Search Results - "Jarvinen, S."

Rotation, activity, and lithium abundance in cool binary stars by Strassmeier, K. G., Weber, M., Granzer, T., Järvinen, S.

“…We have used two robotic telescopes to obtain time‐series high‐resolution optical echelle spectroscopy and VI and/or by photometry for a sample of 60 active…”
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Magnetic field measurements of sharp-lined Ap stars by Järvinen, S P, Hubrig, S, Jayaraman, R, Ilyin, I, Schöller, M

“…ABSTRACT Previous observations suggested that Ap and Bp stars exhibit a bimodal distribution of surface magnetic field strengths and that actually only few or…”
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The use of patient specific polyetheretherketone implants for reconstruction of maxillofacial deformities by Järvinen, S., Suojanen, J., Kormi, E., Wilkman, T., Kiukkonen, A., Leikola, J., Stoor, P.

“…The aim of this study was to evaluate polyetheretherketone (PEEK) as a patient-specific implant (PSI) material in maxillofacial reconstructive surgery. The…”
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Are magnetic fields universal in O-type multiple systems? by Hubrig, S, Järvinen, S P, Ilyin, I, Schöller, M, Jayaraman, R

“…ABSTRACT Although significant progress has been achieved in recent surveys of the magnetism in massive stars, the origin of the detected magnetic fields…”
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The anomalous atmospheric structure of the strongly magnetic Ap star HD 166473 by Järvinen, S P, Hubrig, S, Mathys, G, Khalack, V, Ilyin, I, Adigozalzade, H

“…ABSTRACT High-resolution spectropolarimetric observations of the strongly magnetic, superslowly rotating rapidly oscillating Ap star HD 166473 are used to…”
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The search for magnetic fields in two Wolf–Rayet stars and the discovery of a variable magnetic field in WR 55 by Hubrig, S, Schöller, M, Cikota, A, Järvinen, S P

“…ABSTRACT Magnetic fields in Wolf–Rayet (WR) stars are not well explored, although there is indirect evidence, e.g. from spectral variability and X-ray…”
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The very slow rotation of the magnetic O9.7 V star HD 54879 by Hubrig, S, Järvinen, S P, Schöller, M, Hummel, C A

“…ABSTRACT The first FOcal Reducer low dispersion Spectrograph (FORS 2) spectropolarimetric observation of the longitudinal magnetic field of HD 54879 of the…”
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Are magnetic fields universal in O-type multiple systems? by Hubrig, S, Jarvinen, S. P, Ilyin, I, Schöller, M, Jayaraman, R

“…Although significant progress has been achieved in recent surveys of the magnetism in massive stars, the origin of the detected magnetic fields remains to be…”
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Searching for magnetic fields in pulsating A-type stars: the discovery of a strong field in the probable δ Sct star HD 340577 and a null result for the γ Dor star HR 8799 by Hubrig, S, Järvinen, S P, Alvarado-Gómez, J D, Ilyin, I, Schöller, M

“…ABSTRACT Numerous δ Sct and γ Dor pulsators are identified in the region of the Hertzsprung–Russell diagram that is occupied by chemically peculiar magnetic Ap…”
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The rapidly oscillating Ap star γ Equ: linear polarization as an enhanced pulsation diagnostic? by Hubrig, S, Järvinen, S P, Ilyin, I, Strassmeier, K G, Schöller, M

“…ABSTRACT We present the first short time-scale observations of the rapidly oscillating Ap (roAp) star γ Equ in linear polarized light obtained with the Potsdam…”
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The magnetic, spectroscopic, and photometric variability of the Wolf–Rayet star WR 55 by Järvinen, S P, Hubrig, S, Jayaraman, R, Cikota, A, Schöller, M

“…ABSTRACT Studies of magnetic fields in the most evolved massive stars, the Wolf–Rayet stars, are of special importance because they are progenitors of certain…”
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Searching for magnetic fields in pulsating A-type stars: the discovery of a strong field in the probable delta Sct star HD340577 and a null result for the gamma Dor star HR8799 by Hubrig, S, Jarvinen, S. P, Alvarado-Gomez, J. D, Ilyin, I, Schöller, M

“…Numerous delta Sct and gamma Dor pulsators are identified in the region of the Hertzsprung-Russell diagram that is occupied by chemically peculiar magnetic Ap…”
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Detection of anomalous element distribution in the extremely slowly rotating magnetic O9.7 V star HD 54879 by Järvinen, S P, Hubrig, S, Schöller, M, Cikota, A, Ilyin, I, Hummel, C A, Küker, M

“…ABSTRACT The O9.7 V star HD 54879 is currently the only massive magnetic star whose magnetic field geometry and rotation period are not constrained. Over the…”
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Detection of weak magnetic fields in two HgMn stars by Hubrig, S, Järvinen, S P, Korhonen, H, Ilyin, I, Schöller, M, Niemczura, E, Chojnowski, S D

“…ABSTRACT The main-sequence mercury–manganese (HgMn) stars are known to exhibit large overabundances of exotic elements and, similar to magnetic Ap/Bp stars,…”
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New evidence for weak magnetic fields in Herbig Ae/Be stars by Järvinen, S P, Carroll, T A, Hubrig, S, Ilyin, I, Schöller, M

“…Abstract In recent years Herbig Ae/Be stars receive considerable attention as their disks are believed to be the sites of on-going planet formation. Confirming…”
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Magnetic and pulsational variability of Przybylski’s star (HD 101065) by Hubrig, S, Järvinen, S P, Madej, J, Bychkov, V D, Ilyin, I, Schöller, M, Bychkova, L V

“…Abstract Since its discovery more than half a century ago Przybylski’s star (HD 101065) continues to excite the astronomical community by the unusual nature of…”
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Characterizing the dynamical magnetosphere of the extremely slowly rotating magnetic O9.7 V star HD 54879 using rotational modulation of the Hα profile by Küker, Manfred, Järvinen, S. P., Hubrig, S., Ilyin, Ilya, Schöller, M.

“…The magnetic field in the O9.7 V star HD 54879 has been monitored for almost a decade. Spectropolarimetric observations reveal a rather strong mean…”
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The magnetic field of the stripped primary in the upsilon Sgr system, a member of the rare class of hydrogen-deficient binaries by Hubrig, S, Jarvinen, S. P, Ilyin, I, Schöller, M

“…We present the results of high-resolution spectropolarimetric observations of the optically dominant component in the rare hydrogen-deficient binary system…”
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Magnetic field geometry and magnetospheric environment of the strongly magnetic Of?p star NGC 1624-2 by Järvinen, S P, Hubrig, S, Schöller, M, Küker, M, Ilyin, I, Chojnowski, S D

“…ABSTRACT NGC 1624-2 is an O7f?p star with a reported probable polar magnetic field strength ≥20 kG, which is the strongest magnetic field ever measured in an…”
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Stellar activity as noise in exoplanet detection – I. Methods and application to solar-like stars and activity cycles by Korhonen, H., Andersen, J. M., Piskunov, N., Hackman, T., Juncher, D., Järvinen, S. P., Jørgensen, U. G.

“…The detection of exoplanets using any method is prone to confusion due to the intrinsic variability of the host star. We investigate the effect of cool…”
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