We study the properties of hot gaseous halos in 10 nearby ultraluminous IRAS galaxies observed with the ACIS instrument on board Chandra .
For all sample galaxies , diffuse soft X-ray emissions are found within \sim 10 kpc of the central region ; their spectra are well fitted by a MEKAL model plus emission lines from \alpha -elements and other ions .
The temperature of the hot gas is about 0.7 keV and metallicity is about 1 Z _ { \odot } .
Outside the central region , extended hot gaseous halos are found for nine out of the ten ULIRGs .
Most spectra of these extended halos can be fitted with a MEKAL model with a temperature of about 0.6 keV and a low metallicity ( Z \sim 0.1 Z _ { \odot } ) .
We discuss the implications of our results on the origin of X-ray halos in elliptical galaxies and the feedback processes associated with starbursts .