output
19972026
most citedBasic physical parameters of a selected sample of evolved stars

492 citations

Showing 2011 · astro-ph.SRShow all

25 papers · 2 filters

astro-ph.SR2011★ 28 cited

Siphon flow in a cool magnetic loop

C. Bethge, C. Beck, H. Peter +1

We investigate the properties of a structure in the solar chromosphere in an active region to find out whether the feature is consistent with a siphon flow in a magnetic loop fille…

astro-ph.SR2011★ 56 cited

The formation of sunspot penumbra. I. Magnetic field properties

Reza Rezaei, Nazaret Bello Gonzalez, Rolf Schlichenmaier

We study the formation of a sunspot penumbra in the active region NOAA11024. We simultaneously observed the Stokes parameters of the photospheric iron lines at 1089.6 nm with the T…

astro-ph.SR2011★ 405 cited

Simulations of stellar convection with CO5BOLD

Bernd Freytag, Matthias Steffen, Hans-Günter Ludwig +3

High-resolution images of the solar surface show a granulation pattern of hot rising and cooler downward-sinking material -- the top of the deep-reaching solar convection zone. Con…

astro-ph.SR2011★ 46 cited

The frontier between Small-scale bipoles and Ephemeral Regions in the solar photosphere: Emergence and Decay of an Intermediate-scale bipole observed with IMaX/SUNRISE

S. L. Guglielmino, V. Martínez Pillet, J. A. Bonet +7

We report on the photospheric evolution of an intermediate-scale (~4 Mm footpoint separation) magnetic bipole, from emergence to decay, observed in the quiet Sun at high spatial 0"…

astro-ph.SR2011★ 33 cited

Magnetic field emergence in mesogranular-sized exploding granules observed with SUNRISE/IMaX data

J. Palacios, J. Blanco Rodríguez, S. Vargas Domínguez +11

We report on magnetic field emergences covering significant areas of exploding granules. The balloon-borne mission SUNRISE provided high spatial and temporal resolution images of t…

astro-ph.SR2011★ 159 cited

Magnetic Structure of Sunspots

J. M. Borrero, K. Ichimoto

In this review we give an overview about the current state-of-knowledge of the magnetic field in sunspots from an observational point of view. We start by offering a brief descript…