2014MNRAS.441.1669C

Query : 2014MNRAS.441.1669C

2014MNRAS.441.1669C - Mon. Not. R. Astron. Soc., 441, 1669-1680 (2014/June-3)

Fundamental parameters of eight Am stars: comparing observations with theory.

CATANZARO G. and RIPEPI V.

Abstract (from CDS):

In this paper we present a detailed analysis of a sample of eight Am stars, four of them are in the Kepler field of view. We derive fundamental parameters for all observed stars, effective temperature, gravity, rotational and radial velocities, and chemical abundances by spectral synthesis method. Further, to place these stars in the Hertzsprung-Russel diagram, we computed their luminosity. Two objects among our sample, namely HD 114839 and HD 179458, do not present the typical characteristic of Am stars, while for the others six we confirm their nature. The behaviour of lithium abundance as a function of the temperature with respect the normal A-type stars has been also investigated, we do not find any difference between metallic and normal A stars. All the pulsating Am stars present in our sample (five out of eight) lie in the δ Sct instability strip, close to the red edge.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): stars: abundances - stars: chemically peculiar - stars: early-type - stars: fundamental parameters

Simbad objects: 55

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Number of rows : 55
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 * tet Scl PM* 00 11 44.0210769384 -35 07 59.212953084   5.661 5.239     F5V 161 0
2 * 28 And dS* 00 30 07.3651144632 +29 45 05.608065024   5.467 5.214     A7III 220 0
3 * 47 Cet * 01 26 51.5647682880 -13 03 23.439954456   5.808 5.505     F0.5V 89 0
4 * bet Ari SB* 01 54 38.41099 +20 48 28.9133 2.88 2.78 2.65 2.51 2.43 kA4hA5mA5Va 426 1
5 HD 24933 SB* 03 57 41.0668089096 -02 52 17.166418104   9.49 8.98     F5V 6 0
6 * psi Tau Pe* 04 07 00.4569539328 +29 00 04.709274660   5.57 5.2     F1V_(dD) 102 0
7 * p Tau dS* 04 10 49.8608447112 +26 28 51.436474392   5.715 5.387     F2IV-V 211 0
8 HD 27411 PM* 04 18 37.4916446424 -22 58 10.995306132   6.372 6.060     A3mA5-F2 62 0
9 * del02 Tau PM* 04 24 05.7614531616 +17 26 38.871301956 5.07 4.95 4.80 4.64 4.57 A2Vs 261 0
10 * del03 Tau a2* 04 25 29.3847186643 +17 55 40.463442784   4.369 4.298 6.18 4.24 A2IV-Vs 429 0
11 * pi.03 Ori PM* 04 49 50.4112051485 +06 57 40.600622266 3.620 3.630 3.190 2.77 2.51 F6V 601 0
12 * 9 Aur gD* 05 06 40.6306032888 +51 35 51.798998724       4.8   F2V 201 0
13 * 14 Aur dS* 05 15 24.3941965368 +32 41 15.359679780   5.217 5.000 6.45   A8III 208 0
14 HD 37788 * 05 41 05.5958352240 +00 20 15.915863220   6.212 5.912     F0V 63 0
15 * eta Lep PM* 05 56 24.2934904501 -14 10 03.718335613 4.05 4.05 3.72 3.39 3.23 F2V 352 0
16 * mu. Ori SB* 06 02 22.99668 +09 38 50.1820 4.40     3.94 3.86 A1Vm+F2V 268 0
17 * 6 Mon * 06 17 35.1250543368 -10 43 29.969702904   7.092 6.747     F0IV 52 0
18 HD 50062 * 06 51 39.3767175696 +03 02 31.170044148   6.410 6.369     A1/2IV 41 0
19 * rho Gem PM* 07 29 06.71887 +31 47 04.3773 4.48 4.50 4.18 3.86 3.67 F1V 338 0
