Comment on "A Non-Parametric Estimate of Mass 'Scoured' in Galaxy Cores" (arXiv:1006.0488)

TL;DR

This paper critiques a previous study on galaxy core mass estimates, clarifying that its main conclusions were already established and addressing concerns about the core-Sersic model's validity.

Contribution

It clarifies that the main conclusions of Hopkins & Hernquist's work were previously published and defends the core-Sersic model against recent criticisms.

Findings

Previous conclusions were already published six years ago.

The core-Sersic model remains valid for galaxy core analysis.

The critique addresses and refutes specific concerns about the model.

Abstract

This comment is in response to the article titled "A Non-Parametric Estimate of Mass Scoured in Galaxy Cores" (arXiv:1006.0488) written by Hopkins and Hernquist. This comment politely mentions two relevant papers in which the main conclusion from Hopkins & Hernquist had already been published six years ago using the core-Sersic model. It then explains why Hopkins & Hernquist's concern about the core-Sersic model is not valid.