31 citations · 148 across the 11 of their papers we have counts for
11 papers · 1 filter
Solar-like oscillations in accreting pre-main sequence stars: Insights and prospects
Johannes Jørgensen, Konstanze Zwintz, Ebraheem Farag +2
We present theoretical predictions for solar-like oscillators in the pre-main sequence phase of stellar evolution. Our pre-main sequence models start from a stellar seed of 0.01 so…
Catalogue of BRITE-Constellation targets I. Fields 1 to 14 (November 2013 - April 2016)
K. Zwintz, A. Pigulski, R. Kuschnig +25
The BRIght Target Explorer (BRITE) mission collects photometric time series in two passbands aiming to investigate stellar structure and evolution. Since their launches in the year…
The influence of metallicity on a combined stellar and disk evolution
L. Gehrig, T. Steindl, E. I. Vorobyov +2
The effects of an accretion disk are crucial to understanding the evolution of young stars. During the combined evolution, stellar and disk parameters influence each other, motivat…
The imprint of star formation on stellar pulsations
Thomas Steindl, Konstanze Zwintz, Eduard Vorobyov
In the earliest phases of their evolution, stars gain mass through the acquisition of matter from their birth clouds. The widely accepted classical concept of early stellar evoluti…
The Pre-main Sequence: Challenges and Prospects for Asteroseismology
Konstanze Zwintz, Thomas Steindl
Stars do not simply pop up on the main sequence. Before the stars arrive on the zero-age main sequence, they form in the collapses of molecular clouds, gain matter through accretio…
Pulsational instability of pre-main-sequence models from accreting protostars II. Modelling echelle diagrams of Scuti stars without rotational splitting
T. Steindl, K. Zwintz, M. Müllner
The physics of early stellar evolution (e.g. accretion processes) is often not properly included in the calculations of pre-main-sequence models, leading to insufficient model grid…
YY Hya and its interstellar environment
Stefan Kimeswenger, John R. Thorstensen, Robert A. Fesen +7
During a search for previously unknown Galactic emission nebulae, we discovered a faint 36' diameter Halpha emission nebula centered around the periodic variable YY Hya. Although t…
Pulsational instability of pre-main sequence models from accreting protostars. I. Constraining the input physics for accretion with spectroscopic parameters and stellar pulsations
T. Steindl, K. Zwintz, T. G. Barnes +2
Context: The pre-main sequence evolution is often simplified by choosing classical initial models. These have large initial radii and sufficient uniform contraction to make them fu…
Searching for solar-like oscillations in pre-main sequence stars using APOLLO
M. Müllner, K. Zwintz, E. Corsaro +5
In recent years, our understanding of solar-like oscillations from main sequence to red giant stars has improved dramatically thanks to pristine data collected from space telescope…
Tidally perturbed pulsations in the pre-main sequence Scuti binary RS Cha
T. Steindl, K. Zwintz, D. M. Bowman
Stellar components in binaries are subject to tidal forces which influence asteroseismic properties. Tidally pertubed pulsations have been reported for different objects but none o…
beta Cas: the first delta Scuti star with a dynamo magnetic field
K. Zwintz, C. Neiner, O. Kochukhov +10
F type stars are characterised by several physical processes such as different pulsation mechanisms, rotation, convection, diffusion, and magnetic fields. The rapidly rotating delt…