EVN observations of 6.7 GHz methanol masers from Medicina survey
| dc.creator | Voronkov, M. A. | |
| dc.creator | Slysh, V. I. | |
| dc.creator | Palagi, F. | |
| dc.creator | Tofani, G. | |
| dc.date | 2002-05-31 | |
| dc.date.accessioned | 2026-07-07T02:03:50Z | |
| dc.date.available | 2026-07-07T02:03:50Z | |
| dc.description | We report VLBI observations of methanol masers in the brightest 5(1)-6(0) A+ transition at 6.7 GHz in NGC 281W, 18151-1208 and 19388+2357. Using the fringe rate method absolute positions were obtained for all observed sources. A linear ordered structure with a velocity gradient was revealed in NGC 281W. Under assumption that such structure is an edge-on Keplerian disk around the central object with a mass of 30Msun located at a distance of 3.5 kpc from the Sun, we estimated that methanol masers are situated at the distance about 400 a.u. from the center of the disk. A second epoch of observations was reported for L1206, GL2789 and 20062+3550. The upper limits on the relative motions of maser spots are estimated to be 4.7 km/s and 28 km/s for L1206 and GL2789 respectively. | |
| dc.description | 2 pages, 1 table, 2 figures, proceedings of the 6th EVN Symposium | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0205547 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0205547 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/4526 | |
| dc.subject | Astrophysics | |
| dc.title | EVN observations of 6.7 GHz methanol masers from Medicina survey | |
| dc.type | text |