scholarly journals Combining BRITE and ground-based photometry for the β Cephei star ν Eridani: impact on photometric pulsation mode identification and detection of several g modes

2016 ◽  
Vol 464 (2) ◽  
pp. 2249-2258 ◽  
Author(s):  
G. Handler ◽  
M. Rybicka ◽  
A. Popowicz ◽  
A. Pigulski ◽  
R. Kuschnig ◽  
...  
2013 ◽  
Vol 9 (S301) ◽  
pp. 499-500
Author(s):  
Nathalie Themessl ◽  
Veronique Fritz ◽  
Michel Breger ◽  
Sabine Karrer ◽  
Barbara G. Castanheira

AbstractOur simultaneous analysis of ground-based photometric and high-resolution spectroscopic data of the δ Scuti star V376 Per revealed eight individual frequencies from 82 nights of two-color photometry and six frequencies from the line-profile variations using 769 stellar spectra. Additionally, we identified the corresponding pulsation modes and derived reliable estimates of the line profile and pulsation mode parameters.


2013 ◽  
Vol 9 (S301) ◽  
pp. 101-107 ◽  
Author(s):  
Katrien Uytterhoeven

AbstractTime-series of high-resolution spectra of massive main-sequence pulsators contain information on the degree l and azimuthal number m of a pulsation mode. I present an overview of existing mode-identification techniques that have been developed to derive l and m from spectroscopic data. I also discuss the data quality needed to perform such a study. Through some examples from the literature I show that the optimal way to identify modes in heat-driven non-radial pulsators is by 1) using multi-site campaign data, 2) combining different spectroscopic mode-identification techniques, and 3) combining results from photometric and spectroscopic mode-identification studies.


2001 ◽  
Vol 552 (2) ◽  
pp. L141-L145 ◽  
Author(s):  
G. Bono ◽  
W. P. Gieren ◽  
M. Marconi ◽  
P. Fouqué

2002 ◽  
Vol 185 ◽  
pp. 334-335
Author(s):  
M. Chadid ◽  
P. Mathias ◽  
J. De Ridder ◽  
C. Aerts

AbstractWe present a new Spectroscopic study of the δ Scuti star 20 CVn in order to solve the controversy on the type of pulsation mode of this object.


1995 ◽  
Vol 155 ◽  
pp. 56-57
Author(s):  
C. Aerts ◽  
T. Van Hoolst ◽  
P. Mathias

AbstractWe identify the pulsation mode of BW Vul by means of both the moment method and the method of photometric amplitudes and find a radial pulsation. We briefly study the non-linear behaviour of BW Vul.


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