FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3128118423> ?p ?o ?g. }

• W3128118423 endingPage "A60" @default.
• W3128118423 startingPage "A60" @default.
• W3128118423 abstract "The presence of relativistic electrons within the diffuse gas phase of galaxy clusters is now well established, but their detailed origin remains unclear. Cosmic ray protons are also expected to accumulate during the formation of clusters and would lead to gamma-ray emission through hadronic interactions within the thermal gas. Recently, the detection of gamma-ray emission has been reported toward the Coma cluster with Fermi-LAT. Assuming that this gamma-ray emission arises from hadronic interactions in the ICM, we aim at exploring the implication of this signal on the cosmic ray content of the Coma cluster. We use the MINOT software to build a physical model of the cluster and apply it to the Fermi-LAT data. We also consider contamination from compact sources and the impact of various systematic effects. We confirm that a significant gamma-ray signal is observed within the characteristic radius $theta_{500}$ of the Coma cluster, with a test statistic TS~27 for our baseline model. The presence of a possible point source may account for most of the observed signal. However, this source could also correspond to the peak of the diffuse emission of the cluster itself and extended models match the data better. We constrain the cosmic ray to thermal energy ratio within $R_{500}$ to $X_{rm CRp}=1.79^{+1.11}_{-0.30}$% and the slope of the energy spectrum of cosmic rays to $alpha=2.80^{+0.67}_{-0.13}$. Finally, we compute the synchrotron emission associated with the secondary electrons produced in hadronic interactions assuming steady state. This emission is about four times lower than the overall observed radio signal, so that primary cosmic ray electrons or reacceleration of secondary electrons is necessary to explain the total emission. Assuming an hadronic origin of the signal, our results provide the first quantitative measurement of the cosmic ray proton content in a cluster.[Abridged]" @default.
• W3128118423 created "2021-02-15" @default.
• W3128118423 creator A5019841695 @default.
• W3128118423 creator A5027826119 @default.
• W3128118423 creator A5061249522 @default.
• W3128118423 creator A5062737227 @default.
• W3128118423 creator A5085150585 @default.
• W3128118423 date "2021-04-01" @default.
• W3128118423 modified "2023-10-14" @default.
• W3128118423 title "<i>γ</i>-ray detection toward the Coma cluster with <i>Fermi</i>-LAT: Implications for the cosmic ray content in the hadronic scenario" @default.
• W3128118423 cites W1579328270 @default.
• W3128118423 cites W1783065100 @default.
• W3128118423 cites W1833408884 @default.
• W3128118423 cites W1966928945 @default.
• W3128118423 cites W1978193295 @default.
• W3128118423 cites W1985671672 @default.
• W3128118423 cites W1998776188 @default.
• W3128118423 cites W2004441010 @default.
• W3128118423 cites W2006888235 @default.
• W3128118423 cites W2009112801 @default.
• W3128118423 cites W2011255110 @default.
• W3128118423 cites W2011301426 @default.
• W3128118423 cites W2021598093 @default.
• W3128118423 cites W2023954600 @default.
• W3128118423 cites W2026763888 @default.
• W3128118423 cites W2039177413 @default.
• W3128118423 cites W2042939888 @default.
• W3128118423 cites W2044661517 @default.
• W3128118423 cites W2047260325 @default.
• W3128118423 cites W2056683758 @default.
• W3128118423 cites W2061675816 @default.
• W3128118423 cites W2061939373 @default.
• W3128118423 cites W2083185068 @default.
• W3128118423 cites W2089454179 @default.
• W3128118423 cites W2091762567 @default.
• W3128118423 cites W2093330278 @default.
• W3128118423 cites W2093887493 @default.
• W3128118423 cites W2099567795 @default.
• W3128118423 cites W2102220052 @default.
• W3128118423 cites W2108080625 @default.
• W3128118423 cites W2120274945 @default.
• W3128118423 cites W2123220461 @default.
• W3128118423 cites W2124322760 @default.
• W3128118423 cites W2132815890 @default.
• W3128118423 cites W2133057257 @default.
• W3128118423 cites W2135625048 @default.
• W3128118423 cites W2146292423 @default.
• W3128118423 cites W2148590211 @default.
• W3128118423 cites W2151306448 @default.
• W3128118423 cites W2153238662 @default.
• W3128118423 cites W2154811628 @default.
• W3128118423 cites W2157917411 @default.
• W3128118423 cites W2163617323 @default.
• W3128118423 cites W2166251801 @default.
• W3128118423 cites W2167277890 @default.
• W3128118423 cites W2169717511 @default.
• W3128118423 cites W2170070152 @default.
• W3128118423 cites W2170408727 @default.
• W3128118423 cites W2405681948 @default.
• W3128118423 cites W2575058744 @default.
• W3128118423 cites W2576810844 @default.
• W3128118423 cites W2732354414 @default.
• W3128118423 cites W2756563915 @default.
• W3128118423 cites W2885462922 @default.
• W3128118423 cites W2958710062 @default.
• W3128118423 cites W2962754674 @default.
• W3128118423 cites W2996883490 @default.
• W3128118423 cites W3027520426 @default.
• W3128118423 cites W3045642726 @default.
• W3128118423 cites W3092297689 @default.
• W3128118423 cites W3098383614 @default.
• W3128118423 cites W3098657930 @default.
• W3128118423 cites W3099150453 @default.
• W3128118423 cites W3099891745 @default.
• W3128118423 cites W3100377699 @default.
• W3128118423 cites W3100980353 @default.
• W3128118423 cites W3101796712 @default.
• W3128118423 cites W3102014803 @default.
• W3128118423 cites W3103058143 @default.
• W3128118423 cites W3103467909 @default.
• W3128118423 cites W3104652416 @default.
• W3128118423 cites W3105180953 @default.
• W3128118423 cites W3105194527 @default.
• W3128118423 cites W3105262062 @default.
• W3128118423 cites W3105451763 @default.
• W3128118423 cites W3105992862 @default.
• W3128118423 cites W3124657577 @default.
• W3128118423 cites W3212194579 @default.
• W3128118423 cites W4288603149 @default.
• W3128118423 cites W4289812967 @default.
• W3128118423 cites W4292875581 @default.
• W3128118423 cites W4293088685 @default.
• W3128118423 cites W4293183835 @default.
• W3128118423 doi "https://doi.org/10.1051/0004-6361/202039660" @default.
• W3128118423 hasPublicationYear "2021" @default.
• W3128118423 type Work @default.
• W3128118423 sameAs 3128118423 @default.
• W3128118423 citedByCount "22" @default.

• next