350 citations · 2.3k across the 34 of their papers we have counts for
34 papers
Core-collapse supernova progenitor constraints using the spatial distributions of massive stars in local galaxies
T. Kangas, L. Portinari, S. Mattila +7
We study the spatial correlations between the H emission and different types of massive stars in two local galaxies, the Large Magellanic Cloud (LMC) and Messier 33. We compare…
Spectroscopic study of solar twins and analogues
Juliet Datson, Chris Flynn, Laura Portinari
Context. Many large stellar surveys have been and are still being carried out, providing huge amounts of data, for which stellar physical parameters will be derived. Solar twins an…
Towards stellar effective temperatures and diameters at one per cent accuracy for future surveys
L. Casagrande, L. Portinari, I. S. Glass +8
The apparent size of stars is a crucial benchmark for fundamental stellar properties such as effective temperatures, radii and surface gravities. While interferometric measurements…
Solar analogues and Solar twins in the HARPS archive
Juliet Datson, Chris Flynn, Laura Portinari
We present 63 Solar analogues and twins for which high S/N archival data are available for the HARPS high resolution spectrograph at the ESO 3.6m telescope. We perform a differenti…
New Colour-Mass to Light Relations: the role of the Asymptotic Giant Branch phase and of interstellar dust
Tom Into, Laura Portinari
Colour-M/L (mass-to-light) relations are a popular recipe to derive stellar mass in external galaxies. Stellar mass estimates often rely on near infrared (NIR) photometry, consider…
New solar twins and the metallicity and temperature scales of the Geneva Copenhagen Survey
Juliet Datson, Chris Flynn, Laura Portinari
We search for "solar twins" in the Geneva-Copenhagen Survey (GCS) using high resolution optical spectroscopy. We initially select Sun-like stars from the GCS by absolute magnitude,…