2022MNRAS.509.3355L

Query : 2022MNRAS.509.3355L

2022MNRAS.509.3355L - Mon. Not. R. Astron. Soc., 509, 3355-3370 (2022/January-3)

Close substellar-mass companions in stellar wide binaries: discovery and characterization with APOGEE and Gaia DR2.

LEWIS H.M., ANGUIANO B., MAJEWSKI S.R., NIDEVER D.L., BADENES C., DE LEE N., HASSELQUIST S., MAZZOLA DAHER C., STASSUN K.G., BIZYAEV D., GODOY-RIVERA D., NITSCHELM C., ORAVETZ A., PAN K. and ROMAN-LOPES A.

Abstract (from CDS):

We present a search for close, unresolved companions in a subset of spatially resolved Gaia wide binaries containing main-sequence stars within 200 pc of the Sun, utilizing the APOGEE-Gaia Wide Binary Catalog. A catalogue of 37 wide binaries was created by selecting pairs of stars with nearly identical Gaia positions, parallaxes, and proper motions, and then confirming candidates to be gravitationally bound pairs using APOGEE radial velocities. We identify close, unresolved stellar and substellar candidate companions in these multiple systems using (1) the Gaia binary main sequence and (2) observed periodic radial velocity variations in APOGEE measurements due to the influence of a close substellar-mass companion. The studied wide binary pairs reveal a total of four stellar-mass close companions in four different wide binaries, and four substellar-mass close companion candidates in two wide binaries. The latter are therefore quadruple systems, with one substellar-mass companion orbiting each wide binary component in an S-type orbit. Taken at face value, these candidate systems represent an enhancement of an order of magnitude over the expected occurrence rate of ∼2 per cent of stars having substellar companions >2 MJup within ∼100-d orbits; we discuss implications and possible explanations for this result. Finally, we compare chemical differences between the components of the wide binaries and the components of the candidate higher-order systems and find that any chemical influence or correlation due to the presence of close companions to wide binary stars is not discernible.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): techniques: radial velocities - stars: abundances - binaries: close

