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NICEST, a near-infrared color excess method tailored for small-scale structures
Marco Lombardi
Observational data and theoretical calculations show that significant small-scale substructures are present in dark molecular clouds. These inhomogeneities can provide precious hin…
The Hubble Legacy Archive NICMOS Grism Data
Wolfram Freudling, Martin Kümmel, Jonas Haase +6
The Hubble Legacy Archive (HLA) aims to create calibrated science data from the Hubble Space Telescope archive and make them accessible via user-friendly and Virtual Observatory (V…
A twelve-image gravitational lens system in the z ~ 0.84 cluster Cl J0152.7-1357
C. Grillo, M. Lombardi, P. Rosati +6
Gravitational lens modeling is presented for the first discovered example of a three-component source for which each component is quadruply imaged. The lens is a massive galaxy mem…
Hipparcos distances of Ophiuchus and Lupus cloud complexes
M. Lombardi, C. Lada, J. Alves
We combine extinction maps from the Two Micron All Sky Survey (2MASS) with Hipparcos and Tycho parallaxes to obtain reliable and high-precision estimates of the distance to the Oph…
Stellar mass estimates in early-type galaxies from lensing+dynamical and photometric measurements
C. Grillo, R. Gobat, P. Rosati +1
In this paper we compare two different diagnostics for estimating stellar masses in early-type galaxies and we establish their level of reliability. In particular, we consider the…
Cosmological parameters from strong gravitational lensing and stellar dynamics in elliptical galaxies
C. Grillo, M. Lombardi, G. Bertin
We show how the combination of observations related to strong gravitational lensing and stellar dynamics in ellipticals offers a new way to measure the cosmological matter and dark…