کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1773793 | 1021145 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Near-infrared spectroscopy of 133P/Elst-Pizarro Near-infrared spectroscopy of 133P/Elst-Pizarro](/preview/png/1773793.png)
Comet 133P/Elst-Pizarro, known to be a main-belt asteroid with a cometary activity, was observed with the near-infrared integral field spectrograph SINFONI at the 8.2-m Very Large Telescope in J, H, and K bands during its 2007 perihelion passage. The goal of these observations was to attempt detection of water ice absorption bands. We present here the details of the data processing, the results of these observations, and our compositional modeling of the final spectrum. No water ice absorptions were detected within the noise of the spectrum but we show that this spectrum is compatible with a reasonable near-infrared albedo value of 7–10% and a mixture of water ice, black carbon, Tholin and silicates. This interpretation, nevertheless, is not unique.
Journal: Icarus - Volume 211, Issue 1, January 2011, Pages 553–558