2016A&A...591L...3M


Query : 2016A&A...591L...3M

2016A&A...591L...3M - Astronomy and Astrophysics, volume 591, L3-3 (2016/7-1)

Evidence for a correlation between mass accretion rates onto young stars and the mass of their protoplanetary disks.

MANARA C.F., ROSOTTI G., TESTI L., NATTA A., ALCALA J.M., WILLIAMS J.P., ANSDELL M., MIOTELLO A., VAN DER MAREL N., TAZZARI M., CARPENTER J., GUIDI G., MATHEWS G.S., OLIVEIRA I., PRUSTI T. and VAN DISHOECK E.F.

Abstract (from CDS):

A relation between the mass accretion rate onto the central young star and the mass of the surrounding protoplanetary disk has long been theoretically predicted and observationally sought. For the first time, we have accurately and homogeneously determined the photospheric parameters, mass accretion rate, and disk mass for an essentially complete sample of young stars with disks in the Lupus clouds. Our work combines the results of surveys conducted with VLT/X-Shooter and ALMA. With this dataset we are able to test a basic prediction of viscous accretion theory, the existence of a linear relation between the mass accretion rate onto the central star and the total disk mass. We find a correlation between the mass accretion rate and the disk dust mass, with a ratio that is roughly consistent with the expected viscous timescale when assuming an interstellar medium gas-to-dust ratio. This confirms that mass accretion rates are related to the properties of the outer disk. We find no correlation between mass accretion rates and the disk mass measured by CO isotopologues emission lines, possibly owing to the small number of measured disk gas masses. This suggests that the mm-sized dust mass better traces the total disk mass and that masses derived from CO may be underestimated, at least in some cases.

Abstract Copyright: © ESO, 2016

Journal keyword(s): accretion, accretion disks - protoplanetary disks - stars: pre-main sequence - stars: variables: T Tauri, Herbig Ae/Be

