The SPHERE infrared survey for exoplanets (SHINE)

Desidera, S.; Chauvin, G.; Bonavita, M.; Messina, S.; LeCoroller, H.; Schmidt, T.; Gratton, R.; Lazzoni, C.; Meyer, M.; Schlieder, J.; Cheetham, A.; Hagelberg, J.; Bonnefoy, M.; Feldt, M.; Lagrange, A.-M.; Langlois, M.; Vigan, A.; Tan, T. G.; Hambsch, F.-J.; Millward, M.; ... (2021). The SPHERE infrared survey for exoplanets (SHINE). Astronomy and astrophysics, 651(A70), A70. EDP Sciences 10.1051/0004-6361/202038806

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Large surveys with new-generation high-contrast imaging instruments are needed to derive the frequency and properties of exoplanet populations with separations from ∼5 to 300 AU. A careful assessment of the stellar properties is crucial for a proper understanding of when, where, and how frequently planets form, and how they evolve. The sensitivity of detection limits to stellar age makes this a key parameter for direct imaging surveys. We describe the SpHere INfrared survey for Exoplanets (SHINE), the largest direct imaging planet-search campaign initiated at the VLT in 2015 in the context of the SPHERE Guaranteed Time Observations of the SPHERE consortium. In this first paper we present the selection and the properties of the complete sample of stars surveyed with SHINE, focusing on the targets observed during the first phase of the survey (from February 2015 to February 2017). This early sample composed of 150 stars is used to perform a preliminary statistical analysis of the SHINE data, deferred to two companion papers presenting the survey performance, main discoveries, and the preliminary statistical constraints set by SHINE. Based on a large database collecting the stellar properties of all young nearby stars in the solar vicinity (including kinematics, membership to moving groups, isochrones, lithium abundance, rotation, and activity), we selected the original sample of 800 stars that were ranked in order of priority according to their sensitivity for planet detection in direct imaging with SPHERE. The properties of the stars that are part of the early statistical sample were revisited, including for instance measurements from the GAIA Data Release 2.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences
08 Faculty of Science > Physics Institute
10 Strategic Research Centers > Center for Space and Habitability (CSH)
08 Faculty of Science > Physics Institute > NCCR PlanetS

UniBE Contributor:

Fontanive, C.

Subjects:

500 Science > 520 Astronomy
500 Science > 530 Physics

ISSN:

0004-6361

Publisher:

EDP Sciences

Language:

English

Submitter:

Danielle Zemp

Date Deposited:

18 May 2022 15:09

Last Modified:

22 May 2022 01:54

Publisher DOI:

10.1051/0004-6361/202038806

Additional Information:

Part I. Sample definition and target characterization

BORIS DOI:

10.48350/169723

URI:

https://boris.unibe.ch/id/eprint/169723

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