New periodic 6.7 GHz class II methanol maser associated with G358.460-0.391
| dc.contributor.author | Maswanganye, J.P. | |
| dc.contributor.author | Gaylard, M.J. | |
| dc.contributor.author | Goedhart, S. | |
| dc.contributor.author | Van der Walt, D.J. | |
| dc.contributor.author | Booth, Roy S. | |
| dc.date.accessioned | 2015-06-23T12:30:47Z | |
| dc.date.available | 2015-06-23T12:30:47Z | |
| dc.date.issued | 2015-01-21 | |
| dc.description.abstract | Eight new class II methanol masers selected from the 6.7 GHz Methanol Multibeam survey catalogues I and II were monitored at 6.7 GHz with the 26m Hartebeesthoek Radio Astronomy Observatory (HartRAO) radio telescope for three years and seven months, from February 2011 to September 2014. The sources were also observed at 12.2 GHz and two were sufficiently bright to permit monitoring. One of the eight sources, namely G358.460-0.391, was found to show periodic variations at 6.7 GHz. The period was determined and tested for significance using the Lomb-Scargle, epoch-folding and Jurkevich methods, and by fitting a simple analytic function. The best estimate for the period of the 6.7 GHz class II methanol maser line associated with G358.460-0.391 is 220.0 ± 0.2 day. | en_ZA |
| dc.description.librarian | am2015 | en_ZA |
| dc.description.sponsorship | Jabulani Maswanganye would like to express his gratitude for the bursaries from the National Astrophysics Space Science Programme, Hartebeesthoek Radio Astronomy Observatory, the North-West University doctoral scholarships and the South African SKA Project via the NRF. | en_ZA |
| dc.description.uri | http://mnras.oxfordjournals.org | en_ZA |
| dc.identifier.citation | Maswanganye, JP, Gaylard, MJ, Goehart, S, Van der Walt, DJ & Booth, RS 2014, 'New periodic 6.7 GHz class II methanol maser associated with G358.460-0.391', Monthly Notices of the Royal Astronomical Society, vol. 446, no. 3, pp. 2730-2737. | en_ZA |
| dc.identifier.issn | 0035-8711 (print) | |
| dc.identifier.issn | 1365-2966 (online) | |
| dc.identifier.other | 10.1093/mnras/stu2306 | |
| dc.identifier.uri | http://hdl.handle.net/2263/45688 | |
| dc.language.iso | en | en_ZA |
| dc.publisher | Oxford University Press | en_ZA |
| dc.rights | © 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. This work is distributed under the Creative Commons Attribution License. | en_ZA |
| dc.subject | Masers HII regions ISM | en_ZA |
| dc.subject | Clouds Radio lines | en_ZA |
| dc.subject | ISM stars | en_ZA |
| dc.subject | Formation | en_ZA |
| dc.title | New periodic 6.7 GHz class II methanol maser associated with G358.460-0.391 | en_ZA |
| dc.type | Article | en_ZA |