2001AJ....122.2707N

Query : 2001AJ....122.2707N

2001AJ....122.2707N - Astron. J., 122, 2707-2712 (2001/November-0)

Comparison of stellar angular diameters from the NPOI, the MARK III optical interferometer, and the infrared flux method.

NORDGREN T.E., SUDOL J.J. and MOZURKEWICH D.

Abstract (from CDS):

The Navy Prototype Optical Interferometer (NPOI) has been used to measure the angular diameters of 41 late-type giant and supergiant stars previously observed with the Mark III optical interferometer. Sixteen of these stars have published angular diameters based on model atmospheres (infrared flux method, IRFM). Comparison of these angular diameters shows that there are no systematic offsets between any pair of data sets. Furthermore, the reported uncertainties in the angular diameters measured using both interferometers are consistent with the distribution of the differences in the diameters. The distribution of diameter differences between the interferometric and model atmosphere angular diameters are consistent with uncertainties in the IRFM diameters of 1.4%. Although large differences in angular diameter measurements are seen for three stars, the data are insufficient to determine whether these differences are due to problems with the observations or are due to temporal changes in the stellar diameters themselves.

Abstract Copyright: ∼

Journal keyword(s): Stars: Atmospheres - Stars: Fundamental Parameters - Stars: Late-Type

Simbad objects: 41

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Number of rows : 41
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 * del And SB* 00 39 19.6031132231 +30 51 39.540873571 6.04 4.56 3.28 2.36 1.70 K3III-IIIbCN0.5 340 0
2 * alf Cas PM* 00 40 30.4430418459 +56 32 14.385181354 4.52 3.40 2.23 1.45 0.85 K0-IIIa 349 0
3 * 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
4 * alf Per V* 03 24 19.3700924 +49 51 40.245455 2.64 2.27 1.79     F5Ib 870 1
5 * del Tau SB* 04 22 56.0951595936 +17 32 33.049802364 5.56 4.74 3.76 5.56   G9.5IIICN0.5 542 0
6 * eps Tau ** 04 28 37.0002551195 +19 10 49.563140930 5.42 4.54 3.53     G9.5IIICN0.5 628 1
7 * eps Aur SB* 05 01 58.1343686760 +43 49 23.917115316 3.86 3.53 2.99 2.47 2.02 A9Ia 600 0
8 * eps Gem V* 06 43 55.9271511904 +25 07 52.057892524 5.85 4.39 2.98 2.01 1.40 G8Ib 408 0
9 * alf CMi SB* 07 39 18.11950 +05 13 29.9552 0.82 0.79 0.37 -0.05 -0.28 F5IV-V+DQZ 1925 0
10 * bet Gem PM* 07 45 18.94987 +28 01 34.3160 3.00 2.14 1.14 0.39 -0.11 K0IIIb 1150 2
11 * bet Cnc PM* 08 16 30.9209888482 +09 11 07.958245527 6.750 5.000 3.520 2.42 1.62 K4IIIBa0.5: 383 0
12 * zet Hya PM* 08 55 23.6261974442 +05 56 44.034757439 4.92 4.10 3.10 2.39 1.90 G8.5III 254 0
13 * alf Lyn PM* 09 21 03.3002104870 +34 23 33.213441656 6.63 4.69 3.14 1.91 1.01 K6III 220 0
14 * eps Leo V* 09 45 51.0736168507 +23 46 27.313597604 4.23 3.79 2.98 2.36 1.93 G1IIIa 354 0
15 * mu. UMa SB* 10 22 19.7276765267 +41 29 58.337745272 6.53 4.64 3.05 1.76 0.80 M0III 331 0
16 * 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
17 * psi UMa PM* 11 09 39.8082958358 +44 29 54.555917043 5.27 4.15 3.01 2.18 1.61 K1III 294 0
18 * nu. UMa * 11 18 28.7372062295 +33 05 39.501852796 6.44 4.89 3.49 2.43 1.73 K3-III: 211 0
19 * lam Dra V* 11 31 24.2216743198 +69 19 51.872628403 7.44 5.47 3.85 2.54 1.55 M0III-IIIaCa1 140 0
20 * nu. Vir LP* 11 45 51.5595979999 +06 31 45.748996439 7.32 5.54 4.04 2.79 1.78 M1III 267 0
21 * 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
22 * eta Boo SB* 13 54 41.07892 +18 23 51.7946 3.440 3.250 2.680 2.24 1.95 G0IV 733 0
23 * 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
24 * 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
25 * alf Ser PM* 15 44 16.0741095811 +06 25 32.268792881 5.080 3.800 2.630 1.82 1.25 K2IIIbCN1 533 0
26 * 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
27 * 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
28 * zet Her SB* 16 41 17.16104 +31 36 09.7873 3.640 3.430 2.800 2.31 1.99 G0IV 562 0
29 * 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
30 * pi. Her V* 17 15 02.8342463677 +36 48 32.981576254 6.28 4.61 3.18 2.22 1.49 K3II 256 0
31 * del Dra PM* 19 12 33.3013729052 +67 39 41.539165396 4.85 4.07 3.07 2.37 1.86 G9III 295 0
32 * gam Aql * 19 46 15.5789542266 +10 36 47.731401477 5.93 4.23 2.72 1.65 0.87 K3II 450 0
33 * 31 Cyg SB* 20 13 37.9082370480 +46 44 28.761618048 5.50 5.08 3.80 2.83 2.07 K3Ib+B2IV-V 385 0
34 * omi02 Cyg SB* 20 15 28.3242122880 +47 42 51.213932496 6.54 5.50 3.98 2.78 1.86 K7Ib-II+B1V 347 0
35 * gam Cyg V* 20 22 13.7018357 +40 15 24.044963 3.44 2.90 2.23 1.74 1.40 F8Ib 607 0
36 * ksi Cyg SB* 21 04 55.8599363125 +43 55 40.272058234 7.17 5.39 3.73 2.55 1.63 K4.5Ib-II 324 0
37 * eps Peg LP* 21 44 11.1561394 +09 52 30.031152 5.61 3.91 2.39 1.34 0.58 K2Ib-II 464 1
38 * alf Aqr * 22 05 47.0355458275 -00 19 11.463439527 4.65 3.90 2.94 2.27 1.76 G2Ib 451 0
39 * zet Cep s*r 22 10 51.2777055617 +58 12 04.542602641 6.62 4.90 3.35 2.27 1.49 K1.5Ib 295 0
40 * eta Peg SB* 22 43 00.1288449480 +30 13 16.372969392 4.38 3.81 2.95 2.31 1.83 G8II+F0V 208 0
41 * mu. Peg PM* 22 50 00.1930748087 +24 36 05.692620534 5.10 4.42 3.48 2.80 2.33 G8+III 304 0

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