2014A&A...572A..62A


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST07:02:34

2014A&A...572A..62A - Astronomy and Astrophysics, volume 572A, 62-62 (2014/12-1)

POISSON project. III. Investigating the evolution of the mass accretion rate.

ANTONIUCCI S., GARCIA LOPEZ R., NISINI B., CARATTI O GARATTI A., GIANNINI T. and LORENZETTI D.

Abstract (from CDS):

As part of the Protostellar Optical-Infrared Spectral Survey On NTT (POISSON) project, we present the results of the analysis of low-resolution near-IR spectroscopic data (0.9-2.4µm) of two samples of young stellar objects in the Lupus (52 objects) and Serpens (17 objects) star-forming clouds, with masses in the range of 0.1 to 2.0M and ages spanning from 105 to a few 107yr. After determining the accretion parameters of the targets by analysing their HI near-IR emission features, we added the results from the Lupus and Serpens clouds to those from previous regions (investigated in POISSON with the same methodology) to obtain a final catalogue (143 objects) of mass accretion rate values ({dot}(M)acc) derived in a homogeneous and consistent fashion. Our final goal is to analyse how {dot}(M)acc correlates with the stellar mass (M*) and how it evolves in time in the whole POISSON sample. We derived the accretion luminosity (Lacc) and {dot}(M)acc for Lupus and Serpens objects from the Brγ (Paβ in a few cases) line by using relevant empirical relationships available in the literature that connect the HI line luminosity and Lacc. To minimise the biases that arise from adopting literature data that are based on different evolutionary models and also for self-consistency, we re-derived mass and age for each source of the POISSON samples using the same set of evolutionary tracks. We observe a correlation {dot}(M)acc∼M*2.2 between mass accretion rate and stellar mass, similarly to what has previously been observed in several star-forming regions. We find that the time variation of {dot}(M)acc is roughly consistent with the expected evolution of the accretion rate in viscous disks, with an asymptotic decay that behaves as t–1.6. However, {dot}(M)acc values are characterised by a large scatter at similar ages and are on average higher than the predictions of viscous models. Although part of the scattering may be related to systematics due to the employed empirical relationship and to uncertainties on the single measurements, the general distribution and decay trend of the {dot}(M)acc points are real. These findings might be indicative of a large variation in the initial mass of the disks, of fairly different viscous laws among disks, of varying accretion regimes, and of other mechanisms that add to the dissipation of the disks, such as photo-evaporation.

Abstract Copyright:

Journal keyword(s): stars: formation - stars: pre-main sequence - stars: evolution - infrared: stars - accretion, accretion disks

