Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Camisassa María E."'
Autor:
Rebassa-Mansergas, Alberto, Hollands, Mark, Parsons, Steven G., Althaus, Leandro G., Pelisoli, Ingrid, Irawati, Puji, Raddi, Roberto, Camisassa, Maria E., Torres, Santiago
Publikováno v:
A&A 686, A221 (2024)
Ultra-short period compact binaries are important sources of gravitational waves, which include e.g. the progenitors of type Ia supernovae or the progenitors of merger episodes that may lead to massive and magnetic single white dwarfs. J0526+5934 is
Externí odkaz:
http://arxiv.org/abs/2402.04443
Autor:
Werner, Klaus, Reindl, Nicole, Raddi, Roberto, Griggio, Massimo, Bedin, Luigi R., Camisassa, María E., Rebassa-Mansergas, Alberto, Torres, Santiago, Goodhew, Peter
Publikováno v:
A&A 678, A89 (2023)
Planetary nebulae in Galactic open star clusters are rare objects; only three are known to date. They are of particular interest because their distance can be determined with high accuracy, allowing one to characterize the physical properties of the
Externí odkaz:
http://arxiv.org/abs/2309.10693
Autor:
Fuentes, J. R., Hindman, Bradley W., Zhao, Junwei, Blume, Catherine C., Camisassa, Maria E., Featherstone, Nicholas A., Hartlep, Thomas, Korre, Lydia, Matilsky, Loren I.
Meridional circulation regulates the Sun's interior dynamics and magnetism. While it is well accepted that meridional flows are poleward at the Sun's surface, helioseismic observations have yet to provide a definitive answer for the depth at which th
Externí odkaz:
http://arxiv.org/abs/2308.07513
Autor:
Córsico, Alejandro H., Boston, S. Reece, Althaus, Leandro G., Kilic, Mukremin, Kepler, S. O., Camisassa, María E., Torres, Santiago
Ultra-massive white dwarf stars are currently being discovered at a considerable rate, thanks to surveys such as the {\it Gaia} space mission. These dense and compact stellar remnants likely play a major role in type Ia supernova explosions. It is po
Externí odkaz:
http://arxiv.org/abs/2307.11834
Autor:
Althaus, Leandro G., Córsico, Alejandro H., Camisassa, María E., Torres, Santiago, Gil-Pons, Pilar, Rebassa-Mansergas, Alberto, Raddi, Roberto
We employ the La Plata stellar evolution code, LPCODE, to compute the first set of constant rest-mass carbon-oxygen ultra-massive white dwarf evolutionary sequences for masses higher than 1.29 Msun that fully take into account the effects of general
Externí odkaz:
http://arxiv.org/abs/2306.05251
Ultra-massive H-rich (DA spectral type) white dwarf stars ($M_{\star} > 1.05 M_{\odot}$) are expected to be substantially crystallized by the time they reach the ZZ Ceti instability strip ($T_{\rm eff} \sim 12\,000$ K). Crystallization leads to a sep
Externí odkaz:
http://arxiv.org/abs/2302.04100
The solar convection zone rotates differentially, with its equatorial region rotating more rapidly than the polar regions. This form of differential rotation, also observed in many other low-mass stars, is understood to arise when Coriolis effects ar
Externí odkaz:
http://arxiv.org/abs/2208.05591
Autor:
Camisassa, Maria E., Raddi, Roberto, Althaus, Leandro G., Isern, Jordi, Rebassa-Mansergas, Alberto, Torres, Santiago, Corsico, Alejandro H., Korre, Lydia
Ultra-massive white dwarfs ($ 1.05 \rm M_\odot \lesssim M_{WD}$) are particularly interesting objects that allow us to study extreme astrophysical phenomena such as type Ia supernovae explosions and merger events. Traditionally, ultra-massive white d
Externí odkaz:
http://arxiv.org/abs/2207.07275
Autor:
Calcaferro Leila M., Córsico Alejandro H., Camisassa María E., Althaus Leandro G., Shibahashi Hiromoto
Publikováno v:
EPJ Web of Conferences, Vol 152, p 06012 (2017)
We present a pulsational stability analysis on high-luminosity H-rich (DA) white dwarf models evolved from low-metallicity progenitors. We found that the ε mechanism due to H-shell burning is able to excite low-order g modes.
Externí odkaz:
https://doaj.org/article/421a6d87ae724e2a8b5d8b39650b5a00
Autor:
Camisassa, María E., Althaus, Leandro G., Koester, Detlev, Torres, Santiago, Pons, Pilar Gil, Córsico, Alejandro H.
Ultra-massive white dwarfs ($\rm M_{WD} \gtrsim 1.05\, M_{\odot}$) are considered powerful tools to study type Ia supernovae explosions, merger events, the occurrence of physical processes in the Super Asymptotic Giant Branch (SAGB) phase, and the ex
Externí odkaz:
http://arxiv.org/abs/2202.03495