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A new approach to the detection of exoplanets

Sahil Agarwal, Fabio Del Sordo, and John Wettlaufer

The detection of Earth-like exoplanets is challenging because several sources of noise hinder from uncovering the imprint of a low-mass planet in observations.

We have implemented a method, called MultiFractal Temporally Weighted Detrended Fluctuation Analysis, to detect planets orbiting a distant star. This makes no use of any fitting procedure to filter out the noise, but instead characterizes it by looking at the fluctuations of the data at different wavelengths. In particular, this approach allows to measure the time scales over which stellar noise operates, thus opening a new door to interpret the data that will come from the next generation of spectrographs.

Original paper: Exoplanetary Detection by Multifractal Spectral Analysis

Upcoming Seminars

Monday, 23 October 2017
13:15      Nordita East Seminar Room (132:028)
Classifying integrable symmetric space strings
Linus Wulff  (Masaryk U.)
Tuesday, 24 October 2017
13:15      Seminar Room FA31 (AlbaNova Main Building)
The nature and nurture of clustered star formation: linking parsec to galactic scale physical processes
Angela Adamo  (SU)
13:30      Nordita South Seminar Room (112:028)
A unified nonlinear stochastic time series analysis for climate science
Woosok Moon  (Nordita)
Wednesday, 25 October 2017
16:00      Seminar Room FA32 (AlbaNova Main Building)
Cosmology & Gravity Working Group -- Klein Bottle
Thursday, 26 October 2017
10:30      Nordita West Seminar Room (122:026)
Making, baking and breaking: Dust in the ISM
Anja Andersen   (Dark Cosmology Centre (Copenhagen))
11:30      Nordita West Seminar Room (122:026)
Dust depletion from the Milky Way to low-metallicity distant galaxies
Annalisa De Cia  (ESO (Garching))
14:00      Nordita West Seminar Room (122:026)
The dust cleansing of the Sun-forming cloud
Bengt Gustafsson  (Uppsala Univ. / Nordita)
15:00      Nordita West Seminar Room (122:026)
In a cloud of dust: what is going in the turbulent dusty centres of cold molecular clouds?
Lars Mattsson  (Nordita)

Taken from the AlbaNova Agenda

See also list of all regular theory seminars at AlbaNova

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7 Sep 2017