Upper panel: intensity profile from the 1.2 mm dust continuum emission map (Frau et al. 2010, 2012b). Black line and dots: observed values with vertical bars depicting the ± 1-σ range. Green (long-dashed) line: isothermal Bonnor-Ebert fit. Red (solid) line: fit Bonnor-Ebert profile adding the temperature profile shown in the upper panel of Fig. 7. The best fitting central density is ρ_c = 2 × 10⁵ cm^-3. The fit core boundary radius, R_out = 20 000 au is marked by a vertical dashed line. Lower panel: A_V profile from the dust extinction map (Román-Zúñiga et al. 2009, 2010). Black, green (long-dashed) and red (solid) lines as in upper panel. The fit core boundary radius, R_out = 20 000 au, and A_V value of the surrounding medium, mag, are labeled and marked by a vertical dashed line and horizontal dotted line, respectively.