509 citations · 4.3k across the 61 of their papers we have counts for
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Analysis of the fraction of clear sky at the La Palma and Mt Graham sites
A. della Valle, Y. Maruccia, S. Ortolani +1
The fraction of available telescope time is one of the most important requirements for selecting astronomical sites affecting the performance of ground based telescopes. A quantita…
Open cluster survival within the solar circle: Teutsch145 and Teutsch146
Charles Bonatto, Sergio Ortolani, Beatriz Barbuy +1
Teutsch145 and Teutsch146 are shown to be open clusters (OCs) orbiting well inside the Solar circle, a region where several dynamical processes combine to disrupt most OCs on a tim…
The astroclimatological comparison of the Paranal Observatory and El Roque de Los Muchachos Observatory
Gianluca Lombardi, Valentina Zitelli, Sergio Ortolani
The new extremely large telescope projects need accurate evaluation of the candidate sites. In this paper we present the astroclimatological comparison between the Paranal Observat…
On the various origins of close-in extrasolar planets
S. Marchi, S. Ortolani, M. Nagasawa +1
The extrasolar planets (EPs) so far detected are very different to the planets in our own Solar System. Many of them have Jupiter-like masses and close-in orbits (the so-called hot…