Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Schröder, Klaus-Peter"'
Autor:
Jack, Dennis, Huerta, Missael Alejandro Hernández, Rosas-Portilla, Faiber Danilo, Schröder, Klaus-Peter
We present an analysis of nine bright spectroscopic binaries (HD 1585, HD 6613, HD 12390, HD 39923, HD 55201, HD 147430, HD 195543, HD 202699, HD 221643), which have orbital periods of P > 500 days. These well-separated binaries are the last stars of
Externí odkaz:
http://arxiv.org/abs/2312.02866
Autor:
Jack, Dennis, Huerta, Missael Alejandro Hernández, Rosas-Portilla, Faiber Danilo, Schröder, Klaus-Peter
We present a detailed analysis of five bright spectroscopic binary systems (HD 18665, HD 27131, HD 171852, HD 215550, HD 217427) that have orbital periods of P < 500 days. We determined the complete set of orbital parameters using the toolkit RadVel
Externí odkaz:
http://arxiv.org/abs/2201.04162
Autor:
Drimmel, Ronald, Sozzetti, Alessandro, Schroeder, Klaus-Peter, Bastian, Ulrich, Pinamonti, Matteo, Jack, Dennis, Huerta, Missael A. Hernandez
We present a spectroscopic characterisation and a new orbital solution for the binary system beta Cyg Aa/Ac (MCA 55), the primary component (beta Cyg A) of the well-known wide double star Albireo. By matching evolutionary tracks to the physical param
Externí odkaz:
http://arxiv.org/abs/2012.01277
In a well-aimed search based on the recently published Gaia~DR2 radial velocity data and performed with the robotic TIGRE telescope, we have discovered 19 bright ($m_V<7.66$~mag) spectroscopic binary stars. We present the radial velocity curves of fi
Externí odkaz:
http://arxiv.org/abs/2007.06386
Autor:
Jack, Dennis, Schröder, Klaus-Peter, Eenens, Philippe, Wolter, Uwe, González-Pérez, José Nicolás, Schmitt, Jürgen H. M. M., Hauschildt, Peter H.
With our robotic 1.2 m TIGRE telescope, we were able to obtain eight optical spectra with intermediate resolution (R = 20,000) of the Nova V659 Sct during different phases of its outburst. We present a list of the lines found in the Nova spectra. The
Externí odkaz:
http://arxiv.org/abs/2006.14052
Autor:
Schröder, Klaus-Peter, Mittag, Marco, Jack, Dennis, Jimenez, Abigali Rodriguez, Schmitt, Jürgen H. M. M.
We determine the exact physical parameters of the four Hyades cluster K giants, using their parallaxes and atmospheric modeling of our red-channel TIGRE high-resolution spectra. Performing a comparison with well-tested evolutionary tracks, we derive
Externí odkaz:
http://arxiv.org/abs/1912.03638
Autor:
Díaz, Santiago Arceo, Schröder, Klaus-Peter, Zuber, Kai, Jack, Dennis, Barrios, Elena Elsa Bricio
The current constraints in the neutrino magnetic dipole moment and axion-electron coupling constant ($\mathrm{\mu_{\nu}\leq2.2\times10^{-12}\mu_{B}}$ and $\mathrm{\alpha_{ae}\leq0.5\times10^{-26}}$) are tested against the observational calibration on
Externí odkaz:
http://arxiv.org/abs/1910.10568
Akademický článek
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Autor:
Schröder, Klaus-Peter1 (AUTHOR) kp.schroder@ugto.mx, Konstantinova-Antova, Renada2 (AUTHOR) kp.schroder@ugto.mx
Publikováno v:
Universe (2218-1997). Aug2022, Vol. 8 Issue 8, p411-411. 16p.
Red giants offer a good opportunity to study the interplay of magnetic fields and stellar evolution. Using the spectro-polarimeter NARVAL of the Telescope Bernard Lyot (TBL), Pic du Midi, France and the LSD technique, we began a survey of magnetic fi
Externí odkaz:
http://arxiv.org/abs/0901.1537