Portal de Periódicos da CAPES

Molecular line survey of Sagittarius B2(M) from 330 to 355 GHz and comparison with Sagittarius B2(N)

1991; Institute of Physics; Volume: 77; Linguagem: Inglês

10.1086/191603

1538-4365

E. C. Sutton, P. A. Jaminet, W. C. Danchi, Geoffrey A. Blake,

Atomic and Molecular Physics

view Abstract Citations (108) References (33) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Molecular Line Survey of Sagittarius B2(M) from 330 to 355 GHz and Comparison with Sagittarius B2(N) Sutton, E. C. ; Jaminet, P. A. ; Danchi, W. C. ; Blake, Geoffrey A. Abstract A submillimeter survey of Sgr B2 is described in which sufficient spatial resolution permitted the observation of some of the source structure. The position Sgr B2(M) is examined in relation to the submillimeter emission of Sgr B2(N) and previous millimeter observational data of source (M) at a lower spatial resolution. Because the submillimeter observations are more sensitive to core emission, the molecules SO2 and CH3OH tend to dominate the spectrum. The core emission is found to be similar to that of the Orion molecular cloud, and the submillimeter and millimeter lines have high optical depths. The (N) source has a much higher column density than that of (M) except for SO and SO2, and (N) also appears to have a higher excitation which can indicate a core with a higher density. Publication: The Astrophysical Journal Supplement Series Pub Date: October 1991 DOI: 10.1086/191603 Bibcode: 1991ApJS...77..255S Keywords: H Ii Regions; Interstellar Masers; Interstellar Matter; Molecular Spectra; Water Masers; Astronomical Spectroscopy; Emission Spectra; Hydroxyl Emission; Interstellar Chemistry; Molecular Clouds; Sagittarius Constellation; Astrophysics; INTERSTELLAR: ABUNDANCES; INTERSTELLAR: MOLECULES; LINE IDENTIFICATIONS; MASERS; NEBULAE: INDIVIDUAL NAME: SAGITTARIUS B2 full text sources ADS | data products SIMBAD (4)