High degree modes & instrumental effects
نویسندگان
چکیده
منابع مشابه
The potential of solar high - degree modes for structureinversionM
It is likely that precise and reliable frequencies of high-degree modes will soon be available from the SOI/MDI experiment. Here we examine the ability of such modes (with l > 300) to resolve the solar structure in the near-surface region. In particular, we investigate inversions to determine the adiabatic exponent ?1 (Basu & Christensen-Dalsgaard 1997) as a test of the solar equation of state,...
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We describe the design of a Kalman filter that identifies suspension violin modes in an interferometric gravitational wave detectors data channel. We demonstrate the filter’s effectiveness by applying it to data taken on the LIGO 40M prototype.
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We discuss here the pulsation properties of the δ Scuti star BV Circini on the basis of data obtained during a simultaneous photometric and spectroscopic campaign in 1996 and a spectroscopic one in 1998, and taking also advantage of the previous photometric observations by Kurtz (1981). Nine pulsation modes were detected from photometry and thirteen from spectroscopy; five of them are in common...
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On the effect of the inhomogeneous subsurface flows on the high degree solar p-modes Abstract. The observed power spectrum of high-degree solar p-modes (ℓ > 200) shows discrepancies with the power spectrum predicted by the stochastic excitement and damping theory. In an attempt to explain these discrepancies, the present paper is concerned with the influence of the observed subsurface flows on ...
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Heterogeneous Treatment Effects: Instrumental Variables without Monotonicity? A fundamental identification problem in program evaluation arises when idiosyncratic gains from participation and the treatment decision depend on each other. Imbens and Angrist (1994) were the first to exploit a monotonicity condition in order to identify an average treatment effect parameter using instrumental varia...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2008
ISSN: 1742-6596
DOI: 10.1088/1742-6596/118/1/012027