2018MNRAS.480.5099K

Query : 2018MNRAS.480.5099K

2018MNRAS.480.5099K - Mon. Not. R. Astron. Soc., 480, 5099-5112 (2018/November-2)

Multiplicity of disc-bearing stars in Upper Scorpius and Upper Centaurus-Lupus.

KURUWITA R.L., IRELAND M., RIZZUTO A., BENTO J. and FEDERRATH C.

Abstract (from CDS):

We present observations of disc-bearing stars in Upper Scorpius (US) and Upper Centaurus-Lupus (UCL) with moderate resolution spectroscopy in order to determine the influence of multiplicity on disc persistence after ∼5-20 Myr. Discs were identified using infrared (IR) excess from the Wide-field Infrared Survey Explorer (WISE) survey. Our survey consists of 55 US members and 28 UCL members, using spatial and kinematic information to assign a probability of membership. Spectra are gathered from the ANU 2.3 m telescope using the Wide Field Spectrograph (WiFeS) to detect radial velocity variations that indicate the presence of a companion. We identify two double-lined spectroscopic binaries, both of which have strong IR excess. We find the binary fraction of disc-bearing stars in US and UCL for periods up to 20 yr to be 0.06^+0.07_–0.02 and 0.13^+0.06_–0.03, respectively. Based on the multiplicity of field stars, we obtain an expected binary fraction of ∼0.12^+0.02_–0.01. The determined binary fractions for disc-bearing stars do not vary significantly from the field, suggesting that overall lifetime of discs may not differ between single and binary star systems.

Journal keyword(s): techniques: radial velocities - protoplanetary discs - binaries: spectroscopic - stars: formation - stars: pre-main-sequence

VizieR on-line data: <Available at CDS (J/MNRAS/480/5099): table1.dat tablea1.dat tablea3.dat>

Errata: erratum vol. 487, p. 5475 (2019)

