The SPHERE infrared survey for exoplanets (SHINE). V. Complete observations, data reduction and analysis, detection performances, and final results
Abstract
During the past decade, state-of-the-art planet-finder instruments like SPHERE@VLT, coupling coronagraphic devices and extreme adaptive optics systems, unveiled, thanks to large surveys, around 20 planetary mass companions at semi-major axis greater than 10 astronomical units. Direct imaging being the only detection technique to be able to probe this outer region of planetary systems, the SPHERE infrared survey for exoplanets (SHINE) was designed and conducted from 2015 to 2021 to study the demographics of such young gas giant planets around 400 young nearby solar-type stars. In this paper, we present the observing strategy, the data quality, and the point sources analysis of the full SHINE statistical sample as well as snapSHINE. Both surveys used the SPHERE@VLT instrument with the IRDIS dual band imager in conjunction with the integral field spectrograph IFS and the angular differential imaging observing technique. All SHINE data (650 datasets), corresponding to 400 stars, including the targets of the F150 survey, are processed in a uniform manner with an advanced post-processing algorithm called PACO ASDI. An emphasis is put on the classification and identification of the most promising candidate companions. Compared to the previous early analysis SHINE F150, the use of advanced post-processing techniques significantly improved by one or 2 magnitudes (x3-x6) the contrast detection limits, which will allow us to put even tighter constraints on the radial distribution of young gas giants. This increased sensitivity directly places SHINE as the largest and deepest direct imaging survey ever conducted. We detected and classified more than 3500 physical sources. One additional substellar companion has been confirmed during the second phase of the survey (HIP 74865 B), and several new promising candidate companions are awaiting second epoch confirmations.
Cite
@article{arxiv.2501.12002,
title = {The SPHERE infrared survey for exoplanets (SHINE). V. Complete observations, data reduction and analysis, detection performances, and final results},
author = {A. Chomez and P. Delorme and A. -M. Lagrange and R. Gratton and O. Flasseur and G. Chauvin and M. Langlois and J. Mazoyer and A. Zurlo and S. Desidera and D. Mesa and M. Bonnefoy and M. Feldt and J. Hagelberg and M. Meyer and A. Vigan and C. Ginski and M. Kenworthy and D. Albert and S. Bergeon and J. -L. Beuzit and B. Biller and T. Bhowmik and A. Boccaletti and M. Bonavita and W. Brandner and F. Cantalloube and A. Cheetham and V. D'Orazi and C. Dominik and C. Fontanive and R. Galicher and Th. Henning and M. Janson and Q. Kral and E. Lagadec and C. Lazzoni and H. Le Coroller and R. Ligi and A. -L. Maire and G. -D. Marleau and F. Menard and S. Messina and N. Meunier and C. Mordasini and C. Moutou and A. Müller and C. Perrot and M. Samland and H. M. Schmid and T. Schmidt and V. Squicciarini and E. Sissa and M. Turatto and S. Udry and L. Abe and J. Antichi and R. Asensio-Torres and A. Baruffolo and P. Baudoz and J. Baudrand and A. Bazzon and P. Blanchard and A. J. Bohn and S. Brown Sevilla and M. Carbillet and M. Carle and E. Cascone and J. Charton and R. Claudi and A. Costille and V. De Caprio and A. Delboulbe and K. Dohlen and N. Engler and D. Fantinel and P. Feautrier and T. Fusco and P. Gigan and J. H. Girard and E. Giro and D. Gisler and L. Gluck and C. Gry and N. Hubin and E. Hugot and M. Jaquet and M. Kasper and D. Le Mignant and M. Llored and F. Madec and Y. Magnard and P. Martinez and D. Maurel and O. Möller-Nilsson and D. Mouillet and T. Moulin and A. Origné and A. Pavlov and D. Perret and C. Petit and J. Pragt and P. Puget and P. Rabou and J. Ramos and E. L. Rickman and F. Rigal and S. Rochat and R. Roelfsema and G. Rousset and A. Roux and B. Salasnich and J. -F. Sauvage and A. Sevin and C. Soenke and E. Stadler and M. Suarez and Z. Wahhaj and L. Weber and F. Wildi},
journal= {arXiv preprint arXiv:2501.12002},
year = {2025}
}
Comments
Accepted for publication in A&A. 19 pages, 19 figures. Abstract shortened to comply with ArxiV standards. Data ingestion at the CDS is ongoing