2011A&A...528A..43L

Query : 2011A&A...528A..43L

2011A&A...528A..43L - Astronomy and Astrophysics, volume 528A43-43 (2011/4-1)

A study of NIR atmospheric properties at paranal observatory.

LOMBARDI G., MASON E., LIDMAN C., JAUNSEN A.O. and SMETTE A.

Abstract (from CDS):

In order to maximize the scientific return of the telescopes located at the Paranal Observatory, we analyse the properties of the atmosphere above Paranal in the near-infrared (NIR). We estimate atmospheric extinction in the spectral range 1.10-2.30µm (J, Js, H, and Ks) using standard stars that were observed during photometric and clear nights with ISAAC on the Very Large Telescope UT1 between 2000 and 2004. We have built a database consisting of hundreds of observations, which allows us to examine how extinction varies with airmass and the column density of water vapour. In addition, we use theoretical models of the atmosphere to estimate Rayleigh scattering and molecular absorption in order to quantify their fractional contribution to the total extinction in each filter. Finally, we have observed 8 bright red standard stars to evaluate filter color terms. We find that extinction coefficients are <0.1mag/airmass in all the considered bands. The extinction coefficient in the J-band strongly depends on the column density of water vapour. Molecular absorption dominates the extinction in J, H and Ks, while Rayleigh scattering contributes most to the extinction in Js. We have found negligible color terms for J, H and Ks and a non-negligible color term for Js.

Abstract Copyright: ∼

Journal keyword(s): atmospheric effects - Site testing

Simbad objects: 50

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Number of rows : 50
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 FS 102 * 00 24 28.4649403728 +07 49 00.528698064   15.07 13.90     G3 10 0
2 TYC 7525-956-1 * 00 33 15.0290471256 -39 24 10.372955760   12.17 11.55     ~ 12 0
3 TYC 4683-1192-1 * 01 03 15.9692183904 -04 20 49.039889640   12.76 11.97     ~ 8 0
4 GSPC P530-D * 02 33 32.2308000024 +06 25 36.943952952           ~ 9 0
5 GSPC S301-D * 03 26 54.0 -39 50 38           ~ 16 0
6 FS 110 * 03 41 02.4 +06 56 13   13.90 13.20     G5 13 0
7 2MASS J04181893-6927346 * 04 18 18.9429767005 -69 27 34.817025027           ~ 12 0
8 TYC 7052-1131-1 * 04 49 54.2419452720 -35 11 13.828816680   12.74 12.54     ~ 6 0
9 GSPC S363-D * 05 36 44.9 -34 46 39           ~ 6 0
10 GSPC S840-F * 05 42 32.2 +00 09 04           ~ 9 0
11 GSPC S842-E * 06 22 43.7 -00 36 30           ~ 5 0
12 GSPC S121-E * 06 29 29.1119772816 -59 39 30.728491596   13.666 13.135 13.277   ~ 12 0
13 2MASS J06423635-4509068 * 06 42 36.3527300376 -45 09 06.731822313   13.452 12.867     ~ 5 0
14 GSPC S427-D * 06 59 45.6 -30 13 44           ~ 5 0
15 GSPC S209-D * 08 01 15.4 -50 19 33           ~ 5 0
16 UCAC2 15004930 * 08 25 35.5306339200 -39 05 56.513482404 13.78 13.63 12.97     ~ 7 0
17 GSPC S495-E * 08 27 12.5 -25 08 01           ~ 4 0
18 GSPC P545-C * 08 29 25.1200498584 +05 56 08.395186416           ~ 11 0
19 GSPC S705-D V* 08 36 12.6366920964 -10 13 37.044285705           ~ 5 0
20 GSPC S165-E * 08 54 21.8 -54 48 08           ~ 7 0
21 GSPC S372-S * 09 15 50.6 -36 32 34           ~ 6 0
22 TYC 5478-859-1 * 09 48 56.4041233896 -10 30 32.386593060   12.79 11.70     ~ 6 0
23 GSPC P550-C * 10 33 51.9 +04 49 05           ~ 11 0
24 GSPC S264-D * 10 47 24.1 -44 34 05           ~ 11 0
25 GSPC S217-D * 12 01 45.1561262376 -50 03 10.576885464           ~ 8 0
26 GSPC S 64-F * 12 03 30.2 -69 04 57           ~ 6 0
27 FS 132 * 12 21 39.2798147352 -00 07 12.151421076   13.88 13.33     G1 19 0
28 [JHR80] D-9 * 12 31 16.7 -63 40 11           ~ 5 0
29 [JHR80] D-34 * 12 31 23.6 -63 46 45           ~ 5 0
30 [JHR80] D-12 * 12 31 30.0 -63 42 41           M3 6 0
31 [JHR80] D-23 * 12 31 31.3 -63 43 45           G8 3 0
32 [JHR80] D-14 * 12 31 39.7 -63 47 29           K1 3 0
33 [JHR80] D-16 * 12 31 57.8 -63 42 22           M3 4 0
34 [JHR80] D-20 * 12 32 04.0 -63 43 47           K5 4 0
35 [JHR80] D-21 * 12 32 11.0 -63 43 17           ~ 5 0
36 GSPC S791-C * 13 17 29.6 -05 32 37           ~ 14 0
37 GSPC P499-E * 14 07 34.0 +12 23 51           ~ 3 0
38 GSC 04985-00648 * 14 40 57.9502640472 -00 27 46.147456548   14.04 13.32 13.29   F8 16 0
39 GSPC S273-E * 14 56 52.0 -44 49 15           ~ 15 0
40 FS 137 * 16 26 42.8 +05 52 20   13.88 13.34     G1 21 0
41 GSC 02581-02323 * 16 31 33.8123836584 +30 08 46.397382324 13.576 12.972 12.917 12.564 12.212 G2V 106 0
42 GSPC S279-F * 17 48 22.7 -45 25 45           ~ 29 0
43 GSPC S 71-D * 18 28 09.1 -69 26 03           ~ 9 0
44 TYC 5136-32-1 * 19 01 55.4136621840 -04 29 11.996386044   12.68 12.85     ~ 10 0
45 GSPC S234-E * 20 31 20.5 -49 38 57           ~ 17 0
46 UCAC4 425-124910 * 20 41 05.4335149910 -05 03 43.552736127   13.326 12.717 12.633   ~ 13 0
47 GSPC P576-F * 20 52 47.3566923504 +06 40 04.413284940           ~ 8 0
48 2MASS J22020572-0106009 * 22 02 05.7275675328 -01 06 01.110703896           ~ 9 0
49 [PMK98] 9187 * 23 23 34.3305700512 -15 21 09.418672764           ~ 7 0
50 GSPC P290-D * 23 30 33.5 +38 18 57           ~ 8 0

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