8 papers · 1 filter
Massive stars and the energy balance of the interstellar medium. II. The 35 solar mass star and a solution to the "missing wind problem"
Tim Freyer, Gerhard Hensler, Harold W. Yorke
We continue our numerical analysis of the morphological and energetic influence of massive stars on their ambient interstellar medium for a 35 solar mass star that evolves from the…
Turbulent Mixing in the Outer Solar Nebula
N. J. Turner, K. Willacy, G. Bryden +1
The effects of turbulence on the mixing of gases and dust in the outer Solar nebula are examined using 3-D MHD calculations in the shearing-box approximation with vertical stratifi…
Photon Bubbles in Young Massive Stars
N. J. Turner, H. W. Yorke, A. Socrates +1
Spectroscopic studies indicate that gas in the photospheres of young O stars moves at speeds up to the sound speed. We show, using two-dimensional radiation MHD calculations and re…
Does the Lunar Surface Still Offer Value As a Site for Astronomical Observatories?
Daniel F. Lester, Harold W. Yorke, John C. Mather
Current thinking about the Moon as a destination has revitalized interest in lunar astronomical observatories. Once seen by a large scientific community as a highly enabling site,…
Formation of Massive Stars via Accretion
Harold W. Yorke
The collapse of massive molecular clumps can produce high mass stars, but the evolution is not simply a scaled-up version of low mass star formation. Outflows and radiative effects…
Massive stars and the energy balance of the ISM. I. The impact of an isolated 60 Msun star
Tim Freyer, Gerhard Hensler, Harold W. Yorke
We present results of numerical simulations carried out with a 2D radiation hydrodynamics code in order to study the impact of massive stars on their surrounding interstellar mediu…