1) Polarized Line Formation theories: the relevance of partial non-coherence in light scattering. Dr. Sampoorna Malali The basic theoretical tool for diagnosing...
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Charla(1) Polarized Line Formation theories: the relevance of partial; (2) TBD; (3) On all things transit.
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CharlaAndromeda II: a merger remnant or a product of tidal stirring
I will present an evolutionary model for the origin of Andromeda II, a dSph satellite of M31, involving a merger between two disky dwarf galaxies than explains...
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PublicaciónApplication of a new evolutionary model for stellar populations to photometric maps of M32
A cyclical approximation of the evolutionary synthesis of stellar populations has been developed into a general solution for the mass and time-dependence of the...
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CharlaAstrophysical probes of dark matter
Dark matter makes up most of the mass of the Universe but remains mysterious. I discuss recent progress in constraining its properties by measuring its...
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PublicaciónAsymptotic giant branch stars in NGC 6822: Probes of star formation history
About 500 asymptotic giant branch (AGB) stars have been resolved and photometrically measured in the Local Group (LG) dwarf irregular galaxy NGC 6822. They draw...
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PublicaciónBVR photometry of the Sculptor dwarf spheroidal galaxy .
We present accurate B, V, R photometry of the Sculptor dwarf spheroidal galaxy. The data have been collected with the Wide Field Imager available at 2.2 m ESO...
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PublicaciónCan Cuspy Dark-matter-dominated Halos Hold Cored Stellar Mass Distributions?
According to the current concordance cosmological model, dark matter (DM) particles are collisionless and produce self-gravitating structures with a central...
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PublicaciónCCD photometry of resolved dwarf irregular galaxies. I - Sextans A
CCD UBV photometry of 2279 stars in Sextans A is presented. Differences with the photometric scales of Sandage and Carlson (1985) and Hoessel et al. (1983) are...
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PublicaciónCCD photometry of resolved dwarf irregular galaxies. II - DDO 187. III - GR 8
CCD photometry of resolved dwarf irregular galaxies was obtained with the 4-m Cerro Tololo Interamerican Observatory telescope in February 1985. BV data from 77...