activity
20072025
most citedSolving the discrepancy between the seismic and photospheric solar radius

109 citations · 347 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.SR2025

Height-dependent thermal properties of extreme-ultraviolet campfires in the quiet Sun

O. Podladchikova, A. Warmuth, L. Harra +30

Small-scale impulsive energy-release events are widely considered a key ingredient of quiet-Sun coronal heating. We quantified the thermal-energy content of extreme-ultraviolet (EU…

astro-ph.IM2019★ 1 cited

The Solar Orbiter SPICE instrument -- An extreme UV imaging spectrometer

The SPICE Consortium, :, M. Anderson +88

The Spectral Imaging of the Coronal Environment (SPICE) instrument is a high-resolution imaging spectrometer operating at extreme ultraviolet (EUV) wavelengths. In this paper, we p…

astro-ph.SR2017

The nature of solar brightness variations

A. I. Shapiro, S. K. Solanki, N. A. Krivova +3

The solar brightness varies on timescales from minutes to decades. Determining the sources of such variations, often referred to as solar noise, is of importance for multiple reaso…

astro-ph.SR2015★ 47 cited

The role of the Fraunhofer lines in solar brightness variability

A. I. Shapiro, S. K. Solanki, N. A. Krivova +2

The solar brightness varies on timescales from minutes to decades. A clear identification of the physical processes behind such variations is needed for developing and improving ph…

astro-ph.SR2011★ 23 cited

Solar total irradiance in cycle 23

N. A. Krivova, S. K. Solanki, W. Schmutz

The apparently unusual behaviour of the TSI during the most recent minimum of solar activity has been interpreted as evidence against solar surface magnetism as the main driver of…

astro-ph.SR2010★ 95 cited

NLTE solar irradiance modeling with the COSI code

A. I. Shapiro, W. Schmutz, M. Schoell +2

Context. The solar irradiance is known to change on time scales of minutes to decades, and it is suspected that its substantial fluctua- tions are partially responsible for climate…

astro-ph2008★ 72 cited

NLTE model calculations for the solar atmosphere with an iterative treatment of opacity distribution functions

M. Haberreiter, W. Schmutz, I. Hubeny

Modeling the variability of the solar spectral irradiance is a key factor for understanding the solar influence on the climate of the Earth. As a first step to calculating the sola…

astro-ph2007★ 109 cited

Solving the discrepancy between the seismic and photospheric solar radius

Margit Haberreiter, Alexander G. Kosovichev, Werner Schmutz

Two methods are used to observationally determine the solar radius: One is the observation of the intensity profile at the limb, the other one uses f-mode frequencies to derive a '…