2017A&A...603A..74C


Query : 2017A&A...603A..74C

2017A&A...603A..74C - Astronomy and Astrophysics, volume 603A, 74-74 (2017/7-1)

Multi-epoch observations with high spatial resolution of multiple T Tauri systems.

CSEPANY G., VAN DEN ANCKER M., ABRAHAM P., KOHLER R., BRANDNER W., HORMUTH F. and HISS H.

Abstract (from CDS):

Context. In multiple pre-main-sequence systems the lifetime of circumstellar discs appears to be shorter than around single stars, and the actual dissipation process may depend on the binary parameters of the systems.
Aims. We report high spatial resolution observations of multiple T Tauri systems at optical and infrared wavelengths. We determine whether the components are gravitationally bound and orbital motion is visible, derive orbital parameters, and investigate possible correlations between the binary parameters and disc states.
Methods. We selected 18 T Tau multiple systems (16 binary and two triple systems, yielding 16+2x2=20 binary pairs) in the Taurus-Auriga star-forming region from a previous survey, with spectral types from K1 to M5 and separations from 0.22'' (31AU) to 5.8'' (814AU). We analysed data acquired in 2006-07 at Calar Alto using the AstraLux lucky imaging system, along with data from SPHERE and NACO at the VLT, and from the literature.
Results. We found ten pairs to orbit each other, five pairs that may show orbital motion, and five likely common proper motion pairs. We found no obvious correlation between the stellar parameters and binary configuration. The 10µm infra-red excess varies between 0.1 and 7.2mag (similar to the distribution in single stars, where it is between 1.7 and 9.1), implying that the presence of the binary star does not greatly influence the emission from the inner disc.
Conclusions. We have detected orbital motion in young T Tauri systems over a timescale of ~=20yr. Further observations with even longer temporal baseline will provide crucial information on the dynamics of these young stellar systems.

Abstract Copyright: © ESO, 2017

Journal keyword(s): stars: variables: T Tauri, Herbig Ae/Be - stars: pre-main sequence - stars: evolution - binaries: visual - techniques: high angular resolution - instrumentation: adaptive optics - instrumentation: adaptive optics

