Deep searches for decameter wavelength pulsed emission from radio-quiet
  gamma-ray pulsars
  We report the results of (a) extensive follow-up observations of the
gamma-ray pulsar J1732-3131 that has been recently detected at decameter
wavelengths, and (b) deep searches for counterparts of 9 other radio-quiet
gamma-ray pulsars at 34 MHz, using the Gauribidanur radio telescope. No
periodic signal from J1732-3131 could be detected above a detection threshold
of $8\sigma$, even with an effective integration time of more than 40 hours.
However, the average profile obtained by combining data from several epochs, at
a dispersion measure of 15.44 pc/cc, is found to be consistent with that from
the earlier detection of this pulsar at a confidence level of 99.2 %. We
present this consistency between the two profiles as an evidence that
J1732-3131 is a faint radio pulsar with an average flux density of 200--400 mJy
at 34 MHz. Detection sensitivity of our deep searches, despite the extremely
bright sky background at such low frequencies, is generally comparable to that
of higher frequency searches for these pulsars, when scaled using reasonable
assumptions about the underlying pulsar spectrum. We provide details of our
deep searches, and put stringent upper limits on the decameter wavelength flux
densities of several radio-quiet gamma-ray pulsars.
