Global characterisation of the GELINA facility for high-resolution neutron time-of-flight measurements by Monte Carlo simulations

2010 ◽  
Vol 618 (1-3) ◽  
pp. 54-68 ◽  
Author(s):  
D. Ene ◽  
C. Borcea ◽  
S. Kopecky ◽  
W. Mondelaers ◽  
A. Negret ◽  
...  
Keyword(s):  
Monte Carlo ◽  
High Resolution ◽  
Monte Carlo Simulations ◽  
Time Of Flight ◽  
Neutron Time ◽  
Flight Measurements

scholarly journals Exploring the robustness of Keplerian signals to the removal of active and telluric features

2020 ◽  
Vol 500 (1) ◽  
pp. 548-557
Author(s):  
M Lisogorskyi ◽  
H R A Jones ◽  
F Feng ◽  
R P Butler ◽  
S Vogt
Keyword(s):  
Monte Carlo ◽  
High Resolution ◽  
Monte Carlo Simulations ◽  
Large Amplitude ◽  
Absorption Cell ◽  
Stellar Rotation ◽  
Long Period ◽  
Active Line ◽  
Low Amplitude ◽  
Rotation Signal

ABSTRACT We examine the influence of activity- and telluric-induced radial velocity (RV) signals on high-resolution spectra taken with an iodine absorption cell. We exclude 2-$\mathring{\rm A}$ spectral chunks containing active and telluric lines based on the well-characterized K1V star α Centauri B and illustrate the method on Epsilon Eridani – an active K2V star with a long-period, low-amplitude planetary signal. After removal of the activity- and telluric-sensitive parts of the spectrum from the RV calculation, the significance of the planetary signal is increased and the stellar rotation signal disappears. In order to assess the robustness of the procedure, we perform Monte Carlo simulations based on removing random chunks of the spectrum. Simulations confirm that the removal of lines impacted by activity and tellurics provides a method for checking the robustness of a given Keplerian signal. We also test the approach on HD 40979, which is an active F8V star with a large-amplitude planetary signal. Our Monte Carlo simulations reveal that the significance of the Keplerian signal in the F star is much more sensitive to wavelength. Unlike the K star, the removal of active lines from the F star greatly reduces the RV precision. In this case, our removal of a K star active line from an F star does not a provide a simple useful diagnostic because it has far less RV information and heavily relies on the strong active lines.

Monte Carlo simulations of Meyer-Neldel effect on carrier time-of-flight in a-Si:H

1997 ◽  
Vol 220 (2-3) ◽  
pp. 254-260 ◽  
Author(s):  
Wen Chao Chen ◽  
Louis-André Hamel ◽  
Arthur Yelon
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Time Of Flight

Monte-Carlo simulations for an endoscopic time-of-flight PET detector

2014 ◽  
Author(s):  
Milan Zvolsky ◽  
Aron Cserkaszky ◽  
Giacomo Cucciati ◽  
Erika Garutti ◽  
Benjamin Frisch
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Time Of Flight
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