?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=The+most+magnificent+of+the+seven%3F+A+candidate+spin+and+spin+down+for+RX+J1605.3%2B3249&rft.creator=Mancini+Pires%2C+A&rft.creator=Haberl%2C+F&rft.creator=Zavlin%2C+V&rft.creator=Motch%2C+C&rft.creator=Zane%2C+S&rft.creator=Hohle%2C+M&rft.description=RX+J1605.3%2B3249+is+the+third+brightest+source+in+the+group+of+intriguing+isolated+neutron+stars+(INSs)+known+as+the+%60%60Magnificent+Seven''+(M7).+Crustal+heating+by+means+of+magnetic+field+decay+and+an+evolutionary+link+with+magnetars+may+explain+why+these+objects+rotate+slower+and+have+higher+thermal+luminosities+and+magnetic+field+intensities+than+standard+rotation-powered+pulsars+of+similar+age.+A+recent+XMM-Newton+observation+of+the+source+performed+in+AO11+finally+revealed+the+neutron+star+spin+period%2C+P+%3D+3.387864(16)+s.+Very+interestingly%2C+the+amplitude+of+the+modulation+was+found+to+be+energy-dependent+and+is+more+significantly+detected+when+the+search+is+restricted+to+photons+with+E%3E0.5+keV.+The+coherent+combination+of+the+AO11+data+with+past+observations+of+the+source+constrains+the+pulsar+spin-down+rate+and+dipolar+magnetic+field+at+the+%CB%9C3%CF%83+confidence+level%2C+at+a+value+that+is+the+highest+amongst+the+M7%2C+B_%7Bdip%7D%CB%9C8.1%C3%9710%5E%7B14%7D+G.+Further+observations+are+extremely+important+to+determine+a+precise+timing+solution%2C+as+well+as+to+perform+phase-resolved+spectroscopy.+These+will+give+invaluable+constraints+on+the+neutron+star+geometry+and+will+allow+one+to+confirm+the+high+value+of+spin+down%2C+which+would+place+the+source+closer+to+a+magnetar+than+any+other+M7+INS&rft.publisher=ESA+-+ESAC+-+European+Space+Agency&rft.date=2014-07&rft.type=Digital+scholarly+resource&rft.language=eng&rft.source=+++https%3A%2F%2Fwww.cosmos.esa.int%2Fweb%2Fxmm-newton%2F2014-sym...+%3Chttps%3A%2F%2Fwww.cosmos.esa.int%2Fweb%2Fxmm-newton%2F2014-symposium%2F%23presentations%3E+++++&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F1553129%2F