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Cichowolski, S.; Pineault, S.; Gamen, R.; Arnal, E.M.; Suad, L.A.; Ortega, M.E. "Triggered star formation in a molecular shell created by a SNR?" (2014) Monthly Notices of the Royal Astronomical Society. 438(2):1089-1101
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Abstract:

We present a study of a new molecular shell, G 126.1-0.8-14, using available multiwavelength Galactic plane surveys and optical Gemini observations. A well-defined shell-like structure is observed in the CO(1-0) line emission at (l,b) = (126°.1, -0°.8), in the velocity range -10.5 to -15.5 kms-1. The HI emission shows a region of low emissivity inside G 126.1-0.8-14, while radio continuum observations reveal faint non-thermal emission possibly related to this shell. Optical spectra obtained with Gemini South show the existence of B-type stars likely to be associated with G 126.1-0.8-14. An estimate of the stellar wind energy injected by these stars shows that they alone cannot be able to create such a structure. On the other hand, one supernova explosionwould provide enough energy to generate the shell. Using the MSX, IRAS and WISE point source catalogues we have found about 30 young stellar object candidates, whose birth could have been triggered by the expansion of G 126.1-0.8-14. In this context, Sh2-187 could be a consequence of the action on its surroundings of the most massive (and thus most evolve) of the stars formed by the expanding molecular shell. © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.

Registro:

Documento: Artículo
Título:Triggered star formation in a molecular shell created by a SNR?
Autor:Cichowolski, S.; Pineault, S.; Gamen, R.; Arnal, E.M.; Suad, L.A.; Ortega, M.E.
Filiación:Instituto de Astronomía y Física del Espacio (IAFE), CC 67, Suc. 28, 1428 Buenos Aires, Argentina
Département de physique, de génie physique et d'optique, Université Laval, Québec, G1V 0A6, Canada
Centre de recherche en astrophysique du Québec (CRAQ), Canada
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n, 1900 La Plata, Argentina
Instituto de Astrofísica de La Plata (CCT-La Plata, CONICET), Observatorio Astronómico Paseo del Bosque s/n, La Plata, Argentina
Instituto Argentino de Radioastronomía (CCT-La Plata, CONICET), CC 5, 1894 Villa Elisa, Argentina
Palabras clave:HII regions; ISM: kinematics and dynamics; ISM: supernova remnants; Stars: formation; Stars: massive
Año:2014
Volumen:438
Número:2
Página de inicio:1089
Página de fin:1101
DOI: http://dx.doi.org/10.1093/mnras/stt2259
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_v438_n2_p1089_Cichowolski

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Citas:

---------- APA ----------
Cichowolski, S., Pineault, S., Gamen, R., Arnal, E.M., Suad, L.A. & Ortega, M.E. (2014) . Triggered star formation in a molecular shell created by a SNR?. Monthly Notices of the Royal Astronomical Society, 438(2), 1089-1101.
http://dx.doi.org/10.1093/mnras/stt2259
---------- CHICAGO ----------
Cichowolski, S., Pineault, S., Gamen, R., Arnal, E.M., Suad, L.A., Ortega, M.E. "Triggered star formation in a molecular shell created by a SNR?" . Monthly Notices of the Royal Astronomical Society 438, no. 2 (2014) : 1089-1101.
http://dx.doi.org/10.1093/mnras/stt2259
---------- MLA ----------
Cichowolski, S., Pineault, S., Gamen, R., Arnal, E.M., Suad, L.A., Ortega, M.E. "Triggered star formation in a molecular shell created by a SNR?" . Monthly Notices of the Royal Astronomical Society, vol. 438, no. 2, 2014, pp. 1089-1101.
http://dx.doi.org/10.1093/mnras/stt2259
---------- VANCOUVER ----------
Cichowolski, S., Pineault, S., Gamen, R., Arnal, E.M., Suad, L.A., Ortega, M.E. Triggered star formation in a molecular shell created by a SNR?. Mon. Not. R. Astron. Soc. 2014;438(2):1089-1101.
http://dx.doi.org/10.1093/mnras/stt2259