output
19942026
researchers with a paper here
collaborating institutions
Showing 2008 · astro-phShow all

145 papers · 2 filters

astro-ph2008★ 2 cited

A galaxy dynamo by supernova-driven interstellar turbulence

Oliver Gressel, Udo Ziegler, Detlef Elstner +1

Supernovae are the dominant energy source for driving turbulence within the interstellar plasma. Until recently, their effects on magnetic field amplification in disk galaxies rema…

astro-ph2008★ 1 cited

Motivations for Imaging Spectroscopy at Dome C

Andreas Kelz

Antarctica offers unique conditions for ground-based observations, such as low sky background in the infrared, improved seeing, and low turbulence and scintillation noise. These pr…

astro-ph2008★ 53 cited

Shape parameters of Galactic open clusters

N. V. Kharchenko, P. Berczik, M. I. Petrov +4

(abridged) In this paper we derive observed and modelled shape parameters (apparent ellipticity and orientation of the ellipse) of 650 Galactic open clusters identified in the ASCC…

astro-ph2008★ 76 cited

Post Common Envelope Binaries from SDSS. V: Four eclipsing white dwarf main sequence binaries

S. Pyrzas, B. T. Gänsicke, T. R. Marsh +7

We identify SDSS011009.09+132616.1, SDSS030308.35+005444.1, SDSS143547.87+373338.5 and SDSS154846.00+405728.8 as four eclipsing white dwarf plus main sequence (WDMS) binaries from…

astro-ph2008★ 97 cited

The butterfly diagram in the 18th century

Rainer Arlt

Digitized images of the drawings by J.C. Staudacher were used to determine sunspot positions for the period of 1749-1796. From the entire set of drawings, 6285 sunspot positions we…

astro-ph2008

Radial differential rotation vs surface differential rotation: investigation based on dynamo models

H. Korhonen, D. Elstner

Differential rotation plays a crucial role in the alpha-omega dynamo, and thus also in creation of magnetic fields in stars with convective outer envelopes. Still, measuring the ra…