کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8134450 | 1523488 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detectability of Chelyabinsk-like impactors with Pan-STARRS
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Detectability of Chelyabinsk-like impactors with Pan-STARRS Detectability of Chelyabinsk-like impactors with Pan-STARRS](/preview/png/8134450.png)
چکیده انگلیسی
In this work we present the results of our analysis of the detectability of an object in the size range of the recent Chelyabinsk impactor under the current discovery and follow-up capabilities, using the specific observational strategy of the Pan-STARRS survey as a reference point. We first discuss the observability of real-life cases inspired by the impact trajectories of 2008Â TC3, 2014Â AA, the past Earth encounters with 2014Â RC and 2015Â TB145, the upcoming fly-by of 2012Â TC4 and the Chelyabinsk event. We then expand our analysis with the investigation of synthetic impactors with realistic orbital distributions. Among the various conclusions of our analysis, we discuss how the time of first detectability of an object does not necessarily correspond to the moment when that same object can be recognized as an impactor. We also point out how objects discovered only a few days before impact can be immediately identified as impactors, partly thanks to the good astrometric quality that telescopes like Pan-STARRS currently achieve.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Icarus - Volume 303, 15 March 2018, Pages 265-272
Journal: Icarus - Volume 303, 15 March 2018, Pages 265-272
نویسندگان
Marco Micheli, Richard J. Wainscoat, Larry Denneau,