2017AJ....153..234B

Query : 2017AJ....153..234B

2017AJ....153..234B - Astron. J., 153, 234-234 (2017/May-0)

A new stellar atmosphere grid and comparisons with HST/STIS CALSPEC flux distributions.

BOHLIN R.C., MESZAROS S., FLEMING S.W., GORDON K.D., KOEKEMOER A.M. and KOVACS J.

Abstract (from CDS):

The Space Telescope Imaging Spectrograph has measured the spectral energy distributions for several stars of types O, B, A, F, and G. These absolute fluxes from the CALSPEC database are fit with a new spectral grid computed from the ATLAS-APOGEE ATLAS9 model atmosphere database using a chi-square minimization technique in four parameters. The quality of the fits are compared for complete LTE grids by Castelli & Kurucz (CK04) and our new comprehensive LTE grid (BOSZ). For the cooler stars, the fits with the MARCS LTE grid are also evaluated, while the hottest stars are also fit with the NLTE Lanz & Hubeny OB star grids. Unfortunately, these NLTE models do not transition smoothly in the infrared to agree with our new BOSZ LTE grid at the NLTE lower limit of Teff = 15,000 K. The new BOSZ grid is available via the Space Telescope Institute MAST archive and has a much finer sampled IR wavelength scale than CK04, which will facilitate the modeling of stars observed by the James Webb Space Telescope. Our result for the angular diameter of Sirius agrees with the ground-based interferometric value.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): stars: atmospheres - stars: fundamental parameters - techniques: spectroscopic - techniques: spectroscopic

Simbad objects: 37

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Number of rows : 37
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 HD 14943 ** 02 22 54.6750661920 -51 05 31.659759744   6.101 5.898     A5V 50 0
2 * ksi02 Cet * 02 28 09.5570589539 +08 27 36.216809306 4.14 4.25 4.30 4.29 4.34 B9III 352 0
3 UCAC3 125-8171 * 03 32 32.8728703992 -27 51 48.339287532 18.74 18.0893 16.64   17.0383 ~ 40 0
4 BD+52 913 WD* 05 05 30.6180977592 +52 49 51.919301604 10.25 11.44 11.69 11.93 12.108 DA.8 1153 0
5 * lam Lep ** 05 19 34.5223081894 -13 10 36.369844928 3.03 4.04 4.29 4.41 4.69 B0.5V 322 0
6 HD 37962 PM* 05 40 51.9657648277 -31 21 03.986325115   8.50 7.85     G2V 128 0
7 HD 37725 * 05 41 54.3697767432 +29 17 50.954803440   8.12 8.31     A3V 24 0
8 * mu. Col V* 05 45 59.8950238944 -32 18 23.162261796 3.84 4.90 5.18 5.30 5.57 O9.5V 523 0
9 HD 38949 * 05 48 20.0587517352 -24 27 49.853027448   8.37 7.80     G1V 83 0
10 GD 71 WD* 05 52 27.6198591816 +15 53 13.228887444 11.675 12.783 13.032 13.169 13.337 DA1.5 407 0
11 * alf CMa SB* 06 45 08.91728 -16 42 58.0171 -1.51 -1.46 -1.46 -1.46 -1.43 A0mA1Va 1610 0
12 HD 106252 PM* 12 13 29.5095375792 +10 02 29.887248516   8.00   7.0   G0 209 1
13 GD 153 WD* 12 57 02.3224909560 +22 01 52.634778240 11.883 13.060 13.349 13.488 13.669 DA1.2 380 0
14 HD 116405 * 13 22 45.1228533984 +44 42 53.894434752   8.27 8.34     A0V 51 0
15 TYC 4413-304-1 PM* 14 51 57.9795358920 +71 43 17.392919520 12.751 12.84 12.16 12.05 11.313 G0 41 0
16 GSPC P177-D * 15 59 13.5786527568 +47 36 41.906773080   14.17 13.52 13.42   G0 54 0
17 SDSS J161814.23+000008.6 * 16 18 14.2395011136 +00 00 08.608982724   17.24 16.75 16.35 15.93 G0-5 12 1
18 UCAC3 292-117285 * 16 19 46.1029541808 +55 34 17.861479500   17.09 16.23 16.41   G0-5 19 1
19 GSC 02581-02323 * 16 31 33.8123836584 +30 08 46.397382324 13.576 12.972 12.917 12.564 12.212 G2V 106 0
20 BD+60 1753 * 17 24 52.2753625128 +60 25 50.749843296   9.72 9.65     A1V 42 0
21 HD 158485 * 17 26 04.8373251744 +58 39 06.831955296   6.616 6.494     A4V 69 0
22 HD 159222 PM* 17 32 00.9920372760 +34 16 16.133732796 7.38 7.21   6.1   G1V 266 0
23 TYC 4424-1286-1 * 17 32 52.6298776872 +71 04 43.121508384   12.75 12.21     A4V 16 0
24 2MASS J17430448+6655015 Pu* 17 43 04.4856387072 +66 55 01.661508948   13.80 13.525     A5V 26 0
25 HD 163466 * 17 52 25.3741156656 +60 23 46.938537132   7.04 6.85     A2 61 0
26 TYC 4212-455-1 * 17 57 13.2321989328 +67 03 40.756797288   11.91 12.01     A3V 28 0
27 2MASS J17583798+6646522 * 17 58 37.9944074280 +66 46 52.111767864   15.10 13.80     K1.5III 25 0
28 BPS BS 17447-0067 * 18 02 27.1684933179 +60 43 35.590410425   12.017 11.995 12.120   A2V 23 0
29 HD 165459 * 18 02 30.7405607784 +58 37 38.159882076   6.98 6.86   6.70 A1V 54 0
30 TYC 4209-1396-1 * 18 05 29.2757502480 +64 27 52.118903700   12.54 12.74     A4V 19 0
31 TYC 4433-1800-1 * 18 08 34.7360078880 +69 27 28.721915028   12.18 11.69     A3V 39 0
32 TYC 4205-1677-1 * 18 12 09.5673393288 +63 29 42.261965880   11.94 12.01     A3V 25 0
33 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0V 2787 1
34 HD 180609 * 19 12 47.1996312336 +64 10 37.176952476   9.57 9.42     A0V 33 0
35 HD 205905 PM* 21 39 10.1509511673 -27 18 23.662643353   7.36 6.74     G1.5IV-V 107 0
36 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1193 1
37 * 10 Lac ** 22 39 15.6786372 +39 03 00.971152 3.650 4.670 4.880 4.98 5.19 O9V 790 0

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