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Related papers: Complex Organic Molecules in Hot Molecular Cores/C…

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Massive star-forming regions exhibit an extremely rich and diverse chemistry, which in principle provides a wealth of molecular probes, as well as laboratories for interstellar prebiotic chemistry. Since the chemical structure of these…

During the process of star formation, the dense gas undergoes significant chemical evolution leading to the emergence of a rich variety of molecules associated with hot cores and hot corinos. However, the physical and chemical conditions…

Astrophysics of Galaxies · Physics 2024-06-19 Laure Bouscasse , Timea Csengeri , Friedrich Wyrowski , K. M. Menten , S. Bontemps

Recent astrochemical models and experiments have explained that complex organic molecules (COMs; molecules composed of six or more atoms) are produced on the dust grain mantles in cold and dense gas in prestellar cores. However, the…

Astrophysics of Galaxies · Physics 2022-11-16 Giseon Baek , Jeong-Eun Lee , Tomoya Hirota , Kee-Tae Kim , Mi Kyoung Kim

Young massive star-forming regions are known to produce hot molecular gas cores (HMCs) with a rich chemistry. While this chemistry is interesting in itself, it also allows to investigate important physical parameters. I will present recent…

Astrophysics · Physics 2009-11-11 Henrik Beuther

Complex organic molecules (COMs) are thought to form on icy dust grains in the earliest phase of star formation. The evolution of these COMs from the youngest Class 0/I protostellar phases toward the more evolved Class II phase is still not…

High-mass star formation involves complex processes, with the hot core phase playing a crucial role in chemical enrichment and the formation of complex organic molecules. However, molecular inventories in hot cores remain limited. Using…

Astrophysics of Galaxies · Physics 2025-05-26 Chunguo Duan , Qian Gou , Tie Liu , Fengwei Xu , Xuefang Xu , Junlin Lan , Ke Wang , Laurent Pagani , Donghui Quan , Junzhi Wang , Xunchuan Liu , Mingwei He

Many complex organic molecules (COMs) in star-forming regions are believed to form on dust grains. We thus expect both the reduced metallicity and dust-to-gas ratio in the outer Galaxy to have an impact on the chemical composition of these…

Astrophysics of Galaxies · Physics 2026-05-15 Youxin Wang , Arnaud Belloche , Robin T. Garrod

Massive young stellar objects (MYSOs) with hot cores are classic sources of complex organic molecules. The origins of these molecules in such sources, as well as the small- and large-scale differentiation between nitrogen- and…

Solar and Stellar Astrophysics · Physics 2015-03-25 Edith C. Fayolle , Karin I. Öberg , Robin T. Garrod , Ewine F. van Dishoeck , Suzanne E. Bisschop

Molecular complexity builds up at each step of the Sun-like star formation process, starting from simple molecules and ending up in large polyatomic species. Complex organic molecules (COMs; such as methyl formate, HCOOCH$_3$, dymethyl…

Complex organic molecules (COMs) are widely detected in protostellar and protoplanetary systems, where they are thought to have been inherited in large part from earlier evolutionary phases. The chemistry of COMs in these earlier phases,…

Astrophysics of Galaxies · Physics 2025-01-31 F. D. Priestley , P. C. Clark , S. E. Ragan , S. Scibelli , M. T. Cusack , S. C. O. Glover , O. Fehér , L. R. Prole , R. S. Klessen

Hot molecular cores (HMCs) are intermediate stages of high-mass star formation and are also known for their rich emission line spectra at (sub-)mm wavebands. The observed spectral feature of HMCs such as total number of emission lines and…

Classical hot cores are rich in molecular emission, and they show a high abundance of complex organic molecules (COMs). The emergence of molecular complexity is poorly constrained in the early evolution of hot cores. Using the Atacama Large…

Astrophysics of Galaxies · Physics 2019-11-27 T. Csengeri , A. Belloche , S. Bontemps , F. Wyrowski , K. M. Menten , L. Bouscasse

Hot cores are small ($\lesssim$0.1 pc), dense ($\geq$10$^6$ cm$^{-3}$), and hot ($>$100 K) regions around massive protostars and are one of the main production sites of complex organic molecules (COMs, $\geq6$ atoms, including carbon). The…

In the study of high-mass star formation, hot cores are empirically defined stages where chemically rich emission is detected toward a massive YSO. It is unknown whether the physical origin of this emission is a disk, inner envelope, or…

Solar and Stellar Astrophysics · Physics 2017-07-26 V. Allen , F. F. S. van der Tak , Á. Sánchez-Monge , R. Cesaroni , M. T. Beltrán

Massive stars play a pivotal role in shaping their galactic surroundings due to their high luminosity and intense ionizing radiation. However, the precise mechanisms governing the formation of massive stars remain elusive. Complex organic…

Interstellar chemistry in low metallicity environments is crucial to understand chemical processes in the past metal-poor universe. Recent studies of interstellar molecules in nearby low-metallicity galaxies have suggested that the…

Astrophysics of Galaxies · Physics 2021-12-08 Takashi Shimonishi , Natsuko Izumi , Kenji Furuya , Chikako Yasui

Interstellar complex organic molecules (COMs) in solar-like young stellar objects (YSOs), particularly within protostellar disks, are of significant interest due to their potential connection to prebiotic chemistry in emerging planetary…

The Large and Small Magellanic Clouds (LMC and SMC), gas-rich dwarf companions of the Milky Way, are the nearest laboratories for detailed studies on the formation and survival of complex organic molecules (COMs) under metal poor…

The detection of complex organic molecules (COMs) toward dense, collapsing prestellar cores has sparked interest in the fields of astrochemistry and astrobiology, yet the mechanisms for COM formation are still debated. It was originally…

Astrophysics of Galaxies · Physics 2023-04-05 Samantha Scibelli , Yancy Shirley

The Large Magellanic Cloud (LMC) is the nearest laboratory for detailed studies on the formation and survival of complex organic molecules (COMs), including biologically important ones, in low-metallicity environments--typical for earlier…

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