1998A&AS..127..277K


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.17CEST21:24:35

1998A&AS..127..277K - Astron. Astrophys., Suppl. Ser., 127, 277-294 (1998/January-2)

Are metallic A-F giants evolved Am stars? Rotation and rate of binaries among giant F stars.

KUENZLI M. and NORTH P.

Abstract (from CDS):

We test the hypothesis of Berthet (1991A&A...251..171B) which foresees that Am stars become giant metallic A and F stars (defined by an enhanced value of the blanketing parameter {DELTA}m2 of the Geneva photometry) when they evolve. If this hypothesis is right, Am and metallic A-FIII stars need to have the same rate of binaries and a similar distribution of vsini. From our new spectroscopic data and from vsin i and radial velocities in the literature, we show that it is not the case. The metallic giant stars are often fast rotators with vsin i larger than 100km/s, while the maximum rotational velocity for Am stars is about 100km/s. The rate of tight binaries with periods less than 1000 days is less than 30% among metallic giants, which is incompatible with the value of 75% for Am stars (Abt & Levy 1985ApJS...59..229A). Therefore, the simplest way to explain the existence of giant metallic F stars is to suggest that all normal A and early F stars might go through a short ``metallic" phase when they are finishing their life on the main sequence. Besides, it is shown that only giant stars with spectral type comprised between F0 and F6 may have a really enhanced {DELTA}m2 value, while all A-type giants seem to be normal.

Abstract Copyright:

Journal keyword(s): stars: binaries: spectroscopic - stars: chemically peculiar - stars: evolution - stars: rotation - stars: δ Scuti

VizieR on-line data: <Available at CDS (J/A+AS/127/277): table2 table3 table6 tables.tex>

