2020A&A...639A...7J


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.25CET10:10:29

2020A&A...639A...7J - Astronomy and Astrophysics, volume 639A, 7-7 (2020/7-1)

Li-rich K giants, dust excess, and binarity.

JORISSEN A., VAN WINCKEL H., SIESS L., ESCORZA A., POURBAIX D. and VAN ECK S.

Abstract (from CDS):

The origin of the Li-rich K giants is still highly debated. Here, we investigate the incidence of binarity among this family from a nine-year radial-velocity monitoring of a sample of 11 Li-rich K giants using the HERMES spectrograph attached to the 1.2m Mercator Telescope. A sample of 13 non-Li-rich giants (8 of them being surrounded by dust according to IRAS, WISE, and ISO data) was monitored alongside. When compared to the binary frequency in a reference sample of 190 K giants (containing 17.4% of definite spectroscopic binaries - SB - and 6.3% of possible spectroscopic binaries - SB?), the binary frequency appears normal among the Li-rich giants (2/11 definite binaries plus 2 possible binaries, or 18.2% SB + 18.2% SB?), after taking account of the small sample size through the hypergeometric probability distribution. Therefore, there appears to be no causal relationship between Li enrichment and binarity. Moreover, there is no correlation between Li enrichment and the presence of circumstellar dust, and the only correlation that could be found between Li enrichment and rapid rotation is that the most Li-enriched K giants appear to be fast-rotating stars. However, among the dusty K giants, the binary frequency is much higher (4/8 definite binaries plus 1 possible binary). The remaining 3 dusty K giants suffer from a radial-velocity jitter, as is expected for the most luminous K giants, which these are.

Abstract Copyright: © ESO 2020

Journal keyword(s): binaries: general - stars: evolution - stars: late-type

VizieR on-line data: <Available at CDS (J/A+A/639/A7): stars.dat rv.dat tablea2.dat>

Status at CDS : Tables of objects will be appraised for possible ingestion in SIMBAD.

