BONANNO, Alfio MaurizioAlfio MaurizioBONANNOUrpin, V.V.Urpin2020-04-212020-04-2120150004-6361http://hdl.handle.net/20.500.12386/24162Context. The recent discovery of long-period, low magnetic field pulsars in low-mass X-ray binaries (LMXBs) represents a challenge for the standard evolutionary scenario. These pulsars have a magnetic field strength comparable to that of millisecond pulsars (~10<SUP>8</SUP>-10<SUP>9</SUP> G), but their period is at least an order of magnitude longer. <BR /> Aims: We discuss the origin of this new class of pulsars within the standard picture of LMXBs formation and apply our results to the case of IGR J17480-2446. <BR /> Methods: The magnetothermal evolution of the binary system is studied numerically by taking into account the effect of different accretion rates during the Roche-lobe overflow in the framework of the minimal cooling scenario. <BR /> Results: We show that, in addition to standard millisecond pulsars, long-period low magnetic field pulsars should also be expected as a possible outcome of the binary evolution, depending on the strength of the accretion rate during the Roche-lobe overflow. In particular, we argue that IGR J17480-2446 belongs to this new class of objects.STAMPAenArticle10.1051/0004-6361/2014245242-s2.0-84921821427000349467000063https://www.aanda.org/articles/aa/abs/2015/02/aa24524-14/aa24524-14.html2015A&A...574A..63BFIS/05 - ASTRONOMIA E ASTROFISICAScienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation