| Abstract : | Herbig Ae/Be stars are often considered as the crucial missing link in our understanding of star formation as their mass is intermediate to that of low-mass and high-mass pre-main sequence stars. A strategy to address this problem is to have a multi-wavelength approach, where one could study samples of Herbig Ae/Be stars in diverse environments using missions or survey programs such as Gaia, LAMOST, XShooter, Spitzer and Chandra. With the advent of the Gaia space mission, quite a number of interesting studies were published, where the focus was to evaluate the role of clustering in the immediate environment of Herbig Ae/Be stars. We will also discuss the exciting studies from spectroscopy, particularly with LAMOST, which was instrumental in understanding the accretion mechanisms in Herbig Ae/Be stars. The line profile studies from Xshooter spectra were very much useful to evaluate the dynamics of the circumstellar environment in these young stars. Thanks to missions such as JWST and Spitzer, the formation of molecules in the disk of Herbig Ae/Be stars is being understood in a better manner. We will highlight the astrochemistry studies from our group, particularly those stars with PAH emission and the recent discovery of fullerene molecules in the circumstellar medium of Herbig Ae/Be stars. Finally, we discuss the role of a low-mass companion in Herbig Ae/Be stars, as evident from the X-ray emission seen from Chandra observations. |
