EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 527 (March 2011) A&A, 527 (2011) A145 Full HTML
Highlight
Free Access

Table 8

Characteristics of YSOs extracted with Gaussclumps in the 870 μm continuum map of Cha I filtered up to scale 5.

Name Ngcla FWHMb FWHMb SNRc Npeakd AVe Mpeakf Mtotf M50″f CMg Classh Ref.h
(″ × ″) (1000 AU)2 (1021 cm-2) (mag) (M⊙) (M⊙) (M⊙) (%)
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13)
Cha1-S1 1 23.5  ×  22.9 1.6  ×  1.3 215 33 7 0.20 0.24 0.23 86( 1) II 1
Cha1-S2 2 26.6  ×  26.6 2.5  ×  2.5 101 15 9 0.092 0.14 0.13 69( 1) I 1
Cha1-S3 3 25.1  ×  23.0 2.1  ×  1.4 97 15 11 0.089 0.11 0.11 79( 1) II 1
Cha1-S4 5 57.8  ×  31.0 8.3  ×  3.5 51 7.7 14 0.046 0.18 0.097 48( 1) I 1
Cha1-S5 7 22.7  ×  21.3 1.5  ×  1.0 24 3.7 2.7 0.022 0.024 0.024 95( 7) II 2
Cha1-S6 10 21.4  ×  21.2 1.2  ×  1.1 16 2.5 11 0.015 0.015 0.013 112(15) II 1
Cha1-S7 12 21.9  ×  21.2 1.5  ×  1.2 14 2.1 6 0.013 0.013 0.013 99(14) Flat 1
Cha1-S8 17 22.0  ×  21.2 1.7  ×  1.4 11 1.7 3.1 0.010 0.011 0.0098 107(19) II 3
Cha1-S9 18 21.8  ×  21.2 1.6  ×  1.4 11 1.6 7 0.0098 0.010 0.0095 103(19) II 1
Cha1-S10 20 21.6  ×  21.2 1.6  ×  1.5 9.9 1.5 14 0.0091 0.0093 0.012 73(12) Flat 1
Cha1-S11 22 21.4  ×  21.2 1.6  ×  1.5 9.5 1.4 3.2 0.0087 0.0088 0.0078 112(25) I 1
Cha1-S12 28 21.4  ×  21.2 1.8  ×  1.7 7.7 1.2 8 0.0071 0.0072 0.0071 99(25) II 1
Cha1-S13 31 35.8  ×  28.5 5.2  ×  3.6 7.7 1.2 7 0.0071 0.016 0.014 52( 9) II 1
Cha1-S14 62 21.5  ×  21.2 2.0  ×  1.9 5.9 0.89 11 0.0054 0.0054 0.020 27( 5) II 1
Cha1-S15 63 54.5  ×  24.3 9.1  ×  2.9 5.6 0.85 8 0.0052 0.015 0.0097 53(13) II 4
Cha1-S16 77 24.8  ×  21.2 3.1  ×  2.1 5.1 0.78 6 0.0047 0.0055 0.0053 89(31) II 1

Notes. 

(a)

Numbering of Gaussclumps sources like in Table 2.

(b)

Size of the fitted Gaussian and deconvolved source size. The deconvolved size is computed from the fitted size multiplied by (1 + 1 / SNR), with SNR the peak signal-to-noise ratio, and therefore is an upper limit in most cases.

(c)

Peak signal-to-noise ratio of the fitted Gaussian.

(d)

Peak H2 column density computed assuming a dust temperature of 20 K and a dust opacity of 0.03 cm2 g-1. The statistical rms uncertainty is 1.5 × 1020 cm-2.

(e)

Visual extinction derived from 2MASS.

(f)

Mass in the central beam (HPBW = 21.2″), total mass derived from the Gaussian fit, and mass computed from the flux measured in an aperture of 50″ in diameter. The statistical rms uncertainties of Mpeak and M50″ are 0.0009 and 0.0015 M⊙, respectively.

(g)

Mass concentration mpeak / m50″. The statistical rms uncertainty is given in parentheses.

(h)

Infrared class of the nearest YSO listed in Col. 11 of Table 2 and reference: (1) Luhman et al. (2008); (2) Furlan et al. (2009); (3) Henning et al. (1993); (4) Luhman & Muench (2008).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.