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系外行星SPHERE红外巡天(SHINE)- II。观测、数据整理和分析

The SPHERE infrared survey for exoplanets (SHINE) -- II. Observations, Data reduction and analysis Detection performances and early-results

M. Langlois, R. Gratton, A. -M. Lagrange, P. Delorme, A. Boccaletti, M. Bonnefoy, A. -L. Maire, D. Mesa, G. Chauvin, S. Desidera, A. Vigan, A. Cheetham, J. Hage… 展开作者

M. Langlois, R. Gratton, A. -M. Lagrange, P. Delorme, A. Boccaletti, M. Bonnefoy, A. -L. Maire, D. Mesa, G. Chauvin, S. Desidera, A. Vigan, A. Cheetham, J. Hagelberg, M. Feldt, M. Meyer, P. Rubini, H. Le Coroller, F. Cantalloube, B. Biller, M. Bonavita, T. Bhowmik, W. Brandner, S. Daemgen, V. D'Orazi, O. Flasseur, C. Fontanive, R. Galicher, J. Girard, P. Janin-Potiron, M. Janson, M. Keppler, T. Kopytova, E. Lagadec, J. Lannier, C. Lazzoni, R. Ligi, N. Meunier, A. Perreti, C. Perrot, L. Rodet, C. Romero, D. Rouan, M. Samland, G. Salter, E. Sissa, T. Schmidt, A. Zurlo, D. Mouillet, L. Denis, E. Thiebaut, J. Milli, Z. Wahhaj, J. -L. Beuzit, C. Dominik, Th. Henning, F. Menard, A. Muller, H. M. Schmid, M. Turatto, S. Udry, L. Abe, J. Antichi, F. Allard, A. Baruffolo, P. Baudoz, J. Baudrand, A. Bazzon, P. Blanchard, M. Carbillet, M. Carle, E. Cascone, J. Charton, R. Claudi, A. Costille, V. De Caprio, A. Delboulbe, K. Dohlen, D. Fantinel, P. Feautrier, T. Fusco, P. Gigan, E. Giro, D. Gisler, L. Gluck, C. Gry, N. Hubin, E. Hugot, M. Jaquet, M. Kasper, D. Le Mignant, M. Llored, F. Madec, Y. Magnard, P. Martinez, D. Maurel, S. Messina, O. Moller-Nilsson, L. Mugnier, T. Moulin, A. Origne, A. Pavlov, D. Perret, C. Petit, J. Pragt, P. Puget, P. Rabou, J. Ramos, F. Rigal, S. Rochat, R. Roelfsema, G. Rousset, A. Roux, B. Salasnich, J. F. Sauvage, A. Sevin, C. Soenke, E. Stadler, M. Suarez, L. Weber, F. Wildi, E. Rickman

摘要:

在过去的几十年里,直接成像已经证实了存在亚恒星的同伴(系外行星或褐矮星)在远离其宿主恒星的宽轨道上(>10 au)。为了了解它们的形成和演化机制,我们在2015年启动了系外行星的SPHERE红外巡天(SHINE),这是一项对年轻的附近恒星进行系统的直接成像调查,以探索它们的人口统计。{We旨在探测和描述年轻恒星附近雪线以外的巨行星和褐矮星的数量。结合调查的完整性,我们的观测提供了限制这些年轻巨行星的统计特性(发生,质量和轨道分布,对恒星质量的依赖性)的机会。{In在本研究中,我们提出了观测和数据分析的策略,被检测候选星的排序过程,以及对150颗恒星的子样本的调查性能,这些恒星代表了SHINE的全部样本。这些观测是在2015年2月至2017年2月期间以均匀的方式进行的,使用了专用的地面VLT/SPHERE仪器,配备了IFS积分场摄谱仪和IRDIS双波段成像仪,覆盖了0.9至2.3 $μ$ m的光谱范围。我们使用日冕,角度和光谱差分成像技术,以达到最佳的检测性能,这项研究的行星质量制度。

英文摘要:

Over the past decades, direct imaging has confirmed the existence of substellar companions (exoplanets or brown dwarfs) on wide orbits (>10 au) from their host stars. To understand their formation and evolution mechanisms, we have initiated in 2015 the SPHERE infrared survey for exoplanets (SHINE), a systematic direct imaging survey of young, nearby stars to explore their demographics.} {We aim to detect and characterize the population of giant planets and brown dwarfs beyond the snow line around young, nearby stars. Combined with the survey completeness, our observations offer the opportunity to constrain the statistical properties (occurrence, mass and orbital distributions, dependency on the stellar mass) of these young giant planets.} {In this study, we present the observing and data analysis strategy, the ranking process of the detected candidates, and the survey performances for a subsample of 150 stars, which are representative of the full SHINE sample. The observations were conducted in an homogeneous way from February 2015 to February 2017 with the dedicated ground-based VLT/SPHERE instrument equipped with the IFS integral field spectrograph and the IRDIS dual-band imager covering a spectral range between 0.9 and 2.3 $μ$m. We used coronographic, angular and spectral differential imaging techniques to reach the best detection performances for this study down to the planetary mass regime.}

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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