SDSS-V Local Volume Mapper (LVM): revealing the structure of the Rosette Nebula

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.

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Publication Details

Journal
Monthly Notices of the Royal Astronomical Society
Published
2025-09-12
DOI
https://doi.org/10.1093/mnras/staf1530
Citations
2
Primary Topic
Astrophysics and Star Formation Studies
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article
Field-Weighted Citation Impact
2.31
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article

SDSS-V Local Volume Mapper (LVM): revealing the structure of the Rosette Nebula

Edward C. Moran, Evelyn J. Johnston, A. Z. Lugo-Aranda, Guillermo A. Blanc et al.
2 citations
Monthly Notices of the Royal Astronomical Society
Astrophysics and Star Formation Studies
2.31
article

SDSS-V Local Volume Mapper (LVM): revealing the structure of the Rosette Nebula

Edward C. Moran, Evelyn J. Johnston, A. Z. Lugo-Aranda, Guillermo A. Blanc, J. K. Barrera-Ballesteros, Héctor J. Ibarra-Medel, José G. Fernández-Trincado, J. Eduardo Méndez-Delgado, W. J. Henney, Sumit K. Sarbadhicary, Niv Drory, Dmitry Bizyaev, Amy Jones, Alexandre Roman–Lopes, C. Román-Zúñiga, Jesús Hernández, Amelia M. Stutz, Kathryn Kreckel, S. F. Sánchez, Arindam Ghosh, Jason E. Ybarra, Mónica A Villa-Durango
article en
2 citations

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.

Monthly Notices of the Royal Astronomical SocietyVol. 543(2)
New Mexico State University (US), Space Telescope Science Institute (US), Davidson College (US), Johns Hopkins University (US), University of Pittsburgh (US), University of Concepción (CL), Carnegie Institution for Science (US), Lomonosov Moscow State University (RU), Heidelberg University (DE), Johns Hopkins Medicine (US), Universidad Católica del Norte (CL), National Solar Observatory (US), Chinese Academy of Science South America Center for Astronomy (CL), Université Bourgogne Franche-Comté (FR), Carnegie Observatories (US), Instituto de Astrofísica de Canarias (ES), Astronomical Institute of the Slovak Academy of Sciences (SK), Moscow State University (TJ), Instituto Tecnológico de Morelia (MX), University of Baltimore (US), University of La Serena (CL), The University of Texas at Austin (US), Universidad Nacional Autónoma de México (MX), Universidad Diego Portales (CL)
Openalex Percentile: Top 10%
Astrophysics and Star Formation Studies
2.31
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