Bibcode
Rodriguez, L. F.; Roth, M.; Canto, J.; Tapia, M.; Persi, P.; Ferrari-Toniolo, M.
Referencia bibliográfica
Revista Mexicana de Astronomia y Astrofisica, Vol. 12, p. 285-286 (1986)
Fecha de publicación:
2
1986
Número de citas
1
Número de citas referidas
1
Descripción
The faint nebulosity CM24=PP85 listed by
Parsamian and Petrosian (1979) was observed at infrared (1-10 pm) and
radio (6 cm and CO line) wavelengths in the vicinity of the CO "hot
spot" reported by Torrelles et al. (1983). The radio continuum (6 cm)
emission from a spherically symmetrical HIl region was detected with the
Very Large Array. Its position coincides with the brightest part of the
visible nebulosity and a 1-4 pm emission peak. Our infrared maps made at
the Observatorio Astronomico Nacional de San Pedro Martir, show two
additional (1-10 pm) peaks located at distances - 30 arc sec from the
compact HII region, all surrounded by extended near infrared (1-4 pm)
emission. A detailed CO (J=1 0) map of the whole molecular cloud was
also obtained with the University of Texas Millimeter - Wave Telescope.
Our results are interpreted in terms of the recent formation of three
massive stars, one of which, having developed an HII region, is at a
slightly later phase of its evolution. The extended near infrared
emission may arise in a reflection nebula similar to NCC 7538-Irs 9
(Werner et al.,1979); Tokunaga et al.,1981). The details of the present
work will be published at a later date.