2022A&A...666A.188E

Query : 2022A&A...666A.188E

2022A&A...666A.188E - Astronomy and Astrophysics, volume 666A188 (2022/10-1)

The He I λ10830 Å line as a probe of winds and accretion in young stars in Lupus and Upper Scorpius.

ERKAL J., MANARA C.F., SCHNEIDER P.C., VINCENZI M., NISINI B., COFFEY D., ALCALA J.M., FEDELE D. and ANTONIUCCI S.

Abstract (from CDS):


Context. The He I λ0830 Å line is a high excitation line which allows us to probe the material in the innermost regions of protostellar disks, and to trace both accreting and outflowing material simultaneously.
Aims. We use X-shooter observations of a sample of 107 young stars in the Lupus (1-3 Myr) and Upper Scorpius (5-10 Myr) star-forming regions to search for correlations between the line properties, as well as the disk inclination and accretion luminosity.
Methods. We identified eight distinct profile types in the sample. We fitted Gaussian curves to the absorption and/or emission features in the line to measure the maximum velocities traced in absorption, the full-width half-maximum (FWHM) of the line features, and the Gaussian area of the features.
Results. We compare the proportion of each profile type in our sample to previous studies in Taurus. We find significant variations between Taurus and Lupus in the proportion of P Cygni and inverse P Cygni profiles, and between Lupus and Upper Scorpius in the number of emission-only and combination profile types. We examine the emission-only profiles in our sample individually and find that most sources (nine out of 12) with emission-only profiles are associated with known jets. When examining the absorption features, we find that the blue-shifted absorption features appear less blue-shifted at disk inclinations close to edge-on, which is in line with past works, but no such trend with inclination is observed in the sources with only red-shifted features. Additionally, we do not see a strong correlation between the FWHM and inclination. Higher accretion rates were observed in sources with strong blue-shifted features which, along with the changes in the proportions of each profile type observed in the two regions, indicates that younger sources may drive stronger jets or winds.
Conclusions. Overall, we observe variations in the proportion of each He I λ10830 Å profile type and in the line properties which indicates an evolution of accretion and ejection signatures over time, and with source properties. These results confirm past works and models of the He I λ10830 Å line, but for a larger sample and for multiple star-forming regions. This work highlights the power of the He I λ0830 Å line as a probe of the gas in the innermost regions of the disk.

Abstract Copyright: © J. Erkal et al. 2022

Journal keyword(s): stars: pre-main sequence - stars: formation - protoplanetary disks - accretion - accretion disks

