Guido Garay

TL;DR: The Large APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) as mentioned in this paper is a large-scale, systematic database of massive pre-and proto-stellar clumps in the Galaxy, in order to understand how and under what conditions star formation takes place.

TL;DR: In this paper, the physical characteristics of the environment around recently formed massive stars are reviewed and a large body of data, gathered during the last decade, has allowed signi cant progress in the understanding of the physical processes that take place during the formation and early evolution of massive stars.

TL;DR: In this paper, the authors reported observations of 47 candidate protostars in two optically thick lines [H2CO (212-111) and CS (2-1)] and one optically thin line [N2H+ (1-0)] using the IRAM 30 m, SEST 15 m, and Haystack 37 m radio telescopes.

TL;DR: In this paper, the behavior of different molecular tracers and look for chemical variations as a function of an evolutionary sequence based on Spitzer IRAC and MIPS emission was investigated.

TL;DR: In this paper, the results of a 1.2-mm continuum emission survey toward 131 star-forming complexes suspected of undergoing massive star formation were reported, which indicated that these objects are associated with cold, deeply embedded objects.