التفاصيل البيبلوغرافية
| العنوان: |
De-biased Populations of Kuiper Belt Objects from the Deep Ecliptic Survey |
| المؤلفون: |
Adams, E. R., Gulbis, A. A. S., Elliot, J. L., Benecchi, S. D., Buie, M. W., Trilling, D. E., Wasserman, L. H. |
| سنة النشر: |
2013 |
| المجموعة: |
Astrophysics |
| مصطلحات موضوعية: |
Astrophysics - Earth and Planetary Astrophysics |
| الوصف: |
The Deep Ecliptic Survey (DES) discovered hundreds of Kuiper Belt objects from 1998-2005. Follow-up observations yielded 304 objects with good dynamical classifications (Classical, Scattered, Centaur, or 16 mean-motion resonances with Neptune). The DES search fields are well documented, enabling us to calculate the probability of detecting objects with particular orbital parameters and absolute magnitudes at a randomized point in each orbit. Grouping objects together by dynamical class leads, we estimate the orbital element distributions (a, e, i) for the largest three classes (Classical, 3:2, and Scattered) using maximum likelihood. Using H-magnitude as a proxy for the object size, we fit a power law to the number of objects for 8 classes with at least 5 detected members (246 objects). The best Classical slope is alpha=1.02+/-0.01 (observed from 5<=H<=7.2). Six dynamical classes (Scattered plus 5 resonances) are consistent in slope with the Classicals, though the absolute number of objects is scaled. The exception to the power law relation are the Centaurs (non-resonant with perihelia closer than Neptune, and thus detectable at smaller sizes), with alpha=0.42+/-0.02 (7.5Comment: 26 pages emulateapj, 6 figures, 5 tables, accepted by AJ |
| نوع الوثيقة: |
Working Paper |
| DOI: |
10.1088/0004-6256/148/3/55 |
| URL الوصول: |
http://arxiv.org/abs/1311.3250 |
| رقم الانضمام: |
edsarx.1311.3250 |
| قاعدة البيانات: |
arXiv |