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Paron, S.; Ortega, M.E.; Petriella, A.; Rubio, M.; Giacani, E.; Dubner, G. "Study of the dense molecular gas surrounding the 'extended green object' G35.03+0.35" (2012) Monthly Notices of the Royal Astronomical Society. 419(3):2206-2214
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Abstract:

We present the results of a new study of the molecular gas associated with the 'extended green object' (EGO) G35.03+0.35. This object, very likely a massive young stellar object, is embedded in a molecular cloud at the border of an Hii region. The observations were performed with the Atacama Submillimeter Telescope Experiment in the 12CO and 13CO J= 3-2, HCO +J= 4-3 and CS J= 7-6 lines with an angular resolution of about 22arcsec. From the 12CO J= 3-2 line, we discovered outflowing activity of the massive young stellar object. We obtained a total mass and kinetic energy for the outflows of 30 and 3000M ⊙ (kms -1) 2 (6 × 10 46 erg), respectively. We discovered an HCO + and CS clump towards the EGO G35.03+0.35. The detection of these molecular species supports the presence of molecular outflows and a dense molecular envelope with temperatures and densities above 40K and 6 × 10 6cm -3, respectively. Using public near- and mid-infrared and submillimetre data, we investigated the spectral energy distribution confirming that EGO G35.03+0.35 is a massive young stellar object at its earliest evolutionary stage (i.e. a class I young stellar object). By analysing radio-continuum archival data, we found three radio sources towards the object, suggesting the presence of several young stellar objects in the region. Our radio-continuum analysis is consistent with the presence of at least one ultracompact Hii region and a hypercompact Hii region or a constant-velocity ionized wind source. © 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS.

Registro:

Documento: Artículo
Título:Study of the dense molecular gas surrounding the 'extended green object' G35.03+0.35
Autor:Paron, S.; Ortega, M.E.; Petriella, A.; Rubio, M.; Giacani, E.; Dubner, G.
Filiación:Instituto de Astronomía y Física del Espacio (CONICET-UBA), CC 67, Suc. 28, 1428 Buenos Aires, Argentina
FADU-Universidad de Buenos Aires, Ciudad Universitaria, C1428EGA Buenos Aires, Argentina
Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile
Palabras clave:Hii regions; ISM: clouds; ISM: jets and outflows
Año:2012
Volumen:419
Número:3
Página de inicio:2206
Página de fin:2214
DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.19871.x
Título revista:Monthly Notices of the Royal Astronomical Society
Título revista abreviado:Mon. Not. R. Astron. Soc.
ISSN:00358711
CODEN:MNRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v419_n3_p2206_Paron

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Citas:

---------- APA ----------
Paron, S., Ortega, M.E., Petriella, A., Rubio, M., Giacani, E. & Dubner, G. (2012) . Study of the dense molecular gas surrounding the 'extended green object' G35.03+0.35. Monthly Notices of the Royal Astronomical Society, 419(3), 2206-2214.
http://dx.doi.org/10.1111/j.1365-2966.2011.19871.x
---------- CHICAGO ----------
Paron, S., Ortega, M.E., Petriella, A., Rubio, M., Giacani, E., Dubner, G. "Study of the dense molecular gas surrounding the 'extended green object' G35.03+0.35" . Monthly Notices of the Royal Astronomical Society 419, no. 3 (2012) : 2206-2214.
http://dx.doi.org/10.1111/j.1365-2966.2011.19871.x
---------- MLA ----------
Paron, S., Ortega, M.E., Petriella, A., Rubio, M., Giacani, E., Dubner, G. "Study of the dense molecular gas surrounding the 'extended green object' G35.03+0.35" . Monthly Notices of the Royal Astronomical Society, vol. 419, no. 3, 2012, pp. 2206-2214.
http://dx.doi.org/10.1111/j.1365-2966.2011.19871.x
---------- VANCOUVER ----------
Paron, S., Ortega, M.E., Petriella, A., Rubio, M., Giacani, E., Dubner, G. Study of the dense molecular gas surrounding the 'extended green object' G35.03+0.35. Mon. Not. R. Astron. Soc. 2012;419(3):2206-2214.
http://dx.doi.org/10.1111/j.1365-2966.2011.19871.x