2018MNRAS.474.1250F

Query : 2018MNRAS.474.1250F

2018MNRAS.474.1250F - Mon. Not. R. Astron. Soc., 474, 1250-1276 (2018)

An independent determination of the local Hubble constant.

FERNANDEZ ARENAS D., TERLEVICH E., TERLEVICH R., MELNICK J., CHAVEZ R., BRESOLIN F., TELLES E., PLIONIS M. and BASILAKOS S.

Abstract (from CDS):

The relationship between the integrated H β line luminosity and the velocity dispersion of the ionized gas of H II galaxies and giant H II regions represents an exciting standard candle that presently can be used up to redshifts z ∼ 4. Locally it is used to obtain precise measurements of the Hubble constant by combining the slope of the relation obtained from nearby (z <= 0.2) H II galaxies with the zero-point determined from giant H II regions belonging to an 'anchor sample' of galaxies for which accurate redshift-independent distance moduli are available. We present new data for 36 giant H II regions in 13 galaxies of the anchor sample that includes the megamaser galaxy NGC 4258. Our data are the result of the first 4 yr of observation of our primary sample of 130 giant H II regions in 73 galaxies with Cepheid determined distances. Our best estimate of the Hubble parameter is 71.0 ± 2.8(random) ± 2.1(systematic) km s^- 1Mpc- 1^. This result is the product of an independent approach and, although at present less precise than the latest SNIa results, it is amenable to substantial improvement.

Abstract Copyright: © 2017 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): H ii regions - galaxies: star formation - distance scale - cosmology: observations

Simbad objects: 46

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Number of rows : 46
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 IC 10 G 00 20 25.50 +59 17 17.0   13.6 9.5     ~ 1119 1
2 [HL90] 111 HII 00 20 27.0 +59 17 29           ~ 17 1
3 EGGR 382 PM* 00 33 54.4629362352 -12 07 58.775300904 15.511 15.572 14.891 14.467 14.051 DC? 100 0
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11166 1
5 NGC 588 HII 01 32 45.2 +30 38 54 14.59 14.40 14.44 14.89 15.16 ~ 122 1
6 VGHC 2-22 HII 01 33 12.188 +30 38 47.14           ~ 80 0
7 NGC 595 HII 01 33 33.53 +30 41 29.8           ~ 205 0
8 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5845 1
9 NGC 604 HII 01 34 32.1 +30 47 01           ~ 586 0
10 NGC 925 H2G 02 27 16.913 +33 34 43.97   10.69 10.12 9.55   ~ 784 1
11 HZ 4 WD* 03 55 21.9881513952 +09 47 18.135008592 13.917 14.592 14.506 14.58 14.642 DA3.4 203 0
12 BD+52 913 WD* 05 05 30.6180977592 +52 49 51.919301604 10.25 11.44 11.69 11.93 12.108 DA.8 1090 0
13 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17459 0
14 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1190 2
15 NAME LMC 2 Supergiant Shell sh 05 41 27 -69 22.4           ~ 191 0
16 NGC 2366 H2G 07 28 52.4529 +69 12 38.859 12.25 11.86 11.39 11.33   ~ 769 0
17 HK NGC 2403 542 HII 07 36 19.9 +65 37 07           ~ 15 0
18 CXOU J073645.6+653659 HII 07 36 45.6 +65 36 59           ~ 26 0
19 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1790 1
20 [S75b] NGC 2403 2 HII 07 37 06.82 +65 36 38.7           ~ 40 0
21 NGC 2541 GiG 08 14 40.1160678912 +49 03 42.021679932 12.03 12.26 11.80     ~ 313 1
22 Mrk 116 PaG 09 34 02.1 +55 14 25           ~ 1107 1
23 HK NGC 3031 652 HII 09 54 56.6 +69 08 47           ~ 14 0
24 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4452 3
25 HK NGC 3031 268 HII 09 55 53.2 +68 59 04           ~ 10 0
26 NGC 3198 EmG 10 19 54.990 +45 32 58.88 10.83 10.87 10.33     ~ 905 1
27 NGC 3319 SyG 10 39 09.533 +41 41 12.74   11.48 11.07     ~ 312 1
28 Feige 34 HS* 10 39 36.7358839104 +43 06 09.212615280 9.613 10.91 11.14 11.319 11.464 sdOp 682 0
29 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2365 3
30 NGC 4399 PoG 12 25 42.8 +33 30 58           ~ 6 0
31 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1182 1
32 NGC 4400 PoG 12 25 56.0 +33 30 54           ~ 2 0
33 NGC 4401 AG? 12 25 57.57 +33 31 42.1           ~ 6 0
34 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7208 3
35 BD+25 2534 HS* 12 37 23.5161671712 +25 03 59.867922240 9.117 10.26 10.59 10.642 10.809 sdB1(k) 247 0
36 NGC 5447 HII 14 02 28.0 +54 16 34           ~ 70 0
37 NGC 5455 H2G 14 03 01.17 +54 14 29.4           ~ 99 0
38 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2918 2
39 NGC 5461 HII 14 03 40.96 +54 19 02.4           ~ 185 0
40 NGC 5462 HII 14 03 53.0997760440 +54 22 06.493306404           ~ 81 0
41 NGC 5471 EmG 14 04 28.627 +54 23 52.84           ~ 240 1
42 Mrk 487 bCG 15 37 04.237 +55 15 47.60   15.2       ~ 133 0
43 BD+33 2642 pA* 15 51 59.8854348048 +32 56 54.329485272 9.806 10.61 10.73 10.884 10.961 O7p 430 0
44 ESO 338-4 EmG 19 27 58.338 -41 34 30.81   13.55 13.21 13.14 13.43 ~ 238 1
45 BD+28 4211 HS* 21 51 11.0221915656 +28 51 50.367627468 8.922 10.25 10.58 10.656 10.831 sdO2VIIIHe5 799 0
46 Feige 110 HS* 23 19 58.3996844256 -05 09 56.171142864 10.360 11.45 11.50 11.970 12.145 sdO8VIIIHe5 637 1

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