2016A&A...588A.123R


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.04CEST01:52:22

2016A&A...588A.123R - Astronomy and Astrophysics, volume 588A, 123-123 (2016/4-1)

The Gaia-ESO Survey: Dynamical analysis of the L1688 region in Ophiuchus.

RIGLIACO E., WILKING B., MEYER M.R., JEFFRIES R.D., COTTAAR M., FRASCA A., WRIGHT N.J., BAYO A., BONITO R., DAMIANI F., JACKSON R.J., JIMENEZ-ESTEBAN F., KALARI V.M., KLUTSCH A., LANZAFAME A.C., SACCO G., GILMORE G., RANDICH S., ALFARO E.J., BRAGAGLIA A., COSTADO M.T., FRANCIOSINI E., LARDO C., MONACO L., MORBIDELLI L., PRISINZANO L., SOUSA S.G. and ZAGGIA S.

Abstract (from CDS):

The Gaia ESO Public Spectroscopic Survey (GES) is providing the astronomical community with high-precision measurements of many stellar parameters including radial velocities (RVs) of stars belonging to several young clusters and star-forming regions. One of the main goals of the young cluster observations is to study their dynamical evolution and provide insight into their future, revealing whether they will eventually disperse to populate the field rather than evolve into bound open clusters. In this paper we report the analysis of the dynamical state of L1688 in the ρ Ophiuchi molecular cloud using the dataset provided by the GES consortium. We performed the membership selection of the more than 300 objects observed. Using the presence of the lithium absorption and the location in the Hertzspung-Russell diagram, we identify 45 already known members and two new association members. We provide accurate RVs for all 47 confirmed members. A dynamical analysis, after accounting for unresolved binaries and errors, shows that the stellar surface population of L1688 has a velocity dispersion σ∼1.14±0.35km/s that is consistent with being in virial equilibrium and is bound with a ∼80% probability. We also find a velocity gradient in the stellar surface population of ∼1.0km/s/pc in the northwest-southeast direction, which is consistent with that found for the pre-stellar dense cores, and we discuss the possibility of sequential and triggered star formation in L1688.

Abstract Copyright: © ESO, 2016

Journal keyword(s): stars: pre-main sequence - open clusters and associations: individual: L1688 - stars: kinematics and dynamics - stars: formation