Simbad objects: 88

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Number of rows : 88

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 * 31 Psc * 00 02 24.1665829242 +08 57 24.565135904   6.497 6.325     A6V 35 0
2 * 6 Cet PM* 00 11 15.8508998160 -15 28 04.740699873 5.35 5.38 4.89     F8VFe-0.8CH-0.5 281 0
3 HD 1324 PM* 00 16 48.3782979876 -78 46 48.545891601   7.230 6.776     F5V 26 0
4 * rho And PM* 00 21 07.2689567019 +37 58 06.972655202   5.60 5.18     F5IV-V 117 0
5 * 28 And dS* 00 30 07.3626822971 +29 45 05.592507696   5.467 5.214     A7III 199 1
6 V* BB Phe dS* 00 30 27.8253431561 -40 56 22.507330916   6.490 6.172     F0/2III 44 0
7 HD 4338 ** 00 45 41.70736 -16 25 27.1846   6.786 6.499     F0IV 36 0
8 V* AZ Phe dS* 00 50 03.7714907121 -43 23 41.922703668   6.764 6.476     A9/F0III 40 0
9 * rho Phe dS* 00 50 41.1869505641 -50 59 12.546543547   5.589 5.225     F3III 66 0
10 * 30 Cet PM* 01 07 46.2087686550 -09 47 07.981806890   6.140 5.705     F5V 51 0
11 V* VY Psc dS* 01 46 35.2989470646 +17 24 45.717155449   6.80 6.55     A9III 63 0
12 V* BK Cet dS* 01 52 52.1128259061 -16 55 45.304215168   6.030 5.782     F0V 53 0
13 * alf Hyi PM* 01 58 46.1946699 -61 34 11.494778 3.33 3.13 2.84 2.55 2.39 F0IV 199 0
14 * 60 Cet PM* 02 03 11.6500176714 +00 07 42.628215059   5.579 5.423     A3IV 51 0
15 * 14 Ari PM* 02 09 25.3249845242 +25 56 23.416316591   5.318 4.977     F2III 94 0
16 * lam Hor PM* 02 24 53.9103440164 -60 18 43.017036884   5.731 5.355     F2II/III 56 0
17 * 16 Per dS* 02 50 35.0597875 +38 19 07.108023   4.57   4.0   F2III 112 0
18 HD 17918 PM* 02 53 11.6949246875 +16 29 00.465737680   6.74 6.30     F5III 52 0
19 * 36 Per PM* 03 32 26.2588591770 +46 03 24.702913653 5.71 5.73 5.32 4.91 4.69 F4III 102 0
20 * 10 Tau PM* 03 36 52.1448022536 +00 23 58.536917738 5.23 5.15 4.30 4.09 3.77 F9IV-V 514 0
21 V* DL Eri dS* 03 56 37.9261791273 -09 45 02.978430900   6.439 6.177     A9V 75 0
22 * 55 Eri B a2* 04 43 34.749 -08 47 39.56   7.17 6.73     F2VpSrSi 43 0
23 * 15 Ori ** 05 09 41.9648107640 +15 35 49.905106197 5.33 5.14 4.82 4.50 4.31 F2IV 102 1
24 HD 34045 * 05 13 59.9491929108 -14 36 24.728697586   6.586 6.210     A9II/III 35 0
25 HD 40455 PM* 05 54 11.9355594693 -64 28 56.075814988   7.000 6.603     F0III 27 0
26 * 45 Aur SB* 06 21 46.1305410496 +53 27 07.840023857   5.774 5.333     F5V 90 0
27 * ksi Gem PM* 06 45 17.3643205 +12 53 44.131127 3.85 3.79 3.36 2.97 2.74 F5IV-V 199 0
28 * tet Gem PM* 06 52 47.3388710 +33 57 40.517462 3.84 3.70 3.60 3.50 3.42 A2IV 122 0
29 * del01 CMi * 07 32 05.9485437370 +01 54 52.130058865   5.448 5.233     F0V 76 0
30 HD 60489 SB* 07 34 46.2085024730 +02 43 31.786984190   6.765 6.536     A5/7(m)A5-F0 39 0
31 * 25 Mon dS* 07 37 16.6909314811 -04 06 39.526848763   5.570 5.131     F6III 129 0
32 * omi Gem PM* 07 39 09.9362454307 +34 35 03.480603218 5.41 5.30 4.90 4.51 4.29 F3III 94 0
33 V* AZ CMi dS* 07 44 07.6329367147 +02 24 19.522610256   6.67 6.47     A5IV 63 0
34 V* HQ Hya dS* 08 19 15.0830271036 -10 09 56.701867780   6.640 6.300     F2IV 94 0
35 * k Vel * 09 15 45.0794250438 -37 24 47.312422646 5.17 5.07 4.62 4.24 3.96 F3/5V 66 0
36 HD 82043 PM* 09 29 24.4401847930 -02 12 18.682593495   6.345 6.126     A7/8V+(F/G) 26 0
37 HD 84607 PM* 09 46 23.6106195393 +01 47 08.125779385   5.978 5.640     F0/2IV 47 0
38 * 20 Leo dS* 09 49 50.0942643 +21 10 45.919205   6.330 6.077     A7IVn 120 1
39 * 12 Sex PM* 09 59 43.0825702700 +03 23 05.235832029   6.966 6.694     A3V 46 0
40 * zet Leo V* 10 16 41.4159679 +23 25 02.322080 3.89 3.72 3.41 3.09 2.91 F0IIIa 212 0
41 * eps Sex PM* 10 17 37.8019973 -08 04 08.089800   5.559 5.240     F0IV 93 0
42 * 40 Leo dS* 10 19 44.1668778 +19 28 15.294314   5.24   4.5   F6IV-V 242 0
43 HD 90454 PM* 10 24 59.4177893594 -58 34 34.687042505   6.27 5.93     F2II/III 25 0
44 * 30 LMi Pe* 10 25 54.8153485 +33 47 46.030956   4.978 4.718     F0VmF3/4 137 0
