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 4

Equivalent widths of water lines in mÅ as observed and the equivalent widths from synthetic spectra for the stars calculated for standard marcs models.

			808.632 cm^-1			814.675 cm^-1			815.300 cm^-1
HR	Name	T_eff	W_mod	W_obs	log (W_obs/λ)	W_mod	W_obs	log (W_obs/λ)	W_mod	W_obs	log (W_obs/λ)

		[K]	[mÅ]	[mÅ]		[mÅ]	[mÅ]		[mÅ]	[mÅ]

HR8775	β Peg	3448 ± 42	506	–	–	598	648	−5.28	511	–	–
HR4910	δ Vir	3602 ± 44	324	612	−5.31	359	301	−5.61	301	873	−5.15
HR6056	δ Oph	3721 ± 47	211	444	−5.45	216	301	−5.61	135	858	−5.16
HR4069	μ UMa	3793 ± 47	143	459	−5.44	136	331	−5.57	135	752	−5.21
HR3705	α Lyn	3836 ± 47	114	321	−5.59	105	–	–	94.8	617	−5.30
HR1457	α Tau	3871 ± 48	106	–	–	101	–	–	91.8	662	−5.27
HR3748	α Hya	4060 ± 60	23.9	–	–	22.2	–	–	18.1	141	−5.94
HR5340	α Boo	4226 ± 53	6.40	113	−6.04	4.52	150	−5.91	4.36	196	−5.79
HR5854	α Ser	4558 ± 56	–	–	–	–	0.00	−∞	0.00	0.00	0.00
HR2990	β Gem	4858 ± 60	–	0.00	−∞	–	0.00	−∞	0.00	0.00	0.00

			815.900 cm^-1			816.450 cm^-1			816.687 cm^-1

HR8775	β Peg	3448 ± 42	713	826	−5.17	302	765	−5.20	703	1290	−4.98
HR4910	δ Vir	3602 ± 44	446	555	−5.34	150	495	−5.39	455	1012	−5.08
HR6056	δ Oph	3721 ± 47	285	466	−5.42	76.0	420	−5.46	312	884	−5.14
HR4069	μ UMa	3793 ± 47	186	421	−5.46	38.7	285	−5.63	221	930	−5.12
HR3705	α Lyn	3836 ± 47	147	481	−5.40	27.7	255	−5.68	186	705	−5.24
HR1457	α Tau	3871 ± 48	140	421	−5.46	26.4	255	−5.68	173	750	−5.21
HR3748	α Hya	4060 ± 60	32.2	165	−5.87	5.10	–	–	43.5	225	−5.74
HR5340	α Boo	4226 ± 53	6.62	146	−5.92	–	67.1	−6.25	11.0	315	−5.59
HR5854	α Ser	4558 ± 56	–	0.00	−∞	–	0.00	−∞	–	0.00	−∞
HR2990	β Gem	4858 ± 60	–	0.00	−∞	–	0.00	−∞	–	0.00	−∞

			817.157 cm ^-1			817.209 cm^-1			818.425 cm^-1

HR8775	β Peg	3448 ± 42	612	1228	−5.00	610	1138	−5.03	1025	1612	−4.88
HR4910	δ Vir	3602 ± 44	395	1063	−5.06	356	464	−5.42	694	1269	−4.98
HR6056	δ Oph	3721 ± 47	263	764	−5.20	207	374	−5.51	492	1120	−5.04
HR4069	μ UMa	3793 ± 47	184	884	−5.14	126	389	−5.50	365	985	−5.09
HR3705	α Lyn	3836 ± 47	150	659	−5.27	95.8	299	−5.61	311	1015	−5.08
HR1457	α Tau	3871 ± 48	141	524	−5.37	91.2	225	−5.74	289	836	−5.16
HR3748	α Hya	4060 ± 60	30.9	–	–	19.4	–	–	75.6	343	−5.55
HR5340	α Boo	4226 ± 53	8.39	240	−5.71	3.64	135	−5.96	20.6	0.00	−5.51
HR5854	α Ser	4558 ± 56	–	0.00	−∞	–	0.00	−∞	2.65	0.00	−∞
HR2990	β Gem	4858 ± 60	–	0.00	−∞	–	0.00	−∞	–	0.00	−∞

			819.046 cm ^-1			819.932 cm^-1			820.583 cm^-1

HR8775	β Peg	3448 ± 42	420	655	−5.27	505	1562	−4.89	833	–	–
HR4910	δ Vir	3602 ± 44	256	537	−5.36	338	1071	−5.06	527	787	−5.19
HR6056	δ Oph	3721 ± 47	158	313	−5.59	236	684	−5.25	342	683	−5.25
HR4069	μ UMa	3793 ± 47	102	343	−5.55	170	684	−5.25	229	564	−5.33
HR3705	α Lyn	3836 ± 47	79.5	–	–	141	640	−5.28	184	549	−5.35
HR1457	α Tau	3871 ± 48	75.6	209	−5.77	131	580	−5.32	173	–	–
HR3748	α Hya	4060 ± 60	16.2	–	–	31.5	–	–	39.4	–	–
HR5340	α Boo	4226 ± 53	4.37	118	−6.02	8.43	149	−5.91	10.7	178	−5.83
HR5854	α Ser	4558 ± 56	–	–	–	–	–	–	–	–	–
HR2990	β Gem	4858 ± 60	–	0.00	−∞	–	0.00	−∞	–	0.00	−∞

Notes. A measure of the lines’ observational line strength calculated as log W_obs/λ is also given. W_obs is the observed equivalent width and λ the wavelength.

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