Simbad objects: 126

Full paper

View the references in ADS

Number of rows : 126

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	HD 283	PM*	00 07 32.5417198940	-23 49 07.398459374		9.50	8.70			G9.5V	83	0
2	HD 1461	PM*	00 18 41.8676757921	-08 03 10.803829898		7.14	6.46			G3VFe0.5	413	1
3	HD 2025	PM*	00 24 25.9332783964	-27 01 36.380637008	9.56	8.861	7.916	7.365	6.894	K3V	127	0
4	HD 19034	PM*	03 03 38.9589321782	-05 39 58.669474998	8.89	8.76	8.09			G5V	151	0
5	BD-11 916	PM*	04 37 41.8657785528	-11 02 19.972109364	13.041	11.838	10.331	9.327	8.137	M1V	171	0
6	2MASS J04542368+1709534	TT*	04 54 23.6741496384	+17 09 53.495824464			13.5			M3.4	62	1
7	HD 32147	PM*	05 00 48.9993452248	-05 45 13.224327192	8.27	7.27	6.21	5.36	4.87	K3+V	500	1
8	HD 35974	PM*	05 27 06.6547405704	-31 33 58.224141252		7.77	7.19			G1V	61	0
9	HD 37213	PM*	05 35 41.0836308240	-27 37 14.975681268		8.93	8.22			G5V	63	0
10	BD+05 1668	PM*	07 27 24.4989685603	+05 13 32.841491057	12.558	11.443	9.872	8.699	7.161	M3.5V	477	0
11	G 113-20	PM*	08 16 07.9813123847	+01 18 09.265205331	12.824	11.63	10.091	9.071	7.851	M2.0V	163	0
12	L 678-39	PM*	09 36 01.6372169407	-21 39 38.877606712	13.647	12.48	10.906	9.858	8.577	M2.5V	213	0
13	BD-03 2870	PM*	10 12 17.6682499584	-03 44 44.392042932	11.941	10.757	9.264	8.258	7.066	M2V	283	1
14	NAME Cha 1	MoC	11 06 48	-77 18.0						~	1266	1
15	HD 98800B	SB*	11 22 05.2890267409	-24 46 38.767455498		11.18	9.92			~	144	1
16	CD-31 9113	PM*	11 35 26.9477670462	-32 32 23.884215079	12.508	11.322	9.813	8.821	7.664	M2V	188	1
17	HD 114783	PM*	13 12 43.7855575272	-02 15 54.130663296	9.137	8.469	7.550	7.053	6.627	K1V	214	1
18	HD 120467	PM*	13 49 44.8063802009	-22 06 39.931905725	10.69	9.427	8.166	7.394	6.777	K6Va	139	1
19	UCAC4 231-071021	Y*?	13 54 35.6143395624	-43 56 48.074506296				15.457		~	6	0
20	UCAC4 220-079787	Y*?	14 10 59.6863476240	-46 11 33.842105196				15.392		~	3	0
21	2MASS J14145241-5722539	Y*?	14 14 52.4142252448	-57 22 53.815536856						~	1	0
22	UCAC4 248-066261	Y*?	14 16 03.1048209432	-40 30 34.246403352		16.746	15.190	14.667		~	3	0
23	2MASS J14273013-6042177	Y*?	14 27 30.1362932148	-60 42 17.771441026						~	1	0
24	UCAC4 222-082464	Y*?	14 34 36.6250758144	-45 45 59.988202236		17.389	15.870	15.434		~	3	0
25	HD 128428	PM*	14 36 53.6889489167	-04 16 44.359906633		8.575	7.809	8.73		G6IV	67	0
26	UCAC4 261-074632	Y*?	14 41 37.6610392032	-37 56 34.413402804		17.254	15.734	15.570		~	4	0
27	2MASS J14441562-4032272	Y*?	14 44 15.6291001004	-40 32 27.406276141						~	1	0
28	2MASS J14505572-3504228	Y*?	14 50 55.7348018955	-35 04 22.926238906						~	4	0
29	HD 130992	PM*	14 51 40.4651941058	-24 18 14.876313383	9.695	8.825	7.805	7.216	6.724	K3.5V	151	0
30	NAME Upper Centaurus Lupus	MGr	15 24	-41.9						~	567	1
31	2MASS J15243561-3930432	Y*?	15 24 35.6122013195	-39 30 43.307745447						~	1	0
32	2MASS J15291748-4636285	Y*?	15 29 17.4864550475	-46 36 28.609689953						~	1	0
33	2MASS J15292388-3411545	Y*?	15 29 23.88360	-34 11 54.5244						~	1	0
34	2MASS J15303357-3246190	Y*?	15 30 33.5724440166	-32 46 19.093567047						~	2	0
35	IRAS 15340-4008	SB*	15 37 22.6975941576	-40 17 59.607992796		11.54	10.54			~	15	0
36	2MASS J15450950-1540287	Y*?	15 45 09.4995022718	-15 40 28.852459846						~	1	0
37	UCAC4 292-083775	Y*?	15 46 25.8184926552	-31 43 19.381688868				15.89		~	4	0
38	2MASS J15482445-2235495	Or*	15 48 24.4602485712	-22 35 49.617848796						M3.75	12	0
39	2MASS J15491976-2257296	Y*O	15 49 19.7609184240	-22 57 29.636585424						M4.5	6	0
40	Sz 76	TT*	15 49 30.7355449512	-35 49 51.413284020		16.611	15.095	14.710		M3.2	58	0
