2017A&A...608A.113N


Query : 2017A&A...608A.113N

2017A&A...608A.113N - Astronomy and Astrophysics, volume 608A, 113-113 (2017/12-1)

A near-infrared interferometric survey of debris-disc stars. VI. Extending the exozodiacal light survey with CHARA/JouFLU.

NUNEZ P.D., SCOTT N.J., MENNESSON B., ABSIL O., AUGEREAU J.-C., BRYDEN G., TEN BRUMMELAAR T., ERTEL S., COUDE DU FORESTO V., RIDGWAY S.T., STURMANN J., STURMANN L., TURNER N.J. and TURNER N.H.

Abstract (from CDS):

We report the results of high-angular-resolution observations that search for exozodiacal light in a sample of main sequence stars and sub-giants. Using the "jouvence" of the fiber linked unit for optical recombination (JouFLU) at the center for high angular resolution astronomy (CHARA) telescope array, we have observed a total of 44 stars. Out of the 44 stars, 33 are new stars added to the initial, previously published survey of 42 stars performed at CHARA with the fiber linked unit for optical recombination (FLUOR). Since the start of the survey extension, we have detected a K-band circumstellar excess for six new stars at the ∼1% level or higher, four of which are known or candidate binaries, and two for which the excess could be attributed to exozodiacal dust. We have also performed follow-up observations of 11 of the stars observed in the previously published survey and found generally consistent results. We do however detect a significantly larger excess on three of these follow-up targets: Altair, υ And and κ CrB. Interestingly, the last two are known exoplanet host stars. We perform a statistical analysis of the JouFLU and FLUOR samples combined, which yields an overall exozodi detection rate of 21.7+5.7–4.1%. We also find that the K-band excess in FGK-type stars correlates with the existence of an outer reservoir of cold (≤100K) dust at the 99% confidence level, while the same cannot be said for A-type stars.

Abstract Copyright: © ESO, 2017

Journal keyword(s): circumstellar matter - binaries: close - planets and satellites: detection - techniques: interferometric - techniques: interferometric

