2021RAA....21...61T

Query : 2021RAA....21...61T

2021RAA....21...61T - Research in Astron. and astroph., 21, 61-61 (2021/March-0)

Measurement of Hubble constant: were differences in secondary distance indicators apparent as early as the HST Key Project?

THAKUR R.K., GUPTA S., NIGAM R. and THIRUVIKRAMAN P.

Abstract (from CDS):

Different measurements of the Hubble constant (H0) are not consistent, and a tension between the CMB based methods and cosmic distance ladder based methods has been observed. Measurements from various distance based methods are also inconsistent. To aggravate the problem, the same cosmological probe (Type Ia SNe for instance) calibrated through different methods also provides different values of H0. We compare various distance ladder based methods through the already available unique data obtained from the Hubble Space Telescope (HST). Our analysis is based on parametric (t-test) as well as non-parametric statistical methods such as the Mann-Whitney U test and Kolmogorov-Smirnov test. Our results show that different methods provide different values of H0 and the differences are statistically significant. The biases in the calibration would not account for these differences as the data have been taken from a single telescope with a common calibration scheme. The unknown physical effects or issues with the empirical relations of distance measurement from different probes could give rise to these differences.

Abstract Copyright: © 2021 National Astronomical Observatories

Journal keyword(s): Cosmology - Supernovae - Hubble constant

CDS comments: ESO 50 and MDL59 groups not identified.