41	2MASS J15520884-2723456	Or*	15 52 08.8416161952	-27 23 45.790796832						M4	8	0
42	UCAC4 251-083555	Y*O	15 52 13.4462506176	-39 56 08.259569016				15.526		~	6	0
43	HD 141885	*	15 52 52.0811827536	-37 23 54.913870608		8.37	7.73			G3V	38	0
44	2MASS J15564244-2039339	Or*	15 56 42.4469156592	-20 39 34.139001816				15.51	12.86	M3.5e	24	0
45	V* V1148 Sco	BY*	15 57 34.3068411912	-23 21 12.268691748					11.27	M1IVe	47	0
46	1RXS J155744.8-414353	Y*O	15 57 43.6205898312	-41 43 37.830081324		14.02	12.65	12.25		K6IVe	9	0
47	UCAC4 326-078840	Or*	15 57 54.4409803248	-24 50 42.416111796		13.511	12.175	11.762		K	19	0
48	IRAS 15551-1806	Y*O	15 57 58.9216478880	-18 14 59.619378732		14.49	13.04	12.63	11.26	K7	16	0
49	CD-23 12602	TT*	15 58 12.7076690664	-23 28 36.528700008		11.16	10.36	9.9		G9V	54	0
50	UCAC4 248-086934	**	15 58 20.396976	-40 33 05.82408		16.114	14.755	14.213		~	2	0
51	UScoCTIO 21	Or*	15 58 36.2013568320	-19 46 13.518871356						M4.0e	23	0
52	UScoCTIO 25	Or*	15 59 44.2631452512	-20 29 23.359209324						M5.0e	23	0
53	2MASS J15594460-2155250	Or*	15 59 44.6038290312	-21 55 25.079374056						M4.75	9	0
54	UScoCTIO 19	Or*	16 01 13.9717017672	-25 16 28.687475784		17.64	15.96	15.88	12.95	M4.0e	19	0
55	UScoCTIO 7	Y*O	16 01 29.029776	-25 09 07.03116		16.69	15.55	15.27		M3.5e	18	0
56	UScoCTIO 12	TT*	16 02 05.1771315432	-23 31 06.987210852						M4.5V	26	0
57	2MASS J16023587-2320170	Or*	16 02 35.8771402608	-23 20 17.061343368						M3.5e	24	0
58	UCAC4 248-088284	Y*O	16 03 30.7133525016	-40 24 33.901449912		16.958	15.577	15.086		~	7	0
59	[M81] I-490	Or*	16 04 18.9135130896	-24 30 39.860961120		15.56	13.87	13.50	11.23	M2.5e	28	0
60	2MASS J16050647-1734020	Or*	16 05 06.4700802336	-17 34 02.024834340						M4.75	10	0
61	2MASS J16052157-1821412	TT*	16 05 21.5888026728	-18 21 41.442439572			13.5			K4.5e	30	0
62	UCAC4 277-083970	Y*?	16 05 44.0389002408	-34 37 59.056722804				12.838		~	3	0
63	UCAC4 360-077486	Or*	16 06 23.8206804168	-18 07 18.463343628				15.95		M4.25	18	0
64	[PGZ2001] J160643.8-190805	Or*	16 06 43.8620267616	-19 08 05.549732448						K6e	55	0
65	2MASS J16064794-1841437	Or*	16 06 47.9402925696	-18 41 43.790955180						M0.0e	25	0
66	HD 144585	PM*	16 07 03.3696573456	-14 04 16.671141984	7.22	6.98	6.32			G2V	211	0
67	UCAC4 290-088054	Y*?	16 07 08.5207924440	-32 01 01.019873964		16.044	14.467	14.390		~	3	0
68	2MASS J16071403-1702425	TT*	16 07 14.0227495152	-17 02 42.591641460						M3.5V	19	0
69	Sz 95	TT*	16 07 52.3109740056	-38 58 06.091698756		16.714	15.189	14.934	12.53	~	66	0
70	IRAS 16051-3820	Or*	16 08 30.6994064064	-38 28 26.846324004		11.89	11.15	10.67		K2	89	0
71	2MASS J16093164-2229224	Or*	16 09 31.6524031176	-22 29 22.474538268						M2.0e	19	0
72	2MASS J16100501-2132318	TT*	16 10 05.0202377568	-21 32 31.908016716			13.5			K7.5V	33	0
73	2MASS J16101445-1951377	Or*	16 10 14.4588530568	-19 51 37.516423824						M4.0e	19	0
74	2MASS J16101903-2124251	Or*	16 10 19.0348133184	-21 24 25.198190028						M4.5	14	0
75	UCAC4 348-080947	Y*O	16 10 43.922544	-20 32 02.56020				16.09		M4.5	9	0
76	2MASS J16112601-2631558	Or*	16 11 26.0071681176	-26 31 56.242005780						M2.0e	14	0
77	NAME Upper Sco Association	As*	16 12	-23.4						~	1586	1
78	2MASS J16120505-2043404	Or*	16 12 05.0576769744	-20 43 40.554619788						M1.0e	15	0
79	UCAC4 300-090317	Or*	16 12 06.6799175712	-30 10 27.077924712		14.676	13.309	13.100		M0.5e	27	0
80	2MASS J16132190-2136136	Or*	16 13 21.9080625000	-21 36 13.743883764						M1.5e	24	0
81	HD 145809	PM*	16 13 40.3431828480	-21 23 59.859284388		7.28	6.69			G2VFe-0.7	111	0
82	CRTS J161452.4-251352	Y*O	16 14 52.416432	-25 13 52.46112				15.63		M3.5e	16	0
83	NAME Upper Sco-Cen	As*	16 15	-24.2						~	1497	1
