Recently released Planck data implies a smaller Hubble constant H _ { 0 } than that from Hubble Space Telescope project ( HST ) and a larger percentage of the matter components \Omega _ { m } compared to Supernova Legacy Survey ( SNLS ) in \Lambda CDM model .
In this paper we found that even though the tension on H _ { 0 } between Planck and HST can be relaxed if the dark radiation is introduced ( \Delta N _ { eff } = 0.536 _ { -0.224 } ^ { +0.229 } at 68 \% CL from the datasets of Planck+WMAP Polarization ( WP ) +baryon acoustic oscillation ( BAO ) +the combination of supernova Union2.1 compilation of 580 SNe ( Union2.1 ) +HST ) , \Omega _ { m } from Planck is still not nicely compatible with that from SNLS .
The tensions between Planck and other astrophysical datasets can be significantly relaxed in w CDM model , and the combination of these datasets prefers a phantom-like dark energy at more than 95 \% CL : w = -1.15 \pm 0.07 and w = -1.16 \pm 0.06 at 68 \% CL from Planck+WP+BAO+Union2.1+HST and Planck+WP+BAO+SNLS+HST respectively .
From the statistical point of view , there is no evidence for a time-evolving equation of state ( \Delta \chi ^ { 2 } = -0.3 compared to a constant equation of state for the combination of Planck+WP+BAO+SNLS+HST ) .