Table 4.
Astrometric information for 11 HMSFRs obtained with the VLBA in the outer arm region.
| Name | α | δ | π | Ref. |
|---|---|---|---|---|
| (hh:mm:ss) | (°:′:″ ) | (mas) | ||
| G073.65+00.19 | 20:16:21.932 | +35:36:06.094 | 0.075 ± 0.020 | * |
| G075.30+01.32 | 20:16:16.012 | +37:35:45.810 | 0.108 ± 0.010 | 1 |
| G090.92+01.48 | 21:09:12.969 | +50:01:03.664 | 0.171 ± 0.031 | * |
| G097.53+03.18 | 21:32:12.434 | +55:53:49.689 | 0.133 ± 0.017 | 2 |
| G135.27+02.79 | 02:43:28.568 | +62:57:08.388 | 0.167 ± 0.011 | 7 |
| G160.14+03.16 | 05:01:40.244 | +47:07:19.026 | 0.244 ± 0.006 | * |
| G168.06+00.82 | 05:17:13.744 | +39:22:19.915 | 0.187 ± 0.022 | 2,3 |
| G182.67−03.26 | 05:39:28.425 | +24:56:31.946 | 0.157 ± 0.042 | 2,4 |
| G196.45−01.68 (S 269) | 06:14:37.641 | +13:49:36.693 | 0.242 ± 0.011 | 5 |
| G211.60+01.06 | 06:52:45.321 | +01:40:23.072 | 0.239 ± 0.010 | * |
| V838 Mon | 07:04:04.822 | −03:50:50.636 | 0.163 ± 0.016 | 6 |
Notes. These sources were used for the outer arm fitting (Sect. 4.3). The names include the galactic coordinates except for V838 Mon which is (217.80,+01.05). The parallax of each source might differ from the published values in the references as we combined independent measurements (one per reference) to increase their accuracy. The parallaxes marked with * will be published as part of the BeSSeL survey (Reid priv. comm.).
References. (1) Sanna et al. (2012), (2) Hachisuka et al. (2015), (3) Honma et al. (2011), (4) data reanalyzed of Hachisuka et al. (2015), (5) variance averaged between Asaki et al. (2014) and results of Table 3 (6) Sparks et al. (2008), (7) Hachisuka et al. (2009).
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