Simbad objects: 156

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Number of rows : 156

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 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3479 0
2 2E 0458.5-6907 X 04 58 18.01 -69 04 19.7           ~ 4 0
3 V* V823 Ori Or* 05 36 06.6536823689 -06 32 17.149058870     16.921   14.217 K5 18 0
4 IRAS 05339-0646 Y*O 05 36 25.1312112025 -06 44 41.842095753     18.160   14.634 K4.5 53 0
5 BD-06 1253 Ae* 05 36 25.4313245626 -06 42 57.684449700   11.65 10.9 10.29   A1e 407 1
6 V* V846 Ori Or* 05 36 41.3689627265 -06 34 00.750112925     14.315   12.462 M0 35 0
7 IRAS 05350-0700 Y*O 05 37 24.4768626806 -06 58 32.904404770           K5 19 0
8 2MASS J05380752-0708291 Y*O 05 38 07.525 -07 08 29.20           K7 37 0
9 Parenago 2649 Ae* 05 38 09.3040922103 -06 49 16.597267355   15.37 13.75 12.85   A5e 51 0
10 IC 430 ISM 05 38 18.24 -07 02 26.2     14.4     ~ 58 1
11 NAME sigma Orionis Cluster MGr 05 38 42 -02 36.0           ~ 486 0
12 Haro 4-254 Y*O 05 38 52.3773209863 -07 21 09.294328642   16.5 15.712   12.743 G4.3 29 0
13 LDN 1641 MoC 05 39.0 -07 00           ~ 426 0
14 [MB91] 31 Y*O 05 39 05.3710430611 -07 11 05.150904914     19.862   15.708 M0.2 19 0
15 Haro 4-255 Y*O 05 39 22.3406615735 -07 26 44.483472198   15 15.830   12.969 K0 93 0
16 IRAS 05378-0750 * 05 40 16.7 -07 48 33           K7 21 0
17 2MASS J05401780-0748258 Y*O 05 40 17.805 -07 48 25.84           ~ 6 0
18 IRAS 05379-0815 * 05 40 19.8 -08 14 08           K7 12 0
19 V* V1791 Ori Or* 05 40 37.3591178327 -08 04 03.017021735     11.55   11.822 F 27 0
20 IRAS 05389-0759 Y*O 05 41 22.131 -07 58 03.04           K5 13 0
21 V* DL Ori Or* 05 41 25.3543568979 -08 05 54.724911984   13.97 12.95 12.57   K1 50 0
22 2MASS J05413005-0840092 Y*O 05 41 30.052 -08 40 09.21           M0 8 0
23 IRAS 05391-0841 IR 05 41 30.297 -08 40 16.57           ~ 9 0
24 [CG2010] IRAS 05391-0841(S) Y*O 05 41 30.34 -08 40 27.7           ~ 2 0
25 IRAS 05391-0805 * 05 41 30.5 -08 03 38           K5 11 0
26 IRAS 05391-0836 * 05 41 34.9 -08 35 25           M0 10 0
27 2MASS J05424706-0817069 Y*O 05 42 47.067 -08 17 06.93           M5 48 0
28 V* V2775 Ori Or* 05 42 48.48792 -08 16 34.7448           ~ 45 0
29 IRAS 05404-0841 * 05 42 51.5 -08 40 01           K6 7 0
30 V* CS Cha Or* 11 02 24.8849252208 -77 33 35.683462615   12.88 11.69   10.123 K2Ve 191 0
31 V* CT Cha Or* 11 04 09.0989057683 -76 27 19.326914289   13.44 13.00   10.89 K7Ve 109 0
32 BYB 18 Y*O 11 04 42.5993743243 -77 41 57.172118661         13.63 M4.5e 50 0
33 Hn 5 Or* 11 06 41.7898286101 -76 35 49.064605354         13.61 M4.5e 39 0
34 NAME Cha I MoC 11 06 48 -77 18.0           ~ 968 1
35 IRAS 11057-7706 Y*O 11 07 09.19896 -77 23 04.9920           ~ 59 0
36 V* GZ Cha Or* 11 07 16.22784 -77 23 06.8316           M1 25 0
37 V* DI Cha Or* 11 07 20.7272524388 -77 38 07.303742740   12.02 10.74 10.72   G2Ve 145 0
38 [CCE98] 2-24 Y*O 11 07 21.426 -77 22 11.76           M2 33 0
39 V* HM Cha Or* 11 07 57.2859502381 -77 17 26.245693013       20.9 17.14 M0.75-M1.75 35 0
40 Sz 23 Or* 11 07 58.0950734241 -77 42 41.351737085   15.8 18.04   14.63 M4Ve 58 0
41 CHXR 30A Y*O 11 07 59.9490505190 -77 17 30.542052824   21.8   18.3 15.78 K8 25 0
