Results 11 to 20 of about 169 (166)

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

open access: yesHighlights 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]

open access: yesAstronomy & 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

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

open access: yesHepatology, 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   +14 more
wiley   +1 more source

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

open access: yesInternational 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

open access: yesThe 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   +2 more
openaire   +6 more sources

On the stellar content of the Carina dwarf spheroidal galaxy

open access: yes, 2010
Accepted on PASP, 12 pages, 6 ...
Bono, Guillaume   +22 more
openaire   +5 more sources

STELLAR, GAS, AND DARK MATTER CONTENT OF BARRED GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2017
ABSTRACT We select a sample of galaxies from the Sloan Digital Sky Survey Data Release 7 (SDSS-DR7) where galaxies are classified, through visual inspection, as hosting strong bars, weak bars, or as unbarred galaxies, and make use of H i mass and kinematic information from the Arecibo Legacy Fast ALFA survey catalog, to study the stellar,
openaire   +2 more sources

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

open access: yesThe 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 ...
openaire   +2 more sources

The stellar mass content of distant galaxy groups [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2007
We have obtained near-infrared imaging of 58 galaxy groups, in the redshift range 0 ...
Balogh, Michael L.   +10 more
openaire   +4 more sources

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

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