New sub-millimetre HCN lasers in carbon-rich evolved stars

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Volume 696 (April 2025)

A&A, 696 (2025) A60

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Table A.1

Herschel/HIFI observations.

Obs. date	Herschel	Line	Obs. mode
(yyyy-mm-dd)	OBSID	(GHz)
IRC+10216

2010-05-12	1342196473	805	Spectral scan
2011-06-09	1342222323	805*	Single point
2012-05-03	1342245305	805*	Single point
2012-10-24	1342254408	805*	Single point
2012-11-30	1342256274	805*	Single point
2013-04-29	1342271240	805*	Single point
2010-05-13	1342196518	891, 894	Spectral scan
2011-06-09	1342222292	891^†	Single point
2012-05-04	1342245342	891^†	Single point
2012-10-26	1342253951	891^†	Single point
2012-11-30	1342256278	891^†	Single point
2013-04-28	1342271201	891^†	Single point
2011-06-09	1342222297	894*	Single point
2012-05-04	1342245347	894*	Single point
2012-10-26	1342253956	894*	Single point
2012-11-30	1342256283	894*	Single point
2013-04-28	1342271206	894*	Single point
2010-05-16	1342196590	964,968,1055	Spectral scan
2011-06-09	1342222351	964	Single point
2012-05-04	1342245359	964	Single point
2012-10-24	1342254419	964	Single point
2012-11-30	1342256285	964	Single point
2013-04-29	1342271230	964	Single point
2011-06-09	1342222352	968	Single point
2012-05-04	1342245360	968	Single point
2012-10-24	1342254420	968	Single point
2012-11-30	1342256286	968	Single point
2013-04-29	1342271231	968	Single point
2010-05-11	1342196423	1055	Spectral scan
2011-06-09	1342222353	1055	Single point
2012-05-04	1342245361	1055	Single point
2012-10-24	1342254421	1055	Single point
2012-11-30	1342256287	1055	Single point
2013-04-29	1342271232	1055	Single point

CIT 6

2012-06-16	1342247079	805	Spectral scan
2012-05-04	1342245341	891, 894	Spectral scan
2012-05-04	1342245367	964, 968	Spectral scan
2012-05-04	1342245374	1055	Spectral scan

Y CVn

2012-06-16	1342247080	805	Spectral scan
2012-06-14	1342247025	891,894	Spectral scan
2012-06-15	1342247044	964,968	Spectral scan
2012-05-18	1342246497	1055	Spectral scan

S Cep

2012-05-23	1342246032	805	Spectral scan
2012-05-24	1342246045	891,894	Spectral scan
2012-05-24	1342246330	964,968	Spectral scan
2012-05-24	1342246338	1055	Spectral scan

IRC+50096

2012-08-25	1342250216	805	Spectral scan
2012-08-11	1342249438	891,894	Spectral scan
2012-08-16	1342249614	964,968	Spectral scan
2012-08-25	1342250210	1055	Spectral scan

V Cyg

2012-05-23	1342246035	805	Spectral scan
2012-05-24	1342246049	891,894	Spectral scan
2012-05-03	1342245331	964,968	Spectral scan
2012-06-21	1342247175	1055	Spectral scan

CRL 3068

2012-06-21	1342247178	805	Spectral scan
2012-05-24	1342246047	891,894	Spectral scan
2012-05-31	1342246518	964,968	Spectral scan
2012-06-21	1342247176	1055	Spectral scan

II Lup

2012-09-12	1342251014	805	Spectral scan
2012-09-18	1342251111	891, 894	Spectral scan
2012-09-07	1342250707	964,968	Spectral scan
2012-09-21	1342251491	1055	Spectral scan

Notes. The signal recorded in the other sideband is marked by a star. The 891 GHz laser spectra of IRC+10216 indicated by a dagger exhibited contamination from ¹³CO (J = 8–7) emission in the other sideband. For IRC+10216, the data processed by pipeline were used, while for the other six stars, the Highly Processed Data Product (HPDP) with improved baselines were utilised.

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