42 V* VW Cha Or* 11 08 01.3974165580 -77 42 28.579297348 13.91 14.04 12.80   10.69 K7+M0 167 0
43 HJM C 9-3 IR 11 08 38.197 -77 43 51.75           ~ 3 0
44 NAME Cha IR Nebula TT* 11 08 38.702 -77 43 51.54           M5.5 72 0
45 V* VY Cha Or* 11 08 54.6053179733 -77 02 13.010307395   14.8     13.60 K8Ve 63 0
46 V* HU Cha Or* 11 09 18.12888 -76 30 29.2500         14.99 M1/2e 47 0
47 V* HV Cha Or* 11 09 22.6506851116 -76 34 32.169764007         16.79 M0.75-M1.75 49 0
48 V* HW Cha Or* 11 09 41.9197773612 -76 34 58.597303951           M0- 32 0
49 HJM C 1-24 TT* 11 09 46.1867409078 -76 34 46.505353388   11.93 18.41   14.72 M3.25e 52 1
50 BYB 43 Y*O 11 09 47.3857825572 -77 26 29.196716064         16.62 M3.25e 44 0
51 Ass Cha T 1-23 Or* 11 09 53.4191770981 -76 34 25.652662545   13.9 19.50 15.10 13.52 G9IIIe 80 0
52 V* HX Cha Or* 11 09 54.062760 -76 29 25.54332       16.08 14.03 M3.5+M7 62 0
53 HJM C 1-2 Or* 11 09 55.0057844533 -76 32 41.235293097         17.85 M0- 31 0
54 HJM C 1-4 Y*O 11 10 03.6833471517 -76 33 29.222406347     18.78 16.1 14.72 K8e 52 0
55 HJM C 1-8 Y*O 11 10 11.3920788538 -76 35 29.251306607         13.75 K5Ve 50 0
56 Ass Cha T 1-27 Or* 11 10 49.5666192333 -77 17 51.754825123   16.80 16.64   13.84 M4Ve 70 0
57 V* IK Cha Or* 11 10 53.5826928495 -77 25 00.473687651         17.51 M4.5 28 0
58 V* XX Cha Or* 11 11 39.6733333784 -76 20 15.037536625   16.67 15.28   12.56 M3Ve 97 1
59 V* CW Cha Or* 11 12 30.9287857153 -76 44 24.000743749   15.75 14.45 15.19 13.60 ~ 54 1
60 NAME Cha Dark Cloud SFR 11 55 -78.0           ~ 557 1
61 V* DK Cha Or* 12 53 17.2028372976 -77 07 10.727661977           F0 132 0
62 NAME Cha II MoC 12 54 -77.2           ~ 296 0
63 IRAS 12535-7623 Y*O 12 57 11.6976232932 -76 40 11.310030727   17.20 15.00     M0e 38 0
64 2MASS J12580676-7709094 Y*O 12 58 06.6822511637 -77 09 09.647363561         19.61 M6 19 0
65 2MASS J12590656-7707401 Y*O 12 59 06.56 -77 07 40.1           K4.5 47 0
66 Sz 49 Y*O 13 00 53.2477697970 -76 54 15.207461632   15.6       M0.5 39 0
67 2MASS J13005346-7709086 Y*O 13 00 53.46120 -77 09 08.6580   19.42 18.29 16.26 14.50 M1 8 0
68 Sz 50 Y*O 13 00 55.3820751133 -77 10 22.247668674   17.64 16.01     M3 41 0
69 V* CM Cha TT* 13 02 13.5239808158 -76 37 57.814400439   14.70 13.40     K7IVe 32 0
70 IRAS 13005-7633 mul 13 04 23.96 -76 50 02.0           ~ 11 0
71 Hn 23 Y*O 13 04 24.1088971987 -76 50 01.202943510           K7e 18 0
72 Hn 24 Y*O 13 04 55.7198158485 -77 39 49.222831504           M0 24 0
73 Sz 53 Y*O 13 05 12.6766682155 -77 30 52.567578208   17.85 16.59     M1 24 0
74 Sz 56 Y*O 13 06 38.7884887625 -77 30 35.273941169   18.53 17.08     M4 16 0
75 Sz 57 Y*O 13 06 56.5768623832 -77 23 09.644270577   19.56 17.70     M5 17 0
76 Sz 58 Em* 13 06 57.4248382326 -77 23 41.603858041   17.89 16.01     K5 27 0
77 V* BM Cha Or* 13 08 06.2694469794 -77 55 05.329360813   16.77 14.60     K5 49 0
78 2MASS J13090987-7709437 Y*O 13 09 09.87576 -77 09 43.7868       15.37 14.04 M0.5 9 0
79 2MASS J13091071-7709443 Y*O 13 09 10.71600 -77 09 44.3628       13.47 12.42 M1.5 7 0
80 Sz 65 Or* 15 39 27.7717320499 -34 46 17.209059896   13.11 12.13 11.33 10.76 K7 70 0
81 Sz 66 TT* 15 39 28.2834975101 -34 46 18.086529821   14.9   14.51 12.56 M2 40 0
82 Sz 67 TT* 15 40 38.2670115715 -34 21 36.416274186   13.8   12.85 11.49 ~ 11 0
