Vector Maps of Nearby Spiral Galaxies
Galaxies, 2019 We present a method for determining the directions of magnetic-field vectors in a spiral galaxy using two synchrotron polarization maps, an optical image, and a velocity field.
Hiroyuki Nakanishi +2 more
doaj +1 more source
Photometry and kinematics of extragalactic star-forming complexes
Open Astronomy, 2022 We investigate spectral and photometric properties of extragalactic star-forming complexes (SFCs). The SFCs were selected in 17 nearby galaxies of a spiral or irregular type, having inclinations less than 45° and distances less than 15 Mpc.
Kuzin Aleksey, Lisitsin Danil
doaj +1 more source
The different star formation histories of blue and red spiral and elliptical galaxies [PDF]
, 2013 We study the spectral properties of intermediate mass galaxies (M* ∼ 1010.7 M⊙) as a function of colour and morphology. We use Galaxy Zoo to define three morphological classes of galaxies, namely early types (ellipticals), late-type (disc-dominated) face-
R. Tojeiro +8 more
semanticscholar +1 more source
Discrete Dynamics in Nature and Society, 1999 Three kinds of results have been described in this paper. Firstly, an experimental study of the Rossby vortex meridional drift on the rotating shallow water has been carried out.
M. V. Nezlin +4 more
doaj +1 more source
Atmospheric Pressure and Molecular Cloud Formation in Early-type Galaxies
The Astrophysical Journal, 2023 A strong correlation between atmospheric pressure and molecular gas mass is found in central cluster galaxies and early-type galaxies. This trend and a similar trend with atmospheric gas density would naturally arise if the molecular clouds condensed ...
Iu. V. Babyk +5 more
doaj +1 more source
The Universal Rotation Curve of Spiral Galaxies: I. the Dark Matter Connection [PDF]
, 1995 We use a homogeneous sample of about 1100 optical and radio rotation curves (RCs) and relative surface photometry to investigate the main mass structure properties of spirals, over a range of 6 magnitudes and out to 1.5 and 2 optical radii (for the ...
M. Persic, P. Salucci, F. Stel
semanticscholar +1 more source
Rotation Curves of Spiral Galaxies [PDF]
, 2000 ▪ Abstract Rotation curves of spiral galaxies are the major tool for determining the distribution of mass in spiral galaxies.
Y. Sofue, V. Rubin
semanticscholar +1 more source
The Star Formation Law in Nearby Galaxies on Sub-Kpc Scales
, 2008 (Abridged) We present a comprehensive analysis of the relationship between star formation rate surface density (SFR SD) and gas surface density (gas SD) at sub-kpc resolution in a sample of 18 nearby galaxies.
Bigiel, Frank +6 more
core +1 more source
A minor merger origin for stellar inner discs and rings in spiral galaxies [PDF]
, 2011 Context. Observations have shown that inner discs and rings (IDs and IRs) are not preferably found in barred galaxies, which indicates that their formation may differ from that described by the traditional bar-origin scenario in many cases.
M. C. Eliche-Moral +11 more
semanticscholar +1 more source
SECULAR EVOLUTION OF SPIRAL GALAXIES [PDF]
Journal of The Korean Astronomical Society, 2003 15 pages, 8 figures, Invited talk presented at the 2nd APCTP workshop on Astrophysics, Pohang, Korea (June 2002)
openaire +4 more sources