Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Michaela Kraus"'
Autor:
Dieter H. Nickeler, Michaela Kraus
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 131 (2024)
Structures in circumstellar matter reflect both fast processes and quasi-equilibrium states. A geometrical diversity of emitting circumstellar matter is observed around evolved massive stars, in particular around B[e] supergiants. We recapitulate cla
Externí odkaz:
https://doaj.org/article/973fe8cab0c9470182af20d95f5d6cad
Autor:
Julieta Paz Sánchez Arias, Péter Németh, Elisson Saldanha da Gama de Almeida, Matias Agustin Ruiz Diaz, Michaela Kraus, Maximiliano Haucke
Publikováno v:
Galaxies, Vol 11, Iss 5, p 93 (2023)
We aim to combine asteroseismology, spectroscopy, and evolutionary models to establish a comprehensive picture of the evolution of Galactic blue supergiant stars (BSG). To start such an investigation, we selected three BSG candidates for our analysis
Externí odkaz:
https://doaj.org/article/970cfe08afa14f8e81ad017d481be524
Autor:
Paula Esther Marchiano, María Laura Arias, Michaela Kraus, Michalis Kourniotis, Andrea Fabiana Torres, Lydia Sonia Cidale, Marcelo Borges Fernandes
Publikováno v:
Galaxies, Vol 11, Iss 4, p 80 (2023)
Symbiotic stars are interacting binary systems composed of an evolved star (generally a late-type red giant) and a degenerate or dwarf companion in orbit close enough for mass transfer to occur. Understanding the status of the late-type star is impor
Externí odkaz:
https://doaj.org/article/38d0e648f00e47ad83183065fc2b836a
Autor:
Andrea Fabiana Torres, María Laura Arias, Michaela Kraus, Lorena Verónica Mercanti, Tõnis Eenmäe
Publikováno v:
Galaxies, Vol 11, Iss 3, p 72 (2023)
The B[e] phenomenon is manifested by a heterogeneous group of stars surrounded by gaseous and dusty circumstellar envelopes with similar physical conditions. Among these stars, the FS CMa-type objects are suspected to be binary systems, which could b
Externí odkaz:
https://doaj.org/article/3e80fd06fc9e4ab7bd3417df5e590753
Publikováno v:
Galaxies, Vol 11, Iss 3, p 76 (2023)
Massive stars expel large amounts of mass during their late evolutionary phases. We aim to unveil the physical conditions within the warm molecular environments of B[e] supergiants (B[e]SGs) and yellow hypergiants (YHGs), which are known to be embedd
Externí odkaz:
https://doaj.org/article/dec091d0e4e74470b0a4093f95551293
Publikováno v:
Galaxies, Vol 11, Iss 3, p 64 (2023)
Z Canis Majoris is a fascinating early-type binary with a Herbig Be primary and a FU Orionis-type secondary. Both of the stars exhibit sub-arcsecond jet-like ejecta. In addition, the primary is associated with the extended jet as well as with the lar
Externí odkaz:
https://doaj.org/article/1083cbe9d2504217b0129b9c9f32373e
Autor:
Tiina Liimets, Michaela Kraus, Alexei Moiseev, Nicolas Duronea, Lydia Sonia Cidale, Cecilia Fariña
Publikováno v:
Galaxies, Vol 10, Iss 2, p 41 (2022)
B[e] stars are massive B type emission line stars in different evolutionary stages ranging from pre-main sequence to post-main sequence. Due to their mass loss and ejection events these objects deposit huge amounts of mass and energy into their envir
Externí odkaz:
https://doaj.org/article/2b6994eab118496b806588f56407a9ce
Autor:
Michaela Kraus
Publikováno v:
Galaxies, Vol 7, Iss 4, p 83 (2019)
Stellar evolution theory is most uncertain for massive stars. For reliable predictions of the evolution of massive stars and their final fate, solid constraints on the physical parameters, and their changes along the evolution and in different enviro
Externí odkaz:
https://doaj.org/article/e865838b9814489ea1c69132a654360b
Autor:
Marieangela C Wilson, Michaela Kraus, Hassan Marzban, Justyna R Sarna, Yisong Wang, Richard Hawkes, Andrew P Halestrap, Philip W Beesley
Publikováno v:
PLoS ONE, Vol 8, Iss 11, p e78654 (2013)
BackgroundThe neuroplastins np65 and np55 are two synapse-enriched immunoglobulin (Ig) superfamily adhesion molecules that contain 3 and 2 Ig domains respectively. Np65 is implicated in long term, activity dependent synaptic plasticity, including LTP
Externí odkaz:
https://doaj.org/article/8a5402d4e7c34a948fae30f7768bd5d5
Autor:
Fernandes, Paula Esther Marchiano, María Laura Arias, Michaela Kraus, Michalis Kourniotis, Andrea Fabiana Torres, Lydia Sonia Cidale, Marcelo Borges
Publikováno v:
Galaxies; Volume 11; Issue 4; Pages: 80
Symbiotic stars are interacting binary systems composed of an evolved star (generally a late-type red giant) and a degenerate or dwarf companion in orbit close enough for mass transfer to occur. Understanding the status of the late-type star is impor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::a3e8cec05d2062f328d47fd83f627040