Testing the Momentum-driven Supernova Feedback Paradigm in M31

Author:

Sarbadhicary Sumit K.ORCID,Martizzi Davide,Ramirez-Ruiz EnricoORCID,Koch EricORCID,Auchettl KatieORCID,Badenes CarlesORCID,Chomiuk LauraORCID

Abstract

Abstract Momentum feedback from isolated supernova remnants (SNRs) have been increasingly recognized by modern cosmological simulations as a resolution-independent means to implement the effects of feedback in galaxies, such as turbulence and winds. However, the integrated momentum yield from SNRs is uncertain due to the effects of SN clustering and interstellar medium (ISM) inhomogeneities. In this paper, we use spatially resolved observations of the prominent 10 kpc star-forming ring of M31 to test models of mass-weighted ISM turbulence driven by momentum feedback from isolated, nonoverlapping SNRs. We use a detailed stellar age distribution (SAD) map from the Panchromatic Hubble Andromeda Treasury survey, observationally constrained SN delay-time distributions, and maps of the atomic and molecular hydrogen to estimate the mass-weighted velocity dispersion using the Martizzi et al. ISM turbulence model. Our estimates are within a factor of two of the observed mass-weighted velocity dispersion in most of the ring, but exceed observations at densities ≲0.2 cm−3 and SN rates >2.1 × 10−4 SN yr−1 kpc−2, even after accounting for plausible variations in SAD models and ISM scale height assumptions. We conclude that at high SN rates the momentum deposited is most likely suppressed by the nonlinear effects of SN clustering, while at low densities, SNRs reach pressure equilibrium before the cooling phase. These corrections should be introduced in models of momentum-driven feedback and ISM turbulence.

Funder

NSF

Publisher

American Astronomical Society

Subject

Space and Planetary Science,Astronomy and Astrophysics

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. X-rays from a newly discovered superbubble in M31;Monthly Notices of the Royal Astronomical Society;2024-08-24

2. Detection of Metal Enrichment by SN 2011jm in NGC 4809;The Astrophysical Journal Letters;2024-02-01

3. Quantifying the energy balance between the turbulent ionised gas and young stars;Astronomy & Astrophysics;2023-10

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