CDS

2017ApJ...840...87R

Query : 2017ApJ...840...87R

2017ApJ...840...87R - Astrophys. J., 840, 87-87 (2017/May-2)

Young stars with SALT.

RIEDEL A.R., ALAM M.K., RICE E.L., CRUZ K.L. and HENRY T.J.

Abstract (from CDS):

We present a spectroscopic and kinematic analysis of 79 nearby M dwarfs in 77 systems. All of these dwarfs are low-proper-motion southern hemisphere objects and were identified in a nearby star survey with a demonstrated sensitivity to young stars. Using low-resolution optical spectroscopy from the Red Side Spectrograph on the South African Large Telescope, we have determined radial velocities, H-alpha, lithium 6708 Å, and potassium 7699 Å equivalent widths linked to age and activity, and spectral types for all of our targets. Combined with astrometric information from literature sources, we identify 44 young stars. Eighteen are previously known members of moving groups within 100 pc of the Sun. Twelve are new members, including one member of the TW Hydra moving group, one member of the 32 Orionis moving group, 9 members of Tucana-Horologium, one member of Argus, and two new members of AB Doradus. We also find 14 young star systems that are not members of any known groups. The remaining 33 star systems do not appear to be young. This appears to be evidence of a new population of nearby young stars not related to the known nearby young moving groups.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): open clusters and associations: general - solar neighborhood - stars: low-mass - stars: pre-main sequence - techniques: spectroscopic - techniques: spectroscopic

VizieR on-line data: <Available at CDS (J/ApJ/840/87): table1.dat table2.dat table4.dat table5.dat table6.dat>

