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http://hdl.handle.net/20.500.12386/32790
Titolo: | VLBI maser kinematics in high-mass SFRs: G23.01-0.41 | Autori: | SANNA, ALBERTO MOSCADELLI, Luca CESARONI, Riccardo GODDI, CIRIACO |
Data pubblicazione: | 2012 | Titolo del volume in cui è pubblicato il poster: | Cosmic Masers - from OH to H0 | Curatore/i del volume in cui è pubblicato il contributo: | Booth, R.S.; Humphreys, E.M.L.; Vilemmings, W.H.T. | Serie: | PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION | Numero: | vol. 8, S287 | Da pagina:: | 396 | Abstract: | Very Long Baseline Interferometry studies of different maser species observed at multiple epochs allow complementary measurements of the 3-dimensional velocity field of gas close (<~ 10<SUP>3</SUP> AU) to massive young stellar objects. Here, we review our recent results toward the high-mass star-forming region G23.01-0.41, where all the strongest molecular maser transitions known to date cluster within 2000 AU from the center of an hot molecular core and are associated with a so called extended green object. The overall maser kinematics reveals a common outflowing motion from a central object; the details of the spatial distribution and velocity field of each maser species hint at the presence of different dynamical structures: a collimated jet, a wide-angle wind, and a flattened rotating core. We further compare the simultaneous presence of maser emission from different molecular species with a recent evolutionary sequence for masers associated with massive young stellar objects. | Titolo del convegno: | Cosmic Masers - from OH to H0 | Luogo del convegno: | Stellenbosch, South Africa | Periodo del convegno: | 29 January- 3 February, 2012 | URI: | http://hdl.handle.net/20.500.12386/32790 | URL: | https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/vlbi-maser-kinematics-in-highmass-sfrs-g2301041/55D9A88222BAF4F1313851D214AF55C0 https://api.elsevier.com/content/abstract/scopus_id/84864460075 |
ISSN: | 1743-9213 | ISBN: | 9781107032842 | DOI: | 10.1017/S1743921312007363 | Bibcode ADS: | 2012IAUS..287..396S | Fulltext: | open |
È visualizzato nelle collezioni: | 3.01 Contributi in Atti di convegno |
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