Search Results - "Bloecker, T"

Bipolar outflow on the asymptotic giant branch - the case of IRC+10011 by Vinković, Dejan, Blöcker, Thomas, Hofmann, Karl-Heinz, Elitzur, Moshe, Weigelt, Gerd

“…ABSTRACT Near‐infrared imaging of the asymptotic giant branch (AGB) star IRC+10011 (= CIT3) reveals the presence of a bipolar structure within the central ∼0.1…”
Get full text

Massive perivillous fibrin deposition, chronic histiocytic intervillositis and villitis of unknown etiology: Lesions of the placenta at the fetomaternal interface with risk of recurrence by Feist, H, Blöcker, T, Hussein, K

“…Maternal floor infarction/massive perivillous fibrin deposition (MFI/MFD), chronic histiocytic intervillositis (CHIV) and villitis of unknown etiology (VUE)…”
Get full text

H- and He-burning central stars and the evolution to white dwarfs by Bloecker, T

“…The structure and evolution of central stars of planetary nebulae (CSPNe) is reviewed. CSPNe represent the rapid transitional stage between the Asymptotic…”
Get full text

Evolution on the AGB and beyond: On the formation of H-deficient post-AGB stars by Bloecker, T

“…Astrophys.Space Sci. 275 (2001) 1-14 The evolution on the AGB and beyond is reviewed with respect to the origin of Wolf-Rayet central stars. We focus on…”
Get full text

Lithium Depletion in the Sun: A Study of Mixing Based on Hydrodynamical Simulations by Bloecker, T, Holweger, H, Freytag, B, Herwig, F, Ludwig, H-G, Steffen, M

“…Based on radiation hydrodynamics modeling of stellar convection zones, a diffusion scheme has been devised describing the downward penetration of convective…”
Get full text

Thermodynamical properties of stellar matter: II. Internal energy, temperature and density exponents and specific heats for stellar interiors by Stolzmann, W, Bloecker, T

“…Starting from the Helmholtz free energy we calculate analytically first- and second-order derivatives, as internal energy and specific heats, for the ideal…”
Get full text

Overshoot in Giant Stars by Herwig, F, Bloecker, T

“…The concept of overshoot has already been considered for numerous cases in stellar evolution calculations. We explore the consequences of overshoot at the…”
Get full text

A Semi-relativistic Equation of State for Stellar Interiors by Stolzmann, W, Bloecker, T

“…Using the technique of Pade Approximants for the correlation contributions of charged particles we are able to reproduce complex mathematical expressions by…”
Get full text

Spectral Observations of Stars in Late Stages of Stellar Evolution by Bloecker, T, Hofmann, K. -H, Weigelt, G

“…Interferometric observations of stars in late stages of stellar evolution and the impact of VLTI observations are discussed. Special attention is paid to the…”
Get full text

The evolution of helium white dwarfs: III. On the ages of millisecond pulsar systems by Schoenberner, D, Driebe, T, Bloecker, T

“…We employed recently computed evolutionary white-dwarf models with helium cores, supplemented by heavier models with carbon-oxygen cores, in order to…”
Get full text

AGB evolution with overshoot: hot bottom burning and dredge up by Bloecker, T, Herwig, F, Driebe, T

“…We calculated models of massive AGB stars with a self-consistent coupling of time-dependent mixing and nuclear burning for 30 isotopes and 74 reactions…”
Get full text

The Evolution of Helium White Dwarfs: Applications to Millisecond Pulsars by Driebe, T, Bloecker, T, Schoenberner, D

“…We present a grid of evolutionary tracks for low-mass white dwarfs with helium cores in the mass range from 0.179 to 0.414 M_sun. The lower mass limit is well…”
Get full text

The role of convective boundaries by Herwig, F, Bloecker, T, Schoenberner, D

“…We investigate the influence of convective overshoot on stellar evolution models of the thermal pulse AGB phase with M_ZAMS = 3 Msol. An exponential diffusive…”
Get full text

On the validity of the core-mass luminosity relation for TP-AGB stars with efficient dredge-up by Herwig, F, Schoenberner, D, Bloecker, T

“…We investigate the validity of the core mass - luminosity relation (CMLR), originally described by Paczynski (1970), for asymptotic giant branch stars under…”
Get full text

A multi-wavelength study of the oxygen-rich AGB star CIT 3: Bispectrum speckle interferometry and dust-shell modelling by Hofmann, K. -H, Balega, Y, Bloecker, T, Weigelt, G

“…(abridged) CIT 3 is an oxygen-rich long-period variable evolving along the AGB and one of the most extreme infrared AGB objects. We present the first…”
Get full text

AGB and Post-AGB Evolution: Structural and Chemical Changes by Bloecker, T, Osterbart, R, Weigelt, G, Balega, Y, Men'shchikov, A

“…Structural and chemical changes during the AGB and post-AGB evolution are discussed with respect to two recent observational and theoretical findings. On the…”
Get full text

Bispectrum speckle interferometry observations and radiative transfer modelling of the red supergiant NML Cyg: Multiple dust-shell structures evidencing previous superwind phases by Bloecker, T, Balega, Y, Hofmann, K. -H, Weigelt, G

“…(abridged) NML Cyg is a highly evolved OH/IR supergiant and supposed to be among the most luminous supergiants in the galaxy. We present the first diffraction…”
Get full text

Computer simulations of interferometric imaging with the VLT interferometer and its AMBER instrument by Przygodda, F, Bloecker, T, Hofmann, K. -H, Weigelt, G

“…We present computer simulations of interferometric imaging with the Very Large Telescope Interferometer (VLTI) of the European Southern Observatory (ESO) and…”
Get full text

Computer simulations of interferometric imaging with the VLT interferometer and the AMBER instrument by Bloecker, T, Hofmann, K. -H, Przygodda, F, Weigelt, G

“…We present computer simulations of interferometric imaging with the VLT interferometer and the AMBER instrument. These simulations include both the…”
Get full text

The dynamical evolution of the fragmented, bipolar dust shell around the carbon star IRC +10216: Rapid changes of a PPN-like structure? by Osterbart, R, Balega, Y, Bloecker, T, Men'shchikov, A, Weigelt, G

“…We present high-resolution J-, H-, and K-band observations and the first H-K color image of the carbon star IRC +10216. The images were reconstructed from 6m…”
Get full text