On the HI Content of MaNGA Major Merger Pairs

Abstract

The role of HI content in galaxy interactions is still under debate. To study the HI content of galaxy pairs at different merging stages, we compile a sample of 66 major-merger galaxy pairs and 433 control galaxies from the SDSS-IV MaNGA IFU survey. In this study, we adopt kinematic asymmetry as a new effective indicator to describe the merging stage of galaxy pairs. With archival data from the HI-MaNGA survey and new observations from the Five-hundred-meter Aperture Spherical Radio Telescope (FAST), we investigate the differences in HI gas fraction ($f_{\text{HI}}$), star formation rate (SFR), and HI star formation efficiency ($\mathrm{SF}{\mathrm{E}}_{\text{HI}}$) between the pair and control samples. Our results suggest that the HI gas fraction of major-merger pairs on average is marginally decreased by $\sim 15\%$ relative to isolated galaxies, implying mild HI depletion during galaxy interactions. Compared to isolated galaxies, pre-passage paired galaxies have similar $f_{\text{HI}}$, SFR and $\mathrm{SF}{\mathrm{E}}_{\text{HI}}$, while pairs during pericentric passage have weakly decreased $f_{\text{HI}}$ ($-0.10\pm 0.05$ dex), significantly enhanced SFR ($0.42\pm 0.11$ dex) and $\mathrm{SF}{\mathrm{E}}_{\text{HI}}$ ($0.48\pm 0.12$ dex). When approaching the apocenter, paired galaxies show marginally decreased $f_{\text{HI}}$ ($-0.05\pm 0.04$ dex), comparable SFR ($0.04\pm 0.06$ dex) and $\mathrm{SF}{\mathrm{E}}_{\text{HI}}$ ($0.08\pm 0.08$ dex). We propose the marginally detected HI depletion may originate from the gas consumption in fuelling the enhanced ${\mathrm{H}}_2$ reservoir of galaxy pairs. In addition, new FAST observations also reveal an HI absorber ($N_{\text{HI}}\sim 4.7\times 10^{21}{\text{ cm}}^{-2}$), which may suggest gas infalling and the triggering of AGN activity.

