CrossRef Open Access 2021 3 sitasi

Technical comment on the paper of Dessert et al. "The dark matter interpretation of the 3.5 keV line is inconsistent with blank-sky observations"

Alexey Boyarsky Denys Malyshev Oleg Ruchayskiy Denys Savchenko

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Abstrak

An unidentified line at energy around 3.5 keV was detected in the spectra of dark matter-dominated objects. Recent work [1] used 30~Msec of XMM-Newton blank-sky observations to constrain the admissible line flux, challenging its dark matter decay origin. We demonstrate that these bounds are overestimated by more than an order of magnitude due to improper background modeling. Therefore, the dark matter interpretation of the 3.5~keV signal remains viable.

Penulis (4)

Alexey Boyarsky

Denys Malyshev

Oleg Ruchayskiy

Denys Savchenko

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Boyarsky, A., Malyshev, D., Ruchayskiy, O., Savchenko, D. (2021). Technical comment on the paper of Dessert et al. "The dark matter interpretation of the 3.5 keV line is inconsistent with blank-sky observations". https://doi.org/10.21468/scipostastrocore.1.1.001

Akses Cepat

Lihat di Sumber doi.org/10.21468/scipostastrocore.1.1.001

Informasi Jurnal

Tahun Terbit: 2021
Bahasa: en
Total Sitasi: 3×
Sumber Database: CrossRef
DOI: 10.21468/scipostastrocore.1.1.001
Akses: Open Access ✓