45 HD 92787 PM* 10 43 32.8898818043 +46 12 13.956391864   5.51   5.0   F5III 83 0
46 HD 100418 * 11 33 14.8246777405 -16 16 49.460893970   6.630 6.044     F8/G0Ib/II 44 0
47 V* IQ Vir dS* 11 53 50.2771108914 +00 33 07.613271885   6.489 6.290     A9V 62 0
48 * 2 Com ** 12 04 16.59831 +21 27 32.9474           F0IV-V 75 0
49 HD 105841 PM* 12 11 05.1062377460 -61 16 38.726016224   6.473 6.071     F2III/IV 31 0
50 * 16 Com * 12 26 59.2961544883 +26 49 32.527285792   5.045 4.959   4.93 A4V 141 0
51 * 18 Com * 12 29 27.0417181202 +24 06 32.129050828   5.898 5.468     F5IV 119 1
52 HD 110318 SB* 12 41 16.2289348135 -13 00 53.546920046   6.28 5.822     F5V 62 1
53 HD 114762 SB* 13 12 19.7467346230 +17 31 01.611425890 7.78         F9VgF8mF4+M6?V 498 1
54 * 20 CVn dS* 13 17 32.5409307 +40 34 21.387477   5.010 4.698     A9IImF2 228 0
55 HD 118295 * 13 35 14.0991266530 +44 11 49.363619271   7.032 6.826     A8.5III 35 0
56 HD 122703 * 14 03 53.0902997687 -22 25 17.754220346   6.752 6.299     F3IV 25 0
57 HD 125150 PM* 14 18 23.7574527394 -33 13 13.999380657   6.818 6.536     A9IV/V 25 0
58 CCDM J14247-1140AB ** 14 24 40.85209 -11 40 10.9313   6.92 6.54     F3IV 38 1
59 * 5 Ser BY* 15 19 18.79710 +01 45 55.4685   5.60   4.8   F8IV 316 0
60 * gam Her ** 16 21 55.2144050 +19 09 11.261793 4.22 4.03 3.76 3.47 3.33 A9IIIbn 165 0
61 * 14 Oph PM* 16 41 42.4815507226 +01 10 52.434415982   6.045 5.724     F2V 56 0
62 HD 150453 PM* 16 41 53.6995776431 -19 55 27.717803778   5.971 5.559     F3V 71 0
63 HD 155646 PM* 17 12 54.3442713332 +00 21 07.300858774   7.137 6.643     F6V 98 0
64 * d Oph PM* 17 27 21.2757105 -29 52 01.326251   4.672 4.269     F5III-IV 94 0
65 * alf Oph ** 17 34 56.06945 +12 33 36.1346 2.32 2.22 2.07 1.93 1.85 A5IVnn 435 0
66 HD 171856 PM* 18 37 54.4267174769 -21 23 51.815796833   6.113 5.931     A5IV 47 0
67 HD 174866 ** 18 53 01.8098999393 -09 34 31.882236990   6.524 6.321     A4V 36 0
68 HD 176971 * 19 01 49.4311275885 +22 15 51.876452758 6.690 6.570 6.450     A4V 20 0
69 V* LT Vul dS* 19 03 42.4844694241 +21 16 06.059820586 7.070 6.940 6.630     F1Vn 67 0
70 HD 178187 PM* 19 06 38.3963338285 +24 15 02.815287606 6.000 5.890 5.790     A4III 42 0
71 * 28 Aql ** 19 19 39.3482954565 +12 22 28.839840869   5.766 5.518     F0III 103 1
72 * e02 Sgr PM* 19 42 31.1337494510 -16 07 26.390457775   5.362 5.045     F3IV/V 59 1
73 V* CN Dra dS* 19 46 44.6830266645 +68 26 16.830275414   6.625 6.331     F0III 55 0
74 * omi Aql PM* 19 51 01.6437560393 +10 24 56.595177367   5.66   4.8   F8V 414 0
75 HD 190172 * 20 04 01.1923031689 -07 28 10.225392869   7.07 6.72     F3II 32 0
76 * bet Del SB* 20 37 32.94130 +14 35 42.3195 4.16 4.07 3.63 3.23 2.99 F5IV 265 0
77 * sig Oct dS* 21 08 46.8434241415 -88 57 23.411695274   5.74 5.42     F0IV 53 0
78 HD 203842 PM* 21 24 24.5633021067 +10 10 27.270490271   6.792 6.317     F5III 54 0
79 HD 204577 PM* 21 29 59.5752552552 -19 08 52.182880443   6.970 6.570     F3V 47 0
80 * 5 Peg PM* 21 37 45.4300545651 +19 19 06.984131703   5.753 5.448     F1IV 74 0
81 * 20 Peg PM* 22 01 05.3516298051 +13 07 11.413866741   5.944 5.599     F4III 64 0
82 HD 208741 PM* 22 03 03.8207807316 -76 07 06.440512961   6.328 5.926     F3/5III 25 0
83 * 28 Peg * 22 10 30.1833624179 +20 58 40.737388806   6.531 6.438     A3III 25 0
84 V* CC Gru dS* 22 39 08.4013985331 -52 41 31.096991369   6.996 6.651     F3II/III 28 0
85 * 1 Psc * 22 54 59.4856372963 +01 03 53.647003843   6.31 6.11     A3IV 35 0
86 HD 217131 PM* 22 58 23.6609730279 -01 24 36.748903356   6.711 6.374     F2V 41 0
87 HD 219891 dS* 23 19 02.4127362173 +45 08 12.294459828 6.800 6.670 6.510     A5Vn 42 0
88 * iot Psc PM* 23 39 57.0413764 +05 37 34.647529 4.640 4.620 4.120 3.68 3.37 F7V 568 0

    Equat.    Gal    SGal    Ecl

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2019.10.17-21:24:35

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