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We explore the cosmic evolution of the bar length, strength, and lightdeficit around the bar for 379 barred galaxies at 0.2 < z $\leq$ 0.835 usingF814W images from the COSMOS survey. Our sample covers galaxies with stellarmass 10.0 $\leq$ log(M*/Msun) $\leq$ 11.4 and various Hubble types. The barlength is strongly related to the galaxy mass, the disk scale length (h), R50,and R90, where the last two are the radii containing 50 and 90% of totalstellar mass, respectively. Bar length remains almost constant, suggestinglittle or no evolution in bar length over the last 7 Gyrs. The normalized barlengths (Rbar/h, Rbar/R50, and Rbar/R90) do not show any clear cosmicevolution. Also, the bar strength (A2 and Qb) and the light deficit around thebar reveal little or no cosmic evolution. The constancy of the normalized barlengths over cosmic time implies that the evolution of bars and of disks isstrongly linked over all times. We discuss our results in the framework ofpredictions from numerical simulations. We conclude there is no strongdisagreement between our results and up-to-date simulations.

Cosmic Evolution of Barred Galaxies up to z ~ 0.84