Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Bertolami, Marcelo M. Miller"'
Autor:
De Gerónimo, Francisco C., Bertolami, Marcelo M. Miller, Battich, Tiara, Tang, Xiaodong, Catelan, Márcio, Córsico, Alejandro H., Li, Yunjun, Fang, Xiao, Althaus, Leandro G.
Recent determinations of the total rate of the 12C+12C nuclear reaction show non-negligible differences with the reference reaction rate commonly used in previous stellar simulations. In addition, the current uncertainties in determining each exit ch
Externí odkaz:
http://arxiv.org/abs/2409.10793
Publikováno v:
Journal of Cosmology and Astroparticle Physics, Volume 2024, October 2024
Among the open problems in fundamental physics, few are as conceptually significant as the measurement problem in Quantum Mechanics. One of the proposed solutions to this problem is the Continuous Spontaneous Localization (CSL) model, which introduce
Externí odkaz:
http://arxiv.org/abs/2406.04463
Autor:
Venturini, Julia, Ronco, María Paula, Guilera, Octavio M., Haldemann, Jonas, Mordasini, Christoph, Bertolami, Marcelo M. Miller
Publikováno v:
A&A 686, L9 (2024)
The radius valley separating super-Earths from mini-Neptunes is a fundamental benchmark for theories of planet formation and evolution. Observations show that the location of the radius valley decreases with decreasing stellar mass and with increasin
Externí odkaz:
http://arxiv.org/abs/2404.01967
Autor:
Ronco, María Paula, Schreiber, Matthias R., Villaver, Eva, Guilera, Octavio M., Bertolami, Marcelo M. Miller
The study of protoplanetary disc evolution and planet formation has mainly concentrated on solar (and low) mass stars since they host the majority of the confirmed exoplanets. Nevertheless, the numerous planets found orbiting stars up to $\sim3M_\odo
Externí odkaz:
http://arxiv.org/abs/2311.03934
Disk solids are critical in many planet formation processes, however, their effect on planet migration remains largely unexplored. Here we assess for the first time this important issue by building on the systematic measurements of dust torques on an
Externí odkaz:
http://arxiv.org/abs/2305.02140
Autor:
Bertolami, Marcelo M. Miller
The Red-Giant Branch Bump (RGBB) is one of the most noteworthy features in the red-giant luminosity function of stellar clusters. It is caused by the passage of the hydrogen-burning shell through the composition discontinuity left at the point of the
Externí odkaz:
http://arxiv.org/abs/2212.08042
Autor:
Bertolami, Marcelo M. Miller
Publikováno v:
2022 ApJ 941 149
In spite of the spectacular progress accomplished by stellar evolution theory some simple questions remain unanswered. One of these questions is ``Why do stars become Red Giants?''. Here we present a relatively simple analytical answer to this questi
Externí odkaz:
http://arxiv.org/abs/2210.07005
Autor:
Bertolami, Marcelo M. Miller, Battich, Tiara, Córsico, Alejandro H., Althaus, Leandro G., Wachlin, Felipe C.
Recently a new class of hot subluminous stars strongly enriched in C and O have been discovered (CO-sdOs). These stars show abundances very similar to those observed in PG1159 stars but at lower temperatures. Moreover, it has been recently suggested
Externí odkaz:
http://arxiv.org/abs/2202.05635
Publikováno v:
A&A 659, A150 (2022)
Recent computations of the interior composition of ultra-massive white dwarfs (WD) have suggested that some white dwarfs could be composed of neon (Ne)-dominated cores. This result is at variance with our previous understanding of the chemical struct
Externí odkaz:
http://arxiv.org/abs/2201.08696
Autor:
Ronco, María Paula, Guilera, Octavio M., Cuadra, Jorge, Bertolami, Marcelo M. Miller, Cuello, Nicolás, Fontecilla, Camilo, Poblete, Pedro, Bayo, Amelia
The gas dissipation from a protoplanetary disk is one of the key processes affecting planet formation, and it is widely accepted that it happens on timescales of a few million years for disks around single stars. Over the last years, several protopla
Externí odkaz:
http://arxiv.org/abs/2105.09410