Simbad objects: 122

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Number of rows : 122
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
2 HD 30171 TT* 04 45 51.2948260920 +15 55 49.632455460   10.12 9.36   8.439 G5 63 0
3 RX J1535.8-2959 TT* 15 35 48.559992 -29 58 55.22628   16.267 14.909 14.246   M4 21 0
4 Sz 65 Or* 15 39 27.7716659160 -34 46 17.211087984   13.11 12.13 11.33 10.76 K7 118 0
5 Sz 66 TT* 15 39 28.2828956688 -34 46 18.082914564   14.9   14.51 12.56 M2 75 0
6 2MASS J15414081-3345188 Or* 15 41 40.8086577936 -33 45 18.847533888         17.38 M6.5 25 0
7 2MASS J15445789-3423392 Or* 15 44 57.8922421008 -34 23 39.355357344   18.38 17.74 17.29 15.28 M5.0e 39 0
8 2MASS J15450887-3417333 Or* 15 45 08.8742780880 -34 17 33.454839372       18.73   M5.5 54 0
9 CD-33 10685 Or* 15 45 12.8678037432 -34 17 30.644403036 12.47 11.56 10.224 9.60 8.685 K3Ve 306 1
10 V* HW Lup Or* 15 45 17.4118414392 -34 18 28.286447220   17.41 16.25     M1 87 0
11 2MASS J15451851-3421246 Or* 15 45 18.5160315960 -34 21 24.553939896   17.95   17.35   M6.5 27 0
12 V* GW Lup Or* 15 46 44.7290527536 -34 30 35.677420056   13.8       M1.5e 201 0
13 V* HM Lup Or* 15 47 50.6288371920 -35 28 35.404076028   15.941 14.748 14.337   M3e 103 0
14 THA 15-5 TT* 15 47 56.9427182064 -35 14 34.796420412   14.5 16.2     K7e 95 0
15 V* HN Lup Or* 15 48 05.2154956876 -35 15 53.295162846   16.083 14.377 13.726   M3.5e 69 0
16 V* GQ Lup Or* 15 49 12.1053805848 -35 39 05.058139788 12.19 12.76 11.66 11.15   K7Ve 334 1
17 Sz 76 TT* 15 49 30.7355449512 -35 49 51.413284020   16.611 15.095 14.710   M3.2 58 0
18 2MASS J15514032-2146103 Or* 15 51 40.3236141816 -21 46 10.410119868           M4Ve 28 0
19 Sz 77 TT* 15 51 46.9580885472 -35 56 44.112678504   12.0       K5.5 86 0
20 2MASS J15530132-2114135 Or* 15 53 01.3221988656 -21 14 13.535823156           M4Ve 31 0
21 UCAC2 23646111 * 15 53 42.1002855120 -20 49 28.339057632         13.55 M3.4V 29 0
22 NAME THA 15-10A Or* 15 55 50.2814014152 -38 01 33.699111168           M4.5 18 0
23 NAME THA 15-10B Y*O 15 55 50.3362340280 -38 01 31.864857996           M5.5 10 0
24 WRAY 15-1384 TT* 15 56 02.0994258408 -36 55 28.274506140 14.91 14.342 13.470 13.311 11.86 M1 56 0
25 THA 15-12 Or* 15 56 09.2066646912 -37 56 06.126118692   13.12 11.93 11.45   M0e 554 0
26 V* RU Lup TT* 15 56 42.3108692112 -37 49 15.473946900 9.27 10.07 9.60     K7/M0e 528 0
27 Sz 84 TT* 15 58 02.5198436808 -37 36 02.729938536   14.3       M5.0e 85 0
28 RX J155829.5-231026 TT* 15 58 29.8128891888 -23 10 07.752769680           M3e 64 0
29 HD 143006 Or* 15 58 36.9126279888 -22 57 15.220559196   10.92 10.14   8.70 G5IVe 338 0
30 WRAY 15-1400 TT* 15 59 16.4717314824 -41 57 10.300018176   13.5 12.0     K7IVe 125 0
31 2MASS J15592523-4235066 Or* 15 59 25.2340111704 -42 35 06.571838868   17.42 16.82     M5 28 0
