Zobrazeno 1 - 10
of 1 470
pro vyhledávání: '"Boehm T"'
Autor:
Rieutord, M., Petit, P., Reese, D., Böhm, T., Ariste, A. Lopez, Mirouh, G., de Souza, A. Domiciano
Publikováno v:
A&A 669, A99 (2023)
Context: Rapid rotation is a common feature of early-type stars but which remains a challenge for the models. The understanding of its effect on stellar evolution is however imperative to interpret the observed properties of numerous stars. Aims: We
Externí odkaz:
http://arxiv.org/abs/2209.09559
Publikováno v:
A&A 666, A20 (2022)
Aims. The very weak magnetic field detected at the surface of Vega hints at a widespread population of weakly magnetic stars of A and B spectral types. We contribute here to gather more clues about the origin of this magnetism by investigating the lo
Externí odkaz:
http://arxiv.org/abs/2208.09196
Autor:
Shultz, M. E., Alecian, E., Petit, V., Bagnulo, S., Böhm, T., Folsom, C. P., Wade, G. A., Collaboration, the MiMeS
W 601 (NGC 6611 601) is one of the handful of known magnetic Herbig Ae/Be stars. We report the analysis of a large dataset of high-resolution spectropolarimetry. The star is a previously unreported spectroscopic binary, consisting of 2 B2 stars with
Externí odkaz:
http://arxiv.org/abs/2103.09670
We evaluate an adaptive gaussian quadrature integration scheme that will be suitable for the numerical evaluation of generalized redistribution in frequency functions. The latter are indispensable ingredients for "full non-LTE" radiation transfer com
Externí odkaz:
http://arxiv.org/abs/1912.08427
Theoretical analysis typically involves imaginary-time correlation functions. Inferring real-time dynamical response functions from this information is notoriously difficult. However, as we articulate here, it is straightforward to compute imaginary-
Externí odkaz:
http://arxiv.org/abs/1907.10182
Autor:
Baum, A., Li, Ying, Tomić, M., Lazarević, N., Jost, D., Löffler, F., Muschler, B., Böhm, T., Chu, J. -H., Fisher, I. R., Valentí, R., Mazin, I. I., Hackl, R.
Publikováno v:
Phys. Rev. B 98, 075113 (2018)
We report results of Raman scattering experiments on twin-free BaFe$_{2}$As$_{2}$ with the main focus placed on understanding the influence of electronic and spin degrees of freedom on the lattice dynamics. In particular, we scrutinize the $E_g$ mode
Externí odkaz:
http://arxiv.org/abs/1806.04989
Spectral signatures of surface spots were recently discovered from high cadence observations of the A star Vega. We aim at constraining the surface distribution of these photospheric inhomogeneities, and investigating a possible short term evolution
Externí odkaz:
http://arxiv.org/abs/1708.04548
Autor:
Chelwani, N., Hoch, D., Jost, D., Botka, B., Scholz, J. -R., Richter, R., Theodoridou, M., Kretzschmar, F., Böhm, T., Kamarás, K., Hackl, R.
Publikováno v:
Appl. Phys. Lett. 110, 193504 (2017)
We report the development of a detection optics for the integration of Raman scattering and scanning probe microscopy at low temperature based on a parabolic mirror. In our set-up half of the paraboloid mirror covers a solid angle of $\pi$ correspond
Externí odkaz:
http://arxiv.org/abs/1702.02086
Publikováno v:
Phys. Rev. Lett. 117, 257001 (2016)
In unconventional superconductors, understanding the form of the pairing interaction is the primary goal. In this regard, Raman spectroscopy is a very useful tool, as it identifies the ground state and also the subleading pairing channels by probing
Externí odkaz:
http://arxiv.org/abs/1611.04541
Autor:
Böhm, T., Ahangharnejhad, R. Hosseinian, Jost, D., Baum, A., Muschler, B., Kretzschmar, F., Adelmann, P., Wolf, T., Wen, H. -H., Chu, J. -H., Fisher, I. R., Hackl, R.
Publikováno v:
Phys. Status Solidi B 254, 1600308 (2017)
We study the interplay of fluctuations and superconductivity in BaFe$_2$As$_2$ (Ba-122) compounds with Ba and Fe substituted by K ($p$ doping) and Co ($n$ doping), respectively. To this end we measured electronic Raman spectra as a function of polari
Externí odkaz:
http://arxiv.org/abs/1608.02772