This review examines the state-of-the-art knowledge of high-mass star and massive cluster
formation, gained from ambitious observational surveys, which acknowledges the multiscale …

Of the over 150 different molecular species detected in the interstellar and circumstellar
media, approximately 50 contain 6 or more atoms. These molecules, labeled complex by …

Context. Water is a key molecule in the physics and chemistry of star and planet formation,
but it is difficult to observe from Earth. The Herschel Space Observatory provided …

The high abundances of Complex Organic Molecules (COMs) with respect to methanol, the
most abundant COM, detected toward low-mass protostars, tend to be underpredicted by …

Sufficiently massive clumps of molecular gas collapse under self-gravity and fragment to
spawn a cluster of stars that have a range of masses. We investigate observationally the …

ABSTRACT Water In Star-forming regions with Herschel (WISH) is a key program on the
Herschel Space Observatory designed to probe the physical and chemical structures of …

Understanding the chemical evolution of young (high-mass) star-forming regions is a central
topic in star formation research. Chemistry is employed as a unique tool 1) to investigate the …

Context. Circumstellar discs around massive stars could mediate the accretion onto the star
from the infalling envelope, and could minimize the effects of radiation pressure. Despite …

Aims. Surveys of the Milky Way at various wavelengths have changed our view of star
formation in our Galaxy considerably in recent years. In this paper we give an overview of …

Filamentary structures are ubiquitous in high-mass star-forming molecular clouds. Their
relation with high-mass star formation is still to be understood. Here we report interferometric …