Matches in SemOpenAlex for { <https://semopenalex.org/work/W1869883100> ?p ?o ?g. }
- W1869883100 endingPage "589" @default.
- W1869883100 startingPage "581" @default.
- W1869883100 abstract "The transient neutron star low-mass X-ray binary EXO 1745−248, located in the globular cluster Terzan 5, was detected during its quiescent state with Chandra in 2003. The source displayed a 0.5–10 keV quiescent X-ray luminosity of Lq∼ 1033 (D/5.5 kpc)2 erg s−1, which was completely dominated by hard non-thermal emission. This is at odds with other non-pulsating neutron stars that typically show detectable soft thermal emission at such quiescent luminosities. Here we use three additional Chandra observations, performed in 2009 and 2011, to further study the quiescent properties of EXO 1745−248. We find that the power-law intensity varies considerably up to a factor of ∼3 within hours and by about one order of magnitude between the different epochs. We discuss the implications of the observed change in quiescent flux for the interpretation of the hard power-law emission. We constrain the neutron star surface temperature as seen by a distant observer to kT∞≲ 42 eV and the thermal bolometric luminosity to Lthq, bol≲ 7 × 1031 (D/5.5 kpc)2 erg s−1. This confirms that EXO 1745−248 harbours a relatively cold neutron star and suggests that, for example, enhanced cooling mechanisms are operating in the stellar core or that the binary on average resides in quiescence for hundreds of years." @default.
- W1869883100 created "2016-06-24" @default.
- W1869883100 creator A5013480528 @default.
- W1869883100 creator A5087214327 @default.
- W1869883100 date "2012-03-22" @default.
- W1869883100 modified "2023-09-23" @default.
- W1869883100 title "Strong X-ray variability in the quiescent state of the neutron star low-mass X-ray binary EXO 1745−248" @default.
- W1869883100 cites W1576759433 @default.
- W1869883100 cites W1944625138 @default.
- W1869883100 cites W1980454803 @default.
- W1869883100 cites W1988699391 @default.
- W1869883100 cites W1997370179 @default.
- W1869883100 cites W2004174937 @default.
- W1869883100 cites W2004302169 @default.
- W1869883100 cites W2006962502 @default.
- W1869883100 cites W2007049136 @default.
- W1869883100 cites W2014334174 @default.
- W1869883100 cites W2024184076 @default.
- W1869883100 cites W2030420399 @default.
- W1869883100 cites W2031514394 @default.
- W1869883100 cites W2034856282 @default.
- W1869883100 cites W2037400075 @default.
- W1869883100 cites W2040155748 @default.
- W1869883100 cites W2050643633 @default.
- W1869883100 cites W2050755349 @default.
- W1869883100 cites W2054131667 @default.
- W1869883100 cites W2057496816 @default.
- W1869883100 cites W2063212296 @default.
- W1869883100 cites W2070565133 @default.
- W1869883100 cites W2079600350 @default.
- W1869883100 cites W2093441374 @default.
- W1869883100 cites W2095520023 @default.
- W1869883100 cites W2097050525 @default.
- W1869883100 cites W2098956962 @default.
- W1869883100 cites W2112109590 @default.
- W1869883100 cites W2114606221 @default.
- W1869883100 cites W2118096695 @default.
- W1869883100 cites W2118584419 @default.
- W1869883100 cites W2119294917 @default.
- W1869883100 cites W2127968784 @default.
- W1869883100 cites W2128314135 @default.
- W1869883100 cites W2142507271 @default.
- W1869883100 cites W2153428576 @default.
- W1869883100 cites W2155440327 @default.
- W1869883100 cites W2159402743 @default.
- W1869883100 cites W2162076236 @default.
- W1869883100 cites W2162200004 @default.
- W1869883100 cites W2951904469 @default.
- W1869883100 cites W2952025383 @default.
- W1869883100 cites W3099182536 @default.
- W1869883100 cites W3099188802 @default.
- W1869883100 cites W3099532253 @default.
- W1869883100 cites W3100143175 @default.
- W1869883100 cites W3100369244 @default.
- W1869883100 cites W3100485161 @default.
- W1869883100 cites W3101525261 @default.
- W1869883100 cites W3102725444 @default.
- W1869883100 cites W3104965572 @default.
- W1869883100 cites W3105373160 @default.
- W1869883100 cites W3105804236 @default.
- W1869883100 cites W3106403535 @default.
- W1869883100 cites W3122789507 @default.
- W1869883100 cites W3123347293 @default.
- W1869883100 cites W3123845005 @default.
- W1869883100 cites W4252860733 @default.
- W1869883100 doi "https://doi.org/10.1111/j.1365-2966.2012.20636.x" @default.
- W1869883100 hasPublicationYear "2012" @default.
- W1869883100 type Work @default.
- W1869883100 sameAs 1869883100 @default.
- W1869883100 citedByCount "50" @default.
- W1869883100 countsByYear W18698831002012 @default.
- W1869883100 countsByYear W18698831002013 @default.
- W1869883100 countsByYear W18698831002014 @default.
- W1869883100 countsByYear W18698831002015 @default.
- W1869883100 countsByYear W18698831002016 @default.
- W1869883100 countsByYear W18698831002017 @default.
- W1869883100 countsByYear W18698831002018 @default.
- W1869883100 countsByYear W18698831002019 @default.
- W1869883100 countsByYear W18698831002020 @default.
- W1869883100 countsByYear W18698831002021 @default.
- W1869883100 countsByYear W18698831002023 @default.
- W1869883100 crossrefType "journal-article" @default.
- W1869883100 hasAuthorship W1869883100A5013480528 @default.
- W1869883100 hasAuthorship W1869883100A5087214327 @default.
- W1869883100 hasBestOaLocation W18698831001 @default.
- W1869883100 hasConcept C113461152 @default.
- W1869883100 hasConcept C117808444 @default.
- W1869883100 hasConcept C121332964 @default.
- W1869883100 hasConcept C12287442 @default.
- W1869883100 hasConcept C1276947 @default.
- W1869883100 hasConcept C137179401 @default.
- W1869883100 hasConcept C150846664 @default.
- W1869883100 hasConcept C192887742 @default.
- W1869883100 hasConcept C44870925 @default.
- W1869883100 hasConcept C98444146 @default.
- W1869883100 hasConceptScore W1869883100C113461152 @default.
- W1869883100 hasConceptScore W1869883100C117808444 @default.
- W1869883100 hasConceptScore W1869883100C121332964 @default.