We present XMM-Newton EPIC observations of warm absorbers in the quasars PG 1114+445 and PG 1309+355 , both of which exhibit evidence for absorption by warm material in the line-of-sight .
We find the absorption in PG 1114+445 to be in two phases , a ‘ hot ’ phase with a log ionisation parameter \xi of 2.57 , and a ‘ cooler ’ phase with log \xi of 0.83 ; an unresolved transition array ( UTA ) of M-shell iron is observed in the cooler phase .
The absorption in this quasar is similar to that observed in the Seyfert 1 NGC 3783 .
The absorption in PG 1309+355 consists of a single phase , with log \xi of 1.87 .
The absorbing gas lies at distances of 10 ^ { 18 } - 10 ^ { 22 } cm from the continuum radiation sources in these AGN , which suggests that it could originate in a wind emanating from a molecular torus .
We derive distances assuming that these X-ray warm absorbers have the same velocity as the UV warm absorbers observed in these quasars .
The distances to the warm absorbers from the central continuum source scale approximately with the square root of the AGN ionising luminosity , a result consistent with the warm absorber originating as a torus wind .
The kinetic luminosities of these outflowing absorbers represent insignificant fractions ( < 10 ^ { -3 } ) of the energy budgets of the AGN .