All Tables

Table 1: The MIPS flux density details of sources in IRAS 18511.
Table 2: Young stellar objects around IRAS 18511 selected from Palomar (NIR) as well as Spitzer-IRAC (MIR) colour-colour diagrams.
Table 3: Luminosities of the sources G1-G5 in IRAS 18511 regiondetected in all four IRAC bands.
Table 4: Parameters of the Robitaille et al. (2007) models for G4 and G5, plotted in Fig. 9. Column (2) (M_*) lists the mass of central object, Col. (3) lists the effective temperature of the central objects, Col. (4) lists the total luminosity, Col. (5) lists the inclination angle with respect to the observer (90 $^\circ$ is edge-on), Col. (6) ( $\dot{M}$ ) represents the envelope accretion rate, Col. (7) ( $M_{\rm env}$ ) lists the mass of envelope, Col. (8) ( $M_{\rm disk}$ ) lists the mass of disk, Col. (9) (A_V) lists the envelope extinction along the line-of-sight and Col. (10) lists the age.
Table B.1: Extinction laws and various other constants used in the simulations. $F_{\lambda }$ /F_H represents the ratio of flux in each band with respect to the flux in H band assumed for class II sources in the simulations based on the median spectrum of class II sources by Furlan et al. (2006) and $\lambda$ /L represents the ratio of flux in each band to the luminosity of L1551-IRS5 (Cohen & Schwartz 1983) used to estimate the fluxes of class I sources in the simulations.