Systematic trend of water vapour absorption in red giant atmospheres revealed by high resolution TEXES 12 μm spectra

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Volume 573 (January 2015)

A&A, 573 (2015) A28

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Table 1

K, N magnitudes, parallaxes, distances, and observed signal-to-noise ratios (per spectral pixel) of the programme stars.

Name	HR	HD	RA (J2000)	Dec (J2000)	Spectral	K	N	π ^c	Distance, 1 /π	S / N
			(h:m:s)	(°:′:″)	type^a	mag^b		[mas]	[pc]	pixel^-1

β Peg	8775	217906	23:03:46.457	+28:04:58.03	M2.5 II	−2.2	−2.5	16.64 ± 0.15	60.1 ± 0.5	140
δ Vir	4910	112300	12:55:36.209	+03:23:50.89	M3.0 III	−1.2	−1.5	16.44 ± 0.22	60.8 ± 0.8	110
δ Oph	6056	146051	16:14:20.739	−03:41:39.56	M0.5 III	−1.2	−1.4	19.06 ± 0.16	52.5 ± 0.4	90
μ UMa	4069	89758	10:22:19.740	+41:29:58.27	M0.0 III	−0.9	−1.0	14.16 ± 0.54	70.6 ± 2.7	100
α Lyn	3705	80493	09:21:03.301	+34:23:33.22	K7.0 III	−0.6	−0.8	16.06 ± 0.17	62.3 ± 0.7	100
α Tau¹	1457	29139	04:35:55.239	+16:30:33.49	K5.0 III	−2.8	−3.1	48.94 ± 0.77	20.4 ± 0.3	90
α Hya²	3748	81797	09:27:35.243	−08:39:30.96	K3.0 II	−1.2	−1.5	18.09 ± 0.18	55.3 ± 0.6	120
α Boo³	5340	124897	14:15:39.672	+19:10:56.67	K1.5 III	−3.0	−3.2	88.83 ± 0.54	11.3 ± 0.1	290
α Ser⁴	5854	140573	15:44:16.074	+06:25:32.26	K2.0 III	0.1	−0.0	44.10 ± 0.19	22.7 ± 0.1	70
β Gem⁵	2990	62509	07:45:18.950	+28:01:34.31	K0.0 III	−1.1	−1.2	96.54 ± 0.27	10.4 ± 0.1	80

Notes.

⁽¹⁾

Aldebaran;

⁽²⁾

Alphard;

⁽³⁾

Arcturus;

⁽⁴⁾

Unukalhai;

⁽⁵⁾

Pollux.

Reference.

^(a)

Mozurkewich et al. (2003);

^(b)

Johnson photometric K magnitudes from SIMBAD (http://simbad.u-strasbg.fr/) and N magnitudes from IRAS PSC (Joint Iras Science 1994) with colour corrections of 1.41 (see http://lambda.gsfc.nasa.gov/product/iras/colorcorr.cfm);

^(c)

van Leeuwen (2007).

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