Analysis of spatially resolved stellar populations and emission line properties in nearby galaxies with J-PLUS data. II-Results for the M51 group and first comparison with the M101 group

Abstract

We characterize the spatially resolved stellar population and emission-line properties of galaxies in the M51 group using the same methodology previously applied to the M101 group, aiming to understand how environmental processes shape galaxy properties across different groups. Properties are derived by applying the \textsc{AlStar} spectral fitting code to multi-band datacubes from the Javalambre Photometric Local Universe Survey (J-PLUS). We present spatially resolved maps of the main stellar population and emission-line properties for the M51 group galaxies. The interacting pair M51a/b displays clearly distinct properties: M51a shows prominent star-forming spiral arms, while its companion is essentially an early-type retired galaxy. M63 exhibits asymmetries in stellar age, dust attenuation, and H${}_{\alpha }$ equivalent width, consistent with outside-in quenching likely related to a past interaction. Relations between physical properties and stellar mass surface density (${\Sigma }_{\star }$) were investigated. The age-${\Sigma }_{\star }$ and nebular metallicity-${\Sigma }_{\star }$ relations are flatter than those in the M101 group. In addition, all galaxies align with the resolved star-forming main sequence, except M51b, which shows the properties of a retired galaxy. Overall, the M51 group displays signatures of more advanced dynamical evolution than the M101 group. This is evidenced by flattened age and nebular metallicity gradients, enhanced dust content, and signs of environmental quenching in some members. In contrast, the less dynamically evolved M101 group largely preserves its inside-out formation signatures. While these results suggest that group mass and interactions influence galaxy evolution even in low-mass environments, the comparison of two systems remains limited by small-number statistics. This study highlights the potential of J-PLUS data for IFS-like analyses of nearby galaxies.

arXiv commentAccepted for publication in Astronomy & Astrophysics on 15/03/2026

References in corpus (67)

