Zobrazeno 1 - 10
of 1 100
pro vyhledávání: '"Klement, R"'
Autor:
Rubio, A. C., Carciofi, A. C., Ticiani, P., Mota, B. C., Vieira, R. G., Faes, D. M., Genaro, M., de Amorim, T. H., Klement, R., Araya, I., Arcos, C., Curé, M., de Souza, A. Domiciano, Georgy, C., Jones, C. E., Suffak, M. W., Silva, A. C. F.
Classical Be stars are fast rotating, near main sequence B-type stars. The rotation and the presence of circumstellar discs profoundly modify the observables of active Be stars. Our goal is to infer stellar and disc parameters, as well as distance an
Externí odkaz:
http://arxiv.org/abs/2309.06168
Autor:
Klement, R., Baade, D., Rivinius, Th., Gies, D. R., Wang, L., Labadie-Bartz, J., Santos, P. Ticiani Dos, Monnier, J. D., Carciofi, A. C., Mérand, A., Anugu, N., Schaefer, G. H., Bouquin, J. -B. Le, Davies, C. L., Ennis, J., Gardner, T., Kraus, S., Setterholm, B. R., Labdon, A.
Because many classical Be stars may owe their nature to mass and angular-momentum transfer in a close binary, the present masses, temperatures, and radii of their components are of high interest for comparison to stellar evolution models. Kappa Dra i
Externí odkaz:
http://arxiv.org/abs/2210.03090
Autor:
Kervella, P., Borgniet, S., de Souza, A. Domiciano, Mérand, A., Gallenne, A., Rivinius, Th., Lacour, S., Carciofi, A., Faes, D. Moser, Bouquin, J. -B. Le, Taormina, M., Pilecki, B., Berger, J. -Ph., Bendjoya, Ph., Klement, R., Millour, F., Janot-Pacheco, E., Spang, A., Vakili, F.
Publikováno v:
A&A 667, A111 (2022)
Achernar, the closest and brightest classical Be star, presents rotational flattening, gravity darkening, occasional emission lines due to a gaseous disk, and an extended polar wind. It is also a member of a close binary system with an early A-type d
Externí odkaz:
http://arxiv.org/abs/2209.07537
MWC656 has been reported as classical Be star with a black hole companion. Revisited spectral variability properties render this unlikely, with a hot subdwarf more probable.
Comment: To be published in IAUS361 proceedings
Comment: To be published in IAUS361 proceedings
Externí odkaz:
http://arxiv.org/abs/2208.12315
Autor:
Caballero, J. A., Gonzalez-Alvarez, E., Brady, M., Trifonov, T., Ellis, T. G., Dorn, C., Cifuentes, C., Molaverdikhani, K., Bean, J. L., Boyajian, T., Rodriguez, E., Sanz-Forcada, J., Osorio, M. R. Zapatero, Abia, C., Amado, P. J., Anugu, N., Bejar, V. J. S., Davies, C. L., Dreizler, S., Dubois, F., Ennis, J., Espinoza, N., Farrington, C. D., Lopez, A. Garcia, Gardner, T., Hatzes, A. P., Henning, Th., Herrero, E., Herrero-Cisneros, E., Kaminski, A., Kasper, D., Klement, R., Kraus, S., Labdon, A., Lanthermann, C., Bouquin, J. -B. Le, Gonzalez, M. J. Lopez, Luque, R., Mann, A. W., Marfil, E., Monnier, J. D., Montes, D., Morales, J. C., Palle, E., Pedraz, S., Quirrenbach, A., Reffert, S., Reiners, A., Ribas, I., Rodriguez-Lopez, C., Schaefer, G., Schweitzer, A., Seifahrt, A., Setterholm, B. R., Shan, Y., Shulyak, D., Solano, E., Sreenivas, K. R., Stefansson, G., Stuermer, J., Tabernero, H. M., Tal-Or, L., Brummelaar, T. ten, Vanaverbeke, S., von Braun, K., Youngblood, A., Zechmeister, M.
Publikováno v:
A&A 665, A120 (2022)
The Gl 486 system consists of a very nearby, relatively bright, weakly active M3.5 V star at just 8 pc with a warm transiting rocky planet of about 1.3 R_Terra and 3.0 M_Terra that is ideal for both transmission and emission spectroscopy and for test
Externí odkaz:
http://arxiv.org/abs/2206.09990
Autor:
Frost, A. J., Bodensteiner, J., Rivinius, Th., Baade, D., Merand, A., Selman, F., Abdul-Masih, M., Banyard, G., Bordier, E., Dsilva, K., Hawcroft, C., Mahy, L., Reggiani, M., Shenar, T., Cabezas, M., Hadrava, P., Heida, M., Klement, R., Sana, H.
Publikováno v:
A&A, Volume 659, March 2022, L3, 12, Letters to the Editor
Two scenarios have been proposed to match the existing observational constraints of the object HR 6819. The system could consist of a close inner B-type giant plus a black hole (BH) binary with an additional Be companion in a wide orbit. Alternativel
Externí odkaz:
http://arxiv.org/abs/2203.01359
Autor:
Klement, R., Schaefer, G. H., Gies, D. R., Wang, L., Baade, D., Rivinius, Th., Gallenne, A., Carciofi, A. C., Monnier, J. D., Mérand, A., Anugu, N., Kraus, S., Davies, C. L., Lanthermann, C., Gardner, T., Wysocki, P., Ennis, J., Labdon, A., Setterholm, B. R., Bouquin, J. Le
Classical Be stars are possible products of close binary evolution, in which the mass donor becomes a hot, stripped O or B-type subdwarf (sdO/sdB), and the mass gainer spins up and grows a disk to become a Be star. While several Be+sdO binaries have
Externí odkaz:
http://arxiv.org/abs/2112.05073
Several dozen optical echelle spectra demonstrate that HR 6819 is a hierarchical triple. A classical Be star is in a wide orbit with an unconstrained period around an inner 40 d binary consisting of a B3 III star and an unseen companion in a circular
Externí odkaz:
http://arxiv.org/abs/2005.02541
Publikováno v:
In Ceramics International 15 December 2023 49(24) Part B:41201-41209