Simbad objects: 64

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Number of rows : 64
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 Sz 65 Or* 15 39 27.7716659160 -34 46 17.211087984   13.11 12.13 11.33 10.76 K7 90 0
2 Sz 66 TT* 15 39 28.2828956688 -34 46 18.082914564   14.9   14.51 12.56 M2 51 0
3 2MASS J15445789-3423392 Y*O 15 44 57.8922421008 -34 23 39.355357344   18.38 17.74 17.29 15.28 M5.0e 30 0
4 2MASS J15450887-3417333 Y*O 15 45 08.8742780880 -34 17 33.454839372       18.73   M5.5 39 0
5 CD-33 10685 Or* 15 45 12.8678037432 -34 17 30.644403036 12.47 11.56 10.224 9.60 8.685 K3Ve 254 1
6 V* HW Lup Or* 15 45 17.4118414392 -34 18 28.286447220   17.41 16.25     M1 63 0
7 V* GW Lup Or* 15 46 44.7290527536 -34 30 35.677420056   13.8       M1.5e 117 0
8 V* HM Lup Or* 15 47 50.6288371920 -35 28 35.404076028   15.96       M3e 73 0
9 THA 15-5 TT* 15 47 56.9427182064 -35 14 34.796420412   14.5 16.2     K7e 77 0
10 V* HN Lup Or* 15 48 05.2154956876 -35 15 53.295162846   16.083 14.377 13.726   M3.5e 57 0
11 THA 15-10 TT* 15 55 50.289888 -38 01 33.50928   16.24 14.88 14.74   M5.1 34 0
12 V* RU Lup TT* 15 56 42.3108692112 -37 49 15.473946900 9.27 10.07 9.60     K7/M0e 433 0
13 Sz 84 TT* 15 58 02.5198436808 -37 36 02.729938536   14.3       M5.0e 65 0
14 WRAY 15-1400 TT* 15 59 16.4717314824 -41 57 10.300018176   13.5 12.0     K7IVe 86 0
15 2MASS J15592523-4235066 Y*O 15 59 25.2340111704 -42 35 06.571838868   17.42 16.82     M5 21 0
16 V* RY Lup Or* 15 59 28.3864710696 -40 21 51.249496176   12.62 9.90     G8/K1IV-V 205 0
17 UCAC3 96-205744 Y*O 16 00 00.6018563304 -42 21 56.821951152   17.29 15.85 15.25 13.43 M4.5 32 0
18 UCAC3 96-205752 Y*O 16 00 02.3583827328 -42 22 14.600258148   16.86 15.46 14.98 13.59 M4 40 0
19 2MASS J16002612-4153553 Y*O 16 00 26.1203153232 -41 53 55.371567156   16.57 16.45 15.70 13.80 M5.25 31 0
20 Sz 130 TT* 16 00 31.0374709944 -41 43 36.988516560   15.82 14.71 13.56 12.46 M1.5 52 0
21 V* MY Lup TT* 16 00 44.5202267160 -41 55 30.935126748   12.64 12.17 11.06   K0 93 0
22 Sz 131 Y*O 16 00 49.4333360352 -41 30 03.916812096   17.51 16.13 14.60 12.92 M2 38 0
23 Sz 133 Y*O 16 03 29.3848659360 -41 40 01.765426548   17.77 16.60 15.78 15.04 K2 43 0
24 V* HO Lup Or* 16 07 00.603672 -39 02 19.49316   13.94 13.17 13.03   M1e 64 0
25 THA 15-21 TT* 16 07 10.0694468880 -39 11 03.260683896   15.28 13.70 13.70 12.49 K7-M0 66 0
26 2MASS J16073773-3921388 Y*O 16 07 37.7327699304 -39 21 38.745260928   18.38 17.4 17.12 15.68 M5.5e 37 0
27 Sz 95 TT* 16 07 52.3109740056 -38 58 06.091698756   16.39 14.57 14.25 12.53 ~ 48 0
28 2MASS J16080017-3902595 Y*O 16 08 00.1718615064 -39 02 59.504573976   16.94 17.01 16.72 14.31 M5.5e 41 0
29 Sz 96 TT* 16 08 12.6308620920 -39 08 33.470354256   14.80 13.43 13.69 11.84 ~ 73 0
30 2MASS J16081497-3857145 Y*O 16 08 14.9753942112 -38 57 14.409165492       18.93 17.42 4.75 38 0
31 THA 15-24 Y*O 16 08 21.8037909864 -39 04 21.491863824   16.18 14.61 14.67 12.92 M3 53 0
32 V* V1279 Sco Or* 16 08 22.4935277520 -39 04 46.427612052   14.99 13.66 11.70 11.21 M0.4 108 1
33 THA 15-25 Y*O 16 08 24.0422612880 -39 05 49.433170740   15.49 16.00 15.39 14.17 M3.5 44 0
34 THA 15-26 Y*O 16 08 25.7633674272 -39 06 01.247043888   16.62 15.43 14.97 13.12 M5 61 0
35 SSTc2d J160828.1-391310 Y*O 16 08 28.1226362485 -39 13 09.781567277   17.45   17.76 16.13 M6.5 27 0
36 THA 15-29 Y*O 16 08 30.2687378568 -39 06 11.176056000   14.8 11.14 15.18 13.15 M4 58 0
37 IRAS 16051-3820 Y*O 16 08 30.6994064064 -38 28 26.846324004   11.89 11.15 10.67   K2 61 0
38 THA 15-30 TT* 16 08 30.8142130416 -39 05 48.837746436   15.2 15.25 13.96 13.57 M5 55 0
39 Sz 106 Y*O 16 08 39.7597402848 -39 06 25.321212288   15.1   15.00 14.66 M2.5 43 0
40 NAME Sz 108B Y*O 16 08 42.8838783888 -39 06 14.692839804       17.71 14.39 M5 34 0
41 IRAS 16054-3857 Y*O 16 08 49.3987083072 -39 05 39.447341844   16.76 17.71 15.89 14.24 M4.5 49 0
42 V* V1192 Sco Or* 16 08 51.4348063536 -39 05 30.460358652     21.9 18.97 18.18 M5 68 0
43 V* V1193 Sco Or* 16 08 51.5693655096 -39 03 17.707587264   15.27 14.58 13.72 12.28 M4.5 64 0
44 UCAC3 102-194910 Y*O 16 08 53.2420957464 -39 14 40.160339952   17.53 16.35 15.35 13.52 M3 44 1
45 2MASS J16085373-3914367 Y*O 16 08 53.7357629040 -39 14 36.799256184       21.73 18.76 M5.5 33 0
46 THA 15-33 TT* 16 08 54.6849382512 -39 37 43.145069664   15.34 13.98 13.29   M1IVe 80 0
47 2MASS J16085529-3848481 Y*O 16 08 55.2899613672 -38 48 48.174613416   17.36   17.24 15.24 M6.5 34 1
48 Sz 112 Y*O 16 08 55.5289090032 -39 02 33.941081832   16.62 15.39 14.78 12.93 M6 62 0
49 THA 15-34 Y*O 16 08 57.8026653048 -39 02 22.853868252   17.46 16.50 16.64 14.65 M6 55 0
50 2MASS J16090141-3925119 Y*O 16 09 01.4148377304 -39 25 11.923332420   16.92 15.31 15.04 13.48 M4 43 0
51 THA 15-35 Or* 16 09 01.8486544824 -39 05 12.414717240   15.33 14.12 14.35 12.54 M5.5 94 0
52 Sz 115 TT* 16 09 06.2137580736 -39 08 51.873869400   16.88 15.48 15.09 13.12 ~ 46 0
53 2MASS J16092697-3836269 Y*O 16 09 26.9795990952 -38 36 26.933727420   17.55   16.31 14.74 M4.5 27 0
54 THA 15-37 Y*O 16 09 44.3607357216 -39 13 30.167581764   15.84 14.59 14.20 12.38 M2 55 0
55 Sz 118 Y*O 16 09 48.6562295568 -39 11 16.847425032   18.32 16.90 16.61 15.00 K6 58 0
56 2MASS J16095628-3859518 Y*O 16 09 56.2954845696 -38 59 51.581549796   17.37 18.0 16.49 15.28 M6.0e 44 0
57 SONYC Lup3-29 Y*O 16 10 01.3326378528 -39 06 44.815987296   18.38 17.42 17.90 15.27 M7.5 25 0
58 2MASS J16101857-3836125 Y*O 16 10 18.5677223424 -38 36 12.598346628   18.37 16.63 16.67 14.70 M5 26 0
59 2MASS J16101984-3836065 Y*O 16 10 19.8333629688 -38 36 06.586243272   17.39   16.76 15.57 M6.5 32 0
60 2MASS J16102955-3922144 Y*O 16 10 29.5517478000 -39 22 14.451017844   17.51 16.31 15.79 13.90 M4.5 45 0
61 THA 15-42 Y*O 16 10 51.5849835192 -38 53 13.767885384   15.89 14.48 14.44 12.95 M1e 68 0
62 2MASS J16115979-3823383 TT* 16 11 59.7947194344 -38 23 38.374012212   18.17 16.55 16.24 14.26 M5.0e 44 0
63 UCAC3 104-204438 Y*O 16 12 43.7499349656 -38 15 03.075603264   15.00 13.44 13.39 11.61 M1 38 0
64 2MASS J16134410-3736462 Y*O 16 13 44.1007544088 -37 36 46.261518840   17.97   16.37 14.66 M5 24 0

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2023.02.04-10:13:24

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