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The nearby cluster Abell 1795 is used as a testbed to examine whether hot gasin cluster galaxies is stripped by the ram pressure of the intracluster medium(ICM). The expected X-ray emission in and around Abell 1795 galaxies is likelydominated by the ICM, low-mass X-ray binaries, active galactic nuclei, and hotgas halos. In order to constrain these components, we use archival ChandraX-ray Observatory and Sloan Digital Sky Survey (SDSS) observations of Abell1795 and identify 58 massive (M_star>10^10 M_sun) spectroscopic cluster memberswithin 5 arcmin of the Chandra optical axis. X-ray images at 0.5-1.5 keV and4-8 keV were created for each cluster member and then stacked into twoclustercentric radius bins: inner (0.25<R/R_500<1) and outer (1<R/R_500<2.5).Surface brightness profiles of inner and outer cluster members are fit usingMarkov chain Monte Carlo sampling in order to generate model parameters andmeasure the 0.5-1.5 keV luminosities of each model component. Leveragingeffective total Chandra exposure times of 3.4 and 1.7 Msec for inner and outercluster members, respectively, we report the detection of hot gas halos, in astatistical sense, around outer cluster members. Outer members have 0.5-1.5 keVhot halo luminosities (L_X = 8.1(-3.5/+5)x10^39 erg/s) that are six timeslarger than the upper limit for inner cluster members (L_X < 1.3x10^39 erg/s).This result suggests that the ICM is removing hot gas from the halos of Abell1795 members as they fall into the cluster.

Stripping of the Hot Gas Halos in Member Galaxies of Abell 1795