A 3-mm molecular line study of the Central Molecular Zone of the Galaxy

Autor:	Vicki Lowe, Paul Jones, Michael G. Burton
Rok vydání:	2008
Předmět:	Physics Astrochemistry Molecular line Space and Planetary Science Astronomy Astronomy and Astrophysics Central Molecular Zone Astrophysics Galaxy
Zdroj:	Proceedings of the International Astronomical Union. 4:257-262
ISSN:	1743-9221 1743-9213
DOI:	10.1017/s1743921308021704
Popis:	We are studying the Central Molecular Zone (CMZ) in the inner few degrees around the Galactic Centre, by mapping multiple 3-mm molecular lines, with the 22-m Mopra telescope. During 2006, we covered a 5 × 5 arcmin2 area of the Sagittarius B2 molecular cloud complex (Jones et al. 2008). We find substantial differences in chemical and physical conditions within the complex. We show some results here of Principal Component Analysis (PCA) of line features in this Sgr B2 area. During 2007 we covered the larger region of longitude −0.2 to 0.9 deg. and latitude -0.20 to 0.12 deg., including Sgr A and Sgr B2, in the frequency range 85.3 to 91.3 GHz. This includes lines of C3H2, CH3CCH, HOCO+, SO, H13CN, H13CO+, SO, H13NC, C2H, HNCO, HCN, HCO+, HNC, HC3N, 13CS and N2H+.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::07073a253ad93cbb754137e76768e134 https://doi.org/10.1017/s1743921308021704 Zobrazit plný text záznamu Plný text ve formátu PDF