Simbad objects: 86

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Number of rows : 86

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 6 PM* 00 05 03.8233888558 -00 30 10.930558761   7.390 6.298     K0III 43 0
2 HD 787 PM* 00 12 09.9850054049 -17 56 17.699314201   6.740 5.265     K4III 88 0
3 HE 0017+0055 Pe* 00 20 21.5999105195 +01 12 06.814621800   12.991 11.66 10.773 10.186 CEMP-rs 19 0
4 * del And SB* 00 39 19.6751809 +30 51 39.678320 6.04 4.56 3.28 2.36 1.70 K3III-IIIbCN0.5 315 0
5 HD 3750 HB* 00 39 51.9503961805 -44 47 46.652774623   7.141 5.998     K1IIICNII 24 0
6 HD 4042 * 00 44 02.9835359682 +70 49 24.331364681   7.68 6.76     K0 16 0
7 * ups02 Cas Pe* 00 56 39.9041301647 +59 10 51.800571997   5.581 4.622     G8.5IIIbFe-0.5 209 0
8 HD 6665 * 01 07 36.4156337992 +20 33 43.303761113   9.65 8.44     G5 18 0
9 HD 8676 * 01 25 18.2210962917 -14 59 38.898369575   8.82 7.75     K0III 13 0
10 V* OP And RS* 01 36 27.1998189864 +48 43 21.999780804   7.47 6.22     K1III: 93 0
11 HD 10437 PM* 01 43 21.4789600080 +59 37 57.931357677   7.65 6.58     K1III 21 0
12 HD 12203 PM* 01 59 58.4064735742 +06 02 07.760202392   7.78 6.76     G5 14 0
13 HD 19745 TT* 03 07 03.2485607962 -65 26 56.809024681   10.16 9.10     K1III 35 0
14 HD 21078 PM* 03 23 12.4061810374 -26 06 58.508709479   8.94 7.98     K0III/IV 15 0
15 HD 24124 * 03 48 03.2947839828 -53 45 08.398091313   9.74 8.45     K1III 9 0
16 HD 27497 * 04 20 41.2526989368 +06 07 50.825850615   6.685 5.751     G8III-IV 38 0
17 HD 30197 SB* 04 46 16.8300300354 +18 44 04.865470896   7.201 5.981     K4III 64 0
18 * 2 Aur * 04 52 37.9809748976 +36 42 11.478901229   6.164 4.779     K3-IIIBa0.4 133 0
19 * 99 Tau * 04 57 48.6461452181 +23 56 54.832853036   6.903 5.806     K0III 31 1
20 HD 34043 V* 05 14 44.0490017979 +05 09 22.134863020   6.853 5.494     K4III 45 0
21 * p Ori SB* 05 24 28.9011575723 -00 53 28.877812346   6.032 5.072     G9III-IVBa0.5 99 0
22 HD 37719 * 05 38 08.9655052232 -47 42 51.434953452   8.70 7.60     K1III 14 0
23 HD 39853 PM* 05 54 43.6297944474 -11 46 27.085874975   7.148 5.613     K4III 106 0
24 HD 40168 * 05 56 54.7265792547 -08 23 02.483995031   7.90 6.88     K0III 12 0
25 HD 40827 * 06 05 08.2299828744 +59 23 35.568785297   7.442 6.321     K0+IIICN1- 29 0
26 HD 43827 V* 06 17 41.7242496891 -16 48 57.260429627   6.421 5.148     K1III 36 0
27 HD 51367 * 06 55 36.4697707665 -33 48 24.614887491   8.14 6.99     K1/2III 10 0
28 HD 63798 PM* 07 50 51.0985215541 +04 27 34.255047262   7.45 6.50     G8III/IV 22 0
29 * eps Car A * 08 22 30.833784 -59 30 34.13052   3.86 2.01     K3:III 4 0
30 HD 233517 * 08 22 46.7144627395 +53 04 49.232441095   10.85 9.71     K2 81 0
31 HD 76396 Pe* 08 57 58.9268837754 +51 25 47.662244925   9.96 8.85 8.5   C-H2IV: 60 0
32 HD 77361 PM* 09 01 11.4196224914 -26 39 49.374710790 8.49 7.352 6.187     K1IIICNII 25 0
33 * 27 UMa * 09 42 57.1918762260 +72 15 09.432229077   6.176 5.142     K0III 58 0
34 HD 85563 PM* 09 51 19.7045579571 -46 11 37.614356391   6.795 5.617     K2III 27 0
35 HD 86634 PM* 09 57 15.2070616896 -64 29 21.662249703   7.71 6.58     K0/1III 20 0
36 HD 88476 * 10 12 42.5357897455 +28 14 31.254148792 8.410 7.790 6.860     G8III 20 0
37 HD 90507 * 10 28 03.2762562392 +48 57 50.283272788   7.67 6.75     G5 15 0
38 * 35 UMa * 10 29 54.4368636066 +65 37 34.434348862   7.463 6.309     K2III: 29 0
39 * 43 UMa PM* 10 51 11.0099592723 +56 34 56.121840000   6.796 5.661     K2III 23 0
40 HE 1120-2122 C* 11 23 18.6220231246 -21 38 32.305399932   13.303 11.795 11.126 10.568 C 7 0
41 HD 102845 * 11 50 19.6035634903 -15 51 49.190588458   7.069 6.122     G6III 22 0
42 HD 106574 * 12 15 08.4925341122 +70 12 00.029373523   6.909 5.719     K2III 28 0
43 HD 107484 * 12 21 10.0855219329 +41 28 58.910408809   8.89 7.7     K2III 18 0