32 V* RY Lup Or* 15 59 28.3864710696 -40 21 51.249496176   12.62 9.90     G8/K1IV-V 251 0
33 UCAC3 96-205744 Or* 16 00 00.6018563304 -42 21 56.821951152   17.29 15.85 15.25 13.43 M4.5 47 0
34 UCAC3 96-205752 Or* 16 00 02.3583827328 -42 22 14.600258148   16.86 15.46 14.98 13.59 M4 54 0
35 [PBB2002] USco J160018.4-223011 Or* 16 00 18.4309283544 -22 30 11.535396696           M3e 35 0
36 2MASS J16002612-4153553 Or* 16 00 26.1203153232 -41 53 55.371567156   16.57 16.45 15.70 13.80 M5.25 42 0
37 Sz 130 TT* 16 00 31.0374709944 -41 43 36.988516560   15.82 14.71 13.56 12.46 M1.5 73 0
38 V* MY Lup TT* 16 00 44.5202267160 -41 55 30.935126748   12.64 12.17 11.06   K0 144 0
39 Sz 131 Or* 16 00 49.4333360352 -41 30 03.916812096   17.51 16.13 14.60 12.92 M2 55 0
40 [PBB2002] USco J160140.8-225810 ** 16 01 40.868760 -22 58 10.58520   15.67 15.30 15.37   M3e 34 0
41 [PBB2002] USco J160207.5-225746 Or* 16 02 07.5766784976 -22 57 46.882812240           M1e 59 0
42 2MASS J16024152-2138245 Or* 16 02 41.5203177936 -21 38 24.636813108           M4.75 36 0
43 NAME Lupus Complex SFR 16 03 -38.1           ~ 851 0
44 HD 325367 Or* 16 03 05.4915085848 -40 18 25.426727676   11.40 8.50     M0 406 0
45 Sz 133 Or* 16 03 29.3848659360 -41 40 01.765426548   17.77 16.60 15.78 15.04 K2 50 0
46 RX J1603.9-2031 TT* 16 03 57.6711677256 -20 31 05.604697272   13.4   11.73 10.92 K5 75 0
47 [PGZ2001] J160357.9-194210 Or* 16 03 57.9355222272 -19 42 10.905101028           M2e 57 0
48 UCAC4 352-076526 Or* 16 04 17.4053275800 -19 42 28.816820568   15.809 14.697 15.535   M3.5 35 0
49 [M81] I-490 Or* 16 04 18.9135130896 -24 30 39.860961120   15.56 13.87 13.50 11.23 M2.5e 28 0
50 ATO J241.0901-21.5080 Or* 16 04 21.6547947840 -21 30 28.550063304   13.3       K2 190 0
51 [PGZ2001] J160545.4-202308 Or* 16 05 45.3995129856 -20 23 08.809297440           M2e 54 0
52 ScoPMS 31 TT* 16 06 21.9398106936 -19 28 44.802473268     13.47     M0.5V 56 0
53 2MASS J16063539-2516510 * 16 06 35.3929524000 -25 16 51.199726044           M4.5 26 0
54 [PGZ2001] J160643.8-190805 Or* 16 06 43.8620267616 -19 08 05.549732448           K6e 55 0
55 V* HO Lup A Or* 16 07 00.5998021080 -39 02 19.515199452           M0 22 0
56 V* HO Lup B Y*O 16 07 00.6752385384 -39 02 18.260138076           M4.5 18 0
57 2MASS J16070384-3911113 Or* 16 07 03.84336 -39 11 11.3208       18.79 16.80 M4.5 47 0
58 2MASS J16070854-3914075 LM* 16 07 08.5530917712 -39 14 07.494035352   17.85   18.67 17.86 M1.75 44 0
59 THA 15-21 TT* 16 07 10.0694468880 -39 11 03.260683896   15.28 13.70 13.70 12.49 K7-M0 84 0
60 THA 15-20 TT* 16 07 11.5873449384 -39 03 47.492129340   16.25 14.58 14.11 12.92 M0.5 122 0
61 2MASS J16072625-2432079 Or* 16 07 26.2542206184 -24 32 07.913328360           M3.5 37 0
62 2MASS J16073773-3921388 Or* 16 07 37.7327699304 -39 21 38.745260928   18.38 17.4 17.12 15.68 M5.5e 48 0
