activity
20112018
most citedInfrared Transmission Spectroscopy of the Exoplanets HD209458b and XO-1b Using the Wide Field Camera-3 on the Hubble Space Telescope

530 citations · 2.5k across the 22 of their papers we have counts for

collaborators
Showing 2014Show all

6 papers · 1 filter

astro-ph.SR2014★ 7 cited

The Stagger-grid: A grid of 3D stellar atmosphere models - VI. Surface appearance of stellar granulation

Zazralt Magic, Martin Asplund

In the surface layers of late-type stars, stellar convection is manifested with its typical granulation pattern due to the presence of convective motions. The resulting photospheri…

astro-ph.SR2014★ 19 cited

Planet transit and stellar granulation detection with interferometry

Andrea Chiavassa, Roxanne Ligi, Zazralt Magic +3

Aims. We used realistic three-dimensional (3D) radiative hydrodynamical (RHD) simulations from the Stagger-grid and synthetic images computed with the radiative transfer code Optim…

astro-ph.SR2014★ 2 cited

The Stagger-grid: A grid of 3D stellar atmosphere models - V. Fe line shapes, shifts and asymmetries

Zazralt Magic, Remo Collet, Martin Asplund

We present a theoretical study of the effects and signatures of realistic velocity field and atmospheric inhomogeneities associated with convective motions at the surface of cool l…

astro-ph.SR2014★ 150 cited

The Stagger-grid: A grid of 3D stellar atmosphere models - IV. Limb darkening coefficients

Zazralt Magic, Andrea Chiavassa, Remo Collet +1

We compute the emergent stellar spectra from the UV to far infrared for different viewing angles using realistic 3D model atmospheres for a large range in stellar parameters to pre…

astro-ph.SR2014★ 154 cited

The Stagger-grid: A grid of 3D stellar atmosphere models - III. The relation to mixing-length convection theory

Zazralt Magic, Achim Weiss, Martin Asplund

We investigate the relation between 1D atmosphere models that rely on the mixing length theory and models based on full 3D radiative hydrodynamic (RHD) calculations to describe con…

astro-ph.SR2014★ 380 cited

A single low-energy, iron-poor supernova as the source of metals in the star SMSS J 031300.36-670839.3

S. C. Keller, M. S. Bessell, A. Frebel +11

The element abundance ratios of four low-mass stars with extremely low metallicities indicate that the gas out of which the stars formed was enriched in each case by at most a few,…