2002A&A...381L..37T


Query : 2002A&A...381L..37T

2002A&A...381L..37T - Astronomy and Astrophysics, volume 381, L37-40 (2002/1-3)

Evidence for the extragalactic Cepheid distance bias from the kinematical distance scale.

TEERIKORPI P. and PATUREL G.

Abstract (from CDS):

We present new evidence for the extragalactic Cepheid distance bias. A dependence between the Hubble parameter and the absolute Cepheid magnitude limit for a galaxy may be interpreted as a significant bias in the derived photometric distances: those from Cepheid samples with a bright absolute magnitude limit apparently are underestimated. This may be caused not only by the dispersion of M at a fixed Cepheid period, but also by the whole amplitude of variation, together with an upper limit in the period of the observed Cepheids, and other factors. If so, then the value of H0 based on methods using Cepheid distances is expected to be often overestimated (i.e. the distances underestimated). We discuss whether the effect could be not real, but rather caused by uncertainties in kinematical distances.

Abstract Copyright:

Journal keyword(s): galaxies: general - cosmology

Simbad objects: 35

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Number of rows : 35
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 11879 1
2 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1412 2
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5523 1
4 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 735 1
5 NGC 1326 GiG 03 23 56.3657298384 -36 27 52.322333040 11.69 11.43 10.54 10.02 10.9 ~ 253 1
6 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1647 2
7 NGC 1425 EmG 03 42 11.4831633240 -29 53 36.186684252   11.61   11.6 10.9 ~ 194 0
8 NGC 2090 GiG 05 47 01.8557074752 -34 15 01.679264784 12.17 11.70 11.20 10.43 11.0 ~ 174 1
9 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1701 1
10 NGC 2541 GiG 08 14 40.1160678912 +49 03 42.021679932 12.03 12.26 11.80     ~ 293 1
11 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4201 3
12 NAME Sextans B H2G 10 00 00.8217342072 +05 20 09.533389560 12.77 12.25 11.89 11.71   ~ 503 0
13 NGC 3109 G 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 732 2
14 NAME Sex A H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 692 2
15 NGC 3198 EmG 10 19 54.990 +45 32 58.88 10.83 10.87 10.33     ~ 855 1
16 NGC 3319 SyG 10 39 09.533 +41 41 12.74   11.48 11.07     ~ 296 1
17 M 95 GiP 10 43 57.7313485800 +11 42 13.301191332 10.71 10.51 9.73 9.48   ~ 1031 2
18 M 96 GiP 10 46 45.744 +11 49 11.78 10.42 10.15 9.25 8.99   ~ 783 1
19 NGC 3621 AGN 11 18 16.300 -32 48 45.36 10.10 9.44 9.56 8.07 10.1 ~ 537 3
20 M 66 GiP 11 20 15.026 +12 59 28.64 9.85 9.65 8.92     ~ 1272 4
21 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2239 3
22 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1747 2
23 NGC 4414 GiG 12 26 27.1276893168 +31 13 24.626206488 11.12 10.96 10.12     ~ 543 2
24 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6286 0
25 NGC 4505 GiP 12 31 39.2222392512 +03 56 21.641352828   11.71       ~ 331 0
26 NGC 4535 H2G 12 34 20.3443516704 +08 11 51.908488116   11.1       ~ 568 0
27 NGC 4536 GiP 12 34 27.129 +02 11 16.37 11.14 11.16 10.55 17.393   ~ 801 3
28 M 91 LIN 12 35 26.4446761320 +14 29 46.760333748   14.63 13.57     ~ 561 0
29 NGC 4639 GiP 12 42 52.3785000336 +13 15 26.706153600   13.62 12.72     ~ 585 0
30 NGC 4725 Sy2 12 50 26.5716367992 +25 30 02.733090588   13.45 12.44     ~ 653 2
31 IC 4182 BiC 13 05 48.7478324064 +37 36 12.965157684   11.86   11.40   ~ 327 1
32 NGC 5253 AGN 13 39 55.990 -31 38 24.11 11.48 10.94 10.49 10.33   ~ 1316 4
33 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2727 2
34 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1500 0
35 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1174 2

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2022.08.09-03:15:07

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