83 NAME Lupus I Cld 15 43 02.1 -34 09 06           ~ 224 0
84 2MASS J15450887-3417333 Y*O 15 45 08.8747567515 -34 17 33.460978147       18.73   M5.5 29 0
85 CD-33 10685 Or* 15 45 12.8670160092 -34 17 30.646921079 12.47 11.56 10.224 9.60 8.685 K3Ve 217 1
86 V* HW Lup Or* 15 45 17.4119603565 -34 18 28.293017151   17.41 16.25     M1 50 0
87 2MASS J15451851-3421246 Y*O 15 45 18.5160162909 -34 21 24.564123500   17.95   17.35   M6.5 14 0
88 V* GW Lup Or* 15 46 44.7292759994 -34 30 35.677245389   13.8       M1.5e 83 0
89 V* HM Lup Or* 15 47 50.6290613485 -35 28 35.404500425   15.96       M3e 61 0
90 THA 15-5 TT* 15 47 56.9433443193 -35 14 34.797849332   14.5 16.2     K7e 61 0
91 CD-35 10525 Or* 15 49 12.1055573607 -35 39 05.053991067 12.19 12.76 11.66 11.15   K7Ve 237 0
92 THA 15-12 Or* 15 56 09.2067120748 -37 56 06.126159332   13.12 11.93 11.45   M0e 246 0
93 V* RU Lup Or* 15 56 42.3109948086 -37 49 15.473469159 9.27 10.07 9.60     K7/M0e 382 0
94 NAME Lup II MoC 15 57 08 -37 47.1           ~ 90 1
95 Sz 84 TT* 15 58 02.5212129160 -37 36 02.733294310   14.3       M5.0e 50 0
96 V* RY Lup Or* 15 59 28.3852522995 -40 21 51.255321659   12.62 9.90     G8/K1IV-V 167 0
97 IRAS 15567-4141 LP? 16 00 07.4124438132 -41 49 48.699754698       16.30   ~ 12 1
98 IRAS 15571-4217 LP? 16 00 34.3949435471 -42 25 38.581854714   16.92 17.39 15.56   ~ 7 0
99 V* MY Lup TT* 16 00 44.5199369001 -41 55 30.931594414   12.64 12.17 11.06   K0 57 0
100 NAME Lup Cloud SFR 16 03 -38.1           ~ 517 0
101 HD 325367 Or* 16 03 05.4914377137 -40 18 25.426543472   11.40 8.50     M0 276 0
102 NAME Lupus IV MoC 16 03 12.4 -42 07 43           ~ 125 0
103 Sz 133 Y*O 16 03 29.3676884922 -41 40 01.858389664   17.77 16.60 15.78 15.04 K2 30 0
104 V* HO Lup Or* 16 07 00.603672 -39 02 19.49316   13.94 13.17 13.03   M1e 62 0
105 2MASS J16070863-3947219 Y*? 16 07 08.6278455005 -39 47 21.859888575   15.38 14.04 13.50   ~ 6 0
106 THA 15-21 TT* 16 07 10.0693512723 -39 11 03.258471635   15.28 13.70 13.70 12.49 K7-M0 50 0
107 Sz 95 TT* 16 07 52.3113021630 -38 58 06.092190897   16.39 14.57 14.25 12.53 ~ 38 0
108 2MASS J16080618-3912225 Y*O 16 08 06.1847356015 -39 12 22.557197482       18.00 13.76 ~ 13 1
109 Sz 96 TT* 16 08 12.6306575418 -39 08 33.469578208   14.80 13.43 13.69 11.84 ~ 63 0
110 THA 15-24 Y*O 16 08 21.8039413126 -39 04 21.489571046   16.18 14.61 14.67 12.92 M3 45 0
111 V* V1279 Sco Or* 16 08 22.4935035747 -39 04 46.427826148   14.99 13.66 11.70 11.21 M0.4 84 1
112 THA 15-25 Y*O 16 08 24.0420404465 -39 05 49.434128359   15.49 16.00 15.39 14.17 M3.5 37 0
113 THA 15-26 Y*O 16 08 25.7651773769 -39 06 01.220655906   16.62 15.43 14.97 13.12 M5 51 0
114 THA 15-29 Y*O 16 08 30.2690257641 -39 06 11.174771741   14.8 11.14 15.18 13.15 M4 51 0
115 IRAS 16051-3820 Y*O 16 08 30.6992185515 -38 28 26.847010777   11.89 11.15 10.67   K2 37 0
116 THA 15-30 TT* 16 08 30.8149015625 -39 05 48.840814971   15.2 15.25 13.96 13.57 M5 47 0
117 V* V856 Sco Ae* 16 08 34.2868591379 -39 06 18.326059778 7.66 7.41 7.05 6.92   A7IIIne_sh 351 0
118 Sz 106 Y*O 16 08 39.7599221819 -39 06 25.320570812   15.1   15.00 14.66 M2.5 38 0
119 Sz 107 Y*O 16 08 41.7994782799 -39 01 37.026638986   17.31 16.06 15.42 13.20 M5.5 28 0
