Based on a new large, homogeneous photometric database of 69 Galactic globular clusters extended out to 42 kpc from the galactic center, a set of distance and...
The Millenium Outburst of the Yellow Hypergiant ρ Cassiopeiae
We report the largest mass-loss rate of ~5 % of the solar mass per year, directly observed in any stellar object so far during the recent outburst of the Yellow...
The Millennium Outburst of the Cool Hypergiant rho Cassiopeiae: Spectroscopy and Modeling
Between 2000 June and September an exceptional variability phase occurred in the peculiar F-type hypergiant Rho Cas, when the V-brightness dimmed by at least a...
The missing mass conundrum of post-common-envelope planetary nebulae
Most planetary nebulae (PNe) show beautiful, axisymmetric morphologies despite their progenitor stars being essentially spherical. Angular momentum provided by...
The missing mass conundrum of post-common-envelope planetary nebulae
Most planetary nebulae (PNe) show beautiful, axisymmetric morphologies despite their progenitor stars being essentially spherical. Angular momentum provided by...
The MIUSCAT stellar population models: constraints from optical photometry
We present the spectral extension of our stellar population synthesis models based on the MILES and CaT empirical stellar spectral libraries. For this purpose...
The mixed Hodge structure on the fundamental group of hyperelliptic curves and higher cycles
In this paper we give a geometrical interpretation of an extension of mixed Hodge structures (MHS) obtained from the canonical MHS on the group ring of the...
The molecular diversity of TNOs revealed by JWST and its links to protoplanetary composition and processes
Introduction: Bodies orbiting the trans-Neptunian regions (TNOs) are windows into Solar System formation, history and evolution. They are remnants from the...