NASCENT-stars large program: origin of molecular complexity towards emerging high-mass protostars
During the star formation process, the interstellar medium gets enriched in a complex zoo of molecules. The extremely rich chemistry of the star forming gas holds the key to constrain the link between the chemistry of disks and their forming planetary systems. It is, however, unclear what are the key physical conditions that influence the emerging complex chemistry, and how the fundamental properties of the emerging star, or stellar clusters impact its evolution. In this context, wide-band receivers open a new era by allowing us to perform quasi-instantaneously spectral surveys that are required for a more robust estimation of molecular abundances. The NASCENT-stars project (PI: Csengeri) is a large observing program started in 2023 at the IRAM NOEMA observatory with 228 hours allocated at the telescope making use of the newly commissioned high spectral resolution (250 kHz) and wide-band observing mode. Overall, we observe a 46.5 GHz non-continuous bandwidth to characterize the physico-chemical conditions of the most active star forming regions of the Cygnus-X molecular complex at the scale of 1400 au probing statistically significant samples individual protostellar envelopes. I would like to highlight the first results of NASCENT-stars and our efforts to develop artificial intelligence and machine learning methods facilitating the exploitation of these rich datasets. Results of this project should pave the way to the spectacular science cases enabled by the ALMA WSU.
Authors
- Romane Le Gal (ORCID: https://orcid.org/0000-0003-1837-3772)
- K. M. Menten
- M. Bonfand (ORCID: https://orcid.org/0000-0001-6551-6444)
- N. Cunningham (ORCID: https://orcid.org/0000-0003-3152-8564)
- Roberto Galván-Madrid (ORCID: https://orcid.org/0000-0003-1480-4643)
- Adam Ginsburg (ORCID: https://orcid.org/0000-0001-6431-9633)
- A. López-Sepulcre (ORCID: https://orcid.org/0000-0002-6729-3640)
- S. Guilloteau
- A. Coutens (ORCID: https://orcid.org/0000-0003-1805-3920)
- N. Brouillet (ORCID: https://orcid.org/0000-0002-3274-7024)
- B. Commerçon (ORCID: https://orcid.org/0000-0003-2407-1025)
- F. Herpin (ORCID: https://orcid.org/0000-0003-2977-5072)
- F. Motte (ORCID: https://orcid.org/0000-0003-1649-8002)
- T. Csengeri (ORCID: https://orcid.org/0000-0002-6018-1371)
- H. Beuther (ORCID: https://orcid.org/0000-0002-1700-090X)
- F. Wyrowski (ORCID: https://orcid.org/0000-0003-4516-3981)
- L. Bouscasse
- N. Schneider (ORCID: https://orcid.org/0000-0003-3485-6678)
- R. T. Garrod (ORCID: https://orcid.org/0000-0001-7723-8955)
- A. Gusdorf (ORCID: https://orcid.org/0000-0002-0354-1684)
- C. Vastel
- Maxime Valeiile-Manet
- Bontemps Baudry
Institutions
- École Normale Supérieure de Lyon (FR)
- West Virginia University (US)
- École Normale Supérieure - PSL (FR)
- University of Florida (US)
- National Institute of Astrophysics, Optics and Electronics (MX)
- Universidad Autónoma Monterrey (CR)
- Centre de Recherche Astrophysique de Lyon (FR)
- Institut de Radioastronomie Millimétrique (FR)
- Laboratoire d'Astrophysique de Bordeaux (FR)
- IPAG Business School (FR)
- SKA Telescope, South Africa (ZA)
- Max Planck Institute for Astronomy (DE)
- Institut de Planétologie et d'Astrophysique de Grenoble (FR)
- Laboratoire de Physique de l'Ecole Normale Supérieure (FR)
- Institute for Resource Analysis and Policy (IN)
- L'Alliance Boviteq (CA)
- Max Planck Institute for Radio Astronomy (DE)
- Ausonius Institut de Recherche sur l'Antiquité et le Moyen age (FR)
- Institut de Recherche en Astrophysique et Planétologie (FR)
- Universidad Nacional Autónoma de México (MX)
Publication Details
- Journal
- SPIRE - Sciences Po Institutional REpository
- Published
- 2024-09-04
- DOI
- https://doi.org/10.5281/zenodo.13681475
- Primary Topic
- Astro and Planetary Science
- Type
- article
- Field-Weighted Citation Impact
- 0.00