84	ATO J243.8841-20.1733	Or*	16 15 32.1822993120	-20 10 24.184734024			13.98			M1.5e	19	0
85	UCAC4 278-089976	Y*?	16 15 35.0492321136	-34 32 01.355208036				13.756		~	2	0
86	2MASS J16164689-2033323	Or*	16 16 46.8950839920	-20 33 32.407701012						M4	12	0
87	GSC 06210-00823	Or*	16 16 50.8311159984	-20 09 08.113071852			14.58			M4.25	9	0
88	2MASS J16171889-2230017	Or*	16 17 18.8908873200	-22 30 02.195332164						M4.75	6	0
89	2MASS J16174904-3255144	Y*?	16 17 49.0629951851	-32 55 13.694023146						~	2	0
90	2MASS J16180659-4126325	Y*?	16 18 06.59928	-41 26 32.5248						~	1	0
91	2MASS J16191008-2432088	Or*	16 19 10.0884747696	-24 32 08.927232324						M3.5	15	0
92	2MASS J16200616-2212385	Or*	16 20 06.1594313832	-22 12 38.509817760						M3.5e	24	0
93	UCAC4 338-082365	Or*	16 20 22.9162653312	-22 27 04.192459704				15.303		M3.5	20	0
94	HD 147283	Y*?	16 21 57.6880496472	-24 29 43.516609908	11.71	11.08	10.27			A1IV	44	0
95	2MASS J16220199-2522195	Y*?	16 22 01.9984616286	-25 22 19.600991668						~	1	0
96	2MASS J16221099-4841374	Y*?	16 22 10.9979358132	-48 41 37.548005926						~	1	0
97	UCAC4 274-087103	Y*O	16 22 39.5628155904	-35 13 05.989207008						~	6	0
98	2MASS J16252883-2607538	Or*	16 25 28.8201811728	-26 07 53.863477068						M2.5e	21	0
99	2MASS J16271273-2504017	Or*	16 27 12.7350099384	-25 04 01.797767472						M1.0e	24	0
100	UCAC4 349-079539	Y*?	16 28 34.9760941032	-20 19 11.235732024				14.042		~	4	0
101	2MASS J16292883-2500248	Y*?	16 29 28.8365898561	-25 00 24.984225341						~	1	0
102	UCAC4 238-106125	Y*?	16 30 03.7158737784	-42 26 58.698520728		14.787	13.402	13.132		~	6	0
103	CD-29 12588	Or*	16 30 37.9549278024	-29 54 22.353874056		12.06	10.942		9.773	K2Ve	18	0
104	2MASS J16304211-2623035	Y*O	16 30 42.1242110760	-26 23 03.914355048						M4	9	0
105	NAME ROXs 42Bb	Pl	16 31 14.93	-24 32 43.7						M8-L0	62	0
106	2MASS J16333496-1832540	Or*	16 33 34.9743728760	-18 32 53.998402164						M3.5e	13	0
107	UCAC4 336-083259	Y*?	16 35 11.7340946616	-22 57 28.197815400						~	4	0
108	2MASS J16352722-4325278	Y*?	16 35 27.22536	-43 25 27.8148						~	1	0
109	2MASS J16364650-2502032	Or*	16 36 46.5063007944	-25 02 03.281639820						M2.75	12	0
110	UCAC4 325-088506	Y*O	16 45 28.9646842512	-25 02 47.581781136				15.851		M4.75	6	0
111	UCAC4 287-097152	Y*?	16 46 56.0336359008	-32 42 53.960871708		14.214	12.925	12.536		~	7	0
112	V* AK Sco	Ae*	16 54 44.8491575376	-36 53 18.566586456	9.80	9.63	9.00			F5V	304	1
113	HD 153458	PM*	17 00 01.6586656656	-07 31 53.974137864		8.63	7.98			G5V	77	0
114	HD 156826	PM*	17 19 59.5532828136	-05 55 03.023193900		7.17	6.32			K0V	99	0
115	HD 319139	SB*	18 14 10.4818675368	-32 47 34.516836060		11.47	10.68		9.11	K5+K7	423	0
116	HD 170493	PM*	18 29 52.4075052264	-01 49 05.170343700	10.187	9.11	8.004	7.374	6.871	K4V	139	0
117	CD-23 14742	PM*	18 49 49.3637762005	-23 50 10.447375350	13.528	12.19	10.43	10.23	7.703	M3.5Ve	421	0
118	Kepler-47b	Pl	19 41 11.4983203032	+46 55 13.707336288						~	86	1
119	Kepler-47c	Pl	19 41 11.4983203032	+46 55 13.707336288						~	79	1
120	Kepler-64	EB*	19 52 51.6169691968	+39 57 18.370395541						F0	107	1
121	HD 189625	PM*	20 01 32.8001816928	-16 52 08.392879272		7.99	7.33			G5V	100	0
122	HD 196885b	Pl	20 39 51.8748403032	+11 14 58.700231052						~	50	1
123	HD 196761	PM*	20 40 11.7551137131	-23 46 25.918619793		7.09	6.37			G7.5IV-V	215	0
124	HD 198802	**	20 53 05.5980936264	-11 34 25.154653908		7.037	6.389			G5V	104	0
125	* gam Cep b	Pl	23 39 20.9104133784	+77 37 56.510781384						~	90	1
126	NAME Sco-Cen-Lup-Cru Complex	?	~	~						~	7	0

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