Highlights - Volume 468-2 (June III 2007)
- Details
- Published on 31 May 2007
| HIGHLIGHTS: this week in A&A |
Volume 468-2 (June III 2007)
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A&A special feature
The XMM-Newton extended survey of the Taurus molecular cloud This issue of A&A proudly features 15 articles presenting the first results of the XMM-Newton Extended Survey of the Taurus molecular cloud (XEST), which used the most sensitive combination of X-ray instruments presently available, the European Photon Imaging Cameras (EPIC) and the Reflection Grating Spectrometers (RGS), together with the Optical Monitor (OM) onboard the ESA mission XMM-Newton to study the properties of the young stellar population in the cloud. |
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Modelling the HH30 outflow
“A 3-mode variable ejection velocity, precessingjet model for HH30”, by A Esquivel, A.C. Raga, and F. De Colle. A&A 468, p. 613 This paper presents a new computational hydrodynamic model of the HH30 outflow. The authors used a sophisticated computationalfluid code which incorporates a substantial chemical reaction network. Using this approach, they succeed in reproducing the knotty structure of the apparent head of the HH30 jet. |
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| In section 8. Stellar atmospheres “Behavior of Li abundances in solar-analog stars. Evidence for the line-width dependence”, by Y. Takeda et al. A&A 468, p. 663 The authors study field solar-analog G dwarfs, which are known to show a large dispersion in surface lithium abundances, despite similar stellar parameters. They present an extensive study of Li abundances and their dependence on stellar parameters, carried out for a homogeneous sample of 118 solar analogs. They conclude that stellar angular momentum may play the decisive role in determining the surface Li abundances of solar-analogs. |
© Astronomy & Astrophysics 2007