Simbad objects: 72

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Number of rows : 72
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 SN 1992au SN* 00 10 40.48 -49 56 45.3   18.17 18.11     SNIa 38 1
2 SN 1996bl SN* 00 36 17.97 +11 23 40.5   17.05 16.63     SNIa 69 1
3 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
4 NAME Scl Group GrG 01 00 06 -33 44.2           ~ 526 0
5 NGC 383 AGN 01 07 24.9647814840 +32 24 45.132586200   13.6 12.14     ~ 821 3
6 SN 1992bo SN* 01 21 58.44 -34 12 43.5   15.85 15.76     SNIa 119 1
7 NGC 507 rG 01 23 39.950 +33 15 22.22   13.0       ~ 459 1
8 ACO 194 ClG 01 26 01.3 -01 22 02           ~ 363 2
9 SN 1993ae SN* 01 29 48.91 -01 58 37.1   15.46 15.31     SNIa 62 1
10 SN 1992br SN* 01 45 44.83 -56 05 57.9   19.34 19.24     SNIa 51 1
11 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 727 1
12 SN 1995ak SN* 02 45 48.83 +03 13 50.1   16.23 16.07     SNIa 69 1
13 SN 1995ao SN* 02 57 30.70 -01 41 19.8       21.5   SNIa 14 1
14 ACO 400 ClG 02 57 37.4 +06 00 45           ~ 408 3
15 SN 1992bc SN* 03 05 16.05 -39 33 34.6   15.15 15.17     SNIa 130 1
16 SN 1992bs SN* 03 29 27.20 -37 16 18.9     18.28     SNIa 58 1
17 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 2282 1
18 SN 1992bp SN* 03 36 37.95 -18 21 13.7   18.53 18.37     SNIa 66 1
19 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
20 NAME Eridanus ClG GrG 03 38 32.00 -22 18 51.0           ~ 200 0
21 SN 1992bk SN* 03 43 01.90 -53 37 56.8   18.07 18.06     SNIa 41 1
22 NAME NGC 1566 Group GrG 04 20 00.6 -54 56 17           ~ 180 0
23 SN 1992bh SN* 04 59 27.55 -58 49 44.2   17.68 17.55     SNIa 67 1
24 ACO 539 ClG 05 16 35.1 +06 27 14           ~ 255 2
25 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
26 SN 1987A SN* 05 35 27.98840 -69 16 11.1134           SNIIpec 5203 2
27 SN 1993ac SN* 05 46 23.58 +63 22 07.1   18.36 17.71     SNIa 63 1
28 ACO 3381 ClG 06 09.9 -33 36           ~ 75 2
29 SN 1992bg SN* 07 41 56.55 -62 31 10.0   17.39 16.66     SNIa 60 2
30 NAME Cancer Cluster ClG 08 20 54 +21 04.5           ~ 161 0
31 NAME M 81-82 Group GrG 09 55 +69.1           ~ 758 0
32 SN 1993ag SN* 10 03 35.00 -35 27 47.6   18.30 17.78     SNIa 71 1
33 SN 1992J SN* 10 09 00.30 -26 38 24.4   17.88 17.54     SNIa 50 1
34 SN 1991S SN* 10 29 27.7 +22 00 43   17.78 17.69     SNIa 62 1
35 ACO S 636 ClG 10 29 41.0957 -35 19 32.908           ~ 248 0
36 SN 1993B SN* 10 34 51.38 -34 26 30.0   18.81 18.39     SNIa 57 1
37 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
38 ACO S 639 ClG 10 40 33 -46 11.7           ~ 30 0
39 NGC 3557 Sy1 11 09 57.653 -37 32 21.02   11.50 10.40 9.79   ~ 283 2
40 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
41 SN 1994M SN* 12 31 08.61 +00 36 19.6   16.31 16.24     SNIa 102 1
42 SN 1994S SN* 12 31 21.85 +29 08 04.0   14.80 14.77     SNIa 120 1
43 SN 1992P SN* 12 42 48.93 +10 21 36.2   16.14 16.09     SNIa 78 1
44 NAME Cen 30 ClG 12 48 51.7 -41 18 21           ~ 66 0
45 NAME Cen 45 GrG 12 50 -41.3           ~ 51 0
46 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
47 SN 1994T SN* 13 21 30.73 -02 08 56.5   17.31 17.15     SNIa 57 1
48 SN 1991U SN* 13 23 22.00 -26 06 30.0   16.67 16.35     SNIa 56 1
49 SN 1992ag SN* 13 24 09.85 -23 52 43.7   16.64 16.15     SNIa 68 1
50 SN 1993O SN* 13 31 07.87 -33 12 50.5   17.79 17.96     SNIa 71 1
51 NAME IC 4329 Group GrG 13 48 36.4 -30 30 13           ~ 147 2
52 SN 1996C SN* 13 50 48.60 +49 19 07.1   16.53 16.48     SNIa 84 1
53 NAME M101 Group GrG 14 03 +54.3           ~ 112 1
54 SN 1970G SN* 14 03 00.83 +54 14 32.8   11.8 11.50     SNIIL 221 1
55 ACO S 753 ClG 14 03 35.9 -33 59 16           ~ 91 1
56 NAME Ursa Major Cluster ClG 15 08.8 +67 07           ~ 424 1
57 SN 1994Q SN* 16 49 51.13 +40 25 55.8   16.35 16.31     SNIa 68 1
58 SN 1990O SN* 17 15 35.92 +16 19 25.8   16.59 16.22     SNIa 83 1
59 ACO S 805 ClG 18 47 14.4 -63 19 45           ~ 137 3
60 SN 1990T SN* 19 59 02.29 -56 15 30.1   17.27 17.03     SNIa 55 1
61 SN 1991ag SN* 20 00 08.61 -55 22 03.1   14.67 14.39     SNIa 61 1
62 SN 1992al SN* 20 45 56.49 -51 23 39.9   14.59 14.54     SNIa 87 2
63 SN 1992ae SN* 21 28 17.94 -61 33 01.4   18.64 18.45     SNIa 68 2
64 SN 1990af SN* 21 34 58.12 -62 44 07.4   17.91 17.75     SNIa 84 1
65 SN 1989L SN* 22 37 49.71 +23 47 15.7     17.5     SNIInL 37 1
66 SN 1992aq SN* 23 04 34.76 -37 20 42.1   19.39 19.33     SNIa 57 1
67 SN 1992bl SN* 23 15 13.09 -44 44 35.7   17.34 17.33     SNIa 65 1
68 NAME Peg Cluster ClG 23 20 14.7 +08 12 23           ~ 131 0
69 ACO 2634 ClG 23 38 18.4 +27 01 37           ~ 515 2
70 ACO 4038 ClG 23 47 31.1 -28 12 10           ~ 349 3
71 SN 1993ah SN* 23 51 50.27 -27 57 47.0   16.32 16.31     SNIa 47 1
72 NAME Local Group GrG ~ ~           ~ 9325 0

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