Current Program

Advances in Theoretical Cosmology in Light of Data

Advances in Theoretical Cosmology in Light of Data


3—28 Jul 2017

What is the expansion history of the Universe? What are dark energy and dark matter? Is Einstein’s theory of gravity valid on cosmological scales? What generated the initial perturbations that grew

Future Programs »


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

Wednesday, 26 July 2017
10:00      FB52
Event Talk Halos and Voids: mass and light profiles
Bhuvnesh Jain 
10:30      FB52
Event Talk TBA
Vincent Desjacques 
12:00      FB52
Event Talk Dynamic Reconstruction of Earlier Universe
Siyu He 
12:30      FB52
Event Talk A halo model for cosmological neutral hydrogen
Hamsa Padmanabhan 
12:45      Room assigned
Event Talk Time for discussion, collaboration and lunch
15:00      FB52
Event Talk Panel discussion
16:30      Assigned rooms
Event Talk Time for discussion and collaboration
19:00      TBA
Event Talk Workshop dinner

Taken from the AlbaNova Agenda

See also list of all regular theory seminars at AlbaNova

Contact us:

Roslagstullsbacken 23
106 91 Stockholm

Phone: +46 8 5537 8444
Fax: +46 8 5537 8404

KTH Royal Institute of Technology Stockholm University The Nordic Council of Ministers The Swedish Research Council

This page was printed on 2017-07-25 from

21 Jul 2017