Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Reindl, N"'
Autor:
Geier, S., Heber, U., Irrgang, A., Dorsch, M., Bastian, A., Neunteufel, P., Kupfer, T., Bloemen, S., Kreuzer, S., Möller, L., Schindewolf, M., Schneider, D., Ziegerer, E., Pelisoli, I., Schaffenroth, V., Barlow, B. N., Raddi, R., Geier, S. J., Reindl, N., Rauch, T., Nemeth, P., Gänsicke, B. T.
Publikováno v:
A&A 690, A368 (2024)
Hot subdwarfs (sdO/B) are the stripped helium cores of red giants formed by binary interactions. Close hot subdwarf binaries with massive white dwarf companions have been proposed as possible progenitors of thermonuclear supernovae type Ia (SN Ia). I
Externí odkaz:
http://arxiv.org/abs/2407.04479
Autor:
Dawson, H., Geier, S., Heber, U., Pelisoli, I., Dorsch, M., Schaffenroth, V., Reindl, N., Culpan, R., Pritzkuleit, M., Vos, J., Soemitro, A. A., Roth, M. M., Schneider, D., Uzundag, M., Vučković, M., Amaral, L. Antunes, Istrate, A. G., Justham, S., Østensen, R. H., Telting, J. H., Djupvik, A. A., Raddi, R., Green, E. M., Jeffery, C. S., Kepler, S. O., Munday, J., Steinmetz, T., Kupfer, T.
We present the first volume-limited sample of spectroscopically confirmed hot subluminous stars out to 500 pc, defined using the accurate parallax measurements from the {\em Gaia} space mission data release 3 (DR3). The sample comprises a total of 39
Externí odkaz:
http://arxiv.org/abs/2403.15513
Autor:
Saracino, S., Kamann, S., Bastian, N., Gieles, M., Shenar, T., Reindl, N., Müller-Horn, J., Usher, C., Dreizler, S., Hénault-Brunet, V.
Studies of young clusters have shown that a large fraction of O-/early B-type stars are in binary systems, where the binary fraction increases with mass. These massive stars are present in clusters of a few Myrs, but gradually disappear for older clu
Externí odkaz:
http://arxiv.org/abs/2309.03333
Autor:
Griggio, M., Bedin, L. R., Raddi, R., Reindl, N., Tomasella, L., Scalco, M., Salaris, M., Cassisi, S., Ochner, P., Ciroi, S., Rosati, P., Nardiello, D., Anderson, J., Libralato, M., Bellini, A., Vallenari, A., Spina, L., Pedani, M.
We present an astrometric and photometric wide-field study of the Galactic open star cluster M37 (NGC 2099). The studied field was observed with ground-based images covering a region of about four square degrees in the Sloan-like filters ugi. We expl
Externí odkaz:
http://arxiv.org/abs/2207.03179
Publikováno v:
A&A 661, A113 (2022)
Hot subdwarf stars represent a late and peculiar stage in the evolution of low-mass stars, because they are likely formed by close binary interactions. Here we performed a radial velocity (RV) variability study of a sample of 646 hot subdwarfs with m
Externí odkaz:
http://arxiv.org/abs/2202.09608
Publikováno v:
A&A 658, L9 (2022)
Helium-rich hot subdwarf stars of spectral type O (He-sdO) are considered prime candidates for stellar merger remnants. Such events should lead to the generation of strong magnetic fields. However, no magnetic He-sdO has yet been unambiguously discov
Externí odkaz:
http://arxiv.org/abs/2201.08146
Autor:
Giammichele, N., Charpinet, S., Fontaine, G., Brassard, P., Bergeron, P., Reindl, N., Baran, A. S.
We present the results of the asteroseismic analysis of the hydrogen-deficient white dwarf PG 0112+104 from the $Kepler$-2 field. Our seismic procedure using the forward method based on physically sound, static models, includes the new core parameter
Externí odkaz:
http://arxiv.org/abs/2106.15701
Autor:
Hu, J., Webb, J. K., Ayres, T. R., Bainbridge, M. B., Barrow, J. D., Barstow, M. A., Berengut, J. C., Carswell, R. F., Dumont, V., Dzuba, V., Flambaum, V. V., Lee, C. C., Reindl, N., Preval, S. P., Tchang-Brillet, W. -Ü. L.
The gravitational potential phi = GM/Rc^2 at the surface of the white dwarf G191-B2B is 10,000 times stronger than that at the Earth's surface. Numerous photospheric absorption features are detected, making this a suitable environment to test theorie
Externí odkaz:
http://arxiv.org/abs/2007.10905
Autor:
Reindl, N., Schaffenroth, V., Bertolami, M. M. Miller, Geier, S., Finch, N. L., Barstow, M. A., Casewell, S. L., Taubenberger, S.
The nucleus of the planetary nebula Hen2-428 is a short orbital-period (4.2h), double-lined spectroscopic binary, whose status as a potential supernova type Ia progenitor has raised some controversy in the literature. With the aim of resolving this d
Externí odkaz:
http://arxiv.org/abs/2006.14688
Autor:
Preval, S. P., Barstow, M. A., Bainbridge, M., Reindl, N., Ayres, T., Holberg, J. B., Barrow, J. D., Lee, C. C., Webb, J. K., Hu, J.
Using newly obtained high-resolution data ($R\sim{1\times{10}^{5}}$) from the \textit{Hubble Space Telescope}, and archival UV data from the \textit{Far Ultraviolet Spectroscopic Explorer} we have conducted a detailed UV survey of the three hot, meta
Externí odkaz:
http://arxiv.org/abs/1905.12350