Simbad objects: 77

goto Full paper

goto View the references in ADS

Number of rows : 77
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 V* V1304 Tau TT* 04 09 16.9997169624 +17 16 08.226733044   14.58 13.20     M1 24 0
2 UCAC4 562-009299 LM* 04 11 05.7076874784 +22 16 31.342828512   16.683 15.135 14.798   M4eV 10 0
3 V* V1095 Tau TT* 04 13 14.1551534304 +28 19 10.668859500   15.32 13.81 13.62   M4 104 0
4 IRAS 04108+2910 TT* 04 13 57.3771335616 +29 18 19.364600844   15.17       M0e 42 0
5 V* FM Tau Or* 04 14 13.5841955640 +28 12 49.168982592 14.44   13.80 13.64   M0/2e 208 0
6 V* FN Tau TT* 04 14 14.5945463760 +28 27 58.067731188     14.70 13.68   M5e 153 0
7 V* V1098 Tau Or* 04 14 47.9897419517 +27 52 34.232647358   14.08 11.73 10.95   M1 112 0
8 UCAC4 591-011866 TT* 04 14 52.310472 +28 05 59.69616 19.87         M3.1 27 0
9 V* CY Tau Or* 04 17 33.7284990744 +28 20 46.812121656 14.52 14.68 13.40 12.59   M1.5 257 0
10 2MASS J04182147+1658470 TT* 04 18 21.4751057736 +16 58 46.998204240   14.37 13.26     K5 52 0
11 V* DD Tau Or* 04 18 31.1289436392 +28 16 29.148496644 15.94 15.49 14.10 13.76   M3.5e+M3.5e 189 0
12 V* CZ Tau Or* 04 18 31.5898864272 +28 16 58.150241544 15.96 16.60 15.70 14.77   M2 137 0
13 V* V1070 Tau Or* 04 19 41.2688488305 +27 49 48.151086734   13.75 12.25 11.14   M0 142 0
14 IRAS 04171+2756 TT* 04 20 26.0663816760 +28 04 09.048781704           M2 35 0
15 V* DE Tau Or* 04 21 55.6347850824 +27 55 06.184016436 15.18 15.13 13.80     M3Ve 246 0
16 V* FV Tau Or* 04 26 53.5368775848 +26 06 54.276020136 19.58     15.26   K5 133 2
17 CoKu FV Tau c TT* 04 26 54.4009330128 +26 06 50.945897664 20.35   16.70     M3.5e+M2.5e 67 0
18 V* DG Tau Or* 04 27 04.6921275888 +26 06 16.060169268 13.57 13.97 10.50 12.28   K6Ve 1000 1
19 HD 285778 Or* 04 27 10.5694045464 +17 50 42.660831084   11.07 10.22     K1e 127 0
20 V* IQ Tau Or* 04 29 51.5569574040 +26 06 44.859710736 15.43   13.80 12.28 11.11 M0.5 226 0
21 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1317 0
22 V* UX Tau B TT* 04 30 03.5780086776 +18 13 49.476723060     11.51 13.33   M1Ve 69 0
23 V* UX Tau C TT* 04 30 03.9883041960 +18 13 46.785195012     18.0     M5 37 0
24 V* UX Tau A TT* 04 30 03.9932216088 +18 13 49.469925504   12.92 11.15     K2Ve 344 0
25 V* UX Tau Or* 04 30 03.99626 +18 13 49.4355 11.23 11.84 10.80 9.83 9.05 K2Ve+M1Ve 339 0
26 V* FX Tau Or* 04 30 29.618064 +24 26 45.02724   15.18 13.61 13.21   M4 152 0
27 V* DK Tau A * 04 30 44.2408811328 +26 01 24.734232948           K5Ve 256 0
28 V* DK Tau Or* 04 30 44.243376 +26 01 24.65328 13.32 14.59 13.05 12.08   K7e+K7e 318 0
29 V* DK Tau B * 04 30 44.3938465800 +26 01 23.599254720           K7e 30 0
30 V* HL Tau Or* 04 31 38.5107609312 +18 13 57.859747968   15.89 14.49 14.39   K5 1357 0
31 V* XZ Tau Or* 04 31 40.0868968022 +18 13 56.642439056     10.40 13.12   M2e+M2e 431 1
32 V* HK Tau TT* 04 31 50.5715875272 +24 24 17.775307548 16.81 16.689 15.292     M0.5 329 1
33 V* HK Tau B TT* 04 31 50.6002481212 +24 24 15.502558869           ~ 79 0
34 V* V710 Tau Y*O 04 31 57.79 +18 21 37.9           ~ 160 0
35 V* V710 Tau B TT* 04 31 57.7918661040 +18 21 37.947126420   15.07 13.55 13.98   M0.5/1e 58 0
36 V* V710 Tau A TT* 04 31 57.8028713880 +18 21 34.732161936       13.87   M2/3e 163 0
37 V* UZ Tau Y*O 04 32 42.81 +25 52 31.3           M4Ve+M1/3Ve 305 0
38 V* UZ Tau B TT* 04 32 42.8118779016 +25 52 31.198173600   14.07 12.72 13.35   M1/3Ve 145 0
39 V* UZ Tau A TT* 04 32 43.0720716552 +25 52 31.013712120       13.15   M2.0e+M3.0e 115 0
