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Spitzer IRS Spectra and Envelope Models of Class I Protostars in Taurus
E. Furlan, M. McClure, N. Calvet +8
We present Spitzer Infrared Spectrograph spectra of 28 Class I protostars in the Taurus star-forming region. The 5 to 36 micron spectra reveal excess emission from the inner region…
Manganese trends in a sample of thin and thick disk stars. The origin of Mn
S. Feltzing, M. Fohlman, T. Bensby
CONTEXT: Manganese is an iron-peak element and although the nucleosynthesis path that leads to its formation is fairly well understood, it remains unclear which objects, SN II and/…
The nature of the metal-rich thick disk
T. Bensby, A. R. Zenn, M. S. Oey +1
We have traced the Galactic thick disk to its, to date, highest metallicities. Based on high-resolution spectroscopic observations of 187 F and G dwarf stars that kinematically can…
The origin and chemical evolution of carbon in the Galactic thin and thick disks
T. Bensby, S. Feltzing
[ABRIDGED] In order to trace the origin and evolution of carbon in the Galactic disk we have determined carbon abundances in 51 nearby F and G dwarf stars. The sample is divided in…
alpha-, r-, and s-process element trends in the Galactic thin and thick disks
T. Bensby, S. Feltzing, I. Lundström +1
From a detailed elemental abundance analysis of 102 F and G dwarf stars we present abundance trends in the Galactic thin and thick disks for 14 elements (O, Na, Mg, Al, Si, Ca, Ti,…
First observation of Jupiter by XMM-Newton
G. Branduardi-Raymont, R. F. Elsner, G. R. Gladstone +4
We present the first X-ray observation of Jupiter by XMM-Newton. Images taken with the EPIC cameras show prominent emission, essentially all confined to the 0.2-2.0 keV band, from…