4 papers
HST's view of the youngest massive stars in the Magellanic Clouds
M. Heydari-Malayeri, M. R. Rosa, V. Charmandaris +5
Accurate physical parameters of newborn massive stars are essential ingredients to shed light on their formation, which is still an unsolved problem. The rare class of compact H II…
Response to "Reanalysis of the spectrum of the z=10 galaxy ISAAC/VLT observations of a lensed galaxy at z=10.0" by Weatherley et al. (astro-ph/0407150)
R. Pello, J. Richard, J. -F. Le Borgne +1
In a recent posting of a submitted paper Weatherley et al. re-analyse the spectroscopic data from our observations of Abell 1835 IR 1916, a galaxy we claimed to be at redshift z=10…
Spectroscopic analysis of newborn massive stars in SMC N81
F. Martins, D. Schaerer, M. Heydari-Malayeri
We present the first results of a spectroscopic study of young massive stars in the SMC High Excitation Blob N81. These stars have Mv values which are ~ 2 mag smaller than those of…
Signatures of Resonant Absoprtion in X-ray Spectra of Type 1 AGN
F. Nicastro, F. Fiore, G. Matt
We present photoionization models accounting for both photoelectric and resonant absorption. We demonstrate that resonance absorption lines are detectable even in moderate resoluti…