Gravitational approach to tachyon matter

We found a gravity solution of a $p+1\mathrm{}$ dimensional extended object with $\mathrm{SO}\left(p\right)\mathrm{}\times SO\left(9\mathrm{}-p\right)$ symmetry which has zero pressure and zero dilaton charge. We expect that this object is a residual tachyon dust after tachyon condensation of the brane and antibrane system recently discussed by Sen. We also discuss the Hawking temperature and some properties of this object.