120 V* V1191 Sco Or* 16 08 48.1619848697 -39 04 19.194935312   18.23 16.43 15.71 13.57 M6.5 20 0
121 IRAS 16054-3857 Y*O 16 08 49.3978327073 -39 05 39.440608212   16.76 17.71 15.89 14.24 M4.5 42 0
122 V* V1193 Sco Or* 16 08 51.5694611925 -39 03 17.705756264   15.27 14.58 13.72 12.28 M4.5 54 0
123 2MASS J16085324-3914401 Y*O 16 08 53.2415720407 -39 14 40.165579947   17.53 16.35 15.35 13.52 M3 31 1
124 THA 15-33 TT* 16 08 54.6847312618 -39 37 43.145460615   15.34 13.98 13.29   M1IVe 62 0
125 Sz 112 Y*O 16 08 55.5292331003 -39 02 33.939799154   16.62 15.39 14.78 12.93 M6 53 0
126 THA 15-34 Y*O 16 08 57.8033256003 -39 02 22.851598056   17.46 16.50 16.64 14.65 M6 45 0
127 THA 15-35 Or* 16 09 01.8488471357 -39 05 12.416220509   15.33 14.12 14.35 12.54 M5.5 70 0
128 NAME Lupus III SFR 16 09.6 -39 03           ~ 271 0
129 THA 15-37 Y*O 16 09 44.3608441561 -39 13 30.167268370   15.84 14.59 14.20 12.38 M2 46 0
130 Sz 118 Y*O 16 09 48.6557347813 -39 11 16.846032967   18.32 16.90 16.61 15.00 K6 47 0
131 2MASS J16101857-3836125 Y*O 16 10 18.5683658482 -38 36 12.598285096   18.37 16.63 16.67 14.70 M5 18 0
132 2MASS J16101984-3836065 Y*O 16 10 19.8339336690 -38 36 06.581180628   17.39   16.76 15.57 M6.5 25 0
133 THA 15-42 Y*O 16 10 51.5851116158 -38 53 13.768173219   15.89 14.48 14.44 12.95 M1e 53 0
134 2MASS J16121120-3832197 Y*O 16 12 11.2110279026 -38 32 19.760083148   18.03   17.25 14.76 ~ 15 0
135 2MASS J16122269-3713276 Y*? 16 12 22.7063544461 -37 13 27.643685611   17.63 15.63 15.76   ~ 6 0
136 2MASS J16124373-3815031 Y*O 16 12 43.7500201062 -38 15 03.075872612   15.00 13.44 13.39 11.61 M1 27 0
137 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3027 0
138 2MASS J18294147+0107378 Y*O 18 29 41.4745026391 +01 07 37.869168699           K2.5 15 0
139 2MASS J18294393+0107208 Y*O 18 29 43.9378583921 +01 07 20.714617731           K7.0 13 0
140 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 912 2
141 2MASS J18294960+0117058 Y*O 18 29 49.602 +01 17 05.83           ~ 26 0
142 2MASS J18295360+0117017 Y*O 18 29 53.6097296564 +01 17 01.723303599   19.7   16.6   M2.0 19 0
143 2MASS J18295571+0114315 Y*O 18 29 55.711 +01 14 31.50           ~ 38 0
144 GCNM 78 * 18 29 56.0 +01 15 11           ~ 4 0
145 2MASS J18295655+0112596 Y*O 18 29 56.553 +01 12 59.65           ~ 21 0
146 2MASS J18295696+0112478 Y*O 18 29 56.967 +01 12 47.83           M3.0 24 0
147 IRAS 18274+0112 Y*O 18 29 57.73680 +01 14 05.6940           M4: 135 2
148 2MASS J18295781+0115318 Y*O 18 29 57.816 +01 15 31.86           K2.0 21 0
149 2MASS J18295781+0112280 Y*O 18 29 57.819 +01 12 28.05           ~ 19 0
150 2MASS J18295784+0112379 Y*O 18 29 57.849 +01 12 37.90           ~ 22 0
151 2MASS J18295785+0112514 Y*O 18 29 57.858 +01 12 51.40           ~ 58 3
152 2MASS J18295820+0115216 Y*O 18 29 58.2037104611 +01 15 21.603460135           K7.0 38 0
153 2MASS J18295876+0114257 Y*O 18 29 58.765 +01 14 25.78           ~ 24 1
154 2MASS J18300274+0112280 Y*O 18 30 02.747 +01 12 28.06           ~ 27 2
155 2MASS J18300341+0116191 Y*O 18 30 03.4139495304 +01 16 19.088787966   18.9   15.0   M0.0 41 0
156 2MASS J18300770+0112043 Y*O 18 30 07.708 +01 12 04.32           M2.5 15 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-07:02:34

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