Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Klement Róbert"'
Autor:
Prnová Anna, Valúchová Jana, Parchovianský Milan, Švančárek Peter, Šimko František, Rakhmatullin Aydar, Pálková Helena, Branislav Hruška, Klement Róbert, Galusek Dušan
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 2333-2351 (2023)
Five compositions in the system Al2O3–Y2O3 with high level of homogeneity were prepared in the form of glass microspheres by flame synthesis. The amorphous nature of prepared glasses with highly disordered structure was confirmed by X-ray diffracti
Externí odkaz:
https://doaj.org/article/f31f3fb35eb6498baedee219c18424e3
Autor:
Rivinius, Thomas, Klement, Robert
Classical Be stars, the "e" standing for the presence of spectroscopic line emission, are main sequence stars of spectral type B that are able to form a gaseous disk in Keplerian motion from star-ejected matter. The main driver of this capability is
Externí odkaz:
http://arxiv.org/abs/2411.06882
Autor:
Torres, Guillermo, Schaefer, Gail H., Stefanik, Robert P., Latham, David W., Boden, Andrew F., Anugu, Narsireddy, Jones, Jeremy W., Klement, Robert, Kraus, Stefan, Lanthermann, Cyprien, Monnier, John D.
We report long baseline interferometric observations with the CHARA Array that resolve six previously known double-lined spectroscopic binary systems in the Hyades cluster, with orbital periods ranging from 3 to 358 days: HD 27483, HD 283882, HD 2687
Externí odkaz:
http://arxiv.org/abs/2406.01674
Autor:
Klement, Robert, Rivinius, Thomas, Gies, Douglas R., Baade, Dietrich, Merand, Antoine, Monnier, John D., Schaefer, Gail H., Lanthermann, Cyprien, Anugu, Narsireddy, Kraus, Stefan, Gardner, Tyler
Rapid rotation and nonradial pulsations enable Be stars to build decretion disks, where the characteristic line emission forms. A major but unconstrained fraction of Be stars owe their rapid rotation to mass and angular-momentum transfer in a binary.
Externí odkaz:
http://arxiv.org/abs/2312.08252
Autor:
Anugu, Narsireddy, Kluska, Jacques, Gardner, Tyler, Monnier, John D., Van Winckel, Hans, Schaefer, Gail H., Kraus, Stefan, Bouquin, Jean-Baptiste Le, Ertel, Steve, Mérand, Antoine, Klement, Robert, Davies, Claire L, Ennis, Jacob, Labdon, Aaron, Lanthermann, Cyprien, Setterholm, Benjamin R., Brummelaar, Theo ten, Corporaal, Akke, Sabin, Laurence, Rajagopal, Jayadev
Some evolved binaries, namely post-asymptotic giant branch binaries, are surrounded by stable and massive circumbinary disks similar to protoplanetary disks found around young stars. Around 10% of these disks are transition disks: they have a large i
Externí odkaz:
http://arxiv.org/abs/2305.02408
Autor:
Lam, Rex, Sandquist, Eric L., Schaefer, Gail H., Farrington, Christopher D., Monnier, John D., Anugu, Narsireddy, Lanthermann, Cyprien, Klement, Robert, Ennis, Jacob, Setterholm, Benjamin R., Gardner, Tyler, Kraus, Stefan, Davies, Claire L., Orosz, Jerome A.
We present measurements of the interferometrically-resolved binary star system 12 Com and the single giant star 31 Com in the cluster Coma Berenices. 12 Com is a double-lined spectroscopic binary system consisting of a G7 giant and an A3 dwarf at the
Externí odkaz:
http://arxiv.org/abs/2304.07397
The origin of the bright and hard X-ray emission flux among the gamma Cas subgroup of B-emission line (Be) stars may be caused by gas accretion onto an orbiting white dwarf (WD) companion. Such Be+WD binaries are the predicted outcome of a second sta
Externí odkaz:
http://arxiv.org/abs/2212.06916
Autor:
Torres, Guillermo, Schaefer, Gail H., Monnier, John D., Anugu, Narsireddy, Davies, Claire L., Ennis, Jacob, Farrington, Christopher D., Gardner, Tyler, Klement, Robert, Kraus, Stefan, Labdon, Aaron, Lanthermann, Cyprien, Bouquin, Jean-Baptiste Le, Setterholm, Benjamin R., Brummelaar, Theo ten
Castor is a system of six stars in which the two brighter objects, Castor A and B, revolve around each other every $\sim$450 yr and are both short-period spectroscopic binaries. They are attended by the more distant Castor C, which is also a binary.
Externí odkaz:
http://arxiv.org/abs/2210.16322
Autor:
Morales, Leslie M., Sandquist, Eric L., Schaefer, Gail H., Farrington, Christopher D., Klement, Robert, Bedin, Luigi R., Libralato, Mattia, Malavolta, Luca, Nardiello, Domenico, Orosz, Jerome A., Monnier, John D., Kraus, Stefan, Bouquin, Jean-Baptiste Le, Anugu, Narsireddy, Brummelaar, Theo Ten, Davies, Claire L., Ennis, Jacob, Gardner, Tyler, Lanthermann, Cyprien
We observe the brightest member of the Praesepe cluster, Epsilon Cancri, to precisely measure the characteristics of the stars in this binary system, en route to a new measurement of the cluster's age. We present spectroscopic radial velocity measure
Externí odkaz:
http://arxiv.org/abs/2205.10690
Autor:
Matejdes, Marián, Škorňa, Peter, Slaný, Michal, Klement, Róbert, Bujdák, Juraj, Kawamata, Jun, Breu, Josef
Publikováno v:
In Materials Today Chemistry December 2024 42