316 citations · 2.1k across the 41 of their papers we have counts for
6 papers · 1 filter
Statistical methods for exoplanet detection with radial velocities
Nathan C. Hara, Eric B. Ford
Exoplanets can be detected with various observational techniques. Among them, radial velocity (RV) has the key advantages of revealing the architecture of planetary systems and mea…
A continuous multiple hypothesis testing framework for optimal exoplanet detection
Nathan C. Hara, Thibault de Poyferré, Jean-Baptiste Delisle +1
When searching for exoplanets, one wants to count how many planets orbit a given star, and to determine what their characteristics are. If the estimated planet characteristics are…
Efficient modeling of correlated noise II. A flexible noise model with fast and scalable methods
J. -B. Delisle, N. Hara, D. Ségransan
Correlated noise affects most astronomical datasets and to neglect accounting for it can lead to spurious signal detections, especially in low signal-to-noise conditions, which is…
Efficient modeling of correlated noise I. Statistical significance of periodogram peaks
J. -B. Delisle, N. Hara, D. Ségransan
Periodograms are common tools used to search for periodic signals in unevenly spaced time series. The significance of periodogram peaks is often assessed using false alarm probabil…
Theia: Faint objects in motion or the new astrometry frontier
The Theia Collaboration, Celine Boehm, Alberto Krone-Martins +96
In the context of the ESA M5 (medium mission) call we proposed a new satellite mission, Theia, based on relative astrometry and extreme precision to study the motion of very faint…
Radial Velocity Data Analysis with Compressed Sensing Techniques
Nathan C. Hara, Gwenaël Boué, Jacques Laskar +1
We present a novel approach for analysing radial velocity data that combines two features: all the planets are searched at once and the algorithm is fast. This is achieved by utili…