Simbad objects: 97

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Number of rows : 97
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 NAME THA As* 00 00 -62.0           ~ 456 0
2 LP 704-48 PM* 00 06 47.4588797204 -08 52 35.419407676     17.53     M6 14 0
3 SCR J0017-6645 Er* 00 17 23.5412251800 -66 45 12.332320668   14.014 12.494 11.943 10.00 M3.0Ve 41 0
4 GJ 2006 A Er* 00 27 50.2331765568 -32 33 06.306392340   14.33 12.95 11.79 10.29 M3.5Ve 39 0
5 GJ 2006 B Er* 00 27 50.3535388992 -32 33 24.130761048   14.66 13.25 12.04 10.48 M3.5Ve 35 0
6 1RXS J002750.4-323317 ** 00 27 50.4 -32 33 17           ~ 4 0
7 Smethells 173 Er* 00 45 28.1543761104 -51 37 33.939128316   13.17 12.30 10.9 9.73 M3V 59 0
8 RX J0106.4-6346 ** 01 06 22.683888 -63 46 39.16200   14.944 13.367 13.047   M3.0Ve 6 0
9 [PS78] 190 PM* 01 22 44.0413315128 -25 47 07.684794348   14.61 13.04 12.67 10.50 M3.0Ve 11 0
10 Barta 161 12 SB* 01 35 13.9246297464 -07 12 51.457318884   14.93 13.43 13.053 10.52 M4.3V 72 0
11 GR* 138 ** 01 35 56.494104 -13 25 46.90920   14.905 13.363 13.300 11.04 M1.5Ve 11 0
12 L 173-39 Er* 01 48 26.1783643296 -56 58 41.458975860     11.743 11.319   M1.5Ve 22 0
13 UCAC4 180-001659 PM* 01 49 05.9002248288 -54 11 57.066586368   14.607 13.143 12.821 10.846 M1.0Ve 9 0
14 ASAS J015220-5950.4 PM* 01 52 18.2984524560 -59 50 16.769469588   14.01 12.54 12.19 10.253 M2.0Ve 33 1
15 UCAC4 156-001978 Er* 02 12 58.1891095440 -58 51 18.149846112   14.410 12.925 12.552   M2.0Ve 26 0
16 UCAC4 216-002052 LM* 02 13 30.2739596712 -46 54 50.354297028   15.290 13.851 13.469   M3.0Ve 12 0
17 RX J0215.9-0929 ** 02 15 58.9436570947 -09 29 12.272711051   13.730 12.222 11.930 9.794 M2.5V 34 0
18 UCAC4 159-002053 Er* 02 20 51.3905827560 -58 23 41.109943632   15.47 13.93 13.56   M3.5Ve 22 0
19 RX J0222.7-6022 Er* 02 22 44.1541907952 -60 22 47.628540948   14.902 13.365 13.038   M3.5Ve 37 0
20 EXO 0235.2-5216 Er* 02 36 51.7013280528 -52 03 03.600913140   13.59 12.411   9.727 M2Ve 67 0
21 LP 886-73 PM* 02 39 17.6405431920 -26 49 18.806202300   15.961 14.356 14.083 11.29 M4.0Ve 11 1
22 UCAC3 112-6119 SB* 02 48 52.6040408904 -34 04 24.725972496   15.182 13.630 13.35   M3.5Ve 22 0
23 UCAC4 162-002557 PM* 02 54 06.307704 -57 46 36.02100   14.917 13.382 13.057 10.93 M2.5V 5 0
24 GSC 08057-00342 SB* 02 54 33.1653392928 -51 08 31.396648128   13.73 12.21     M1.5Ve 28 0
25 UCAC4 132-002539 Er* 02 56 47.0676441648 -63 43 02.719716276       13.966   M4.0Ve 16 0
26 LP 831-35 LM* 03 10 03.0477383544 -23 41 30.770503908   15.10 13.50 13.161   M3.5Ve 22 0
27 Cl Melotte 25 OpC 04 29 47.3 +16 56 53           ~ 2999 0
28 UCAC3 133-15653 LM* 05 10 04.268904 -23 40 40.85616   14.53 13.03 12.71   M3.0Ve 17 0
29 UCAC2 22144096 LM* 05 10 04.896576 -23 40 15.14532   14.82 13.32 12.89   M2.5Ve 17 0
30 2MASS J05194398+0535021 Y*? 05 19 43.9878965448 +05 35 02.081039892   16.62 15.13 14.83   M3 7 0
31 1RXS J052241.4-060623 * 05 22 40.6984000632 -06 06 23.956093728   15.77 14.23 13.93   M3 5 0
32 1RXS J052532.3+062534 Y*? 05 25 32.5383759120 +06 25 33.730022100   16.11 14.51 14.09   M3 10 0