VizieR on-line data: <Available at CDS (J/MNRAS/509/3355): table5.dat>

Simbad objects: 81

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Number of rows : 81
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 2MASS J01315262+3029260 * 01 31 52.6230408720 +30 29 25.964750940   17.5 16.1     M2 8 0
2 TYC 2293-1131-1 Em* 01 31 55.0011710040 +30 29 52.263271248   12.804 11.707 11.438   K5 10 0
3 UCAC4 518-003418 * 02 00 59.1182084403 +13 34 58.572312388   17.087 15.184 14.875   ~ 5 0
4 UCAC4 518-003420 * 02 00 59.7590577511 +13 34 46.340979991       14.198   ~ 6 0
5 BD+00 485 Em* 02 57 23.6413071000 +00 58 18.573527172   11.4 10.7     F9 14 0
6 TYC 48-685-1 PM* 02 57 25.4863127304 +00 59 53.924297568   11.9 10.9     ~ 13 0
7 2MASS J03023581+0020190 * 03 02 35.8217985576 +00 20 18.954576240   15.144     14.437 ~ 6 0
8 UCAC4 452-004016 * 03 02 37.8060759866 +00 19 43.016453072   13.914 12.895 12.600   ~ 4 0
9 UCAC4 446-004133 * 03 09 33.4391382319 -00 53 35.248036305       11.149   ~ 3 0
10 UCAC4 446-004134 * 03 09 34.0450505728 -00 53 25.040935446       11.213   ~ 4 0
11 HD 20781c Pl 03 20 02.9428582501 -28 47 01.790465531           ~ 9 1
12 HD 20782b Pl 03 20 03.5777546706 -28 51 14.660358176           ~ 76 1
13 2MASS J05314360+0050069 * 05 31 43.6093328808 +00 50 06.984475188           ~ 8 0
14 2MASS J05315600+0050289 * 05 31 56.0059981056 +00 50 28.958657820           ~ 8 0
15 HD 41004Ab Pl 05 59 49.6501762752 -48 14 22.888358520           ~ 41 1
16 HD 41004Bb Pl 05 59 49.6531151 -48 14 23.428302           ~ 33 1
17 TYC 2471-511-1 * 07 52 47.1977755128 +32 01 19.140728160   11.94 11.28     ~ 4 0
18 UCAC4 611-041818 * 07 53 03.2941836359 +32 04 05.569629985   15.126 13.922 13.491   ~ 3 0
19 UCAC4 557-044120 * 08 15 52.5042359703 +21 14 14.255795988       14.104   ~ 3 0
20 UCAC4 557-044121 * 08 15 53.0495305580 +21 14 13.697130996   13.933 12.774 12.609   ~ 5 0
21 UCAC4 547-044494 PM* 08 17 02.3924237898 +19 19 20.218298169   13.396 12.390 12.138   ~ 6 0
22 UCAC4 547-044502 PM* 08 17 12.5031933094 +19 21 15.451037093   16.339 14.871 14.473   ~ 5 0
23 UCAC4 565-043116 * 08 22 32.2615090915 +22 57 51.974958377       12.751   ~ 5 0
24 UCAC4 565-043118 * 08 22 32.9671560271 +22 57 58.146829684   12.721 11.953 11.735   ~ 4 0
25 TYC 1941-2236-1 * 08 29 46.4266150032 +23 42 26.781246216   13.10 11.80     ~ 6 0
26 UCAC4 569-043940 * 08 29 47.2062752365 +23 42 25.907171979       16.214   MV 5 0
27 UCAC4 680-052547 * 10 55 00.2520972213 +45 48 31.993022477   15.108 13.735 13.241   ~ 5 0
28 UCAC4 680-052549 * 10 55 05.9218849992 +45 49 55.970735818   15.856 14.330 13.830   ~ 4 0
29 UCAC4 711-051179 PM* 11 16 34.3212075550 +52 11 24.541135129   14.512 13.317 12.962   ~ 6 0
30 UCAC4 711-051186 PM* 11 16 44.0377966517 +52 11 10.720928440   14.877 13.608 13.195   ~ 5 0
31 2MASS J11530466+1831525 * 11 53 04.6671716161 +18 31 52.437860726           M4.2 5 0
32 UCAC4 543-052671 * 11 53 05.0017309535 +18 32 06.854486820   17.802 16.031     M2.8 5 0
33 UCAC4 672-055567 PM* 12 22 24.5122793694 +44 18 49.149108315       13.976   M0.8 6 0
34 NGP 45 98 PM* 12 22 24.5133993576 +44 18 56.743698420   11.97 11.40     G5 10 0
35 NGP 28 123 PM* 12 52 51.3225841728 +27 35 13.285622868   12.606 11.802 11.646   G8 11 0
36 UCAC4 588-049886 PM* 12 53 00.8624641712 +27 34 18.971198951   14.955 13.845 13.532   ~ 7 0
37 Sand 178 * 12 58 22.2434670936 +26 30 16.111554588   15.59 14.08     M2.4 13 0
38 UCAC3 234-106607 Em* 12 58 23.2742154346 +26 30 09.090333092   14.193 12.689 12.201   M1.3 9 0
39 UCAC4 586-049332 * 13 06 58.2309689051 +27 01 13.432224970   14.932 13.642 13.241   ~ 5 0
40 UCAC4 585-048548 * 13 07 02.1690729836 +26 58 42.884245322       15.563   ~ 5 0
