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The growth history of local M33-mass bulgeless spiral galaxies
Xiaoyu Kang, Rolf-Peter Kudritzki, Fenghui Zhang
NGC7793, NGC300, M33 and NGC2403 are four nearby undisturbed and bulgeless low-mass spiral galaxies with similar morphology and stellar mass. They are ideal laboratories to study d…
Oxygen, sulfur, and iron radial abundance gradients of classical Cepheids across the Galactic thin disk
R. da Silva, V. D'Orazi, M. Palla +25
Classical Cepheids (CCs) are solid distance indicators and tracers of young stellar populations. Our aim is to provide iron, oxygen, and sulfur abundances for the largest and most…
On the Decline of Star Formation during the Evolution of Galaxies
Adelheid Teklu, Rolf-Peter Kudritzki, Klaus Dolag +2
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 i…
The Araucaria Project: Improving the cosmic distance scale
The Araucaria Project, :, G. Pietrzyński +21
The book consists of a number of short articles that present achievements of the Araucaria members, collaborators, and friends, in various aspects of distance determinations and re…
Mass Metallicity Relationship of SDSS Star Forming Galaxies: Population Synthesis Analysis and Effects of Star Burst Length, Extinction Law, Initial Mass Function and Star Formation Rate
Eva Sextl, Rolf-Peter Kudritzki, H. Jabran Zahid +1
We investigate the mass-metallicity relationship of star forming galaxies by analysing the absorption line spectra of 200,000 galaxies in the Sloan Digital Sky Survey. The ga…
The metallicity and distance of NGC 2403 from blue supergiants
Fabio Bresolin, Rolf-Peter Kudritzki, Miguel A. Urbaneja
We present the first quantitative spectral analysis of blue supergiant stars in the nearby galaxy NGC 2403. Out of a sample of 47 targets observed with the LRIS spectrograph at the…