Simbad objects: 63

goto Full paper

goto View the reference in ADS

Number of rows : 63

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 NGC 1333 OpC 03 29 11 +31 18.6           ~ 1219 1
2 IC 348 OpC 03 44 34 +32 09.8           ~ 1227 1
3 Cl Melotte 22 OpC 03 47 00 +24 07.0           ~ 2978 0
4 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 1977 1
5 RMC 136 Cl* 05 38 42.396 -69 06 03.36           ~ 1734 1
6 NGC 2264 OpC 06 40 58 +09 53.7     3.9     ~ 1587 1
7 NAME Cha I MoC 11 06 48 -77 18.0           ~ 968 1
8 NGC 3603 OpC 11 15 18.6 -61 15 26           ~ 940 1
9 NAME Upper Centaurus Lupus As* 15 24 -41.9           ~ 358 1
10 NAME Upper Sco Association As* 16 12 -23.4           ~ 1021 1
11 NAME ASSOC II SCO As* 16 15 -24.2           ~ 1120 1
12 [EWM2011] 4-14 * 16 24 44.8594100307 -25 00 20.606388774       17.38 15.74 M2-M4 2 0
13 WSB 18 TT* 16 24 59.74128 -24 56 00.8340   18.9   15.71 13.78 M2.5-M4.5 27 0
14 2MASS J16251469-2456069 TT* 16 25 14.7078336822 -24 56 07.069271136     14.41 13.05 11.75 K7 17 0
15 2MASS J16252243-2402056 TT* 16 25 22.4428048765 -24 02 05.906365203     16.02 14.45 12.84 ~ 12 0
16 BKLT J162524-241542 TT* 16 25 24.2959909853 -24 15 40.159151546       16.49 14.46 M5 8 0
17 IRAS 16226-2420 TT* 16 25 39.5828608249 -24 26 34.889477995       16.78 14.84 M2 36 0
18 BKLT J162547-243738 TT* 16 25 47.6805530317 -24 37 39.488706182     16.37 14.77 13.05 M3.5 16 0
19 BKLT J162558-245245 TT* 16 25 58.94472 -24 52 48.3024       15.77 13.84 M4.5 10 0
20 [C81] 8 TT* 16 25 59.6610538664 -24 21 22.381551315       15.03 13.00 M5.5 24 0
21 [WMR2005] 2-19 TT* 16 26 05.4544169638 -23 55 41.349552488       15.85 13.75 M4.5 4 0
22 DoAr 24 TT* 16 26 17.0747576971 -24 20 21.594542024   16.06 14.21 14.02 11.57 K7.5V 100 1
23 RX J1626.3-2407 TT* 16 26 18.7882334795 -24 07 19.002771724       14.86 13.06 M3.5 16 0
24 Elia 2-24 TT* 16 26 24.0896068058 -24 16 13.456681632   16.3 14.40 15.81 13.97 K6 126 1
25 WSB 34 TT* 16 26 32.9896994936 -24 00 16.774108642   18.5   16.02 14.13 M4.5 10 0
26 GSS 35 TT* 16 26 34.1750440278 -24 23 28.331873112     16.53 14.75 12.51 B3 214 1
27 BKLT J162643-241112 TT* 16 26 43.1193959155 -24 11 09.461104238       14.83 13.30 K8 12 0
28 [GY92] 112 TT* 16 26 44.3013631817 -24 43 14.063146447     17.07 15.15 13.37 M3 31 0
29 BKLT J162644-244711 TT* 16 26 44.4214830718 -24 47 13.727009090       15.72 13.88 M4.5 13 0
30 [GY92] 122 Y*O 16 26 47.0549335086 -24 44 29.783806566       17.41 15.19 M4.5 18 0
31 WSB 40 TT* 16 26 48.6594317309 -23 56 34.139564007       14.45 12.92 K5.5 26 0
32 BKLT J162650-241354 Y*O 16 26 50.4919594909 -24 13 52.250275438       16.82 14.78 M4.5 11 0
33 EM* SR 24A TT* 16 26 58.5027167089 -24 45 36.698300286       14.15 12.87 K1 91 0
34 BKLT J162703-240934 TT* 16 27 04.0628448331 -24 09 31.829363785       15.74 14.06 M0-M2 10 0
35 [GY92] 193 Y*O 16 27 04.5152139620 -24 42 59.673480203       16.69 14.97 K6-M1 28 0
36 [GY92] 194 Y*O 16 27 04.5600221372 -24 42 14.018532542       17.54 15.66 K8-M0 26 0
37 [GY92] 204 Y*O 16 27 06.5924723987 -24 41 48.883697790       17.57 15.43 M5 81 0
38 BKLT J162715-245137 TT* 16 27 15.1288179688 -24 51 38.809044111   16.9 15.02 13.86 12.38 M2 56 1
39 WSB 48 TT* 16 27 18.3583335118 -24 54 53.710641892   18.5   14.70 13.23 M3.75 18 0
40 WSB 49 TT* 16 27 22.9689016105 -24 48 07.138242529   16.9   15.06 13.31 M4.25 37 0
41 YLW 18 TT* 16 27 33.1158717225 -24 41 15.261194836       17.66 15.65 K5-K6 63 0
42 [GY92] 295 TT* 16 27 35.2624006505 -24 38 33.439591125       16.16 14.08 M4.5 33 0
43 [WMR2005] 4-54 TT* 16 27 37.9765424608 -23 57 23.930376503       15.45 13.71 M2.5 5 0
44 Haro 1-11 TT* 16 27 38.3300429190 -23 57 32.512435252   17.3   13.66 12.30 K6 31 1
45 2MASS J16273833-2404013 TT* 16 27 38.3427098305 -24 04 01.330392016       14.99 13.41 K5-K6 12 0
46 DoAr 33 TT* 16 27 39.0127002068 -23 58 18.708241197   15.7   13.24 12.02 K4 47 0
47 [WMR2005] 2-34 TT* 16 27 41.8791173793 -24 04 27.216161337       15.21 13.39 M2 8 0
48 BKLT J162800-244819 TT* 16 27 59.9579948843 -24 48 19.320324261   17.3 17.42 15.83 13.44 M4.75 27 0
49 BKLT J162800-245340 TT* 16 28 00.0971935079 -24 53 42.794224043       15.56 13.51 M5 12 0
50 [WMR2005] 2-3 TT* 16 28 00.8077412592 -24 00 51.784773709       15.74 13.89 M3 5 0
51 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3027 0
52 [WMR2005] 2-21 TT* 16 28 11.01072 -24 06 18.1116       16.40 14.27 M3.75 8 0
53 ISO-Oph 195 TT* 16 28 16.7367246915 -24 05 14.439072530       15.59 13.91 K5-K6 31 0
54 [WMR2005] 3-12 TT* 16 28 19.2256950316 -24 57 34.139122426       15.21 13.54 M3 7 0
55 BKLT J162821-242155 TT* 16 28 21.5213731564 -24 21 55.064182194       16.97 14.95 M2.5 14 0
56 NAME EM* SR 20W TT* 16 28 23.3455227878 -24 22 40.663704708     15.79 16.29 14.60 K5 25 0
57 BKLT J162824-240934 TT* 16 28 24.3086116998 -24 09 31.855967154       16.52 14.60 M2 8 0
58 BKLT J162824-243543 TT* 16 28 24.8065260842 -24 35 43.499956359       16.78 14.79 M5 10 0
59 BKLT J162843-242253 TT* 16 28 43.0590118508 -24 22 52.207112294       16.54 14.47 M4.75 10 0
60 2MASS J16290321-2427488 Y*O 16 29 03.2201203089 -24 27 48.835305347       15.14 13.19 M3.5-M5.5 5 0
61 BKLT J162904-245140 TT* 16 29 03.9331698637 -24 51 41.471691244       16.53 14.49 M5.5 8 0
62 Ass Cyg OB 2 As* 20 33.2 +41 19           ~ 790 0
63 NAME Local Group GrG ~ ~           ~ 6970 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2016A&A...588A.123R and select 'bookmark this link' or equivalent in the popup menu


2020.07.04-01:52:22

© Université de Strasbourg/CNRS

    • Contact