Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck Institute for Gravitational PhysicsDE1.5k papers
- Max Planck Institute for Extraterrestrial PhysicsDE1.4k papers
- Max Planck Institute for AstrophysicsDE1.2k papers
- Max Planck Institute for Nuclear PhysicsDE1.1k papers
- Centre National de la Recherche ScientifiqueFR986 papers
- Max Planck Institute for the Physics of Complex SystemsDE799 papers
- Max Planck Institute for MathematicsDE519 papers
- Heidelberg UniversityDE513 papers
- Max Planck Institute for PhysicsDE507 papers
- Max Planck Institute for Solar System ResearchDE483 papers
- California Institute of TechnologyUS481 papers
- National Institute for AstrophysicsIT450 papers
60 papers · 2 filters
A Comparison Between Nonlinear Force-Free Field and Potential Field Models Using Full-Disk SDO/HMI Magnetogram
Tilaye Tadesse, T. Wiegelmann, B. Inhester +3
Measurements of magnetic fields and electric currents in the pre-eruptive corona are crucial to study solar eruptive phenomena, like flare and coronal mass ejections(CMEs). However…
NLTT5306: The shortest Period Detached White Dwarf + Brown Dwarf Binary
P. R. Steele, R. P. Saglia, M. R. Burleigh +6
We have spectroscopically confirmed a brown dwarf mass companion to the hydrogen atmosphere white dwarf NLTT5306. The white dwarf's atmospheric parameters were measured using Sloan…
The standard model of low-mass star formation applied to massive stars: a multi-wavelength picture of AFGL 2591
K. G. Johnston, D. S. Shepherd, T. P. Robitaille +1
This paper aims to investigate the hypothesis that the embedded luminous star AFGL2591-VLA3 (2.3E5Lsun at 3.33kpc) is forming according to a scaled-up version of a low-mass star fo…
What controls the magnetic geometry of M dwarfs?
T. Gastine, J. Morin, L. Duarte +3
Context: observations of rapidly rotating M dwarfs show a broad variety of large-scale magnetic fields encompassing dipole-dominated and multipolar geometries. In dynamo models, th…
A solar tornado triggered by flares?
N. K. Panesar, D. E. Innes, S. K. Tiwari +1
Solar tornados are dynamical, conspicuously helical magnetic structures mainly observed as a prominence activity. We investigate and propose a triggering mechanism for the solar to…
A search for the hidden population of AM CVn binaries in the Sloan Digital Sky Survey
P. J. Carter, T. R. Marsh, D. Steeghs +7
We present the latest results from a spectroscopic survey designed to uncover the hidden population of AM Canum Venaticorum (AM CVn) binaries in the photometric database of the Slo…
Solar magneto-convection
Manfred Schüssler
An overview is given about recent developments and results of comprehensive simulations of magneto-convective processes in the near-surface layers and photosphere of the Sun. Simul…
Direct Imaging Discovery of a `Super-Jupiter' Around the late B-Type Star Kappa And
J. Carson, C. Thalmann, M. Janson +52
We present the direct imaging discovery of an extrasolar planet, or possible low-mass brown dwarf, at a projected separation of 55 +/- 2 AU (1.058 +/- 0.007 arcsec) from the B9-typ…
Red Giant Oscillations: Stellar Models and Mode Frequency Calculations
A. Jendreieck, A. Weiss, V. Silva Aguirre +5
We present preliminary results on modelling KIC 7693833, the so far most metal-poor red-giant star observed by {\it Kepler}. From time series spanning several months, global oscill…
Modelling stellar activity cycles using deep-seated dynamos and surface flux transport
Emre Işik, Dieter Schmitt, Manfred Schüssler
We investigate the relations between tachocline-based dynamos and the surface flux transport mechanisms in stars with outer convection zones. Using our combined models of flux gene…
Nanoflare statistics in an active region 3D MHD coronal model
Sven Bingert, Hardi Peter
Context. We investigate the statistics of the spatial and temporal distribution of the coronal heating in a three-dimensional magneto- hydrodynamical (3D MHD) model. The model desc…
High-resolution supernova neutrino spectra represented by a simple fit
Irene Tamborra, Bernhard Mueller, Lorenz Huedepohl +2
To study the capabilities of supernova neutrino detectors, the instantaneous spectra are often represented by a quasi-thermal distribution of the form f(E) = E^alpha e^{-(alpha+1)E…
Unveiling systematic biases in 1D LTE excitation-ionisation balance of Fe for FGK stars. A novel approach to determination of stellar parameters
Gregory R. Ruchti, Maria Bergemann, Aldo Serenelli +2
We present a comprehensive analysis of different techniques available for the spectroscopic analysis of FGK stars, and provide a recommended methodology which efficiently estimates…
Quiet Sun Explosive Events: Jets, Splashes, and Eruptions
Davina Innes, Luca Teriaca
Explosive events are small transition region phenomena characterised by broad non-Gaussian wings in their line profiles. Images from the Solar Dynamics Observatory (SDO) give a fir…
Are the strengths of solar cycles determined by converging flows towards the activity belts?
