Modified Median Statistics and Type Ia Supernova Data

Details Modified Median Statistics and Type Ia Supernova Data Modified Median Statistics and Type Ia Supernova Data

2001-11-09

arxiv.org/abs/astro-ph/0111195v2

Astrophys.J. 575 (2002) 989-995

Astronomy and Astrophysics

Astrophysics

A few clarifying comments and references added. Version to appear in The Astrophysical Journal

Scientific paper

10.1086/341353

The median statistic has recently been discussed by Gott \textit{et al.} as a more reliable alternative to the standard $\chi^2$ likelihood analysis, in the sense of requiring fewer assumptions about the data and being almost as constraining. We apply this statistic to the currently available combined dataset of 92 distant type Ia supernovae, and also to a mock SNAP-class dataset. We find that the performances of the modified median and $\chi^2$ statistics are comparable, particularly in the latter case. We further extend the work of Gott \textit{et al.} by modifying the median statistic to account for the number and size of sequences of consecutive points above or below the median. We also comment on how the performance of the statistic depends on the choice of free parameters that one is estimating.

Affiliated with

Also associated with

No associations

Rating

Modified Median Statistics and Type Ia Supernova Data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Modified Median Statistics and Type Ia Supernova Data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modified Median Statistics and Type Ia Supernova Data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-539037