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Akademický článek
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We have used the Swedish ESO Submillimetre Telescope (SEST) to search for new class II methanol maser transitions towards the southern source G345.01+1.79. Over a period of 5 days we observed 11 known or predicted class II methanol maser transitions.
Externí odkaz:
http://arxiv.org/abs/1209.5744
Autor:
Godfrey, M. D., Jiang, P., Kang, W., Simon, S. H., Baldwin, K. W., Pfeiffer, L. N., West, K. W.
Experimental study of quantum Hall corrals reveals Aharonov-Bohm-Like (ABL) oscillations. Unlike the Aharonov-Bohm effect which has a period of one flux quantum, $\Phi_{0}$, the ABL oscillations possess a flux period of $\Phi_{0}/f$, where $f$ is the
Externí odkaz:
http://arxiv.org/abs/0708.2448
Autor:
Ellingsen, S. P., Voronkov, M. A., Cragg, D. M., Sobolev, A. M., Breen, S. L., Godfrey, P. D.
Interstellar masers are unique probes of the environments in which they arise. In studies of high-mass star formation their primary function has been as signposts of these regions and they have been used as probes of the kinematics and physical condi
Externí odkaz:
http://arxiv.org/abs/0705.2906
Autor:
Cunningham, M. R., Jones, P. A., Godfrey, P. D., Cragg, D. M., Bains, I., Burton, M. G., Calisse, P., Crighton, N. H. M., Curran, S. J., Davis, T. M., Dempsey, J. T., Fulton, B., Hidas, M. G., Hill, T., Kedziora-Chudczer, L., Minier, V., Pracy, M. B., Purcell, C., Shobbrook, J., Travouillon, T.
Publikováno v:
Mon.Not.Roy.Astron.Soc.376:1201-1210,2007
We have used the Mopra Telescope to search for glycine and the simple chiral molecule propylene oxide in the Sgr B2 (LMH) and Orion KL, in the 3-mm band. We have not detected either species, but have been able to put sensitive upper limits on the abu
Externí odkaz:
http://arxiv.org/abs/astro-ph/0701866
Publikováno v:
Mon.Not.Roy.Astron.Soc.374:579-589,2007
We have used the Australia Telescope Compact Array to conduct a search for the simplest amino acid, glycine (conformers I and II), and the simple chiral molecule propylene oxide at 3-mm in the Sgr B2 LMH. We searched 15 portions of spectrum between 8
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610273
Publikováno v:
Mon.Not.Roy.Astron.Soc. 360 (2005) 533-545
The class II masers of methanol are associated with the early stages of formation of high-mass stars. Modelling of these dense, dusty environments has demonstrated that pumping by infrared radiation can account for the observed masers. Collisions wit
Externí odkaz:
http://arxiv.org/abs/astro-ph/0504194
Publikováno v:
Astrophys.Space Sci. 295 (2005) 189-196
In studies of the environment of massive young stellar objects, recent progress in both observations and theory allows a unified treatment of data for maser and 'quasi-thermal' lines. Interferometric maser images provide information on the distributi
Externí odkaz:
http://arxiv.org/abs/astro-ph/0409188
Autor:
Ellingsen, S. P., Cragg, D. M., Lovell, J. E. J., Sobolev, A. M., Ramsdale, P. D., Godfrey, P. D.
We have used the NASA Tidbinbilla 70-m antenna to search for emission from the 2(1)-3(0)E 19.9-GHz transition of methanol. The search was targeted towards 22 star formation regions which exhibit maser emission in the 107.0-GHz 3(1)-4(0)A+ methanol tr
Externí odkaz:
http://arxiv.org/abs/astro-ph/0407246