63 Sz 95 TT* 16 07 52.3109740056 -38 58 06.091698756   16.714 15.189 14.934 12.53 ~ 66 0
64 2MASS J16080017-3902595 Or* 16 08 00.1718615064 -39 02 59.504573976   16.94 17.01 16.72 14.31 M5.5e 53 0
65 Sz 96 TT* 16 08 12.6308620920 -39 08 33.470354256   14.80 13.43 13.69 11.84 ~ 87 0
66 2MASS J16081497-3857145 Or* 16 08 14.9753942112 -38 57 14.409165492       18.93 17.42 4.75 48 0
67 2MASS J16081566-2222199 LM* 16 08 15.6662977704 -22 22 20.054864892           M3.25 38 0
68 THA 15-24 Or* 16 08 21.8037909864 -39 04 21.491863824   16.18 14.61 14.67 12.92 M3 70 0
69 V* V1279 Sco Or* 16 08 22.4935277520 -39 04 46.427612052   14.99 13.66 11.70 11.21 M0.4 154 1
70 [T64] 3 Or* 16 08 23.2468097568 -19 30 00.977031108         11.79 K9e 75 0
71 THA 15-25 Or* 16 08 24.0422612880 -39 05 49.433170740   15.49 16.00 15.39 14.17 M3.5 59 0
72 THA 15-26 Or* 16 08 25.7633674272 -39 06 01.247043888   16.62 15.43 14.97 13.12 M5 79 0
73 [PGZ2001] J160827.5-194904 Or* 16 08 27.5104444296 -19 49 05.061066924           M5e 40 0
74 SSTc2d J160828.1-391310 Or* 16 08 28.1226362485 -39 13 09.781567277   17.45   17.76 16.13 M6.5 33 0
75 WRAY 16-203 Or* 16 08 29.7275063376 -39 03 11.024360496   16.26 15.91 15.38 15.69 K0: 180 1
76 THA 15-29 Or* 16 08 30.2687378568 -39 06 11.176056000   14.8 11.14 15.18 13.15 M4 76 0
77 IRAS 16051-3820 Or* 16 08 30.6994064064 -38 28 26.846324004   11.89 11.15 10.67   K2 89 0
78 THA 15-30 TT* 16 08 30.8142130416 -39 05 48.837746436   15.2 15.25 13.96 13.57 M5 73 0
79 V* V1094 Sco TT* 16 08 36.1772010696 -39 23 02.464980972 16.01 15.00 13.48 12.47 11.45 ~ 101 1
80 2MASS J16083733-3923109 Or* 16 08 37.3331402112 -39 23 10.926378348   20.1 19.1 20.70 18.44 M7.5e 28 0
81 Sz 106 Or* 16 08 39.7597402848 -39 06 25.321212288   15.1   15.00 14.66 M2.5 55 0
82 Sz 107 Or* 16 08 41.7980924472 -39 01 37.038551232   17.31 16.06 15.42 13.20 M5.5 48 0
83 NAME Sz 108B Or* 16 08 42.8838783888 -39 06 14.692839804       17.71 14.39 M6Ve 44 0
84 IRAS 16054-3857 Or* 16 08 49.3987083072 -39 05 39.447341844   16.76 17.71 15.89 14.24 M4.5 61 0
85 V* V1192 Sco Or* 16 08 51.4348063536 -39 05 30.460358652     21.9 18.97 18.18 M5 78 0
86 V* V1193 Sco Or* 16 08 51.5693655096 -39 03 17.707587264   15.27 14.58 13.72 12.28 M4.5 82 0
87 UCAC3 102-194910 Or* 16 08 53.2420957464 -39 14 40.160339952   17.53 16.35 15.35 13.52 M3 62 1
88 2MASS J16085373-3914367 Or* 16 08 53.7357629040 -39 14 36.799256184       21.73 18.76 M5.5 41 0
89 THA 15-33 TT* 16 08 54.6849382512 -39 37 43.145069664   15.34 13.98 13.29   M1IVe 109 0
90 2MASS J16085529-3848481 Or* 16 08 55.2899613672 -38 48 48.174613416   17.36   17.24 15.24 M6.5 43 1
91 Sz 112 Or* 16 08 55.5289090032 -39 02 33.941081832   16.62 15.39 14.78 12.93 M6 76 0
92 THA 15-34 Or* 16 08 57.8026653048 -39 02 22.853868252   17.46 16.50 16.64 14.65 M6 67 0
93 2MASS J16085953-3856275 Or* 16 08 59.5395612120 -38 56 27.592929708       19.25 16.91 M8.5e 38 0
