Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30507
DC Field | Value | Language |
---|---|---|
dc.contributor.author | RODRIGUEZ CASTILLO, Guillermo Andres | en_US |
dc.contributor.author | ISRAEL, Gian Luca | en_US |
dc.contributor.author | ESPOSITO, PAOLO | en_US |
dc.contributor.author | PAPITTO, ALESSANDRO | en_US |
dc.contributor.author | STELLA, Luigi | en_US |
dc.contributor.author | TIENGO, ANDREA | en_US |
dc.contributor.author | DE LUCA, Andrea | en_US |
dc.contributor.author | MARELLI, MARTINO | en_US |
dc.date.accessioned | 2021-02-22T12:05:03Z | - |
dc.date.available | 2021-02-22T12:05:03Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 2041-8205 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30507 | - |
dc.description.abstract | We report the discovery with XMM-Newton of 3 s X-ray pulsations from 3XMM J004232.1+411314, a dipping source that dominates the hard X-ray emission of M31. This finding unambiguously assesses the neutron star (NS) nature of the compact object. We also measured an orbital period of 4.15 hr and a projected semi-axis at a_X sin i = 0.6 lt-s, which implies a low-mass companion of about 0.2-0.3 M_☉ assuming an NS of 1.5 M_☉ and an orbital inclination i = 60°-80°. The barycentric orbit-corrected pulse period decreased by ∼28 ms in about 16 year, corresponding to an average spin-up rate of \dot{P}∼ -6× {10}^-11 s s^-1 pulse period variations, probably caused by X-ray luminosity changes, were observed on shorter timescales. We identify two possible extreme scenarios for the source: a mildly magnetic NS with B _p ≃ few × 10^10 G if the pulsar is far from its equilibrium period P_eq and the disk is truncated at the value of the Alfvén radius corresponding to the observed luminosity, and a relatively young, highly magnetic NS with B_eq ≃ 2 × 10^13 G if spinning close to P_eq and the disk is truncated close to the co-rotation surface. | en_US |
dc.language.iso | eng | en_US |
dc.title | Discovery of a 3 s Spinning Neutron Star in a 4.15 hr Orbit in the Brightest Hard X-Ray Source in M31 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/2041-8213/aacf40 | en_US |
dc.identifier.scopus | 2-s2.0-85049992871 | en_US |
dc.identifier.isi | 000438612300006 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/2041-8213/aacf40 | en_US |
dc.identifier.url | https://arxiv.org/abs/1804.10858 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 861 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | L26 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 8 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL LETTERS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018ApJ...861L..26R | en_US |
dc.relation.fund | H2020 | en_US |
dc.relation.project | TMSP (Mass accretion and ejection in transitional millisecond pulsars) | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_10 High energy and particle astronomy – X-rays, cosmic rays, gamma rays, neutrinos | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | IASF Palermo | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.orcid | 0000-0003-3952-7291 | - |
crisitem.author.orcid | 0000-0001-5480-6438 | - |
crisitem.author.orcid | 0000-0001-6289-7413 | - |
crisitem.author.orcid | 0000-0002-0018-1687 | - |
crisitem.author.orcid | 0000-0001-6739-687X | - |
crisitem.author.orcid | 0000-0002-8017-0338 | - |
crisitem.project.grantno | 660657 | - |
crisitem.journal.journalissn | 2041-8205 | - |
crisitem.journal.ance | E196528 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Rodríguez_Castillo_2018_ApJL_861_L26.pdf | Pdf editoriale | 857.54 kB | Adobe PDF | View/Open |
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