Details

Autor(en) / Beteiligte

• Stark, David V
• Kannappan, Sheila J
• Wei, Lisa H
• Baker, Andrew J
• Leroy, Adam K
• Eckert, Kathleen D
• Vogel, Stuart N

Titel

THE FUELING DIAGRAM: LINKING GALAXY MOLECULAR-TO-ATOMIC GAS RATIOS TO INTERACTIONS AND ACCRETION

Ist Teil von

• The Astrophysical journal, 2013-05, Vol.769 (1), p.1-21

Ort / Verlag

United States

Erscheinungsjahr

2013

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• The aim of this study is to assess how external factors such as local interactions and fresh gas accretion influence the global interstellar medium of galaxies, we analyze the relationship between recent enhancements of central star formation and total molecular-to-atomic (H[sub 2]/H I) gas ratios, using a broad sample of field galaxies spanning early-to-late type morphologies, stellar masses of 107.2-1011.2M, and diverse stages of evolution. Multiple lines of evidence suggest connected evolutionary sequences in the fueling diagram. In particular, tracking total gas-to-stellar mass ratios within the fueling diagram provides evidence of fresh gas accretion onto low-mass E/S0s emerging from their central star-burst episodes. Drawing on a comprehensive literature search, we suggest that virtually all galaxies follow the same evolutionary patterns found in our broad sample.