SDSS-V Local Volume Mapper (LVM): revealing the structure of the Rosette Nebula
Year: 2025
Type: article
Abstract: ABSTRACT The Rosette Nebula is a well-known H ii region shaped by the interaction of gas with the OB stars of the NGC 2244 stellar association. Located within the remnant of a giant molecular cloud, it exhibits a complex structure of ionized gas, molecular material, dust, and embedded clusters. In 2023 October, the region was observed as part of the Sloan Digital Sky Survey V (SDSS-V) local volume mapper (LVM) integral field spectroscopy survey. Covering a radius of $\sim 1^{\circ }$, the data set comprises 33 326 spectra with spatially resolved information spanning 390–980 nm. We present a structural analysis of the ionized, molecular, and dusty components using multiwavelength observations: optical spectroscopy from SDSS-V LVM, $^{12}$CO emission from PMO/MWISP (submillimetre), and dust emission from Wide-field Infrared Survey Explorer ($12 \, \mu \text{m}$) and Herschel (far-infrared). These data sets were complemented with the positions of ionizing stars to study emission structures traced by H $\alpha$, H $\beta$, [O iii], [N ii], and [S ii] as well as the spatial distribution of line ratios (H $\alpha$/H $\beta$, [O iii]/H $\beta$, [N ii]/H $\alpha$, and [S ii]/H $\alpha$) relative to the surrounding molecular cloud. Our analysis reveals interaction zones between ionized and neutral gas, including filaments, globules, and dense regions with or without ongoing star formation. Radial and quadrant-based flux profiles further highlight morphological and ionization variations, supporting the scenario in which the Rosette Nebula evolved from a non-homogeneous molecular cloud with a thin, sheet-like structure.
Authors: Mónica A Villa-Durango, Jorge Barrera-Ballesteros, Carlos G Román-Zúñiga, Emma R Moran, Jason E Ybarra, J Eduardo Méndez-Delgado, Niv Drory, Kathryn Kreckel, Hector Ibarra-Medel, S F Sánchez, Evelyn J Johnston, A Roman-Lopes, Jesús Hernandez, José G Fernández-Trincado, Amelia M Stutz, William J Henney, A Ghosh, Sumit K Sarbadhicary, A Z Lugo-Aranda, Dmitry Bizyaev, Amy M Jones, Guillermo A Blanc
Institutions: Universidad Nacional Autónoma de México, University of Pittsburgh, Davidson College, McDonald Observatory, The University of Texas at Austin, Heidelberg University, Instituto de Astrofísica de Canarias, Universidad Diego Portales, University of La Serena, Universidad Católica del Norte, University of Concepción, Johns Hopkins University, New Mexico State University, Lomonosov Moscow State University, Space Telescope Science Institute, Carnegie Institution for Science, Carnegie Observatories, University of Chile
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,046
Funders: National Science Foundation, National Aeronautics and Space Administration, Alfred P. Sloan Foundation, Entomological Society of America, Ohio State University, Harvard University, New Mexico State University, European School of Oncology, Universidad Nacional Autónoma de México, Nanjing University, Agencia Nacional de Investigación y Desarrollo, National Key Research and Development Program of China
OpenAlex ID: W4414319333