2005A&A...442..281K


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST01:06:11

2005A&A...442..281K - Astronomy and Astrophysics, volume 442, 281-308 (2005/10-4)

Broad-band photometric colors and effective temperature calibrations for late-type giants. I. Z=0.02.

KUCINSKAS A., HAUSCHILDT P.H., LUDWIG H.-G., BROTT I., VANSEVICIUS V., LINDEGREN L., TANABE T. and ALLARD F.

Abstract (from CDS):

We present new synthetic broad-band photometric colors for late-type giants based on synthetic spectra calculated with the PHOENIX model atmosphere code. The grid covers effective temperatures Teff=3000...5000K, gravities logg=-0.5...+3.5, and metallicities [M/H]=+0.5...-4.0. We show that individual broad-band photometric colors are strongly affected by model parameters such as molecular opacities, gravity, microturbulent velocity, and stellar mass. Our exploratory 3D modeling of a prototypical late-type giant shows that convection has a noticeable effect on the photometric colors too, as it alters significantly both the vertical and horizontal thermal structures in the outer atmosphere. The differences between colors calculated with full 3D hydrodynamical and 1D model atmospheres are significant (e.g., Δ(V-K)∼0.2mag), translating into offsets in effective temperature of up to ∼70K. For a sample of 74 late-type giants in the Solar neighborhood, with interferometric effective temperatures and broad-band photometry available in the literature, we compare observed colors with a new PHOENIX grid of synthetic photometric colors, as well as with photometric colors calculated with the MARCS and ATLAS model atmosphere codes. We find good agreement of the new synthetic colors with observations and published Teff-color and color-color relations, especially in the Teff-(V-K), Teff-(J-K) and (J-K)-(V-K) planes. Deviations from the observed trends in the Teff-color planes are generally within ±100K for Teff=3500 to 4800K. Synthetic colors calculated with different stellar atmosphere models agree to ±100K, within a large range of effective temperatures and gravities. The comparison of the observed and synthetic spectra of late-type giants shows that discrepancies result from the differences both in the strengths of various spectral lines/bands (especially those of molecular bands, such as TiO, H2O, CO) and the continuum level. Finally, we derive several new Teff-logg-color relations for late-type giants at solar-metallicity (valid for Teff=3500 to 4800K), based both on the observed effective temperatures and colors of the nearby giants, and synthetic colors produced with PHOENIX, MARCS and ATLAS model atmospheres.

Abstract Copyright:

Journal keyword(s): stars: atmospheres - stars: late-type - stars: fundamental parameters - techniques: photometric - hydrodynamics

VizieR on-line data: <Available at CDS (J/A+A/442/281): table2.dat>

CDS comments: In table 3 * rho Aur is a misprint for * rho Boo (HD 127665)

