@Article{AraújoCoelCost:2016:GrWaEm,
author = "Ara{\'u}jo, Jos{\'e} Carlos Neves de and Coelho, Jaziel Goulart
and Costa, C{\'e}sar Augusto",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "Gravitational wave emission by the high braking index pulsar PSR
J1640-4631",
journal = "Journal of Cosmology and Astroparticle Physics",
year = "2016",
volume = "7",
pages = "023",
month = "July",
keywords = "gravitational waves / sources, neutron stars.",
abstract = "Recently, a braking index for the pulsar PSR J1640-4631 has been
measured. With a braking index of n = 3.15 +/- 0.03, this pulsar
has the highest braking index ever measured. As it is well known,
a pure magnetic dipole brake yields n = 3, whereas a pure
gravitational wave (GW) brake yields n = 5. Therefore, each of
these mechanisms alone can not account for the braking index found
for PSR J1640-4631. Here we consider in detail that such a braking
index could be accounted for if the spindown model combines
magnetic dipole and GW brakes. Then, we briefly discuss the
detectability of this pulsar by aLIGO and the planned Einstein
Telescope. In particular, we show that the amplitude of the GW
that comes from our model is around a factor four lower than the
amplitude modeled exclusively by GW energy loss. Another
interesting outcome of our modeling is that it is possible to
obtain the ellipticity from the braking index and other pulsar
parameters.",
doi = "10.1088/1475-7516/2016/07/023",
url = "http://dx.doi.org/10.1088/1475-7516/2016/07/023",
issn = "1475-7516",
language = "en",
targetfile = "araujo_gravitational.pdf",
urlaccessdate = "05 dez. 2020"
}