33 * 32 Ori ** 05 30 47.05091 +05 56 53.2925 3.51 4.07 4.20 4.26 4.40 B5IV+B7V 188 0
34 NAME AB Dor Moving Group MGr 06 38 53.4 -42 50 04           ~ 458 0
35 HD 289002 * 06 45 13.3725491952 +02 08 14.685250596 10.06 10.62 10.44     B1 256 0
36 UCAC4 275-015806 LM* 07 11 59.168280 -35 10 15.78000   15.21 13.65 13.33   M3.0Ve 8 0
37 PM J08449-0637 ** 08 44 55.65144 -06 37 25.8924   15.010 13.376 13.007   M3.5V 7 0
38 LP 728-71 PM* 09 52 41.7789713832 -15 36 13.764834360   15.080 13.463 13.165 10.74 M3.5V 27 0
39 TWA 39 ** 10 12 09.090720 -31 24 45.28404   15.05 13.46 13.07 10.51 M3.5Ve 20 0
40 NAME UMa Region reg 11 00 +50.0           ~ 326 0
41 NAME TW Hya Association As* 11 01.9 -34 42           ~ 925 0
42 TWA 3 ** 11 10 27.894072 -37 31 51.96612   13.53 12.05 11.61 9.29 M4Ve+M4Ve 211 0
43 V* V1217 Cen BY* 11 21 05.4814169256 -38 45 16.522915140   14.04 12.58 12.34 10.515 M1Ve 78 0
44 CD-33 7795 TT* 11 31 55.2608963280 -34 36 27.203892120   12.97 11.524 11.150 9.150 M2Ve 190 0
45 TWA 30 Y*O 11 32 18.3115839696 -30 19 51.857770620       14.205 11.30 M5V 69 0
46 CD-26 8623 TT* 11 32 41.2658824800 -26 51 55.961893800   13.69 12.23 11.14 9.637 M3Ve 104 0
47 SIPS J1145-4055 PM* 11 45 35.3957134808 -40 55 58.495190443           M2.5Ve 9 0
48 LP 851-410 PM* 11 58 19.7787058416 -22 40 59.758797288   14.697 13.198 12.11 10.673 M2.5Ve 13 0
49 * eps Cha ** 11 59 37.57634 -78 13 18.6179           B9V(n) 103 0
50 UCAC3 145-136405 Y*? 12 00 01.5885011760 -17 31 30.864237960   15.347 13.841 13.498 11.05 M3.5Ve 10 0
51 TWA 23 TT* 12 07 27.3763935312 -32 47 00.242923776   14.157 12.638 12.273   M2.5Ve 70 0
52 L 758-107 PM* 12 11 16.9451125488 -19 58 21.710845920   14.286 12.622 12.335   M2.5V 34 1
53 NAME Coma Dwarf Galaxy G 12 26 59.0 +23 54 15     14.1     ~ 439 1
54 UCAC3 114-146748 PM* 12 30 53.0264745648 -33 00 50.822311968   14.07 12.56 12.19 10.23 M1.5Ve 5 0
55 UCAC4 267-063320 PM* 12 33 31.405920 -36 41 40.88616   14.98 13.44 13.12   M2.0Ve 3 0
56 HD 109573B Y*? 12 36 00.5491381248 -39 52 15.693558816         10.78 M2.5 84 0
57 HD 109573 PM* 12 36 01.0317461592 -39 52 10.220465388   5.786 5.774 7.25 5.81 A0V 619 1
58 SCR J1237-4021 Y*? 12 37 12.3845534472 -40 21 48.200666940           M2.5Ve 7 0
59 LP 853-11 LM* 12 38 37.1425915224 -27 03 35.071831224     12.439 12.040   M1.5Ve 32 0
60 UPM J1316-0858 PM* 13 16 40.5412938528 -08 58 25.613703660   16.325 14.554 14.345   M3.0Ve 4 0
61 PM J13219-1052 PM* 13 21 56.3232615384 -10 52 09.958635660   15 13.898 13.704 11.004 M3.5Ve 18 0
62 PM J14214-0916 PM* 14 21 26.2463536056 -09 16 57.902086344     13.729 13.407   M2.0V 3 0
63 PM J14215-0755 PM* 14 21 34.0635618000 -07 55 16.625444592   15.190 13.605 13.397   M4.0V 9 0
64 SCR J1425-4113AB SB* 14 25 29.1206085312 -41 13 32.338909848     12.54 11.48 10.06 M3.0Ve 12 0
65 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 750 0
66 UCAC4 252-066456 PM* 14 38 36.2445829080 -39 41 06.321445728   14.287 12.715 12.308   M1.5V 4 0
