2019ApJ...882..148G

Query : 2019ApJ...882..148G

2019ApJ...882..148G - Astrophys. J., 882, 148-148 (2019/September-2)

A recipe for finding stellar radii, temperatures, surface gravities, metallicities, and masses using spectral lines.

GRAY D.F. and KAUR T.

Abstract (from CDS):

A recipe based on physical principles employs the observed equivalent widths of 10 spectral lines to model the photosphere of a target star. Coupled with the visual magnitude and an absolute flux calibration, the recipe yields the angular radius, effective temperature, surface gravity, and metallicity. With the addition of a parallax, a linear radius and a mass estimate are added to the results. The method is applied to a sample of 26 G and K stars that span luminosity classes V to IIIa. The recipe-determined angular radii agree with the interferometer radii and have comparable errors. But unlike interferometers, the recipe is not limited to sizes >=1 mas. The veracity of the other recipe-derived parameters is supported by numerous comparisons with previously published values.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): methods: observational - stars: abundances - stars: atmospheres - stars: fundamental parameters - stars: late-type - techniques: spectroscopic

Simbad objects: 27

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Number of rows : 27
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 * eta Cas PM* 00 49 06.2945942922 +57 48 54.638239716 4.04 4.02 3.44 2.94 2.58 F9V 680 0
2 * alf Ari PM* 02 07 10.40570 +23 27 44.7032 4.29 3.17 2.01 1.15 0.54 K2-IIIbCa-1 644 2
3 * gam Tau ** 04 19 47.6039239005 +15 37 39.511385129 5.46 4.64 3.65 4.83   G9.5IIIabCN0.5 569 0
4 * del Tau SB* 04 22 56.0951595936 +17 32 33.049802364 5.56 4.74 3.76 5.56   G9.5IIICN0.5 542 0
5 * tet01 Tau SB* 04 28 34.4979222951 +15 57 44.221169423 5.510 4.780 3.840 5.48   G9IIIFe-0.5 509 0
6 * eps Tau ** 04 28 37.0002551195 +19 10 49.563140930 5.42 4.54 3.53     G9.5IIICN0.5 628 1
7 * bet Gem PM* 07 45 18.94987 +28 01 34.3160 3.00 2.14 1.14 0.39 -0.11 K0IIIb 1150 2
8 * eps Leo V* 09 45 51.0736168507 +23 46 27.313597604 4.23 3.79 2.98 2.36 1.93 G1IIIa 354 0
9 * alf UMa A PM* 11 03 43.668632 +61 45 03.72003   3.01 1.87     G9III 11 0
10 * alf UMa ** 11 03 43.67152 +61 45 03.7249 3.78 2.86 1.79 0.98 0.40 G9III+A7.5 448 0
11 * psi UMa PM* 11 09 39.8082958358 +44 29 54.555917043 5.27 4.15 3.01 2.18 1.61 K1III 294 0
12 * eps Vir PM* 13 02 10.5970152536 +10 57 32.935398266 4.45 3.71 2.79 2.16 1.71 G8III-IIIb 574 0
13 * 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 2417 1
14 * bet Boo PM* 15 01 56.7623044453 +40 23 26.046853660 5.21 4.47 3.52 2.85 2.37 G8IIIaFe-0.5 267 0
15 * del Boo PM* 15 15 30.1628200572 +33 18 53.392471806 5.12 4.44 3.49 2.76 2.25 G8IIIFe-1 388 0
16 * alf Ser PM* 15 44 16.0741095811 +06 25 32.268792881 5.080 3.800 2.630 1.82 1.25 K2IIIbCN1 533 0
17 * eta Dra PM* 16 23 59.4863284800 +61 30 51.155139060 4.35 3.65 2.74 2.12 1.66 G8-IIIab 313 0
18 * bet Her SB* 16 30 13.2003216885 +21 29 22.598684027 4.39 3.70 2.77 2.13 1.65 G7IIIaFe-0.5 331 0
19 * eta Her PM* 16 42 53.7649454572 +38 55 20.117710727 5.03 4.42 3.50 2.83 2.35 G7IIIFe-1 296 0
20 * bet Oph PM* 17 43 28.3519097803 +04 34 02.293206489 5.150 3.930 2.750 1.96 1.38 K2IIICN0.5 490 0
21 * mu.01 Her ** 17 46 27.5472960785 +27 43 14.560978925 4.56 4.17 3.42 2.89 2.51 G5IV 719 0
22 * eta Ser PM* 18 21 18.6004923875 -02 53 55.780691633 4.84 4.19 3.25 2.55 2.05 K0III-IV 390 0
23 * sig Dra PM* 19 32 21.5902098601 +69 39 40.235805206 5.860 5.460 4.680 4.04 3.63 K0V 691 0
24 * eta Cep PM* 20 45 17.3751675120 +61 50 19.614231888 4.960 4.320 3.410 2.76 2.27 K0IV 461 0
25 * eps Cyg ** 20 46 12.6722768426 +33 58 13.182037125 4.370 3.520 2.480 1.73 1.19 K0III 519 0
26 * zet Cyg SB* 21 12 56.1859894833 +30 13 36.835250232 4.96 4.20 3.21 2.52 2.04 G8+III-IIIaBa0.5 353 0
27 * gam Cep SB* 23 39 20.9104133784 +77 37 56.510781384 5.190 4.250   2.6   K1III-IVCN1 626 1

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