Table 1.
Properties of the observed NG sample.
| RA (J2000) | Dec (J2000) | D (Mpc) | SFR (M⊙ yr−1) | DMISM (pc cm−3) | T (h) | |
|---|---|---|---|---|---|---|
| M 31 | 00h42m44.3s | +41° 16′07.5″ | 0.79 ± 0.03 [1] | 0.35 [8] | 142 | 51 |
| IC 342 | 03h46m48.5s | +68° 05′46.0″ | 3.3 ± 0.3 [2] | 2.8 [9] | 178 | 102 |
| M 82 | 09h55m52.4s | +69° 40′46.9″ | 3.53 ± 0.04 [3] | 13 [10] | 41.2 | 184 |
| M 101 | 14h03m12.6s | +54° 20′55.5″ | 6.4 ± 0.5 [4] | 2.9 [11] | 30.9 | 96 |
| NGC 6946 | 20h34m52.3s | +60° 09′13.2″ | 7.7 ± 0.3 [5] | 4.3 [11] | 145.8 | 115 |
| M 106 | 12h18m57.6s | +47° 18′13.4″ | 7.8 ± 0.6 [6] | 2.8 [11] | 25.8 | 84 |
| M 66 | 11h20m15.0s | +12° 59′28.6″ | 11.1 ± 0.4 [7] | 2.7 [11] | 31.1 | 63 |
Notes. Columns list: coordinates, distances (D), SFRs, the dispersion measure contribution from the MW interstellar medium (DMISM) computed as the maximum between the YM16 (Yao et al. 2017) and NE2001 (Cordes & Lazio 2002, 2003) models, and the total exposure time spent on source. SFRs are estimated from Hα luminosities for all the galaxies but M 82 and IC 342, for which infrared luminosities were used.
References. References for distances are: [1] McConnachie et al. (2005); [2] Karachentsev et al. (2004); [3] Dalcanton et al. (2009); [4] Shappee & Stanek (2011); [5] Anand et al. (2018); [6] Newman et al. (2001); and [7] Hoyt et al. (2019). References for SFRs are: [8] Rahmani et al. (2016); [9] Gao & Solomon (2004); [10] Förster Schreiber et al. (2003); [11] Kennicutt et al. (2008).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.