2026ApJS..282...31K

Query : 2026ApJS..282...31K

2026ApJS..282...31K - Astrophys. J., Suppl. Ser., 282, 31 (2026/February-0)

Statistical Issues Often Overlooked when Analyzing Astronomical Data.

KOEN C.

Abstract (from CDS):

The main topics covered in this paper are (1) controlling significance levels when applying the same hypothesis test to many (possibly millions) of datasets; (2) dealing with the fact that for very large datasets hypotheses are rejected for trivially small departures from the null; (3) in the presence of noise, extreme values selected from samples for follow-up studies are often biased; (4) inference conducted on models fitted to data routinely underestimate the parameter standard errors if the selected model was informed by the observations; (5) obtaining overall least-mean-squared error estimates of a group of observations (e.g. a collection of star cluster masses); and (6) the effects of the violation of mathematical regularity conditions on model selection statistics.

Abstract Copyright: © 2026. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Astrostatistics - Astrostatistics techniques

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME sig Ori Cluster OpC 05 38 42 -02 36.0           ~ 623 0

Query : 2026ApJS..282...31K

Basic data :
NAME sig Ori Cluster -- Open Cluster
Other object types: otypes_help 		SFR (), Cl* (C,Villafranca,...), OpC (2017AstBu), MGr (2013A&A)
ICRS coord. (ep=J2000) : 		05 38 42.0 -02 36 00 (Optical) [ ] E 2009MNRAS.399.2146W
FK4 coord. (ep=B1950 eq=1950) : 		05 36 11.3 -02 37 39 [ ]
Gal coord. (ep=J2000) : 		206.8107 -17.3462 [ ]
Proper motions mas/yr : 		1.545 -0.485 [0.651 0.618 90] C 2022ApJS..262....7H
Radial velocity / Redshift / cz : 		V(km/s) 29.5 [0.5] / z(spectroscopic) 0.000098 [0.000002] / cz 29.50 [0.50]
   (Opt) A 2017A&A...600A.106C
Parallaxes (mas): 		2.495 [0.083] C 2022ApJS..262....7H
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Hierarchy : number of linked objects
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Identifiers (11) :
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NAME Garrison 1 NAME sigma Ori Cluster NAME sig Ori Group [KPR2004b] 80
C 0536-026 NAME sigma Orionis Cluster NAME sigma Ori Group [KPS2012] MWSC 0612
NAME sig Ori Cluster NAME sig Ori Association Villafranca O-026

References (623 between 1850 and 2026) (Total 623)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Velocities : 2    Distance : 2    Plx : 1    PM : 2   

   

Observing logs
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