Comment on the paper "Calorimetric Dark Matter Detection with Galactic Center Gas Clouds"

Abstract

The paper "Calorimetric Dark Matter Detection with Galactic Center Gas Clouds" (Bhoonah et al. 2018) aims to derive limits on dark matter interactions by demanding that heat transfer due to DM interactions is less than that by astrophysical cooling, using clouds in the hot, high-velocity nuclear outflow wind of the Milky Way ($T_{wind}\sim 10^{6-7}$ K, $V_{wind}\sim$ 330 km/s). We argue that clouds in such an extreme environment cannot be assumed to be stable over the long timescales associated with their radiative cooling rates. Furthermore, Bhoonah et al. (2018) uses incorrect parameters for their clouds.

arXiv comment2 pages, 1 figure. Version appearing in Phys. Rev. Lett

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Cited by in corpus (14)

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• Galactic Center Gas Clouds and Novel Bounds on Ultra-Light Dark Photon, Vector Portal, Strongly Interacting, Composite, and Super-Heavy Dark Matter
• Constraining Primordial Black Holes with Dwarf Galaxy Heating
• A constraint on light primordial black holes from the interstellar medium temperature
• Earth as a transducer for dark-photon dark-matter detection
• Interstellar Gas Heating by Primordial Black Holes
• No room to hide: implications of cosmic-ray upscattering for GeV-scale dark matter
• Search for dark-photon dark matter in the SuperMAG geomagnetic field dataset
• Constraining axion and compact dark matter with interstellar medium heating
• Impacts of Jets and Winds From Primordial Black Holes
• Sub-keV dark matter can strongly ionize molecular clouds
• Unified Gas Heating Constraints on Extended Dark Matter Compact Objects
• Forecast constraints on the axion-photon coupling from interstellar medium heating