• Stellar population synthesis at the resolution of 2003
• Galactic Stellar and Substellar Initial Mass Function
• The Dust Content and Opacity of Actively Star-Forming Galaxies
• The Environmental Dependence of the Relations between Stellar Mass, Structure, Star Formation and Nuclear Activity in Galaxies
• The ages and metallicities of galaxies in the local universe
• Environmental Effects on Late-Type Galaxies in Nearby Clusters
• A comprehensive classification of galaxies in the SDSS: How to tell true from fake AGN?
• The stellar mass assembly of galaxies from z=0 to z=4. Analysis of a sample selected in the rest-frame near-infrared with Spitzer
• The O3N2 and N2 abundance indicators revisited: improved calibrations based on CALIFA and Te-based literature data
• Optical Spectroscopy and Nebular Oxygen Abundances of the Spitzer/SINGS Galaxies
• Structure and Kinematics of Early-Type Galaxies from Integral-Field Spectroscopy
• The Properties of Poor Groups of Galaxies: I. Spectroscopic Survey and Results
• The Composition Gradient in M101 Revisited. II. Electron Temperatures and Implications for the Nebular Abundance Scale
• An Objective Definition for the Main Sequence of Star-Forming Galaxies
• Galaxy groups in the 2dFGRS: the group-finding algorithm and the 2PIGG catalogue
• Can retired galaxies mimic active galaxies? Clues from the Sloan Digital Sky Survey
• Evidence for Mature Bulges and an Inside-out Quenching Phase 3 Billion Years After the Big Bang
• The CALIFA survey across the Hubble sequence: Spatially resolved stellar population properties in galaxies
• The Westerbork HI Survey of Spiral and Irregular Galaxies I. HI Imaging of Late-type Dwarf Galaxies
• The history of star-forming galaxies in the Sloan Digital Sky Survey
• The Effect of Mass Ratio on the Morphology and Time-scales of Disc Galaxy Mergers
• J-PLUS: The Javalambre Photometric Local Universe Survey
• Spatially-Resolved Spectroscopic Properties of Low-Redshift Star-Forming Galaxies
• Abundances of metal-rich H II regions in M51
• The Southern Photometric Local Universe Survey (S-PLUS): improved SEDs, morphologies and redshifts with 12 optical filters
• The star formation history of CALIFA galaxies: Radial structures
• Simulations of the grand design galaxy M51: a case study for analysing tidally induced spiral structure
• Star formation along the Hubble sequence: Radial structure of the star formation of CALIFA galaxies
• GASP IX. Jellyfish galaxies in phase-space: an orbital study of intense ram-pressure stripping in clusters
• Ram pressure feeding super-massive black holes
• Diffuse ionized gas in galaxies across the Hubble sequence at the CALIFA resolution
• How do central and satellite galaxies quench? -- Insights from spatially resolved spectroscopy in the MaNGA survey
• Insights on the stellar mass-metallicity relation from the CALIFA survey
• Constraints on the production and escape of ionizing radiation from the emission-line spectra of metal-poor star-forming galaxies
• Do galaxy global relationships emerge from local ones? The SDSS IV MaNGA surface mass density-metallicity relation
• CHAOS II: Gas-Phase Abundances in NGC 5194
• Spatially resolved star formation and fuelling in galaxy interactions
• Spatially Resolved Star Formation and Inside-out Quenching in the TNG50 Simulation and 3D-HST Observations
• Simulations of the star-forming molecular gas in an interacting M51-like galaxy
• Spatially resolved stellar, dust and gas properties of the post-interacting Whirlpool Galaxy system
• GASP IV: A muse view of extreme ram-pressure stripping in the plane of the sky: the case of jellyfish galaxy JO204
• A comprehensive study of reported high metallicity giant HII regions. I. Detailed abundance analysis
• The spatially resolved star formation history of CALIFA galaxies: Cosmic time scales
• The Distance to M51
• HI study of the warped spiral galaxy NGC5055: a disk/dark matter halo offset?
• Galaxy interactions II: High density environments
• HII Region Luminosity Function of the Interacting Galaxy M51
• Integral field unit spectroscopy of 10 early type galactic nuclei: I - Principal component analysis Tomography and nuclear activity
• Extracting H$\alpha$ flux from photometric data in the J-PLUS survey
• A panchromatic spatially-resolved analysis of nearby galaxies -- I. Sub-kpc scale Main Sequence in grand-design spirals
• A Petal of the Sunflower: Photometry of the Stellar Tidal Stream in the Halo of Messier 63 (NGC 5055)
• Deep Imaging of M51: a New View of the Whirlpool's Extended Tidal Debris
• J-PLUS: 2-D analysis of the stellar population in NGC 5473 and NGC 5485
• J-PLUS: measuring $\mathrm{H}\alpha$ emission line fluxes in the nearby universe
• Star Formation in M51 Triggered by Galaxy Interaction
• The miniJPAS survey: The role of group environment in quenching the star formation
• J-PLUS: Uncovering a large population of extreme [OIII] emitters in the local Universe
• High-resolution, 3D radiative transfer modelling V. A detailed model of the M51 interacting pair
• On the connection between galactic downsizing and the most fundamental galactic scaling relations
• The SAMI Galaxy Survey: galaxy spin is more strongly correlated with stellar population age than mass or environment
• Estimating stellar population and emission line properties in S-PLUS galaxies
• The Stellar Halo and Tidal Streams of Messier 63
• Physical Properties of H II Regions in M51 from Spectroscopic Observations
• J-PLUS: Spectroscopic validation of H$\alpha$ emission line maps in spatially resolved galaxies
• Spatially resolved stellar populations and emission lines properties in nearby galaxies with J-PLUS -- I. Method and first results for the M101 group
• The S-PLUS Fornax Project (S+FP): Mapping H$\alpha$+[NII] emission in 77 Fornax galaxy members reaching $\sim$4 Rvir
• Exploring the spatially-resolved capabilities of the J-PAS survey with Py2DJPAS