Eur. Phys. J. Plus (2017) 132: 349
https://doi.org/10.1140/epjp/i2017-11621-7

Regular Article

Observing exoplanets from the planet Earth: How our revolution around the Sun affects the detection of 1-year periods

¹ Dipartimento di Fisica G. Occhialini, Università di Milano Bicocca and INFN, Piazza della Scienza 3, 20123, Milano, Italy
² INAF-Osservatorio Astronomico di Brera, Via E. Bianchi 46, 23807, Merate, Italy

^* e-mail: ennio.poretti@brera.inaf.it

Received: 26 June 2017
Accepted: 3 July 2017
Published online: 11 August 2017

Abstract

We analysed a selected sample of exoplanets with orbital periods close to 1 year to study the effects of the spectral window on the data, affected by the 1 y⁻¹ aliasing due to the Earth motion around the Sun. We pointed out a few cases where a further observational effort would largely improve the reliability of the orbital solutions.