SDSS-IV MaNGA: A serendipitous observation of a potential gas accretion event

Abstract

The nature of warm, ionized gas outside of galaxies may illuminate several key galaxy evolutionary processes. A serendipitous observation by the MaNGA survey has revealed a large, asymmetric H$\alpha$ complex with no optical counterpart that extends $\approx 8"$ ($\approx 6.3$ kpc) beyond the effective radius of a dusty, starbursting galaxy. This H$\alpha$ extension is approximately three times the effective radius of the host galaxy and displays a tail-like morphology. We analyze its gas-phase metallicities, gaseous kinematics, and emission-line ratios, and discuss whether this H$\alpha$ extension could be diffuse ionized gas, a gas accretion event, or something else. We find that this warm, ionized gas structure is most consistent with gas accretion through recycled wind material, which could be an important process that regulates the low-mass end of the galaxy stellar mass function.

arXiv commentAccepted for publication in ApJ; 11 pages, 6 figures

References in corpus (80)

• Stellar population synthesis at the resolution of 2003
• The Sloan Digital Sky Survey: Technical Summary
• The chemical composition of the Sun
• The Seventh Data Release of the Sloan Digital Sky Survey
• The Origin of the Mass--Metallicity Relation: Insights from 53,000 Star-Forming Galaxies in the SDSS
• The physical properties of star forming galaxies in the low redshift universe
• Correcting for the Effects of Interstellar Extinction
• Star Formation in the Milky Way and Nearby Galaxies
• Detailed Structural Decomposition of Galaxy Images
• Stellar Masses and Star Formation Histories for 10^5 Galaxies from the Sloan Digital Sky Survey
• The 2.5 m Telescope of the Sloan Digital Sky Survey
• How Do Galaxies Get Their Gas?
• Parametric Recovery of Line-of-Sight Velocity Distributions from Absorption-Line Spectra of Galaxies via Penalized Likelihood
• The Host Galaxies and Classification of Active Galactic Nuclei
• Galaxy Bimodality due to Cold Flows and Shock Heating
• Cold streams in early massive hot haloes as the main mode of galaxy formation
• Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
• UV Star Formation Rates in the Local Universe
• Galaxies on FIRE (Feedback In Realistic Environments): Stellar Feedback Explains Cosmologically Inefficient Star Formation
• Using Strong Lines to Estimate Abundances in Extragalactic HII Regions and Starburst Galaxies
• The Multi-Object, Fiber-Fed Spectrographs for SDSS and the Baryon Oscillation Spectroscopic Survey
• Galaxies in a simulated $\Lambda$CDM Universe I: cold mode and hot cores
• A Catalog of Bulge+Disk Decompositions and Updated Photometry for 1.12 Million Galaxies in the Sloan Digital Sky Survey
• Cold gas accretion in galaxies
• The COS-Halos Survey: Physical Conditions and Baryonic Mass in the Low-Redshift Circumgalactic Medium
• The Large, Oxygen-Rich Halos of Star-Forming Galaxies Are A Major Reservoir of Galactic Metals
• Mass, Metal, and Energy Feedback in Cosmological Simulations
• Kiloparsec-scale outflows are prevalent among luminous AGN: outflows and feedback in the context of the overall AGN population
• A characteristic oxygen abundance gradient in galaxy disks unveiled with CALIFA
• Feedback and Recycled Wind Accretion: Assembling the z=0 Galaxy Mass Function
• Nebular Emission from Star-Forming Galaxies
• The MaNGA Integral Field Unit Fiber Feed System for the Sloan 2.5 m Telescope
• Galaxy Evolution in Cosmological Simulations with Outflows II: Metallicities and Gas Fractions
• The Composition Gradient in M101 Revisited. II. Electron Temperatures and Implications for the Nebular Abundance Scale
• The COS-Halos Survey: An Empirical Description of the Metal-Line Absorption in the Low-Redshift Circumgalactic Medium
• Direct Oxygen Abundances for Low Luminosity LVL Galaxies
• The warm ionized medium in spiral galaxies
• Moving mesh cosmology: tracing cosmological gas accretion
• Resolved Galaxies in the Hubble Ultra Deep Field: Star Formation in Disks at High Redshift
• Four phases of angular-momentum buildup in high-z galaxies: from cosmic-web streams through an extended ring to disc and bulge
• On the Origin of [OII] Emission in Red Sequence and Post-starburst Galaxies
