Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Kurucz, R. L."'
Autor:
Kostogryz, N. M., Witzke, V., Shapiro, A. I., Solanki, S. K., Maxted, P. F. L., Kurucz, R. L., Gizon, L.
Publikováno v:
A&A 666, A60 (2022)
The detection of the first exoplanet paved the way into the era of transit photometry space missions with a revolutionary photometric precision that aim at discovering new exoplanetary systems around different types of stars. With this high precision
Externí odkaz:
http://arxiv.org/abs/2206.06641
Autor:
Witzke, V., Shapiro, A. I., Cernetic, M., Tagirov, R. V., Kostogryz, N. M., Anusha, L. S., Unruh, Y. C., Solanki, S. K., Kurucz, R. L.
Publikováno v:
A&A 653, A65 (2021)
Context. Stellar spectral synthesis is essential for various applications, ranging from determining stellar parameters to comprehensive stellar variability calculations. New observational resources as well as advanced stellar atmosphere modelling, ta
Externí odkaz:
http://arxiv.org/abs/2105.13611
The helium-enriched (He-enriched) metal-rich red giants of Omega Centauri, discovered by Hema and Pandey using the low-resolution spectra from the Vainu Bappu Telescope (VBT) and confirmed by the analyses of the high-resolution spectra obtained from
Externí odkaz:
http://arxiv.org/abs/2005.06807
Realistic stellar atmospheric models of two typical metal-poor giant stars in Omega Centauri that include a chromosphere influence the formation of optical lines of Oxygen I: the forbidden lines (630nm, 636nm) and the infrared triplet (777.1-777.5 nm
Externí odkaz:
http://arxiv.org/abs/1603.07381
The NIST database lists several Mn II lines that were observed in the laboratory but not classified. They cannot be used in spectrum synthesis because their atomic line data are unknown. These lines are concentrated in the 2380-2700 A interval. We ai
Externí odkaz:
http://arxiv.org/abs/1504.07514
Autor:
Castelli, F., Kurucz, R. L.
The spectra of B-type and early A-type stars show numerous unidentified lines in the whole optical range, especially in the 5100 - 5400 A interval. Because Fe II transitions to high energy levels should be observed in this region, we used semiempiric
Externí odkaz:
http://arxiv.org/abs/1006.5606
We explore the biological damage initiated in the environments of F, G, K, and M-type main-sequence stars due to photospheric, chromospheric and flare radiation. The amount of chromospheric radiation is, in a statistical sense, directly coupled to th
Externí odkaz:
http://arxiv.org/abs/0911.1982
The analysis of the high-resolution UVES spectra of the CP stars HR 6000 and 46 Aql revealed the presence of an impressive number of unidentified lines, in particular in the 5000 - 5400 A region. Because numerous 4d-4f transitions of FeII lie in this
Externí odkaz:
http://arxiv.org/abs/0909.1936
Context. Cool star model atmospheres are a common tool for the investigation of stellar masses, ages and elemental abundance composition. Theoretical atmospheric models strongly depend on the atomic data used when calculating them. Aims. We present t
Externí odkaz:
http://arxiv.org/abs/0906.5449
We focus on the astrobiological effects of photospheric radiation produced by main-sequence stars of spectral types F, G, K, and M. The photospheric radiation is represented by using realistic spectra, taking into account millions or hundred of milli
Externí odkaz:
http://arxiv.org/abs/0712.3257