Understanding the chemical evolution of blue Edge-on Low Surface Brightness Galaxies

Abstract

We present a sample of 330 blue edge-on low surface brightness galaxies (ELSBGs). To understand the chemical evolution of LSBGs, we derived the gas-phase abundance and the [$\alpha$/Fe] ratio. Compared with star-forming galaxies, ELSBGs show a flatter trend in the mass-metallicity ($M_{\ast }-Z$) relation, suggesting that the oxygen abundance enhancement is inefficient. We focus on 77 ELSBGs with HI data and found the closed-box model can not explain their gas fraction and metallicity relation, implying that infall and/or outflow is needed. We derived the [$\alpha$/Fe] ratio of normal ELSBG ($<$ 10${}^{9.5}$M$\odot$) and massive ELSBG ($>=$ 10${}^{9.5}$M$\odot$) using single stellar population grids from MILES stellar library. The mean [$\alpha$/Fe] ratios are 0.18 and 0.4 for normal ELSBG and massive ELSBG, respectively. We discussed that the long time-scale of star-formation, and/or metal-rich gas outflow event caused by SNe Ia winds are likely responsible for the $\alpha$-enhancement of massive ELSBGs.

9 pages, 9 figures, Accepted for publication in ApJ

References in corpus (15)

• Modelling the spectral energy distribution of galaxies. IV Correcting apparent disk scalelengths and central surface brightnesses for the effect of dust at optical and near-infrared wavelengths
• Stellar Initial Mass Function Varies with Metallicities and Time
• The ALFALFA-SDSS Galaxy Catalog
• Low Surface Brightness Galaxies selected from the 40% sky area of the ALFALFA HI survey.I.Sample and statistical properties
• Galaxy And Mass Assembly (GAMA): detection of low-surface-brightness galaxies from SDSS data
• Lessons on Star-forming Ultra-diffuse Galaxies from The Stacked Spectra of Sloan Digital Sky Survey
• An expanded catalogue of low surface brightness galaxies in the Coma cluster using Subaru/Suprime-Cam
• Molecular Gas and Star-Formation In Low Surface Brightness Galaxies
• An $\mathrm{H}\alpha$ Imaging Survey of the Low Surface Brightness Galaxies Selected from the Spring Sky Region of the 40% ALFALFA HI Survey
• Long-slit Spectroscopy of Edge-on Low Surface Brightness Galaxies
• A Sample of Edge-on HI-rich low-surface-brightness Galaxy Candidates in the 40% ALFALFA Catalog
• The giant low surface brightness galaxy Malin 1: new constraints for its molecular gas mass from GBT/ARGUS observations
• Nuclear X-ray Activity in Low-Surface-Brightness Galaxies: Prospects for Constraining the Local Black Hole Occupation Fraction with a Chandra Successor Mission
• 12CO(3-2) Emission in Spiral Galaxies: Warm Molecular Gas in Action?
• The HI dominated Low Surface Brightness Galaxy KKR17

Cited by in corpus (3)

• Stellar Metallicity of Galaxies: New Insight on the Formation and Evolution of Low Surface Brightness Galaxies in the IllustrisTNG Simulation
• Formation of A Nuclear Star Cluster Through A Merger Event In The Low Surface Brightness Galaxy AGC 223218
• Toward Understanding the Evolutionary Role of Star-forming Lenticular Galaxies: New HI Detections and Comparison with Quiescent S0s and Red Spirals