# The SPHERE infrared survey for exoplanets (SHINE). V. Complete observations, data reduction and analysis, detection performances, and final results

**Authors:** A. Chomez, P. Delorme, A. -M. Lagrange, R. Gratton, O. Flasseur, G. Chauvin, M. Langlois, J. Mazoyer, A. Zurlo, S. Desidera, D. Mesa, M. Bonnefoy, M. Feldt, J. Hagelberg, M. Meyer, A. Vigan, C. Ginski, M. Kenworthy, D. Albert, S. Bergeon  
**arXiv:** [2501.12002](https://arxiv.org/abs/2501.12002)  
**Date:** 2025-01-21  
**Summary page:** https://www.summarizepaper.com/en/paper/2501.12002v1/

## Key points

- Advancements in planet-finder instruments like SPHERE@VLT have revolutionized our understanding of planetary systems
- Direct imaging is the only technique capable of probing the outer regions of planetary systems
- The SHINE survey aimed to study young gas giant planets around 400 nearby solar-type stars using SPHERE@VLT
- SHINE utilized advanced technology such as IRDIS dual-band imager and IFS integral field spectrograph with angular differential imaging techniques
- Data from SHINE revealed over 3500 physical sources, including one additional substellar companion (HIP 74865 B)
- Observational strategy involved standardized templates and a dedicated optimal scheduler called SPOT for efficient scheduling
- SHINE presented detailed insights into the demographics of young gas giant planets and showcased significant improvements in contrast detection limits compared to previous analyses

## Summary

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In the past decade, advancements in planet-finder instruments such as SPHERE@VLT have revolutionized our understanding of planetary systems. These advancements have uncovered around 20 planetary mass companions at semi-major axis greater than 10 astronomical units. Direct imaging, enabled by cutting-edge technology like coronagraphic devices and extreme adaptive optics systems, remains the only technique capable of probing the outer regions of planetary systems. To further explore this frontier, the SPHERE infrared survey for exoplanets (SHINE) was conducted from 2015 to 2021 with the goal of studying young gas giant planets around 400 nearby solar-type stars. Led by a team including A. Delboulbé, K. Dohlen, and N. Engler, the SHINE survey utilized the SPHERE@VLT instrument with IRDIS dual-band imager and IFS integral field spectrograph in conjunction with angular differential imaging techniques. The data from SHINE consisted of 650 datasets from 400 stars processed using advanced post-processing algorithms like PACO ASDI. This revealed over 3500 physical sources, including one additional substellar companion (HIP 74865 B) that was confirmed during the second phase of the survey. The observational strategy for SHINE involved standardized templates using SPHERE in either IRDIFS or IRDIFS-EXT modes to enable simultaneous observations by IRDIS and IFS in complementary wavelength bands. The use of a dedicated optimal scheduler called SPOT allowed for efficient scheduling and maximization of field-of-view rotation critical for post-processing techniques like angular differential imaging. This comprehensive study presents detailed insights into the demographics of young gas giant planets and showcases significant improvements in contrast detection limits compared to previous analyses. With enhanced sensitivity and deeper direct imaging capabilities, SHINE stands as one of the largest and most profound surveys ever conducted in the field of exoplanet research. The findings from SHINE not only expand our knowledge of planetary systems but also lay a solid foundation for future studies aiming to unravel the mysteries of distant worlds beyond our solar system.