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SEARCHING FOR PLANETS IN HOLEY DEBRIS DISKS WITH THE APODIZING PHASE PLATE*

机译:使用切趾相板在Holey Debris磁盘中搜索行星*

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We present our first results from a high-contrast imaging search for planetary mass companions around stars with gapped debris disks, as inferred from the stars' bright infrared excesses. For the six considered stars, we model the disks' unresolved infrared spectral energy distributions in order to derive the temperature and location of the disk components. With VLT/NaCo Apodizing Phase Plate coronagraphic L'-band imaging, we search for planetary mass companions that may be sculpting the disks. We detect neither disks nor companions in this sample, confirmed by comparing plausible point sources with archival data. In order to calculate our mass sensitivity limit, we revisit the stellar age estimates. One target, HD 17848, at 540 ± 100 Myr old is significantly older than previously estimated. We then discuss our high-contrast imaging results with respect to the disk properties.
机译:我们从高对比度成像搜索中获得了我们的第一批结果,这是根据恒星的明亮红外过量推断出的,带有间隙碎片盘的恒星周围的行星同伴的。对于六个被考虑的恒星,我们对磁盘的未解析红外光谱能量分布进行建模,以便得出磁盘组件的温度和位置。利用VLT / NaCo变迹相板冠状图L'波段成像,我们搜索了可能正在雕刻圆盘的行星质量伴星。通过将可能的点源与档案数据进行比较,我们在该样本中既未检测到磁盘也未检测到伴星。为了计算我们的质量敏感性极限,我们重新审查了恒星年龄估计。 540±100 Myr的目标HD 17848明显比以前估计的要老。然后,我们讨论有关磁盘属性的高对比度成像结果。

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