Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 양종만 | - |
dc.date.accessioned | 2016-08-27T02:08:21Z | - |
dc.date.available | 2016-08-27T02:08:21Z | - |
dc.date.issued | 1999 | - |
dc.identifier.issn | 0004-637X | - |
dc.identifier.other | OAK-220 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/215300 | - |
dc.description.abstract | The existence of hot, two-temperature accretion flows is essential to the recent discussions of the low-luminosity, hard X-ray emission from accreting neutron stars and black holes in Galactic binaries and massive black holes in low-luminosity galactic nuclei. In these flows, protons are essentially virialized and relativistic energies for nonthermal protons are likely. Observational confirmation of the energetic protons' presence could further support the two-temperature accretion flow models. We point out that synchrotron emission from nonthermal relativistic protons could provide an observational signature in strongly magnetized neutron star systems. The self-absorbed synchrotron emission from an accreting neutron star with the magnetic moment similar to 10(30) G cm(3) is expected to exhibit a spectrum nu I-nu similar to nu(2) with the luminosity about a few times 10(33) (L-x/10(36) ergs s(-1))(0.4) ergs s(-1) at nu similar to 10(15) Hz, where L-x is the X-ray luminosity from the neutron star surface. The detection of the expected synchrotron signature in optical and UV bands during the low-luminosity state of the pulsar systems such as 4U 1626-67 and GX 1+4 could prove the existence of the hot, two-temperature accretion flows during their spin-down episodes. The detected optical emission in 4U 1626-67 has a spectral shape and luminosity level very close to our predictions. | - |
dc.language | English | - |
dc.publisher | UNIV CHICAGO PRESS | - |
dc.subject | accretion, accretion disks | - |
dc.subject | pulsars : general | - |
dc.subject | radiation mechanisms : nonthermal | - |
dc.subject | stars : magnetic fields | - |
dc.subject | X-rays : general | - |
dc.title | Signatures of energetic protons in hot accretion flows: Synchrotron cooling of protons in strongly magnetized pulsars | - |
dc.type | Article | - |
dc.relation.issue | 1 | - |
dc.relation.volume | 516 | - |
dc.relation.index | SCI | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.startpage | L21 | - |
dc.relation.lastpage | L24 | - |
dc.relation.journaltitle | ASTROPHYSICAL JOURNAL | - |
dc.identifier.doi | 10.1086/311985 | - |
dc.identifier.wosid | WOS:000080660200006 | - |
dc.identifier.scopusid | 2-s2.0-0040116876 | - |
dc.author.google | Yang, JM | - |
dc.author.google | Yi, IS | - |
dc.contributor.scopusid | 양종만(15039320200;8833888100) | - |
dc.date.modifydate | 20230118100842 | - |