کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1771639 | 1020792 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimal extraction of cosmological information from supernova data in the presence of calibration uncertainties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Optimal extraction of cosmological information from supernova data in the presence of calibration uncertainties Optimal extraction of cosmological information from supernova data in the presence of calibration uncertainties](/preview/png/1771639.png)
چکیده انگلیسی
We present a new technique to extract the cosmological information from high-redshift supernova data in the presence of calibration errors and extinction due to dust. While in the traditional technique the distance modulus of each supernova is determined separately, in our approach we determine all distance moduli at once, in a process that achieves a significant degree of self-calibration. The result is a much reduced sensitivity of the cosmological parameters to the calibration uncertainties. As an example, for a strawman mission similar to that outlined in the SNAP satellite proposal, the increased precision obtained with the new approach is roughly equivalent to a factor of five decrease in the calibration uncertainty.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Astroparticle Physics - Volume 24, Issue 6, January 2006, Pages 451-458
Journal: Astroparticle Physics - Volume 24, Issue 6, January 2006, Pages 451-458
نویسندگان
Alex G. Kim, Ramon Miquel,