Simbad objects: 80

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Number of rows : 80

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 1632 * 00 20 45.5171839083 +32 54 40.272075921   7.381 5.794     K5III 33 0
2 HD 5316 V* 00 55 14.6736420889 +24 33 25.432409404   7.770 6.240     M4III 43 0
3 V* WW Psc LP* 00 59 49.6869701253 +06 28 59.612788743 9.800 7.810 6.140     M2.5III 64 0
4 * bet And PM* 01 09 43.92388 +35 37 14.0075 5.58 3.62 2.05 0.81 -0.19 M0+IIIa 533 0
5 * chi Psc * 01 11 27.2187720 +21 02 04.740561   5.679 4.658     G8.5III 112 0
6 * l Psc PM* 01 21 07.3725839920 +28 44 17.553616356   6.630 5.223     K5III 37 0
7 HD 9640 PM* 01 34 49.0655505966 +18 27 37.851908279   7.435 5.903     M2III 33 0
8 HD 11928 PM* 01 57 43.7439798824 +27 48 15.764832412   7.402 5.850     M2III 29 0
9 * alf Ari PM* 02 07 10.40570 +23 27 44.7032 4.29 3.17 2.01 1.15 0.54 K2-IIIbCa-1 604 1
10 * 15 Ari LP* 02 10 37.5971025341 +19 30 01.206684019   7.309 5.688     M3-IIIab 65 0
11 * 14 Tri SB* 02 32 06.1696751070 +36 08 50.179895097   6.627 5.144     K5III 79 0
12 * rho02 Ari LP* 02 55 48.4979998 +18 19 53.902936 8.56 7.44 5.93 3.51 1.34 M6-III: 212 0
13 * 24 Per * 02 59 03.6763920773 +35 10 59.286480336 7.460 6.170 4.930     K2III 115 0
14 * alf Cet LP? 03 02 16.77307 +04 05 23.0596 6.10 4.17 2.53 1.18 0.02 M1.5IIIa 439 0
15 * 54 Per * 04 20 24.6388546231 +34 34 00.203335487   5.867 4.929     G8+IIIb 130 0
16 * eps Tau ** 04 28 36.9988174 +19 10 49.544603 5.42 4.54 3.53     G9.5IIICN0.5 543 1
17 * alf Tau LP? 04 35 55.23907 +16 30 33.4885 4.32 2.40 0.86 -0.37 -1.31 K5+III 1178 1
18 * 1 Aur PM* 04 49 54.6394565 +37 29 17.793572   6.312 4.867     K3+III 92 0
19 * 2 Aur * 04 52 37.9809748976 +36 42 11.478901229   6.164 4.779     K3-IIIBa0.4 131 0
20 HD 33463 V* 05 11 38.3113734491 +29 54 12.834005597   8.139 6.423     M2III 27 0
21 * n Tau PM* 05 19 16.6057541396 +22 05 47.432233812   5.894 4.948     G8III 102 0
22 * tau Aur * 05 49 10.4382558 +39 10 51.862703 6.160 5.450 4.500 3.80 3.31 G8IIIbFe-1 138 0
23 * nu. Aur * 05 51 29.3717403689 +39 08 54.596979607 6.160 5.090 3.950 3.15 2.59 K0.5IIICN0.5 188 0
24 HD 42471 * 06 12 20.1253086146 +32 41 36.168215848   7.409 5.769     M1III 28 0
25 * kap Aur PM* 06 15 22.6890616 +29 29 53.076043 6.17 5.36 4.35 3.55 3.01 G8.5IIIb 199 0
26 * ome Gem Ce* 07 02 24.7802014306 +24 12 55.607808445   6.136 5.181     G5IIa 111 0
27 * 63 Aur * 07 11 39.3260802974 +39 19 13.984403315   6.353 4.886     K4III 101 0
28 * 66 Aur * 07 24 08.4667871406 +40 40 20.598043662   6.434 5.188     K0.5IIIa 96 0
29 * f Gem ** 07 39 28.5933520383 +17 40 28.271662888 8.53 6.61 5.05     K5.5III 75 0
30 * bet Gem PM* 07 45 18.94987 +28 01 34.3160 3.00 2.14 1.14 0.39 -0.11 K0IIIb 1046 1
31 V* RS Cnc S* 09 10 38.7978379 +30 57 47.295961 8.65 7.62 5.95 3.06 0.73 M6S 295 0
32 * alf Lyn PM* 09 21 03.3007431 +34 23 33.224546 6.63 4.69 3.14 1.91 1.01 K6III 196 0
33 * alf Hya * 09 27 35.24270 -08 39 30.9583 5.14 3.42 1.97 0.93 0.16 K3IIIa 406 0
34 * pi. Leo V* 10 00 12.8058902 +08 02 39.203224 8.22 6.30 4.70 3.27 2.19 M2-III 138 0
35 * 31 Leo PM* 10 07 54.2705662 +09 59 51.023021 7.57 5.82 4.38 3.26 2.49 K3.5IIIbFe-1: 127 0
36 * e Leo * 11 30 18.8919616628 -03 00 12.571219475 8.14 6.31 4.77     K3+IIIFe-0.5 123 0
37 V* BK Vir AB* 12 30 21.0150535628 +04 24 59.159360514 9.60 8.82 7.28     M7-III: 130 0
38 * del Vir RG* 12 55 36.2086058 +03 23 50.893225 6.76 4.97 3.38 1.86 0.53 M3+III 256 0
39 V* SW Vir AB* 13 14 04.3908742003 -02 48 25.155302846 9.24 8.52 6.85     M7III: 245 0
40 * m Vir PM* 13 41 36.7696829399 -08 42 10.733953564 8.59 6.64 5.01     M1+III 104 0