67 LP 914-6 PM* 14 40 22.1411778744 -27 52 42.390632316   15.223 13.624 12.44 10.97 M3.0Ve 17 0
68 * 108 Vir * 14 45 30.2044637184 +00 43 02.180202816   5.656 5.665     B9.5V 156 0
69 UCAC4 324-076527 PM* 15 21 50.786208 -25 14 11.67432     13.359 13.126   M1.5Ve 1 0
70 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1301 1
71 RX J1708.1-6936 ** 17 08 08.8130217024 -69 36 18.683902980   14.680 13.144 12.799   M3.0Ve 10 0
72 UCAC4 135-167756 PM* 18 16 50.8573103208 -63 05 19.557093336   14.286 12.736 12.377   M1.5V 4 0
73 1RXS J184206.5-555426 PM* 18 42 06.9567394488 -55 54 25.578666072     13.535   10.725 M3.0Ve 25 0
74 L 345-91 ** 18 48 41.34912 -46 47 07.8252   13.13 11.59 12.03 9.40 M2.5Ve 4 0
75 UCAC3 42-239515 PM* 18 56 04.3660018248 -69 22 00.392428488   14.06 12.42 12.07 9.93 M3.0V 5 0
76 WT 625 PM* 19 05 20.3153047848 -54 34 43.015250712   16.5 13.341 12.935   M3.0Ve 9 0
77 ASAS J192249-6311.1 LM* 19 22 50.7160137864 -63 10 58.033944876   14.81 13.29 12.89 10.845 M3.0Ve 17 0
78 2MASS J19243494-3442392 Y*? 19 24 34.9534729320 -34 42 39.365599464   15.878 14.300     M4.0Ve 16 0
79 2MASS J19260075-5331269 Y*? 19 26 00.7478323440 -53 31 26.966222796           M4.0Ve 6 0
80 SCR J1938-2416 Pe* 19 38 36.8834237424 -24 16 58.568400768   14.695 13.120 12.778   M2.0Ve 5 0
81 PM J19515-4025 PM* 19 51 35.9558118216 -40 25 20.949667824   15.131 13.634 13.335   M1.5Ve 7 0
82 ASAS J200412-6725.5 PM* 20 04 09.2129202864 -67 25 10.931223036   17.96 13.196 12.81 10.66 M2.5Ve 7 0
83 2MASS J20042845-3356105 PM* 20 04 28.46 -33 56 10.5   16.365 14.653     M4.0Ve 5 0
84 RX J2008.9-3520 ** 20 08 53.687304 -35 19 48.58032       13.058   M3.0Ve 7 0
85 SCR J2010-2801 SB* 20 10 00.0522555265 -28 01 41.038255343   14.49 12.99 12.52 10.09 M3.0Ve 39 0
86 LP 755-19 LM* 20 28 43.6250679792 -11 28 30.866599092     12.47 11.31 9.81 M1.5Ve 24 1
87 UCAC3 39-193865 PM* 21 07 22.4809741992 -70 56 12.653516724   15.325 13.802 13.47 11.16 M3.0Ve 7 0
88 1RXS J210736.5-130500 PM* 21 07 36.7905249432 -13 04 58.191351204   14.229 12.640 12.349   M3.0Ve 23 0
89 LEHPM 4147 PM* 21 34 52.1915212248 -63 01 08.242387464     13.481 13.136   M2.5V 7 0
90 CRTS J220439.8-071133 Mi* 22 04 39.8343645168 -07 11 33.681476796   13.58 12.12 11.51   K9.0Ve 8 0
91 2MASS J22371494-2622332 Er* 22 37 14.9472220632 -26 22 33.144614256   14.933 13.354     M3.5Ve 13 0
92 1RXS J225817.2-110434 PM* 22 58 16.4380517745 -11 04 17.070906723   14.485 12.942 12.695   M2.5V 19 0
93 LEHPM 5404 Er* 23 01 49.4703505968 -53 17 07.590870024     13.095 12.737   M2.0V 12 0
94 ASAS J232857-6802.4 Er* 23 28 57.6376130976 -68 02 34.024508916   14.51 13.04 12.59 10.624 M2.5Ve 31 0
95 LP 1035-27 Er* 23 32 00.1839220512 -39 17 37.172977584   14.45 12.92 12.663 10.28 M3.0Ve 28 0
96 G 275-71 PM* 23 35 48.7420128312 -24 19 09.253175520   15.257 13.713 13.438   M2.5V 8 0
97 LEHPM 6053 PM* 23 40 23.8376798688 -40 21 46.960833672     12.953 12.426   M2.0Ve 9 0

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2023.10.04-18:03:01

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