Free Access

Table 4

Results of the LaccLline linear fits.

Diagnostic λ a (±err) b (±err) N points σ * No. upper Comments
[nm] limits

H3 (Hα) 656.2800 1.12 (0.07) 1.50 (0.26) 36 + 6 0.36 0
H4 (Hβ) 486.1325 1.11 (0.05) 2.31 (0.23) 36 + 6 0.27 0
H5 (Hγ) 434.0464 1.09 (0.05) 2.50 (0.25) 36 + 6 0.27 0
H6 (Hδ) 410.1734 1.06 (0.06) 2.50 (0.28) 36 0.30 0
H7 (Hϵ) 397.0072 1.07 (0.06) 2.64 (0.29) 36 0.30 0 1
H8 388.9049 1.04 (0.06) 2.55 (0.29) 36 0.30 0
H9 383.5384 1.01 (0.05) 2.53 (0.27) 36 0.29 0
H10 379.7898 1.00 (0.05) 2.58 (0.27) 35 0.29 1
H11 377.0630 1.02 (0.05) 2.74 (0.25) 35 + 6 0.27 1
H12 375.0151 0.99 (0.05) 2.73 (0.25) 35 0.26 1
H13 373.4368 1.00 (0.05) 2.85 (0.25) 34 0.25 2
H14 372.1938 1.02 (0.06) 3.09 (0.31) 31 0.25 5
H15 371.1977 1.02 (0.06) 3.13 (0.31) 31 0.25 5

Pa5 (Paβ) 1281.8070 1.04 (0.08) 2.45 (0.39) 29 + 6 0.38 7
Pa6 (Paγ) 1093.8086 1.18 (0.06) 3.17 (0.31) 33 + 6 0.29 3
Pa7 (Paδ) 1004.9368 1.18 (0.10) 3.33 (0.47) 25 0.36 9
Pa8 954.5969 1.11 (0.12) 3.19 (0.58) 17 0.39 16
Pa9 922.9014 1.13 (0.09) 3.40 (0.47) 27 0.35 7
Pa10 901.4909 1.03 (0.09) 2.99 (0.49) 26 0.39 8

Br7 (Brγ) 2166.1210 1.16 (0.07) 3.60 (0.38) 19 0.28 14

He i 402.6191 1.04 (0.06) 3.62 (0.37) 31 0.27 5
He i 447.1480 1.05 (0.06) 3.45 (0.35) 33 0.30 3
He i 471.3146 1.04 (0.11) 4.25 (0.69) 16 0.29 12
He iFe i 492.1931 0.90 (0.06) 2.65 (0.36) 32 0.31 4 2
He i 501.5678 0.98 (0.06) 3.36 (0.38) 30 0.27 4
He i 587.5621 1.13 (0.06) 3.51 (0.30) 36 + 6 0.28 0
He i 667.8151 1.16 (0.08) 4.12 (0.45) 36 0.36 0
He i 706.5190 1.14 (0.07) 4.16 (0.39) 36 0.32 0
He i 1082.9091 1.11 (0.12) 2.62 (0.57) 30 0.44 4 3
He ii 468.5804 1.10 (0.09) 4.21 (0.57) 28 0.36 2

Ca ii (K) 393.3660 0.96 (0.05) 2.06 (0.27) 36 0.31 0
Ca ii (H) 396.8470 1.02 (0.05) 2.37 (0.23) 36 0.25 0 4
Ca ii 849.8020 0.95 (0.07) 2.18 (0.38) 34 0.41 2
Ca ii 854.2090 0.95 (0.08) 2.13 (0.42) 32 0.44 2
Ca ii 866.2140 0.95 (0.09) 2.20 (0.43) 29 0.43 4

Na i 588.995 0.93 (0.06) 2.56 (0.32) 36 0.33 0
Na i 589.592 0.90 (0.06) 2.56 (0.37) 36 0.38 0

O i 777.3055 1.16 (0.09) 3.91 (0.51) 14 0.36 6 5
O i 844.6360 1.06 (0.18) 3.06 (0.90) 18 0.61 3

Notes. The relations are of the form log (Lacc/L) = a·log (Lline/L)   +   b. Comments in last column: (1) partially blended with Ca ii H; (2) He i + Fe i blend; (3) this line is also produced in winds/outflows (Edwards et al. 2006); the relationship must be used with caution; (4) partially blended with Hϵ; (5) O i λλ 777.194, 777.417 nm doublet. •: Suggested relations for deriving Lacc from the line luminosity.

(†)

Number of points for the fit. The fits in which the six YSOs in σ-Ori (Rigliaco et al. 2012) were included are indicated with “+6”. Although measurements of the Ca ii IRT are also available in Rigliaco et al. (2012), we did not include them because those measurements were not corrected for the photospheric contribution. The number of points for Lupus is the number of YSOs in which the corresponding line was detected.

(*)

Standard deviation from linear fit.

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.