| Title | Extended Sunyaev-Zeldovich Map of the Most Luminous X-Ray Cluster, RX J1347-1145 |
| Authors | Pointecouteau, E.; Giard, M.; Benoit, A.; Désert, F. X.; Bernard, J. P.; Coron, N.; Lamarre, J. M. |
| Bibcode | 2001ApJ...552...42P Search ADS ↗ |
| Abstract | We present a high-resolution (22" FWHM) extended map at 2.1 mm of the Sunyaev-Zeldovich effect toward the most luminous X-ray cluster, RX J1347-1145. These observations have been performed with the Diabolo photometer working at the focus of the 30 m IRAM radiotelescope. We have derived a projected gas mass of (1.1+/-0.1)×1014 h-5/250 Msolar within an angular radius of θ=74'' (i.e., projected radius of 0.6 Mpc, H0=50 km s-1 Mpc-1, Ωm=0.3, ΩΛ=0.7). This result matches very well the expected gas mass from the cluster models of X-ray data. With an unprecedented sensitivity level, our measurement does not show significant departure from a spherical distribution. The data analysis also allows us to characterize the 2.1 mm flux of a well-known radio source lying in the center of the cluster, FRS(2.1 mm)=5.7+/-1.6 mJy. |
| Objects | 1 Objects Search NED ↙ |
