Using archival XMM–Newton observations of the diffuse and unresolved components’ emission in the inner disc of M33, we exclude the possible contribution from narrow line emission in the energy range 0.5–5 keV more intense than 10−6–10−5 erg s−1. Under the hypothesis that sterile neutrinos constitute the majority of the dark matter in M33, we use this result in order to put constraints on their parameter space in the 1–10 keV mass range.
Constraints on sterile neutrino dark matter from XMM-Newton observations of M33 / Borriello, Enrico; Paolillo, Maurizio; Miele, Gennaro; Longo, Giuseppe; Owen, Robert. - In: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. - ISSN 0035-8711. - 425:(2012), pp. 1628-1632. [10.1111/j.1365-2966.2012.21498.x]
Constraints on sterile neutrino dark matter from XMM-Newton observations of M33
Enrico Borriello;Maurizio Paolillo;Gennaro Miele;Giuseppe Longo;
2012
Abstract
Using archival XMM–Newton observations of the diffuse and unresolved components’ emission in the inner disc of M33, we exclude the possible contribution from narrow line emission in the energy range 0.5–5 keV more intense than 10−6–10−5 erg s−1. Under the hypothesis that sterile neutrinos constitute the majority of the dark matter in M33, we use this result in order to put constraints on their parameter space in the 1–10 keV mass range.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
