Molecfit: A general tool for telluric absorption correction - II. Quantitative evaluation on ESO-VLT/X-Shooterspectra

W. Kausch; S. Noll; A. Smette; S. Kimeswenger; M. Barden; C. Szyszka; A. M. Jones; H. Sana; H. Horst; F. Kerber

doi:10.1051/0004-6361/201423909

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Volume 576 (April 2015)

A&A, 576 (2015) A78

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Table 2

X-Shooter NIR-arm data set used for the detailed tests (see also Table 1).

	Science observations			Telluric standard stars
#^a	Object	Airmass	Obs. date t_SCI	Star	Airmass	Obs. date t_TSS	Δt_obs^b [min]

1	PKS 1934-63	1.69	2011-07-01T01:57:23	–	–	–	–
2	GRB 130606A	1.715	2013-06-07T04:09:16	–	–	–	–

3	V921-Sco	1.109	2010-03-10T09:01:02	Hip084409	1.058	2010-03-10T09:42:39	42
4	NGC 5812	1.06	2010-03-13T08:57:03	Hip073345	1.128	2010-03-13T08:48:11	9
5	HE 1331-0247	1.075	2010-03-24T06:10:55	Hip085195	1.152	2010-03-24T07:54:29	104
6	IC1266	1.222	2010-07-05T05:54:38	Hip085885	1.248	2010-07-05T06:07:41	13

Notes.

^(a)

Objects #1 and #2 are data with low S/N used for tests on the reliability of molecfit when applied to such data. #3 through #6 are used for a detailed comparison with the classical method.

^(b)

Approximate time between TSS and science target observations (Δt_obs = | _SCI − t_TSS |).

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