94 [PBB2002] USco J160900.0-190836 Or* 16 09 00.0227996640 -19 08 36.865209012           M5e 51 0
95 [PGZ2001] J160900.7-190852 TT* 16 09 00.7592409720 -19 08 52.680361920           M1.0V 94 0
96 2MASS J16090141-3925119 Or* 16 09 01.4148377304 -39 25 11.923332420   16.92 15.31 15.04 13.48 M4 58 0
97 THA 15-35 Or* 16 09 01.8486544824 -39 05 12.414717240   15.33 14.12 14.35 12.54 M5.5 142 0
98 Sz 115 TT* 16 09 06.2137580736 -39 08 51.873869400   16.88 15.48 15.09 13.12 ~ 58 0
99 2MASS J16092697-3836269 Or* 16 09 26.9795990952 -38 36 26.933727420   17.55   16.31 14.74 M4.5 43 0
100 THA 15-37 Or* 16 09 44.3607357216 -39 13 30.167581764   15.84 14.59 14.20 12.38 M2 70 0
101 Sz 118 Or* 16 09 48.6562295568 -39 11 16.847425032   18.32 16.90 16.61 15.00 K6 76 0
102 [PBB2002] USco J160953.6-175446 Or* 16 09 53.6173365312 -17 54 47.434100292           M3e 43 0
103 2MASS J16095628-3859518 Or* 16 09 56.2954845696 -38 59 51.581549796   17.37 18.0 16.49 15.28 M6.0e 53 0
104 SONYC Lup3-29 Or* 16 10 01.3326378528 -39 06 44.815987296   18.38 17.42 17.90 15.27 M7.5 30 0
105 2MASS J16101857-3836125 Or* 16 10 18.5677223424 -38 36 12.598346628   18.37 16.63 16.67 14.70 M5 37 0
106 2MASS J16101984-3836065 Or* 16 10 19.8333629688 -38 36 06.586243272   17.39   16.76 15.57 M6.5 41 0
107 2MASS J16102955-3922144 Or* 16 10 29.5517478000 -39 22 14.451017844   17.51 16.31 15.79 13.90 M4.5 60 0
108 2MASS J16104636-1840598 LM* 16 10 46.3656092640 -18 40 59.927804976   19.5       M4.5 46 0
109 NAME THA 15-42B Or* 16 10 51.4487859072 -38 53 12.993835812           M2 10 0
110 THA 15-42 Or* 16 10 51.5849835192 -38 53 13.767885384   15.89 14.48 14.44 12.95 M1e 84 0
111 UCAC2 23893922 Or* 16 11 13.3078806264 -20 19 02.974403388           M3 30 1
112 2MASS J16115979-3823383 TT* 16 11 59.7947194344 -38 23 38.374012212   18.17 16.55 16.24 14.26 M5.0e 52 0
113 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
114 [T64] 6 Or* 16 12 39.1668122808 -18 59 28.459379616   15.5   13.99 11.84 K2.5IV 53 1
115 UCAC3 104-204438 Or* 16 12 43.7499349656 -38 15 03.075603264   15.00 13.44 13.39 11.61 M1 62 0
116 UCAC4 325-083773 Or* 16 13 36.5071753392 -25 03 47.736449460   15.997 15.128 15.461   M3.5 29 0
117 2MASS J16134410-3736462 Or* 16 13 44.1007544088 -37 36 46.261518840   17.97   16.37 14.66 M5 36 0
118 2MASS J16135434-2320342 LM* 16 13 54.3201573624 -23 20 34.610381412           M4.5 27 0
119 CD-22 11432 TT* 16 14 11.0697507472 -23 05 36.071480044   11.90 10.70   9.255 K2IV 86 0
120 [PGZ2001] J161433.6-190013 Or* 16 14 33.6717724656 -19 00 13.479169896           M3e 40 0
121 GSC 06209-00747 Or* 16 15 44.1705964824 -19 21 17.234880660   15.56 14.14     K5:Ve 43 0
122 2MASS J16181904-2028479 Or* 16 18 19.0518159768 -20 28 47.899349724           M4.75 32 0

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