• MIUSCAT: extended MILES spectral coverage. I. Stellar populations synthesis models
• New Strong Line Abundance Diagnostics for \HII Regions: Effects of $\kappa$-Distributed Electron Energies and New Atomic Data
• SDSS-IV/MaNGA: Spectrophotometric Calibration Technique
• A Morphological Catalog of Galaxies in the Hubble Deep Field
• Signatures of Cool Gas Fueling a Star-Forming Galaxy at Redshift 2.3
• Accretion of gas onto nearby spiral galaxies
• Galaxies in a Simulated $\Lambda$CDM Universe II: Observable Properties and Constraints on Feedback
• WHAM Observations of H-Alpha, [S II], and [N II] toward the Orion and Perseus Arms: Probing the Physical Conditions of the Warm Ionized Medium
• Star formation sustained by gas accretion
• Galaxy Morphologies in the Hubble Ultra Deep Field: Dominance of Linear Structures at the Detection Limit
• A Multiwavelength Optical Emission Line Survey of Warm Ionized Gas in the Galaxy
• Properties of gas in and around galaxy haloes
• The Direct Detection of Cool, Metal-Enriched Gas Accretion onto Galaxies at z ~ 0.5
• Theoretical Modeling of Star-Forming Galaxies I. Emission Line Diagnostic Grids for Local and Low-Metallicity Galaxies
• IZI: Inferring the Gas Phase Metallicity (Z) and Ionization Parameter (q) of Ionized Nebulae using Bayesian Statistics
• Evidence for an Additional Heat Source in the Warm Ionized Medium of Galaxies
• An H-alpha survey aiming at the detection of extraplanar diffuse ionized gas in halos of edge-on spiral galaxies. I. How common are gaseous halos among non-starburst galaxies?
• Further Spectroscopy of the Diffuse Ionized Gas in NGC 891 and Evidence for a Secondary Source of Ionization
• Upgrading electron temperature and electron density diagnostic diagrams of forbidden line emission
• Possible Signatures of a Cold-Flow Disk from MUSE using a z=1 galaxy--quasar pair towards SDSSJ1422-0001
• Ionization Sources and Physical Conditions in the Diffuse Ionized Gas Halos of Four Edge-On Galaxies
• P-MaNGA: Emission Lines Properties - Gas Ionisation and Chemical Abundances from Prototype Observations
• Localized starbursts in dwarf galaxies produced by impact of low metallicity cosmic gas clouds
• P-MaNGA: Full spectral fitting and stellar population maps from prototype observations
• P-MaNGA: Gradients in Recent Star Formation Histories as Diagnostics for Galaxy Growth and Death
• The size--density relation of extragalactic HII regions
• Gas Accretion is Dominated by Warm Ionized Gas in Milky Way-Mass Galaxies at z ~ 0
• Local tadpole galaxies: dynamics and metallicity
• Monte Carlo Photoionization Simulations of Diffuse Ionized Gas
• Extraplanar Emission-Line Gas in Edge-On Spiral Galaxies. II. Optical Spectroscopy
• Emission Line Ratios and Variations in Temperature and Ionization State in the Diffuse Ionized Gas of Five Edge-on Galaxies
• Local Tadpole Galaxies
• Searching for additional heating - [OII] emission in the diffuse ionized gas of NGC891, NGC4631 and NGC3079
• Tadpole Galaxies in the Hubble Ultra Deep Field
• Detection of [OI] 6300 and Other Diagnostic Emission Lines in the Diffuse Ionized Gas of M33 with Gemini-North
• The Gas Phase Mass Metallicity Relation for Dwarf Galaxies: Dependence on Star Formation Rate and HI Gas Mass
• Infrared Spectroscopy of the Diffuse Ionized Halo of NGC 891
• A Minor Merger Caught In The Act Of Fueling The AGN In Mrk 509
• Diffuse ionized gas in spiral galaxies and the disk-halo interaction

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• The Thirteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey MApping Nearby Galaxies at Apache Point Observatory
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• Ionised gas structure of 100 kpc in an over-dense region of the galaxy group COSMOS-Gr30 at z ~ 0.7
• What determines the local metallicity of galaxies: global stellar mass, local stellar mass surface density or star formation rate?
• SDSS IV MaNGA: Discovery of an $H_{\alpha }$ blob associated with a dry galaxy pair -- ejected gas or a `dark' galaxy candidate?
• Outlying H$\alpha$ emitters in SDSS IV MaNGA
• SDSS-IV MaNGA: the physical origin of off-galaxy H$\alpha$ blobs in the local Universe
• Discovery of faint double-peak Halpha emission in the halo of low redshift galaxies