TY - JOUR
T1 - Adaptation of the phase distance correlation periodogram to account for measurement uncertainties
AU - Binnenfeld, A.
AU - Shahaf, S.
AU - Zucker, S.
N1 - Publisher Copyright:
© 2024 EDP Sciences. All rights reserved.
PY - 2024/6/1
Y1 - 2024/6/1
N2 - We present an improvement of the phase distance correlation (PDC) periodogram to account for uncertainties in the time-series data. The PDC periodogram introduced in our previous papers is based on the statistical concept of distance correlation. By viewing each measurement and its accompanying error estimate as a probability distribution, we are able to use the concept of energy distance to design a distance function (metric) between measurement-uncertainty pairs. We used this metric as the basis for the PDC periodogram, instead of the simple absolute difference. We demonstrate the periodogram's performance using both simulated and real-life data. This adaptation makes the PDC periodogram much more useful, demonstrating it can be helpful in the exploration of large time-resolved astronomical databases, ranging from Gaia radial velocity and photometry data releases to those of smaller surveys, such as APOGEE and LAMOST. We have made a public GitHub repository available, with a Python implementation of the new tools available to the community.
AB - We present an improvement of the phase distance correlation (PDC) periodogram to account for uncertainties in the time-series data. The PDC periodogram introduced in our previous papers is based on the statistical concept of distance correlation. By viewing each measurement and its accompanying error estimate as a probability distribution, we are able to use the concept of energy distance to design a distance function (metric) between measurement-uncertainty pairs. We used this metric as the basis for the PDC periodogram, instead of the simple absolute difference. We demonstrate the periodogram's performance using both simulated and real-life data. This adaptation makes the PDC periodogram much more useful, demonstrating it can be helpful in the exploration of large time-resolved astronomical databases, ranging from Gaia radial velocity and photometry data releases to those of smaller surveys, such as APOGEE and LAMOST. We have made a public GitHub repository available, with a Python implementation of the new tools available to the community.
KW - Binaries: general
KW - Methods: data analysis
KW - Methods: statistical
KW - Planets and satellites: detection
UR - http://www.scopus.com/inward/record.url?scp=85196294602&partnerID=8YFLogxK
U2 - 10.1051/0004-6361/202347764
DO - 10.1051/0004-6361/202347764
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AN - SCOPUS:85196294602
SN - 0004-6361
VL - 686
JO - Astronomy and Astrophysics
JF - Astronomy and Astrophysics
M1 - A192
ER -