%0 Generic %1 fathi2012scalelengths %A Fathi, Kambiz %A Gatchell, Michael %A Hatziminaoglou, Evanthia %A Epinat, Benoit %D 2012 %K disc redshift scalelengths %T Disc scalelengths out to redshift 5.8 %U http://arxiv.org/abs/1204.2263 %X We compute the exponential disc scalelength for 686 disc galaxies with spectroscopic redshifts out to redshift 5.8 based on Hubble Space Telescope archival data. We compare the results with our previous measurements based on 30000 nearby galaxies from the Sloan Digital Sky Survey. Our results confirm the presence of a dominating exponential component in galaxies out to this redshift. At the highest redshifts, the disc scalelength for the brightest galaxies with absolute magnitude between -24 and -22 is up to a factor 8 smaller compared to that in the local Universe. This observed scalelength decrease is significantly greater than the value predicted by a cosmological picture in which baryonic disc scalelength scales with the virial radius of the dark matter halo.

@misc{fathi2012scalelengths, abstract = {We compute the exponential disc scalelength for 686 disc galaxies with spectroscopic redshifts out to redshift 5.8 based on Hubble Space Telescope archival data. We compare the results with our previous measurements based on 30000 nearby galaxies from the Sloan Digital Sky Survey. Our results confirm the presence of a dominating exponential component in galaxies out to this redshift. At the highest redshifts, the disc scalelength for the brightest galaxies with absolute magnitude between -24 and -22 is up to a factor 8 smaller compared to that in the local Universe. This observed scalelength decrease is significantly greater than the value predicted by a cosmological picture in which baryonic disc scalelength scales with the virial radius of the dark matter halo.}, added-at = {2012-04-12T18:17:27.000+0200}, author = {Fathi, Kambiz and Gatchell, Michael and Hatziminaoglou, Evanthia and Epinat, Benoit}, biburl = {https://www.bibsonomy.org/bibtex/2129b54c3b90a310c366166fc6c8e6329/miki}, description = {[1204.2263] Disc scalelengths out to redshift 5.8}, interhash = {6bc261d4a1ec325f9dcbad17302b59a4}, intrahash = {129b54c3b90a310c366166fc6c8e6329}, keywords = {disc redshift scalelengths}, note = {cite arxiv:1204.2263Comment: 5 pages, 4 figures; accepted for publication in MNRAS}, timestamp = {2012-04-12T18:17:27.000+0200}, title = {Disc scalelengths out to redshift 5.8}, url = {http://arxiv.org/abs/1204.2263}, year = 2012 }