Periodic mass-loss episodes due to an oscillation mode with variable amplitude in the hot supergiant HD?50064***

Authors: C. Aerts, K. Lefever, A. Baglin, P. Degroote, R. Oreiro, M. Vu?kovi?, K. Smolders, B. Acke, T. Verhoelst, M. Desmet, M. Godart, A. Noels, M.-A. Dupret, M. Auvergne, F. Baudin, C. Catala, E. Michel and R. Samadi.<br />Astronomy and Astrophysics Vol. 513 , page L11<br />Published online: 29/04/2010<br />
Keywords:
asteroseismology ; stars: oscillations ; stars: winds, outflows ; stars: individual: HD 50064 ; stars: atmospheres ;
supergiants .

Rotational spectra of isotopic species of methyl cyanide, CH_3CN, in their ground vibrational states up to terahertz frequencies [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Cosmological parameter extraction and biases from type Ia supernova magnitude evolution [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Continuous monitoring of pulse period variations in Hercules X-1 using Swift/BAT [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Constraining the ortho-to-para ratio of H{_2} with anomalous H{_2}CO absorption [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
A photometric and spectroscopic study of the new dwarf spheroidal galaxy in Hercules - Metallicity, velocities, and a clean list of RGB members [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Luminosities and mass-loss rates of SMC and LMC AGB stars and red supergiants [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Electron beam – plasma system with the return current and directivity of its X-ray emission [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The propagation of the shock wave from a strong explosion in a plane-parallel stratified medium: the Kompaneets approximation [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Analysis of hydrogen-rich magnetic white dwarfs detected in the Sloan Digital Sky Survey [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Letter: Centaurus A as TeV \gamma-ray and possible UHE cosmic-ray source [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Young pre-low-mass X-ray binaries in the propeller phase - Nature of the 6.7-h periodic X-ray source 1E 161348-5055 in RCW 103 [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Radiative rates and electron impact excitation rates for transitions in Cr VIII [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Solar granulation from photosphere to low chromosphere observed in Ba II 4554 Å line [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Does the HD 209458 planetary system pose a challenge to the stellar atmosphere models? [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Effect of asymmetry of the radio source distribution on the apparent proper motion kinematic analysis [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Destriping CMB temperature and polarization maps [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Search for cold debris disks around M-dwarfs. II [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Precise data on Leonid fireballs from all-sky photographic records [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
An X-ray view of 82 LINERs with Chandra and XMM-Newton data [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Radio observations of ZwCl 2341.1+0000: a double radio relic cluster [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Candidate free-floating super-Jupiters in the young \sigma Orionis open cluster [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The metallicity gradient as a tracer of history and structure: the Magellanic Clouds and M33 galaxies [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
XMMSL1 J060636.2-694933: an XMM-Newton slew discovery and Swift/Magellan follow up of a new classical nova in the LMC [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The inner rim structures of protoplanetary discs [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The solar Ba{\sf II} 4554 Å line as a Doppler diagnostic: NLTE analysis in 3D hydrodynamical model [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Magnetic evolution of superactive regions - Complexity and potentially unstable magnetic discontinuities [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Low-mass protostars and dense cores in different evolutionary stages in IRAS 00213+6530 [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
PMAS optical integral field spectroscopy of luminous infrared galaxies - I. The atlas [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
First AGILE catalog of high-confidence gamma-ray sources [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Radiative hydrodynamics simulations of red supergiant stars - I. interpretation of interferometric observations [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Extrasolar planets and brown dwarfs around A–F type stars - VII. \theta Cygni radial velocity variations: planets or stellar phenomenon? [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Cosmic rays and the magnetic field in the nearby starburst galaxy NGC 253 - II. The magnetic field structure [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Physical structure and water line spectrum predictions of the intermediate mass protostar OMC2-FIR4 [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The bright galaxy population of five medium redshift clusters - II. Quantitative galaxy morphology [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Dust in brown dwarfs and extra-solar planets - II. Cloud formation for cosmologically evolving abundances [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The quiet Sun magnetic field observed with ZIMPOL on THEMIS - I. The probability density function [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Complexity in the sunspot cycle [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Properties and nature of Be stars - 26. Long-term and orbital changes of \zeta Tauri [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The massive Wolf-Rayet binary LSS 1964 (=WR 29) - II. The V light curve [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Supernova progenitor stars in the initial range of 23 to 33 solar masses and their relation with the SNR Cassiopeia A [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The Hertzsprung-Russell Diagram of Star Clusters [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Table of the 10 Brightest stars within 10 Parsecs of the Sun [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The Hertzsprung-Russell Diagram of the Nearest Stars [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Magnitude and Color in Astronomy [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Stellar Types [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Brown Dwarfs [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Spotting the Minimum [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The Structure and Evolution of Brown Dwarfs [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
No Bang from the Big Bang Machine [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The Sizes of the Stars and the Planets [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
An Implausible Light Thrust [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
the Masses of Degenerate Objects [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Degeneracy Pressure [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Introduction to Degenerate Objects [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The Radii of Degenerate Objects [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The Inevitability of Black Holes [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Scientific Pig-Out [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The Neutrino Cooling of Degenerate Dwarfs [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
The Neutrino Cooling of Neutron Stars [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Overview of Supernovae [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Energetics of Thermonuclear Supernovae [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Thermonuclear Supernovae [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Nuclear Reactions in Thermonuclear Supernovae [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Core-Collapse Supernovae [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Neutrinos and SN 1987A [Last Updated On: November 8th, 2009] [Originally Added On: November 8th, 2009]
Revealing the sub-AU asymmetries of the inner dust rim in the disk around the Herbig Ae star R Coronae Austrinae [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
Probing the dust properties of galaxies up to submillimetre wavelengths - I. The spectral energy distribution of dwarf galaxies using LABOCA [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
On the physical origin of the second solar spectrum of the Sc II line at 4247 Å [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
On detecting the large separation in the autocorrelation of stellar oscillation times series [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
Imaging the spotty surface of Betelgeuse in the H band [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
Chandra observation of Cepheus A: the diffuse emission of HH 168 resolved [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
A planetary eclipse map of CoRoT-2a - Comprehensive lightcurve modeling combining rotational-modulation and transits [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
The chemical composition of carbon stars. The R-type stars [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
Flow instabilities of magnetic flux tubes - IV. Flux storage in the solar overshoot region [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
Fragmentation of a dynamically condensing radiative layer [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
Temporal variations of the CaXIX spectra in solar flares [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
Deuterium chemistry in the Orion Bar PDR - “Warm” chemistry starring CH_{2}D^+ [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
Metal abundances in the cool cores of galaxy clusters [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
The nature of the X-ray binary IGR J19294+1816 from INTEGRAL, RXTE, and Swift observations [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]
Relating basic properties of bright early-type dwarf galaxies to their location in Abell 901/902 [Last Updated On: December 13th, 2009] [Originally Added On: December 13th, 2009]