Simbad objects: 51

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Number of rows : 51
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 * nu. And SB* 00 49 48.8473652 +41 04 44.076380 3.80 4.38 4.53 4.56 4.71 B5V 209 0
2 HD 5015 PM* 00 53 04.1964421920 +61 07 26.299289856 5.43 5.34 4.80 4.32 4.02 F9V 215 0
3 * mu. And PM* 00 56 45.2090751570 +38 29 57.603377713 4.14 3.99 3.87 3.72 3.64 A6V 213 0
4 * tet Cas PM* 01 11 06.1622468 +55 08 59.647259 4.630 4.510 4.330 4.16 4.09 A7V 194 0
5 * ups And PM* 01 36 47.8415443907 +41 24 19.651368029 4.70 4.64 4.10 3.64 3.35 F9V 931 1
6 HD 10780 BY* 01 47 44.8344358038 +63 51 09.011001993 6.84 6.44 5.63 4.99 4.60 K0V 330 0
7 * gam Tri PM* 02 17 18.8670335 +33 50 49.895049   4.03 4.00   4.05 A1Vnn 189 0
8 * 13 Tri PM* 02 28 48.4944856357 +29 55 54.328558216   6.478 5.901     G0V 148 0
9 * iot Per PM* 03 09 04.0193012009 +49 36 47.802053343 4.76 4.64   3.7   G0V 527 0
10 * kap01 Cet BY* 03 19 21.6964175772 +03 22 12.714979884 5.71 5.52 4.85 4.27 3.91 G5V 855 0
11 * del Eri * 03 43 14.9005379551 -09 45 48.210955899 5.13 4.46 3.54 2.82 2.32 K0+IV 576 0
12 * omi02 Eri Er* 04 15 16.3196189945 -07 39 10.330779018 5.69 5.25 4.43 3.74 3.29 K0V 782 0
13 * b Tau PM* 04 28 50.1636212976 +13 02 51.367198596   5.226 5.014 4.907 4.795 kA5hF0VmF0 186 0
14 * bet Eri PM* 05 07 50.9748851089 -05 05 11.389142292 3.02 2.92 2.79 2.65 2.57 A3IV 216 0
15 * lam Aur PM* 05 19 08.4754499121 +40 05 56.585080940 5.46 5.33 4.71 4.18 3.86 G1.5IV-VFe-1 512 0
16 * eta Lep PM* 05 56 24.2934904501 -14 10 03.718335613 4.05 4.05 3.72 3.39 3.23 F2V 329 0
17 * e Gem PM* 06 54 38.6381476771 +13 10 40.243144636   4.997 4.715     kA8mF0Vp 104 0
18 HD 69830 PM* 08 18 23.9469682407 -12 37 55.817187530   6.74 5.95     G8:V 501 1
19 * alf Leo PM* 10 08 22.31099 +11 58 01.9516 0.88 1.24 1.40 1.37 1.47 B8IVn 834 0
20 * bet Leo dS* 11 49 03.57834 +14 34 19.4090 2.30 2.22 2.13 2.08 2.06 A3Va 564 0
21 * 70 Vir PM* 13 28 25.8085908881 +13 46 43.638308807 5.930 5.680 4.970 4.37 3.98 G4Va 698 1
22 * ksi Boo BY* 14 51 23.37993 +19 06 01.6994 5.618 5.370 4.593 3.91 3.48 G7Ve+K5Ve 455 0
23 * kap CrB PM* 15 51 13.9312943632 +35 39 26.573691158 6.69 5.82 4.82 4.06 3.57 K1IVa 252 1
24 * gam Ser PM* 15 56 27.1826948 +15 39 41.820500 4.31 4.34 3.84 3.37 3.13 F6V 546 0
25 * psi01 Dra A SB* 17 41 56.0623701456 +72 08 55.927617972   4.98 4.55 4.3   F5IV-V 156 1
26 * psi01 Dra B PM* 17 41 58.1032377264 +72 09 24.845629104   6.04 5.53 5.2   F8V 146 0
27 * zet Ser PM* 18 00 29.0100539320 -03 41 24.977568563   4.982 4.616     F2V 186 0
28 * 72 Oph PM* 18 07 20.9839294 +09 33 49.850100 3.95 3.85 3.73 3.59 3.54 A5V 140 0
29 * 36 Dra PM* 18 13 53.8328065738 +64 23 50.225760192   5.407 4.987 4.8   F5V 187 0
30 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0Va 2615 0
31 * 110 Her PM* 18 45 39.7256792847 +20 32 46.713086264 4.66 4.65 4.19 3.80 3.54 F5.5IV-V 396 0
32 * zet Aql PM* 19 05 24.6080155 +13 51 48.518212 2.99 3.00 2.99 2.98 2.98 A0IV-Vnn 335 0
33 * b Aql PM* 19 24 58.1999714302 +11 56 39.888480530 6.35 5.93   4.7   G7IVHdel1 474 0
34 * del Aql ** 19 25 29.90139 +03 06 53.2061 3.72 3.68 3.36 3.11 2.95 F1IV-V(n) 231 0
35 * iot Cyg PM* 19 29 42.3587204 +51 43 47.205830   3.899 3.755     A5V 131 0
36 * sig Dra PM* 19 32 21.5902098601 +69 39 40.235805206 5.860 5.460 4.680 4.04 3.63 K0V 606 0
37 * alf Aql dS* 19 50 46.99855 +08 52 05.9563 1.07 0.98 0.76 0.62 0.49 A7Vn 855 0
38 * omi Aql PM* 19 51 01.6436960928 +10 24 56.592457524   5.66   4.8   F8V 439 0
39 HD 190360 PM* 20 03 37.4050868074 +29 53 48.492435887   6.44   5.2   G7IV-V 419 1
40 * b03 Cyg dS* 20 14 32.0323540824 +36 48 22.700909124 5.10 5.11 4.99 4.79 4.72 A2V 247 0
41 * tau Cyg dS* 21 14 47.49252 +38 02 43.1441 4.140 4.120 3.730 3.38 3.14 F2IV 276 0
42 * alf Cep PM* 21 18 34.77233 +62 35 08.0681 2.770 2.680 2.460 2.22 2.11 A8Vn 348 0
43 * tet Peg PM* 22 10 11.9852752 +06 11 52.307750 3.72 3.62 3.55 3.50 3.46 A1Va 178 0
44 * eps Cep SB* 22 15 02.1972987635 +57 02 36.846735569   4.47   4.0   F0V(Sr) 224 0
45 * alf Lac PM* 22 31 17.5013090 +50 16 56.968200 3.78 3.78 3.77 3.77 3.80 A1V 250 0
46 * ksi Peg PM* 22 46 41.5798542334 +12 10 22.388860108 4.66 4.69 4.20 3.73 3.42 F6V 374 0
47 * 51 Peg PM* 22 57 27.9804852576 +20 46 07.797040104 6.39 6.16 5.46 4.97 4.61 G2IV 1128 1
48 * 7 And PM* 23 12 33.0035121942 +49 24 22.345927341 4.85 4.81 4.52 4.23 4.07 F1V 149 0
49 HD 219134 Er* 23 13 16.9749603608 +57 10 06.083823619 7.460 6.560 5.570 4.76 4.23 K3V 564 1
50 * iot Psc PM* 23 39 57.0413764 +05 37 34.647529 4.640 4.620 4.120 3.68 3.37 F7V 599 0
51 * 1 Cet PM* 23 58 21.2249798328 -15 50 50.941046580   7.355 6.276     K1IIICNII 24 0

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2022.12.01-20:34:40

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