41 TYC 2538-147-1 Em* 13 20 39.7585039152 +32 31 55.658413992   11.82 11.18     G3 10 0
42 TYC 2538-341-1 * 13 20 47.6845461576 +32 31 10.896464424   12.46 11.55     ~ 9 0
43 UCAC4 647-050497 * 13 29 57.3187664376 +39 14 09.574735882   16.342 15.006 14.594   M1.3 5 0
44 UCAC4 647-050498 * 13 29 58.9204885667 +39 14 32.808058858   17.345 15.958 15.882   M2.3 4 0
45 2MASS J13330904+3941384 * 13 33 09.0462418302 +39 41 38.290693172           M1.6 5 0
46 2MASS J13331823+3942332 * 13 33 18.2398650084 +39 42 33.179800963           M3.5 5 0
47 BD+08 2887 PM* 14 35 14.7656221056 +08 06 53.878543668   10.46 9.59     K2 12 0
48 BD+08 2889 PM* 14 35 34.5632586576 +08 00 57.758376312   10.18 9.36     G5 11 0
49 HD 133131 ** 15 03 35.80651 -27 50 27.5520           G2V+G2V 49 0
50 2MASS J15080006+3711319 * 15 08 00.0681563638 +37 11 31.906504817           ~ 4 0
51 2MASS J15080099+3711370 * 15 08 00.9876953332 +37 11 37.145106609           M1.7 5 0
52 UCAC4 678-058349 * 15 42 32.0667944209 +45 32 47.549969354       13.441   ~ 5 0
53 UCAC4 678-058350 * 15 42 33.4525359690 +45 32 46.171386865       13.668   ~ 5 0
54 UCAC2 42419015 * 16 05 21.1220997384 +30 23 54.018134340       11.79   ~ 5 0
55 BD+30 2748 * 16 05 21.3610967688 +30 24 05.367471084   11.28 10.73     G5 4 0
56 UCAC4 605-053694 * 16 06 39.1868384907 +30 56 32.013645089   16.262 14.849 14.436   ~ 4 0
57 UCAC4 605-053700 * 16 06 52.2685660490 +30 54 27.512997666   13.905 12.908 12.629   ~ 5 0
58 UCAC4 665-062038 * 16 27 47.3037124912 +42 59 58.022832292       13.733   M1.1 6 0
59 UCAC4 665-062039 * 16 27 48.3020888332 +42 59 48.035557406   13.320 12.429 12.164   ~ 6 0
60 2MASS J16342492+4146352 PM* 16 34 24.9203038416 +41 46 35.172884496 16.5         ~ 7 0
61 TYC 3066-470-1 PM* 16 34 25.4905369080 +41 46 40.730206908   12.71 11.86     ~ 4 0
62 UCAC4 644-054290 * 16 49 22.0619539554 +38 37 31.914537206   14.652 13.402 13.185   ~ 4 0
63 BD+38 2842 * 16 49 30.1634041176 +38 35 28.398587784   10.14 9.65     F2 7 0
64 UCAC4 683-060056 PM* 16 53 59.1062076799 +46 33 08.962373202   14.042 12.881 13.283   ~ 5 0
65 UCAC4 683-060057 PM* 16 53 59.3164614902 +46 33 15.331285085   14.042 12.881 13.068   ~ 5 0
66 BD+42 3144B * 18 43 36.5749780872 +42 36 30.554493552     10.8     ~ 13 0
67 BD+42 3144 Em* 18 43 36.6392056656 +42 36 39.852026424   10.55 10.01     F5 17 0
68 2MASS J18434759+4709580 * 18 43 47.6057312832 +47 09 58.014789660           M0.7 14 0
69 2MASS J18434864+4709524 Ro* 18 43 48.6534778512 +47 09 52.500659004           M0.9 13 0
70 2MASS J18515602+4300535 * 18 51 56.0215640952 +43 00 53.363635344           ~ 15 0
71 TYC 3127-73-1 * 18 52 01.6353069000 +43 02 17.108599488   12.18 11.48     ~ 12 0
72 UCAC4 640-063439 PM* 19 03 06.0994950096 +37 55 22.142768412       13.974   M3.0Ve 26 0
73 UCAC4 640-063440 PM* 19 03 06.4065153144 +37 55 26.181721668     12.392 14.435   M3V 18 0
74 TYC 3565-106-1 Em* 19 43 42.2103364896 +49 26 40.369749180   10.38 9.64     G5V 14 0
75 UCAC4 698-071322 * 19 43 42.2715582105 +49 26 32.870217413   10.289 9.497 10.775   ~ 7 0
76 TYC 3565-560-1 * 19 45 03.4322828664 +48 49 51.584365164   11.11 10.47     G2V 16 0
77 TYC 3565-560-2 Em* 19 45 03.5424282456 +48 49 47.887698900   11.94 11.30     G5V 8 0
78 NAME CD-34 14724Ab Pl 20 55 07.9443524136 -34 08 08.007489384           ~ 51 0
79 NAME CD-34 14724Bb Pl 20 55 09.1576722384 -34 08 07.913816448           ~ 11 0
80 UCAC4 447-132392 * 21 27 35.6228798363 -00 39 41.861655017   15.785 14.328 14.085   M1.1 6 0
81 TYC 5195-1317-1 * 21 27 35.8047311664 -00 38 37.472136576   12.39 11.58 11.227   ~ 5 0

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