Zobrazeno 1 - 10
of 167
pro vyhledávání: '"Leandro Gabriel Althaus"'
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
Externí odkaz:
https://doaj.org/article/30d1c790a9914a05bbf661df63d8acb0
Autor:
Enrique Solano, Leandro Gabriel Althaus, F. M. Jiménez-Esteban, A Ferrer-Burjachs, Santiago Torres, Alberto Rebassa-Mansergas, Alejandro H. Córsico, Leila M. Calcaferro, Carlos Rodrigo
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Monthly Notices of the Royal Astronomical Society
Digital.CSIC. Repositorio Institucional del CSIC
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Monthly Notices of the Royal Astronomical Society
Digital.CSIC. Repositorio Institucional del CSIC
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
We use the data provided by the Gaia Early Data Release 3 to search for a highly complete volume-limited sample of unresolved binaries consisting of a white dwarf and a main-sequence companion (i.e. WDMS binaries) within 100 pc. We select 112 objects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffb72236ca4c33b86acd0094d51f5d6f
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stab2039/6322850
https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stab2039/6322850
Publikováno v:
Proceedings of the International Astronomical Union. 15:110-113
Ultra-massive (⩾M⊙) oxygen/neon (ONe) core white dwarfs (WDs) are the result of the evolution of isolated progenitor stars with masses above 6−M⊙. It is expected that hydrogen-rich (DA) ultra-massive WDs harbor crystallized cores at the typic
Autor:
Maja Vučković, G. O. da Rosa, M. Uzundag, Keaton J. Bell, A. H. Córsico, Souza Oliveira Kepler, N. Reindl, Alina G. Istrate, Michael Higgins, Leandro Gabriel Althaus, Klaus Werner
Publikováno v:
Astronomy & Astrophysics, 655, 1-12
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Astronomy & Astrophysics, 655, pp. 1-12
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Astronomy & Astrophysics, 655, pp. 1-12
Context. The Transiting Exoplanet Survey Satellite (TESS) mission is revolutionizing the blossoming area of asteroseismology, particularly of pulsating white dwarfs and pre-white dwarfs, thus continuing the impulse of its predecessor, the Kepler miss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d280c027d92cda65f9b6e66ce7e71c40
http://hdl.handle.net/2066/239752
http://hdl.handle.net/2066/239752
Autor:
Pier-Emmanuel Tremblay, Sihao Cheng, Santiago Torres, María E. Camisassa, Roberto Raddi, Leandro Gabriel Althaus, Alberto Rebassa-Mansergas, Alejandro H. Córsico
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Digital.CSIC. Repositorio Institucional del CSIC
instname
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Universitat Politècnica de Catalunya (UPC)
Digital.CSIC. Repositorio Institucional del CSIC
instname
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
White dwarf stars are the most common end point of stellar evolution. Of special interest are the ultramassive white dwarfs, as they are related to type Ia Supernovae explosions, merger events, and Fast Radio Bursts. Ultramassive white dwarfs are exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::965db42809fbe4113d1dcb918261466e
Autor:
Francesco R. Ferraro, M. Cadelano, Leandro Gabriel Althaus, Barbara Lanzoni, Emanuele Dalessandro, Jianxing Chen, Maurizio Salaris, C. Pallanca
White dwarfs (WDs) are the final evolutionary product of the vast majority of stars in the Universe. They are electron-degenerate structures characterized by no stable thermonuclear activity, and their evolution is generally described as a pure cooli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fc33920c08882f2c0be27f0247d19c4
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 492 (2), pp.1579-1593. ⟨10.1093/mnras/stz3438⟩
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2020, 492 (2), pp.1579-1593. ⟨10.1093/mnras/stz3438⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 492 (2), pp.1579-1593. ⟨10.1093/mnras/stz3438⟩
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2020, 492 (2), pp.1579-1593. ⟨10.1093/mnras/stz3438⟩
Binary systems composed of a recycled millisecond pulsar and a stellar companion in close orbit could be excellent sites to diagnose pulsar winds. In such systems, the pulsar outflow irradiates and heats up the companion atmosphere, which can lead to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cda00a940771e786cd2cf38b5d91e56e
https://hal.archives-ouvertes.fr/hal-02458713
https://hal.archives-ouvertes.fr/hal-02458713
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
[Context] Ultra-massive white dwarfs are relevant for many reasons: Their role as type Ia supernova progenitors, the occurrence of physical processes in the asymptotic giant branch phase, the existence of high-field magnetic white dwarfs, and the occ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e321b9967948d88ea36ee4cb8c33217
Autor:
M. M. Miller Bertolami, Alejandro H. Córsico, Tiara Battich, Jørgen Christensen-Dalsgaard, Leandro Gabriel Althaus
Publikováno v:
Miller Bertolami, M M, Battich, T, Córsico, A H, Christensen-Dalsgaard, J & Althaus, L G 2020, ' Asteroseismic signatures of the helium core flash ', Nature Astronomy, vol. 4, no. 1, pp. 67-71 . https://doi.org/10.1038/s41550-019-0890-0
All evolved stars with masses $M_\star\lesssim 2M_\odot$ undergo a helium(He)-core flash at the end of their first stage as a giant star. Although theoretically predicted more than 50 years ago, this core-flash phase has yet to be observationally pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be90e62b6e54d58f9f698a59cf6fa446
https://pure.au.dk/portal/da/publications/asteroseismic-signatures-of-the-helium-core-flash(2e08a368-3cee-466e-a43a-9c60fca99cda).html
https://pure.au.dk/portal/da/publications/asteroseismic-signatures-of-the-helium-core-flash(2e08a368-3cee-466e-a43a-9c60fca99cda).html
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
Context. Two of the possible channels for the formation of low-mass (M⋆ ≲ 0.5 M⊙) hydrogen-deficient white dwarfs are the occurrence of a very-late thermal pulse after the asymptotic giant-branch phase or a late helium-flash onset in an almost
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf1f51aeaaca4495c14e9ae3c790f113
http://sedici.unlp.edu.ar/handle/10915/123742
http://sedici.unlp.edu.ar/handle/10915/123742