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3D-HST+CANDELS : the evolution of the galaxy size-mass distribution since z=3

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Abstract
Spectroscopic + photometric redshifts, stellar mass estimates, and rest-frame colors from the 3D-HST survey are combined with structural parameter measurements from CANDELS imaging to determine the galaxy size-mass distribution over the redshift range 0 < z < 3. Separating early-and late-type galaxies on the basis of star-formation activity, we confirm that early-type galaxies are on average smaller than late-type galaxies at all redshifts, and we find a significantly different rate of average size evolution at fixed galaxy mass, with fast evolution for the early-type population, R-eff proportional to (1 + z)(-1.48), and moderate evolution for the late-type population, R-eff proportional to (1 + z)(-0.75). The large sample size and dynamic range in both galaxy mass and redshift, in combination with the high fidelity of our measurements due to the extensive use of spectroscopic data, not only fortify previous results but also enable us to probe beyond simple average galaxy size measurements. At all redshifts the slope of the size-mass relation is shallow, R-eff proportional to M-*(0.22) , for late-type galaxies with stellar mass >3 x 10(9) M-circle dot, and steep, R-eff proportional to M-*(0.75), for early-type galaxies with stellar mass >2 x 10(10) M-circle dot. The intrinsic scatter is less than or similar to 0.2 dex for all galaxy types and redshifts. For late-type galaxies, the logarithmic size distribution is not symmetric but is skewed toward small sizes: at all redshifts and masses, a tail of small late-type galaxies exists that overlaps in size with the early-type galaxy population. The number density of massive (similar to 10(11)M(circle dot)), compact (R-eff < 2 kpc) early-type galaxies increases from z = 3 to z 1.5-2 and then strongly decreases at later cosmic times.
Keywords
SIMILAR-TO 2, HUBBLE-SPACE-TELESCOPE, COMPACT QUIESCENT GALAXIES, ULTRA-DEEP-FIELD, HIGH-REDSHIFT GALAXIES, STAR-FORMING GALAXIES, GREATER-THAN 1, VELOCITY-DISPERSION EVOLUTION, PASSIVELY EVOLVING, GALAXIES, EXTRAGALACTIC LEGACY SURVEY, galaxies : evolution, galaxies : fundamental parameters, galaxies : high-redshift, galaxies : structure

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MLA
van der Wel, Arjen et al. “3D-HST+CANDELS : the Evolution of the Galaxy Size-mass Distribution Since Z=3.” ASTROPHYSICAL JOURNAL 788.1 (2014): n. pag. Print.
APA
van der Wel, A., Franx, M., van Dokkum, P., Skelton, R., Momcheva, I., Whitaker, K., Brammer, G., et al. (2014). 3D-HST+CANDELS : the evolution of the galaxy size-mass distribution since z=3. ASTROPHYSICAL JOURNAL, 788(1).
Chicago author-date
van der Wel, Arjen, M Franx, PG van Dokkum, RE Skelton, IG Momcheva, KE Whitaker, GB Brammer, et al. 2014. “3D-HST+CANDELS : the Evolution of the Galaxy Size-mass Distribution Since Z=3.” Astrophysical Journal 788 (1).
Chicago author-date (all authors)
van der Wel, Arjen, M Franx, PG van Dokkum, RE Skelton, IG Momcheva, KE Whitaker, GB Brammer, EF Bell, H-W Rix, S Wuyts, HC Ferguson, BP Holden, G Barro, AM Koekemoer, Yu-Yen Chang, EJ McGrath, B Haeussler, A Dekel, P Behroozi, M Fumagalli, J Leja, BF Lundgren, MV Maseda, EJ Nelson, DA Wake, SG Patel, I Labbe, SM Faber, NA Grogin, and DD Kocevski. 2014. “3D-HST+CANDELS : the Evolution of the Galaxy Size-mass Distribution Since Z=3.” Astrophysical Journal 788 (1).
Vancouver
1.
van der Wel A, Franx M, van Dokkum P, Skelton R, Momcheva I, Whitaker K, et al. 3D-HST+CANDELS : the evolution of the galaxy size-mass distribution since z=3. ASTROPHYSICAL JOURNAL. 2014;788(1).
IEEE
[1]
A. van der Wel et al., “3D-HST+CANDELS : the evolution of the galaxy size-mass distribution since z=3,” ASTROPHYSICAL JOURNAL, vol. 788, no. 1, 2014.
@article{8568276,
  abstract     = {Spectroscopic + photometric redshifts, stellar mass estimates, and rest-frame colors from the 3D-HST survey are combined with structural parameter measurements from CANDELS imaging to determine the galaxy size-mass distribution over the redshift range 0 < z < 3. Separating early-and late-type galaxies on the basis of star-formation activity, we confirm that early-type galaxies are on average smaller than late-type galaxies at all redshifts, and we find a significantly different rate of average size evolution at fixed galaxy mass, with fast evolution for the early-type population, R-eff proportional to (1 + z)(-1.48), and moderate evolution for the late-type population, R-eff proportional to (1 + z)(-0.75). The large sample size and dynamic range in both galaxy mass and redshift, in combination with the high fidelity of our measurements due to the extensive use of spectroscopic data, not only fortify previous results but also enable us to probe beyond simple average galaxy size measurements. At all redshifts the slope of the size-mass relation is shallow, R-eff proportional to M-*(0.22) , for late-type galaxies with stellar mass >3 x 10(9) M-circle dot, and steep, R-eff proportional to M-*(0.75), for early-type galaxies with stellar mass >2 x 10(10) M-circle dot. The intrinsic scatter is less than or similar to 0.2 dex for all galaxy types and redshifts. For late-type galaxies, the logarithmic size distribution is not symmetric but is skewed toward small sizes: at all redshifts and masses, a tail of small late-type galaxies exists that overlaps in size with the early-type galaxy population. The number density of massive (similar to 10(11)M(circle dot)), compact (R-eff < 2 kpc) early-type galaxies increases from z = 3 to z 1.5-2 and then strongly decreases at later cosmic times.},
  articleno    = {28},
  author       = {van der Wel, Arjen and Franx, M and van Dokkum, PG and Skelton, RE and Momcheva, IG and Whitaker, KE and Brammer, GB and Bell, EF and Rix, H-W and Wuyts, S and Ferguson, HC and Holden, BP and Barro, G and Koekemoer, AM and Chang, Yu-Yen and McGrath, EJ and Haeussler, B and Dekel, A and Behroozi, P and Fumagalli, M and Leja, J and Lundgren, BF and Maseda, MV and Nelson, EJ and Wake, DA and Patel, SG and Labbe, I and Faber, SM and Grogin, NA and Kocevski, DD},
  issn         = {0004-637X},
  journal      = {ASTROPHYSICAL JOURNAL},
  keywords     = {SIMILAR-TO 2,HUBBLE-SPACE-TELESCOPE,COMPACT QUIESCENT GALAXIES,ULTRA-DEEP-FIELD,HIGH-REDSHIFT GALAXIES,STAR-FORMING GALAXIES,GREATER-THAN 1,VELOCITY-DISPERSION EVOLUTION,PASSIVELY EVOLVING,GALAXIES,EXTRAGALACTIC LEGACY SURVEY,galaxies : evolution,galaxies : fundamental parameters,galaxies : high-redshift,galaxies : structure},
  language     = {eng},
  number       = {1},
  pages        = {19},
  title        = {3D-HST+CANDELS : the evolution of the galaxy size-mass distribution since z=3},
  url          = {http://dx.doi.org/10.1088/0004-637X/788/1/28},
  volume       = {788},
  year         = {2014},
}

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