EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 577 (May 2015) A&A, 577 (2015) A102 Full HTML
Highlight
Free Access

Table 1

Observed integrated intensities ( in K km s-1) and half-power beam widths (θ in arcsec)a.

Source HCO+ 6–5 H13CO+ 1–0 H13CO+ 3–2 H13CO+ 4–3 N2H+ 1–0b N2H+ 6–5b References
W θ W θ W θ W θ W θ W θ
L1448 MM 1.37 43 2.0 43 1.9 19 0.92 21 12.48 27 0.19 41 1, 2, 3, 4
NGC 1333 IRAS2A 1.36 43 1.8 43 2.1 19 2.7 14 14.2 40 0.41 41 1, 2, 5
NGC 1333 IRAS4A 2.29 43 2.3 43 1.4 19 0.86 21 15.9 40 0.78 41 1, 2, 5, 6
NGC 1333 IRAS4B 1.88 43 2.1 43 0.57 19 ··· 13.5 40 0.64 41 1, 2, 5
L1527 1.06 43 2.2 43 1.1 19 0.47 14 3.91 27 <0.030 41 1, 2, 4
Ced110 IRS4 ··· ··· ··· 0.38 18 4.8 54 ··· 7, 8
BHR71 0.95 43 ··· ··· ··· 8.1 54 ··· 1, 8
IRAS 15398 0.75 43 ··· 0.52 28 ··· 9.4 54 ··· 8, 9
L483 MM 1.25 43 1.5 43 1.7 19 1.2 14 14.05 27 0.29 41 1, 2, 4
Ser SMM1 4.30 43 1.56 c 5.8 19 3.1 21 28 27 1.48 41 1, 5, 8, 10
Ser SMM4 2.08 43 1.13 c 2.9 19 1.2 21 49 27 ··· 1, 8, 10
Ser SMM3 1.74 43 <0.1 c 1.6 19 0.2 21 23 27 ··· 1, 8, 10
L723 MM 0.77 43 0.61 43 0.94 19 0.70 14 5.70 27 ··· 1, 2, 4
B335 0.63 43 0.24 24 0.46 28 ··· 6.05 27 ··· 1, 4, 11
L1157 0.54 43 0.89 29 0.61 19 0.52 14 8.38 27 0.07 41 1, 2, 4
L1489 0.40 43 0.96 43 0.82 19 0.61 14 0.26 40 ··· 2, 5
L1551 IRS5 ··· 1.55 19 2.4 19 2.2 14 15.7 40 ··· 2, 12
TMR1 ··· 1.1 43 0.51 19 0.20 14 0.37 40 ··· 2
TMC1A ··· 0.44 19 <0.27 19 <0.13 14 7.1 40 ··· 2, 12
TMC1 ··· 1.26 19 <0.27 19 <0.12 14 5.8 40 ··· 2, 12
HH46 IRS ··· ··· ··· 1.1 18 ··· ··· 7
Elias 29 0.28 43 0.36 72 0.09 28 ··· ··· ··· 13
RNO91 ··· 0.93 72 ··· ··· 11 27 ··· 8, 14

Notes.

(a)

Throughout the paper, Class 0 sources appear above the horizontal line and Class I sources below it. Tmb is the main-beam temperature, corrected for beam efficiencies as detailed in the references. Typical uncertainties on the integrated intensities are 10–25%. Upper limits are at the 3σ level. See Yıldız et al. (2013) for a compilation of C18O intensities and beam sizes.

(b)

The N2H+ intensities are summed over all hyperfine components (see text).

(c)

Integrated intensity over a 20′′ × 20′′ region (Hogerheijde et al. 1999).

Reference. (1) this work; (2) Jørgensen et al. (2004); (3) Gregersen et al. (1997); (4) Emprechtinger et al. (2009); (5) San José-García et al. (2015) and Benz et al. (2015); (6) Blake et al. (1995); (7) van Kempen et al. (2009); (8) Mardones et al. (1997); (9) Gregersen et al. (2000); (10) Hogerheijde et al. (1999); (11) Evans et al. (2005); (12) Onishi et al. (2002); (13) Boogert et al. (2002); (14) Butner et al. (1995).

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.