The physical and chemical structure of high-mass star-forming regions. Unraveling chemical complexity with the NOEMA large program "CORE"

no code implementations • 23 Feb 2021 • C. Gieser, H. Beuther, D. Semenov, A. Ahmadi, S. Suri, T. Möller, M. T. Beltran, P. Klaassen, Q. Zhang, J. S. Urquhart, Th. Henning, S. Feng, R. Galván-Madrid, V. de Souza Magalhães, L. Moscadelli, S. Longmore, S. Leurini, R. Kuiper, T. Peters, K. M. Menten, T. Csengeri, G. Fuller, F. Wyrowski, S. Lumsden, Á. Sánchez-Monge, L. Maud, H. Linz, A. Palau, P. Schilke, J. Pety, R. Pudritz, J. M. Winters, V. Piétu

Within the 18 observed regions, we identify 22 individual cores with associated 1. 37 mm continuum emission and with a radially decreasing temperature profile.

Astrophysics of Galaxies Solar and Stellar Astrophysics

Bottlenecks to interstellar sulfur chemistry: Sulfur-bearing hydrides in UV-illuminated gas and grains

no code implementations • 4 Jan 2021 • J. R. Goicoechea, A. Aguado, S. Cuadrado, O. Roncero, J. Pety, E. Bron, A. Fuente, D. Riquelme, E. Chapillon, C. Herrera, C. A. Duran

We determine their column densities using coupled excitation, radiative transfer as well as chemical formation and destruction models.

Astrophysics of Galaxies

The EMPIRE Survey: Systematic Variations in the Dense Gas Fraction and Star Formation Efficiency from Full-Disk Mapping of M51

no code implementations • 18 Apr 2016 • F. Bigiel, A. K. Leroy, M. J. Jimenez-Donaire, J. Pety, A. Usero, D. Cormier, A. Bolatto, S. Garcia-Burillo, D. Colombo, M. Gonzalez-Garcia, A. Hughes, A. Kepley, C. Kramer, K. Sandstrom, E. Schinnerer, A. Schruba, K. Schuster, N. Tomicic, L. Zschaechner

The sense of the dependence is that high surface density, high molecular gas fraction regions of the galaxy show high dense gas fractions and low dense gas star formation efficiencies.

Astrophysics of Galaxies