R. H. Cameron, M. Schuessler
It is proposed that the observed near-surface inflows towards the active regions and sunspot zones provide a nonlinear feedback mechanism that limits the amplitude of a Babcock-Lei…
Radio pulsar variability
E. F. Keane
Pulsars are potentially the most remarkable physical laboratories we will ever use. Although in many senses they are extremely clean systems there are a large number of instabiliti…
Full-disk nonlinear force-free field extrapolation of SDO/HMI and SOLIS/VSM magnetograms
Tilaye Tadesse, T. Wiegelmann, B. Inhester +3
Extrapolation codes in Cartesian geometry for modelling the magnetic field in the corona do not take the curvature of the Sun's surface into account and can only be applied to rela…
Modeling Magnetic Field Structure of a Solar Active Region Corona using Nonlinear Force-Free Fields in Spherical Geometry
Y. Guo, M. D. Ding, Y. Liu +3
We test a nonlinear force-free field (NLFFF) optimization code in spherical geometry using an analytical solution from Low and Lou. Several tests are run, ranging from idealized ca…
A New Multi-Dimensional General Relativistic Neutrino Hydrodynamics Code of Core-Collapse Supernovae III. Gravitational Wave Signals from Supernova Explosion Models
Bernhard Mueller, Hans-Thomas Janka, Andreas Marek
We present a detailed theoretical analysis of the gravitational-wave (GW) signal of the post-bounce evolution of core-collapse supernovae (SNe), employing for the first time relati…
Synthetic Light Curves for Born Again Events: Preliminary Results
Marcelo M. Miller Bertolami, René D. Rohrmann
The development of surveys which will be able to cover a large region of the sky several times per year will allow the massive detection of transient events taking place in timesca…
Inferring the magnetic field vector in the quiet Sun. II. Interpreting results from the inversion of Stokes profiles
J. M. Borrero, P. Kobel
In a previous paper, we argued that the inversion of Stokes profiles applied to spectropolarimetric observations of the solar internetwork yield unrealistically large values of the…
Three-dimensional non-LTE radiative transfer effects in Fe I lines I. Flux sheet and flux tube geometries
R. Holzreuter, S. K. Solanki
In network and active region plages, the magnetic field is concentrated into structures often described as flux tubes (FTs) and sheets (FSs). 3-D radiative transfer (RT) is importa…
On the brightness distribution of Type Ia supernovae from violent white dwarf mergers
A. J. Ruiter, S. A. Sim, R. Pakmor +8
We investigate the brightness distribution expected for thermonuclear explosions that might result from the ignition of a detonation during the violent merger of white dwarf (WD) b…
Helioseismology challenges models of solar convection
Laurent Gizon, Aaron C. Birch
Convection is the mechanism by which energy is transported through the outermost 30% of the Sun. Solar turbulent convection is notoriously difficult to model across the entire conv…