40 V* V1076 Tau Or* 04 32 43.7362452744 +18 02 56.310071784   14.72       K7 90 0
41 V* V1321 Tau TT* 04 32 53.2357475304 +17 35 33.645243444     13.69     M2 50 0
42 V* GH Tau Or* 04 33 06.2186830512 +24 09 33.584489856     13.20 12.59   M3Ve 183 0
43 V* V830 Tau TT* 04 33 10.0300557048 +24 33 43.255480860   13.91 12.08 11.30   M0-1 200 1
44 IRAS 04303+2240 Y*O 04 33 19.0778932752 +22 46 34.130048412           M0.5 72 0
45 V* HN Tau B TT* 04 33 39.2226918336 +17 51 49.874296644     18.1     M4e 32 0
46 V* HN Tau Or* 04 33 39.3629421552 +17 51 52.289234280   14.76 13.40 13.05   K5e 245 0
47 Cl* Melotte 25 LH 48 Y*O 04 33 41.7274224768 +17 50 40.138966968   18.09 16.33 16.51   M5.1 23 0
48 V* DM Tau Or* 04 33 48.7336763736 +18 10 09.973460280 14.30 14.82 14.00     M2Ve 595 0
49 V* HO Tau Or* 04 35 20.2104968376 +22 32 14.561379276     15.20     M0.5 124 0
50 V* DN Tau Or* 04 35 27.3776226144 +24 14 58.910343720 13.56 12.88 11.50 11.79   M1:Ve 374 0
51 2MASS J04355881+2438404 Y*O 04 35 58.8181175280 +24 38 40.458650928           M3 13 0
52 2MASS J04360131+1726120 TT* 04 36 01.3134928776 +17 26 12.091195104           M3 11 0
53 V* HV Tau Or* 04 38 35.2904827968 +26 10 38.640143136           M1Ve 132 0
54 V* HV Tau C TT* 04 38 35.5125950280 +26 10 41.316576204         14.90 K6 93 0
55 EM* LkCa 15 Or* 04 39 17.7911622816 +22 21 03.390090984   13.01 12.03 11.61   K5:Ve 633 1
56 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4093 0
57 V* V999 Tau Or* 04 42 05.4915414000 +25 22 56.286176484 18.68 15.1 14.7     M0.6 82 0
58 V* V1000 Tau Or* 04 42 07.3303627320 +25 23 02.932953612 19.09 16.1 15.01     M2.5 77 0
59 EM* LkHA 332 Or* 04 42 07.7851647456 +25 23 11.886259920 17.90 16.51       K7+M2.5 149 1
60 V* GO Tau Or* 04 43 03.0761840904 +25 20 18.706850340   16.2 14.40     M2.3 183 0
61 GSC 01267-00433 TT* 04 45 51.3514824576 +15 55 36.661855188   14.76 13.54     ~ 22 0
62 ATO J072.7232+21.6564 V* 04 50 53.565 +21 39 23.30           ~ 7 0
63 V* GM Aur Or* 04 55 10.9815576936 +30 21 59.373771876 14.59 13.351 12.242 11.798   K3Ve 638 0
64 2MASS J04560118+3026348 Y*O 04 56 01.1850814200 +30 26 34.653012360           ~ 22 0
65 V* V1353 Tau TT* 04 56 56.5439978040 +16 00 24.839219268     14.42     M1.5 17 0
66 [KW97] 20-19 Em* 04 59 03.0450204888 +30 03 00.336468204   15.56 14.23 13.79   M2 14 0
67 V* V836 Tau TT* 05 03 06.5988375912 +25 23 19.606639488   15.00 13.49 13.48   K7/M0Ve 221 0
68 2MASS J05044139+2509544 TT* 05 04 41.3972186256 +25 09 54.583156908           M3.7 44 0
69 V* RW Aur TT* 05 07 49.5662483 +30 24 05.177426   10.86 9.60 9.95   K1/5e+K5e 763 0
70 TYC 1290-457-1 * 05 11 56.4011036232 +19 22 39.911606472   10.37 10.11     ~ 3 0
71 UCAC4 565-014998 ** 05 12 27.584904 +22 53 49.24104   15.54 14.04 13.66   M2eIV-V 8 0
72 CVSO 55 TT* 05 29 07.4275634640 +01 50 32.020010988     15.67   13.41 M2 12 0
73 NAME Ori Trapezium OpC 05 35 16.5 -05 23 14           ~ 1568 1
74 CVSO 156 TT* 05 37 47.0186347752 -00 20 07.230321672     16.01   13.73 M2 11 0
75 2MASS J05465241+0020016 TT* 05 46 52.4159850048 +00 20 01.665353868           K9 11 0
76 2MASS J05470397+0011143 TT* 05 47 03.9815243712 +00 11 14.267802876           M2 11 0
77 [SHB2004] Trumpler 37 24-1736 TT* 21 40 11.3605173840 +57 39 51.832939716 19.886   18.762 17.138 15.497 M1 8 0

To bookmark this query, right click on this link: simbad:objects in 2017A&A...603A..74C and select 'bookmark this link' or equivalent in the popup menu


2023.01.27-23:00:56

© Université de Strasbourg/CNRS

    • Contact