20 * 2 Hya EB* 08 26 27.2059310314 -03 59 14.749144878   5.809 5.590     F0VmA6 101 0
21 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
22 HD 79765 PM* 09 16 27.1079681472 +18 48 36.915245496 7.310 7.320   6.8   A3 47 0
23 HD 79633 PM* 09 17 07.4886301824 +51 19 19.850043360   9.29 8.98     A3 30 0
24 V* CG UMa LP* 09 21 43.2878012736 +56 41 57.193537416   7.08 5.47     M4IIIa 56 0
25 * lam UMa PM* 10 17 05.7792565752 +42 54 51.889698684 3.54 3.48 3.45 3.37 3.38 A1IV 198 0
26 * 67 UMa dS* 12 02 06.7790915049 +43 02 44.028988799   5.47   5.1   F0Vam 122 0
27 HD 106749 PM* 12 16 26.6741020008 +07 21 19.616056524   8.66 8.40     A3 26 0
28 * alf01 CVn PM* 12 56 00.4315081824 +38 18 53.469061020 5.91 5.94 5.60 5.36 5.13 F2V 206 0
29 HD 112327 PM* 12 56 10.0150496328 -31 25 56.439329304   9.81 9.35     F3V 13 0
30 HD 113878 * 13 06 00.7403095944 +48 01 41.297136024   8.62 8.24     kA6hF2mF3(III)EuBa 39 0
31 V* NW Com dS* 13 12 47.4309572280 +26 52 52.189291992   8.74 8.46     kA7hF0mF1(III) 54 0
32 HD 118660 * 13 38 07.8883267440 +14 18 06.932355120   6.750 6.489     A9Vs 59 0
33 HD 132145 * 14 57 03.5936192400 +21 33 19.510507368   6.521 6.504     A1V 59 0
34 HD 134360 * 15 09 52.8932277264 -15 42 23.353644276   8.88 8.59     A9V 23 0
35 * lam CrB PM* 15 55 47.5872829824 +37 56 49.044936768   5.770 5.424     F2IV-V 111 0
36 * 14 Oph PM* 16 41 42.4819345392 +01 10 52.431236076   6.045 5.724     F2V 72 0
37 * 53 Her PM* 16 52 58.0577796120 +31 42 06.022816164   5.640 5.333   4.97 F0V 105 0
38 HD 159834 * 17 35 59.5679862984 +20 59 46.487022108   6.28 6.10     A7IV 49 0
39 * 101 Her * 18 08 52.8638629248 +20 02 42.838723104   5.259 5.099     A8III 52 0
40 V* V2502 Oph gD* 18 17 04.8404548584 +01 00 20.632225968   6.91 6.61     F2V 116 0
41 HD 176843 dS* 19 00 03.3735043056 +45 36 27.506381040   9.05 8.74     kA3hA9mF1V 30 0
42 HD 177552 * 19 05 18.5671518312 -01 30 43.932525840   6.846 6.506     F2II 65 0
43 HD 178327 dS* 19 05 40.6256764176 +49 18 20.569417056   8.80 8.44     kA6hA9mF0(III) 26 0
44 * 59 Dra PM* 19 09 09.8814606288 +76 33 37.813819608   5.400 5.107     A7V 138 1
45 HD 179458 * 19 10 33.7958850816 +45 45 03.996048816   9.15 8.95     A3V 30 0
46 HD 183489 dS* 19 27 32.8091847504 +49 15 23.540341680   8.47 8.12     F0IV+ 35 0
47 HD 187254 SB* 19 47 11.4301422264 +44 50 53.621412720   8.94 8.71     kA5hA5mF2V 42 0
48 HD 190165 gD* 20 01 46.7156874888 +45 28 35.844023964 7.940 7.840 7.530     kA3hF0.5mF3(III)Am 38 0
49 HD 205939 * 21 37 27.8740204632 +44 41 47.574969360 6.580 6.400 6.200     A7III 44 1
50 * omi Peg * 22 41 45.4041684504 +29 18 27.631023336 4.77 4.78 4.79 4.75 4.77 A1IV 296 0
51 HD 217602 PM* 23 01 44.2604648112 +15 57 16.277545764   8.58 8.24 8.1   kA3hF1mF5(III) 25 0
52 HD 217754 * 23 02 33.3753436296 +31 46 53.752791540   6.887 6.550     F0IIp 58 0
53 HD 218396 El* 23 07 28.7157209544 +21 08 03.310767492   6.21 5.953     F0+VkA5mA5 1285 0
54 * 7 And PM* 23 12 33.0035121942 +49 24 22.345927341 4.85 4.81 4.52 4.23 4.07 F1V 162 0
55 * lam Psc PM* 23 42 02.8053593984 +01 46 48.151697051 4.79 4.72 4.51 4.33 4.23 A7V 163 0

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