National Research Lobachevsky State University of Nizhny Novgorod
UDC 53
UDC 520
UDC 521
UDC 523
UDC 524
UDC 52-1
UDC 52-6
CSCSTI 41.00
CSCSTI 29.35
CSCSTI 29.31
CSCSTI 29.33
CSCSTI 29.27
CSCSTI 29.05
Russian Classification of Professions by Education 03.06.01
Russian Classification of Professions by Education 03.05.01
Russian Classification of Professions by Education 03.04.03
Russian Library and Bibliographic Classification 2
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 614
Russian Trade and Bibliographic Classification 6135
BISAC SCI004000 Astronomy
BISAC SCI005000 Physics / Astrophysics
Massive stars play an important role in the Universe. Unlike low-mass stars, the formation of these objects located at great distances is still unclear. It is expected to be governed by some combination of self-gravity, turbulence, and magnetic fields. Our aim is to study the chemical and physical conditions of dense clumps in several high-mass star-forming regions. We performed observations towards 5 high-mass star-forming regions (L1287, S187, S231, DR 21(OH), NGC 7538) with the IRAM 30-m telescope. We covered the 2-3 and 4 mm wavelength bands and analysed the lines of HCN, HNC, HCO
ISM: abundances, molecules; stars: formation, massive; astrochemistry
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