41 HD 120819 PM* 13 51 09.2154966597 +34 39 51.830788149 9.45 7.49 5.87     M2III 37 0
42 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2133 0
43 V* RX Boo AB* 14 24 11.6240733185 +25 42 13.381760051   9.23 8.60     M7.5-M8 417 0
44 * rho Boo PM* 14 31 49.7896173 +30 22 17.178087 6.33 4.89 3.59 2.67 2.02 K3-III 245 0
45 HD 130084 PM* 14 45 13.7120499085 +32 47 18.041525837 9.76 7.86 6.28     M1III 39 0
46 * bet UMi V* 14 50 42.32580 +74 09 19.8142 5.32 3.55 2.08 0.97 0.21 K4-III 302 0
47 * nu. Lib * 15 06 37.5976214726 -16 15 24.559861419 8.70 6.78 5.20     K5-III 88 0
48 * b Boo SB* 15 08 23.7824071325 +26 18 04.146443670   6.921 5.669     K2III 49 0
49 * del Boo PM* 15 15 30.1629518 +33 18 53.392558 5.12 4.44 3.49 2.76 2.25 G8IIIFe-1 358 0
50 * omi CrB PM* 15 20 08.5587408139 +29 36 58.343581022 7.30 6.53 5.51     K0III 131 1
51 HD 137853 SB* 15 27 38.8745634786 +25 06 05.839823151   7.64 6.02     M1III 29 0
52 * tau04 Ser LP* 15 36 28.1823639850 +15 06 05.189204744 8.64 7.64 6.25     M5IIIa 97 0
53 * 42 Lib * 15 40 16.8983538966 -23 49 05.075358909 7.80 6.29 4.96 4.00 3.32 K3-IIICN2 110 0
54 * del Oph PM* 16 14 20.73853 -03 41 39.5612 6.30 4.34 2.75 1.46 0.43 M0.5III 344 0
55 * nu.01 CrB V* 16 22 21.4254510098 +33 47 56.582479490 8.74 6.80 5.20     M2III 46 0
56 HD 150580 * 16 41 00.5816182593 +24 51 31.333966983   7.407 6.070     K2 21 0
57 * 50 Her V* 16 50 38.9585916989 +29 48 23.544206874 9.24 7.32 5.72     M1III 43 0
58 HD 160677 * 17 39 57.5180846707 +31 12 08.888963989 9.59 7.61 6.03     M2III 26 0
59 * gam Dra * 17 56 36.36988 +51 29 20.0242 5.630 3.760 2.230 1.08 0.23 K5III 516 0
60 HD 167193 PM* 18 13 16.5645460529 +21 52 49.278659467   7.609 6.132     K4III 42 0
61 * lam Sgr PM* 18 27 58.2407185 -25 25 18.114589 4.75 3.85 2.81 2.06 1.50 K1IIIb 259 0
62 * 13 Lyr LP* 18 55 20.1022285 +43 56 45.931489 7.00 5.59 4.00 1.95 0.04 M5III 300 0
63 * ksi02 Sgr * 18 57 43.7990826 -21 06 23.961268 5.82 4.69 3.51 2.71 2.12 G8/K0II/III 108 0
64 HD 177808 PM* 19 04 57.8746193651 +31 44 38.653839911 9.01 7.10 5.56     M0III 45 0
65 HD 177809 V* 19 04 58.2877684948 +30 44 00.262950378 9.49 7.61 6.06     M2III 23 0
66 * gam Sge PM* 19 58 45.4286265 +19 29 31.728079 6.97 5.04 3.47 2.27 1.35 M0-III 241 0
67 * 39 Cyg SB* 20 23 51.6206989 +32 11 24.619097 7.27 5.77 4.44 3.43 2.76 K2.5IIIFe-0.5 129 0
68 V* EU Del LP* 20 37 54.7272555845 +18 16 06.874014451 8.42 7.38 5.89 3.24 0.97 M6III 164 0
69 * ups Cap V* 20 40 02.9451823684 -18 08 19.166393121 8.75 6.76 5.10     M1III 91 0
70 * 32 Vul V* 20 54 33.6378169646 +28 03 27.463248251 8.28 6.49 5.01     K4III 69 0
71 HD 200044 PM* 21 00 27.6882037877 +19 19 46.477206314   7.265 5.702     M3III 36 0
72 HD 212988 PM* 22 27 46.2546459439 +31 50 24.160602706   7.432 5.986     K2 14 0
73 * lam Aqr LP* 22 52 36.8772324702 -07 34 46.582981294 7.20 5.44 3.79 2.37 1.18 M2.5IIIFe-0.5 167 0
74 * bet Peg LP* 23 03 46.45746 +28 04 58.0336 6.05 4.09 2.42 0.92 -0.40 M2.5II-III 579 0
75 * phi Aqr SB* 23 14 19.3596471948 -06 02 56.398606998 7.64 5.77 4.22 2.94 1.86 M1.5III 120 0
76 * 14 And PM* 23 31 17.4127253191 +39 14 10.310491330   6.24   4.6   G8III 157 1
77 HD 221662 V* 23 33 55.4899954888 +20 50 27.358410445   7.757 6.111     M3III 26 0
78 * 23 Psc PM* 23 52 23.3907875059 +21 40 15.958817638   7.713 6.113     M2III 24 0
79 HD 224303 V* 23 56 41.5016785178 +22 38 53.129358945   7.764 6.166     M2III 32 0
80 * psi Peg ** 23 57 45.5268071 +25 08 29.047968 7.91 6.25 4.66 3.20 1.86 M3III 118 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-01:06:11

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