2009A&A...506..435R


Query : 2009A&A...506..435R

2009A&A...506..435R - Astronomy and Astrophysics, volume 506, 435-444 (2009/10-4)

Narrow frequency-windowed autocorrelations as a diagnostic of solar-like stars.

ROXBURGH I.W.

Abstract (from CDS):

This paper investigates the diagnostic potential of narrow, frequency-windowed autocorrelation as a tool for probing the properties of solar-like oscillating stars when the determination of individual frequencies is impossible or is subject to large uncertainties, and when mode identification is difficult. I use theoretical analysis including phase-shifts, modelling, and data analysis. Narrow-windowed autocorrelation of a time series can reveal the variation with frequency of the large separations Δ(ν) and the half large separations Δ01, Δ10, thus helping with mode identification. This technique is applied to the CoRoT p-mode oscillators HD49933, HD175726, HD181420, and HD181906. Theoretical analysis and modelling are presented to illustrate the technique.

Abstract Copyright:

Journal keyword(s): stars: oscillations - methods: analytical - methods: data analysis

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 HD 49933 PM* 06 50 49.8309774552 -00 32 27.167495244   6.147 5.771 7.04   F3V 364 2
2 HD 175726 PM* 18 56 37.1723923656 +04 15 54.462836664   7.28 6.71     G0V 107 0
3 HD 181420 PM* 19 20 27.0720449304 -01 18 35.132869692   6.98 6.55     F6V 85 0
4 HD 181906 PM* 19 22 21.3624224688 +00 22 58.628902908   8.11 7.65     F5V 60 0

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2023.01.27-21:33:34

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