3 papers
astro-ph2005
GOYA Survey: U and B Number Counts in the Groth-Westphal Strip
M. C. Eliche-Moral, M. Balcells, M. Prieto +3
We present U and B galaxy differential number counts from a field of ~900 arcmin^2, based on GOYA Survey imaging of the HST Groth-Westphal strip. Source detection efficiency correc…
astro-ph2005
Detailed spectroscopic analysis of the Trapezium cluster stars inside the Orion nebula
S. Simon-Diaz, A. Herrero, C. Esteban +1
We present the results of a spectroscopic analysis of the Trapezium cluster stars inside the Orion Nebula. The rotational velocities have been obtained using Fourier analysis metho…
astro-ph2004
Phase diversity restoration of sunspot images I. Relations between penumbral and photospheric features
J. A. Bonet, I. Marquez, R. Muller +2
We investigate the dynamics of and the relations between small-scale penumbral and photospheric features near the outer penumbral boundary: penumbral grains (PGs), dark penumbral f…