Results 11 to 20 of about 2,779 (259)

The stellar content of the nuclear regions of SC galaxies [PDF]

The Astrophysical Journal, 1976
The stellar content of the nuclear regions of seven nearby Sc galaxies has been determined by means of population syntheses utilizing narrow-band spectrophotometric observations covering the wavelength range 3300A-10400A. A linear-programming fitting technique is used in conjunction with simple models of star formation to provide physically consistent ...
Turnrose, Barry Edmund
core   +5 more sources

Targeted decrease of portal hepatic pressure gradient improves ascites control after TIPS

Hepatology, EarlyView., 2022
The river diagram demonstrates that after transjugular intrahepatic portosystemic shunt insertion (TIPS) the majority of patients without ascites and 50% of the patients with ascites detectable at ultrasound, show the best response in the long term follow‐up.
Alexander Queck, Louise Schwierz, Wenyi Gu, Philip G. Ferstl, Christian Jansen, Frank E. Uschner, Michael Praktiknjo, Johannes Chang, Maximilian J. Brol, Filippo Schepis, Manuela Merli, Christian P. Strassburg, Jennifer Lehmann, Carsten Meyer, Jonel Trebicka   +14 more
wiley   +1 more source

The Stellar Content of the Nuclei of Spiral Galaxies [PDF]

Highlights of Astronomy, 1980
Widened, image-tube spectra at a dispersion of 120 Å mm-1 were obtained of the nuclei of 36 spiral (Shapley-Ames) galaxies. Spectral features in the region λλ 3800 - 4300 Å were used to assign a spectral index to each galaxy and to estimate the luminosity classes of the stars contributing the majority of the light at these wavelengths. Bulge magnitudes
openaire   +1 more source

Structure and stellar content of dwarf galaxies [PDF]

Astronomy & Astrophysics, 2001
CCD photometry in the Cousins B , V and R bands of 19 northern field dwarf galaxies is presented. For each galaxy, and for each colour, we determined total magnitude, effective radius and effective surface brightness, and, by fitting an exponential to the surface brightness profile, central surface brightness and exponential scale length.
F. D. Barazza, B. Binggeli, P. Prugniel
openaire   +1 more source

Ionized Gas and Stellar Content in a Sample of HII Galaxies [PDF]

International Astronomical Union Colloquium, 1989
AbstractWe present the first results of an extensive study of the stellar content and the ionized gas structure for a sample of BCGs. Deep broad (BVRI Johnson) and narrow (Hα) CCD images have been obtained for about 25 galaxies. For a subset of objects, selected on the basis of their apparent structure, long-slit spectroscopy has also been obtained in ...
J. M. Vilchez, J. Cepa, C. Esteban
openaire   +1 more source

The Stellar Content of the Local Group Dwarf Galaxy Phoenix

The Astronomical Journal, 1999
We present new deep $VI$ ground-based photometry of the Local Group dwarf galaxy Phoenix. Our results confirm that this galaxy is mainly dominated by red stars, with some blue plume stars indicating recent (100 Myr old) star formation in the central part of the galaxy.
Martinez-Delgado, D, Gallart, C, Aparicio, A   +2 more
openaire   +6 more sources

SDSS-IV MaNGA: Stellar Population Gradients Within Barred Galaxies [PDF]

, 2019
Bars in galaxies are thought to stimulate both inflow of material and radial mixing along them. Observational evidence for this mixing has been inconclusive so far however, limiting the evaluation of the impact of bars on galaxy evolution.
Knapen, Johan Hendrik, Knapen, Johan H, Brownstein, Joel, Fraser-McKelvie, Amelia, Andrews, Byron, Knapen, Johan H., Andrews, Brett H., Riffel, Rogério, Brownstein, Joel R., Schaefer, Adam, Kruk, Sandor J., Masters, K.L., Merrifield, Michael R., Drory, Niv, Peterken, Thomas, Peterken, Thomas G., Kruk, Sandor, Krawczyk, Coleman, Aragón-Salamanca, Alfonso, Smethurst, Rebecca, Schaefer, Adam L., Andrews, Brett, Merrifield, Michael, Smethurst, Rebecca J., Riffel, Rogerio A., Masters, Karen, Krawczyk, Coleman M.   +26 more
core   +2 more sources

SDSS-IV MaNGA: The link between bars and the early cessation of star formation in spiral galaxies [PDF]

, 2020
Bars are common in low-redshift disc galaxies, and hence quantifying their influence on their host is of importance to the field of galaxy evolution.
Boardman, N., Masters, K., Stark, D., Kraljic, K., Drory, Niv, Peterken, Thomas, Boardman, Nicholas Fraser, Kraljic, Katarina, Fraser-McKelvie, Amelia, Fragkoudi, Francesca, Merrifield, M., Arag´on-Salamanca, A., Drory, N., Lane, R., Arag�n-Salamanca, Alfonso, Smethurst, Rebecca, Peterken, T., Merrifield, Michael, Stark, David, Lane, Richard R., Fraser-McKelvie, A., Fragkoudi, F., Smethurst, R., Masters, Karen   +23 more
core   +2 more sources

Chemical and kinematical evolution in nearby dwarf spheroidal galaxies [PDF]

, 2006
Dwarf spheroidal (dSph) galaxies are the least massive and luminous objects known to exist. These galaxies are often considered as the fossil building blocks of massive systems predicted by some cosmological models.
Koch, Andreas
core   +1 more source

Fate of stellar bars in minor merger of galaxies [PDF]

, 2021
International audienceMinor merger of galaxies are common during the evolutionary phase of galaxies. Here, we investigate the dynamical impact of a minor merger (mass ratio 1:10) event on the final fate of a stellar bar in the merger remnant.
Saha, Kanak, Di matteo, Paola, Combes, Francoise, Ghosh, Soumavo   +3 more
core   +1 more source