Upper limits to interstellar NH+ and para-NH2− abundances - Herschel-HIFI observations towards Sgr B2 (M) and G10.6−0.4 (W31C)

C. M. Persson; M. Hajigholi; G. E. Hassel; A. O. H. Olofsson; J. H. Black; E. Herbst; H. S. P. Müller; J. Cernicharo; E. S. Wirström; M. Olberg; Å. Hjalmarson; D. C. Lis; H. M. Cuppen; M. Gerin; K. M. Menten

doi:10.1051/0004-6361/201423748

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Volume 567 (July 2014)

A&A, 567 (2014) A130

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Table D.4

Herschel OBSID’s of the observed transitions analysed in this paper.

Source	Species	Frequency	Band	LO-setting^a	Date	OBSID
		(GHz)

G10.6-0.4	NH⁺	1 012.540	4a	A	2012-04-10	1342244052
				B		1342244053
				C		1342244054
		1 019.210	4a	A	2012-04-10	1342244055
				B		1342244056
				C		1342244057
	p-NH	933.855	3b	A	2012-09-18	1342251113
				B		1342251114
				C		1342251115
Sgr B2 (M)	NH⁺	1 012.540	4a	SScan	2012-04-04	1342243701
		1 019.210	4a	SScan	2012-04-04	1342243702
	p-NH	933.855	3b	SScan	2012-09-18	1342251112

Notes.

^(a)

Three different frequency settings of the LO were performed towards G10.6−0.4, with approximately 15 km s^-1 between each setting in order to determine the sideband origin of the signals. Towards Sgr B2 (M) we used the spectral scan mode with 8 different LO settings.

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