arXiv comment17 pages, 5 figures, accepted for publication in ApJ

References in corpus (65)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Astropy: A Community Python Package for Astronomy
• Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
• Gasdynamics and Starbursts in Major Mergers
• Galaxy Zoo : Morphologies derived from visual inspection of galaxies from the Sloan Digital Sky Survey
• CALIFA, the Calar Alto Legacy Integral Field Area survey: I. Survey presentation
• The size distribution of galaxies in the Sloan Digital Sky Survey
• Galaxy Zoo 1 : Data Release of Morphological Classifications for nearly 900,000 galaxies
• The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
• A Catalog of Bulge+Disk Decompositions and Updated Photometry for 1.12 Million Galaxies in the Sloan Digital Sky Survey
• The HIPASS Catalogue - I. Data Presentation
• The Sydney-AAO Multi-object Integral field spectrograph (SAMI)
• Galaxy Pairs in the Sloan Digital Sky Survey I: Star Formation, AGN Fraction, and the Luminosity/Mass-Metallicity Relation
• The 1000 Brightest HIPASS Galaxies: HI Properties
• The Arecibo Legacy Fast ALFA Survey: The ALFALFA Extragalactic HI Source Catalog
• The effect of galaxy mass ratio on merger--driven starbursts
• Star formation efficiency in galaxy interactions and mergers: a statistical study
• The GALEX Arecibo SDSS Survey. I. Gas Fraction Scaling Relations of Massive Galaxies and First Data Release
• xGASS: Total cold gas scaling relations and molecular-to-atomic gas ratios of galaxies in the local Universe
• The HI Content of Spirals. II. Gas Deficiency in Cluster Galaxies
• The Fundamental Performance of FAST with 19-beam Receiver at L Band
• H I, H II, and R-Band Observations of a Galactic Merger Sequence
• Galaxy Pairs in the Sloan Digital Sky Survey - V. Tracing changes in star formation rate and metallicity out to separations of 80 kpc
• Galaxy pairs in the Sloan Digital Sky Survey - IX: Merger-induced AGN activity as traced by the Wide-field Infrared Survey Explorer
• Galaxy pairs in the Sloan Digital Sky Survey - VI. The orbital extent of enhanced star formation in interacting galaxies
• The Metallicity Evolution of Interacting Galaxies
• The effect of the environment on the HI scaling relations
• Mapping galaxy encounters in numerical simulations: The spatial extent of induced star formation
• A Reservoir of Ionized Gas in the Galactic Halo to Sustain Star Formation in the Milky Way
• Interacting galaxies on FIRE-2: The connection between enhanced star formation and interstellar gas content
• Observations of HI Absorbing Gas in Compact Radio Sources at Cosmological Redshifts
• Tracing kinematic (mis)alignments in CALIFA merging galaxies: Stellar and ionized gas kinematic orientations at every merger stage
• Connection Between the Circumgalactic Medium and the Interstellar Medium of Galaxies: Results from the COS-GASS Survey
• Enhanced atomic gas fractions in recently merged galaxies: quenching is not a result of post-merger gas exhaustion
• Evolution in the H I Gas Content of Galaxy Groups: Pre-Processing and Mass Assembly in the Current Epoch
• Neutral Hydrogen (21 cm) Absorption in Seyfert Galaxies: Evidence for Free-free Absorption and Sub-kiloparsec Gaseous Disks
• The HI absorption "Zoo"
• The gas content of peculiar galaxies: strongly interacting systems
• The effects of a hot gaseous halo in galaxy major mergers
• xGASS: Gas-rich central galaxies in small groups and their connections to cosmic web gas feeding
• HI-MaNGA: HI Followup for the MaNGA Survey
• The Effect of Galaxy Interactions on Molecular Gas Properties
• Galaxy pairs in the SDSS - XIII. The connection between enhanced star formation and molecular gas properties in galaxy mergers
• HI-MaNGA: Tracing the physics of the neutral and ionized ISM with the second data release
• SDSS-IV MaNGA: Spatial Evolution of Star Formation Triggered by Galaxy Interactions
• Galaxy mergers moulding the circum-galactic medium - I. The impact of a major merger
• Cold gas and star formation in a merging galaxy sequence
• xGASS: HI fueling of star formation in disk-dominated galaxies
• Nearly all Massive Quiescent Disk Galaxies have a Surprisingly Large Atomic Gas Reservoir
• The neutral gas content of post-merger galaxies
• Local Benchmarks for the Evolution of Major-Merger Galaxies -- Spitzer Observations of a K-Band Selected Sample
• Effects on Galaxy Evolution: Pair Interactions versus Environment
• CO observations of major merger pairs at z=0: Molecular gas mass and star formation
• Merger Signatures in the Dynamics of Star-forming Gas
• SDSS-IV MaNGA: Kinematic Asymmetry as An Indicator of Galaxy Interaction in Paired Galaxies
• Prevalence of neutral gas in centres of merging galaxies
• The SAMI Galaxy Survey: gas content and interaction as the drivers of kinematic asymmetry
• Bivariate Luminosity Function of Galaxy Pairs
• Properties of Molecular Gas in Galaxies in Early and Mid Stage of Interaction: II. Molecular Gas Fraction
• HI Observations of Major-Merger Pairs at z = 0: atomic gas and star formation
• Diffuse X-ray-emitting Gas in Major Mergers
• Circumnuclear and infalling HI gas in a merging galaxy pair at z=0.123
• Prevalence of neutral gas in centres of merging galaxies-II: nuclear HI and multi-wavelength properties
• The identification of physical close galaxy pairs
• Observing the Effects of Galaxy Interactions on the Circumgalactic Medium

Cited by in corpus (14)

• Post-Starburst Properties of Post-Merger Galaxies
• FAST-ASKAP Synergy: Quantifying Coexistent Tidal and Ram Pressure Strippings in the NGC 4636 Group
• Distance of PSR B0458+46 indicated by FAST HI absorption observations
• The Subtle Effects of Mergers on Star Formation in Nearby Galaxies
• The ALMaQUEST Survey XV: The Dependence of the Molecular-to-Atomic Gas Ratios on Resolved Optical Diagnostics
• FEASTS Combined with Interferometry. III. The Low Column Density HI Around M51 and Possibility of Turbulent-mixing Gas Accretion
• CO Observations of Early-mid Stage Major Mergers in the MaNGA Survey
• HI Absorption in Low-power Radio AGNs Detected by FAST
• HI 21-cm absorption in radio-loud AGN with double-peaked [OIII] emission
• HI Content of Group Galaxies from the FAST All Sky HI Survey
• HI Gas and Star Formation in Major Galaxy Pairs from the FAST All-Sky HI Survey (FASHI)
• Radial Distributions of Star Formation and Gas-phase Metallicity in Spiral-Elliptical Galaxy Pairs
• Comparison of Global HI and H$\alpha$ Line Profiles in MaNGA Galaxy Pairs with FAST
• Recent Developments on the HI Gas of Low-Redshift Galaxies Seen by the 21cm Emission Lines