The Milky Way Bulge Metallicity Distribution Function from DR14 APOGEE Results
The view of the Milky Way bulge has evolved considerably over the past decade with recent findings of a multi-component metallicity distribution, the detection...
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...