...
PSRJ0537-6910
...
and
...
PSRB0540-69
...
PI:
...
F.
...
Marshall
...
Co:
...
J.
...
Middleditch,
...
W.
...
Zhang,
...
E.
...
V.
...
Gotthelf,
...
D.
...
Q.
...
Wang,
...
D.
...
Thompson
...
*
...
Title:
...
The
...
Spindown
...
Evolution
...
of
...
Two
...
Young
...
Pulsars
...
in
...
the
...
LMC
...
*
...
Abstract
...
We
...
propose
...
to
...
continue
...
our
...
highly
...
successful
...
timing
...
campaign
...
of
...
two
...
young
...
rotationpowered
...
pulsars
...
located
...
in
...
the
...
LMC.
...
Longterm
...
monitoring
...
has
...
revealed
...
extreme
...
timing
...
glitches
...
from
...
the
...
16ms
...
pulsar
...
PSRJ0537-6910,
...
anomalous
...
activity
...
prior
...
to
...
glitches,
...
and
...
a
...
tight
...
correlation
...
between
...
the
...
glitch
...
magnitude
...
and
...
the
...
interval
...
between
...
glitches.
...
The
...
50ms
...
pulsar
...
PSRB0540-69,
...
which
...
has
...
an
...
unusually
...
low
...
and
...
varying
...
braking
...
index,
...
is
...
also
...
in
...
the
...
RXTE
...
field
...
of
...
view.
...
With
...
our
...
greatly
...
improved
...
ability
...
to
...
measure
...
the
...
times
...
of
...
glitches,
...
further
...
Xray
...
observations
...
will
...
provide
...
much
...
better
...
tests
...
of
...
the
...
predictability
...
of
...
glitching
...
activity
...
from
...
PSRJ0537-6910
...
while
...
extending
...
our
...
study
...
of
...
the
...
braking
...
index
...
and
...
timing
...
noise
...
of
...
PSRB0540-69.
...
Continued
...
RXTE
...
observations
...
are
...
necessary
...
for
...
studying
...
gammaray
...
emission
...
from
...
these
...
pulsars
...
with
...
GLAST.
...
Monitoring
...
the
...
longterm
...
spindown
...
evolution
...
of
...
both
...
pulsars
...
will
...
help
...
further
...
our
...
understanding
...
of
...
emission
...
mechanisms
...
of
...
young
...
pulsars
...
and
...
probe
...
their
...
interior
...
structure.
...