44 HD 108471 * 12 27 42.0814411539 +08 36 37.239406935   7.293 6.342     G8III 41 0
45 HD 108741 * 12 29 45.8740299560 -28 46 35.532675687   10.56 9.49     K0III 4 0
46 HD 112127 C* 12 53 55.7454142679 +26 46 47.984571519 9.56 8.14 6.88 5.97 5.39 C-R4IIIb 140 0
47 HD 113049 * 12 58 47.3525269194 +75 28 21.030499091   7.027 5.990     K0III 30 0
48 HD 115299 * 13 12 28.4816970326 +79 39 08.451024337   8.63 7.52     K0 10 0
49 * 63 Vir PM* 13 23 01.1146146600 -17 44 06.987580959   6.349 5.354     K0III 57 0
50 IRAS 13313-5838 pA* 13 34 37.4151902486 -58 53 32.355256714     13.15     K5I 18 0
51 HD 118319 V* 13 36 50.5707946472 -34 28 04.213436086   7.497 6.476     K0III 16 0
52 * 86 Vir ** 13 45 56.3216544962 -12 25 35.510628501           G8III 31 0
53 HD 120602 * 13 50 24.6782891653 +05 29 50.002618344   6.892 5.993     K0 42 0
54 IRAS 13539-4153 TT* 13 56 57.2668777596 -42 08 09.865923001   14.40 12.80 12.33   K 19 0
55 * 8 UMi * 14 56 48.3536367311 +74 54 03.321251380   7.834 6.835     K0 23 0
56 * gam Lib ** 15 35 31.5788082 -14 47 22.327851 5.67 4.93 3.91 3.20 2.65 G8.5III 142 0
57 HD 138289 PM* 15 39 18.3965772632 -77 55 04.820743062   7.431 6.181     K2.5IIIbCN1.5Ba+0.5 34 0
58 HD 145457 * 16 10 03.9143728132 +26 44 33.893717525   7.61 6.565 6.91   K0III 43 1
59 HD 148293 * 16 21 48.7120773476 +69 06 33.808720827   6.376 5.264     K2III 71 0
60 HD 150902 * 16 34 30.1951380771 +77 39 14.214096783   8.98 7.89 7.3   G5 16 0
61 * 30 Oph PM* 17 01 03.6014177830 -04 13 21.530818176   6.302 4.812     K4III 79 0
62 HD 156115 V* 17 16 15.8883568918 -15 13 25.374431201   8.44 6.58     K5III 20 0
63 HD 160781 * 17 41 32.3235981906 +06 18 47.365727721   7.231 5.952     G7III 28 0
64 UCAC2 14917288 * 18 03 06.7739484692 -39 51 54.000710521         10.59 K 13 0
65 HD 167304 * 18 12 42.6148544332 +41 08 48.610107007   7.420 6.352     K0III 21 0
66 HD 170527 PM* 18 25 10.1138992273 +64 50 18.306252451   7.86 6.86     K0 33 0
67 TYC 3105-152-1 * 18 36 29.3353988287 +39 04 11.759709371   10.97 9.81     K1III 11 0
68 HD 175370 Er* 18 52 59.7197736660 +43 42 48.492535560   8.46 7.19     K2III 12 0
69 HD 183492 PM* 19 29 22.1538633324 +14 35 45.661565296   6.618 5.564     K0III 58 0
70 * bet01 Cyg A * 19 30 43.286 +27 57 34.84   4.63 3.20     K3II 13 0
71 V* V859 Aql LP* 19 31 01.2269176135 +05 23 53.495279070   11.64 10.39     ~ 23 0
72 HD 186815 * 19 43 39.4965655507 +57 02 33.771691007   7.179 6.282     K2III 26 0
73 * iot Sgr PM* 19 55 15.6969107 -41 52 05.838796 6.11 5.21 4.13     K0II/III 74 0
74 HD 194937 * 20 28 07.5397433853 +08 26 14.813236119   7.290 6.229     G9III 25 0
75 HD 196857 PM* 20 40 32.5187117858 -16 07 27.033269818   6.779 5.799     K0III 19 0
76 HD 199437 V* 20 47 33.4535078202 +80 33 08.132793966   6.509 5.371     K1III 43 0
77 NGC 7027 PN 21 07 01.8 +42 14 10   9.1 10.9     ~ 2338 1
78 HD 203136 * 21 18 40.3832665946 +50 10 56.789850043   8.65 7.73     K0III 21 0
79 HD 206078 PM* 21 37 10.4218106934 +62 18 15.275819480   8.12 7.17     G8III 36 0
80 HD 212320 * 22 23 32.1522053137 -07 11 39.893279947   6.913 5.907     G8Ib/II(w) 61 0
81 * 50 Aqr PM* 22 24 27.0601648 -13 31 45.728963   6.717 5.752     G7.5III 42 0
82 HD 235858 pA* 22 29 10.3755939027 +54 51 06.341145584   11.40 9.52 8.47 7.34 G5Ia 238 0
83 HD 214995 PM* 22 41 57.4560970108 +14 30 59.017990659   7.027 5.921     K0III 61 0
84 V* DI Psc LP? 22 59 59.3874154903 +05 09 34.474494065   8.32 7.16     K0III/IV 27 0
85 V* BI Ind RS* 23 13 52.7844537915 -68 17 28.817442897   8.89 7.67     K2IIIp 36 0
86 HD 221776 * 23 34 46.7419970327 +38 01 26.401648165   7.766 6.173     K5III 20 0

    Equat.    Gal    SGal    Ecl

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2020.10.25-10:10:29

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