Vaduvescu, O.; Aznar Macias, A.; Wilson, T. G.; Zegmott, T.; Pérez Toledo, F. M.; Predatu, M.; Gherase, R.; Pinter, V.; Pozo Nunez, F.; Ulaczyk, K.; Soszyński, I.; Mróz, P.; Wrona, M.; Iwanek, P.; Szymanski, M.; Udalski, A.; Char, F.; Salas Olave, H.; Aravena-Rojas, G.; Vergara, A. C.; Saez, C.; Unda-Sanzana, E.; Alcalde, B.; de Burgos, A.; Nespral, D.; Galera-Rosillo, R.; Amos, N. J.; Hibbert, J.; López-Comazzi, A.; Oey, J.; Serra-Ricart, M.; Licandro, J.; Popescu, M.
This is the fourth data paper publishing lightcurve survey work of 52 Near Earth Asteroids (NEAs) using 10 telescopes available to the EURONEAR network between 2017 and 2020. Forty six targets were not observed before our runs (88% of the sample) but some of these were targeted during the same oppositions mainly by Brian Warner. We propose new periods for 20 targets (38% of the sample), confirming published data for 20 targets, while our results for 8 targets do not match published data. We secured periods for 15 targets (29% of the sample), candidate periods for 23 objects (44%), tentative periods for 11 asteroids (21%), and have derived basic information about 3 targets (6% of the sample). We calculated the lower limit of the ellipsoid shape ratios a/b for 46 NEAs (including 13 PHAs). We confirmed or suggested 4 binary objects, recommending two of them for follow-up during future dedicated campaigns.
Physical properties and evolution of Massive Stars
This project aims at the searching, observation and analysis of massive stars in nearby galaxies to provide a solid empirical ground to understand their physical properties as a function of those key parameters that gobern their evolution (i.e. mass, spin, metallicity, mass loss, and binary interaction). Massive stars are central objects to
Minor Bodies of the Solar System
This project studies the physical and compositional properties of the so-called minor bodies of the Solar System, that includes asteroids, icy objects, and comets. Of special interest are the trans-neptunian objects (TNOs), including those considered the most distant objects detected so far (Extreme-TNOs or ETNOs); the comets and the comet-asteroid