Rights statement: This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version Ana Paulino-Afonso, David Sobral, Fernando Buitrago, José Afonso; The structural and size evolution of star-forming galaxies over the last 11 Gyr. Mon Not R Astron Soc 2017; 465 (3): 2717-2733. doi: 10.1093/mnras/stw2933 is available online at: https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stw2933
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - The structural and size evolution of star-forming galaxies over the last 11 Gyrs
AU - Paulino-Afonso, Ana
AU - Sobral, David
AU - Buitrago, Fernando
AU - Afonso, Jose
N1 - This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version Ana Paulino-Afonso, David Sobral, Fernando Buitrago, José Afonso; The structural and size evolution of star-forming galaxies over the last 11 Gyr. Mon Not R Astron Soc 2017; 465 (3): 2717-2733. doi: 10.1093/mnras/stw2933 is available online at: https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stw2933
PY - 2017/3
Y1 - 2017/3
N2 - We present new results on the evolution of rest-frame blue/UV sizes and Sersic indices of H$\alpha$-selected star-forming galaxies over the last 11 Gyrs. We investigate how the perceived evolution can be affected by a range of biases and systematics such as cosmological dimming and resolution effects. We use GALFIT and an artificial redshifting technique, which includes the luminosity evolution of H$\alpha$-selected galaxies, to quantify the change on the measured structural parameters with redshift. We find typical sizes of 2 to 3 kpc and Sersic indices of n~1.2, close to pure exponential disks all the way from z=2.23 to z=0.4. At z=0 we find typical sizes of 4-5 kpc. Our results show that, when using GALFIT, cosmological dimming has a negligible impact on the derived effective radius for galaxies with n
AB - We present new results on the evolution of rest-frame blue/UV sizes and Sersic indices of H$\alpha$-selected star-forming galaxies over the last 11 Gyrs. We investigate how the perceived evolution can be affected by a range of biases and systematics such as cosmological dimming and resolution effects. We use GALFIT and an artificial redshifting technique, which includes the luminosity evolution of H$\alpha$-selected galaxies, to quantify the change on the measured structural parameters with redshift. We find typical sizes of 2 to 3 kpc and Sersic indices of n~1.2, close to pure exponential disks all the way from z=2.23 to z=0.4. At z=0 we find typical sizes of 4-5 kpc. Our results show that, when using GALFIT, cosmological dimming has a negligible impact on the derived effective radius for galaxies with n
KW - astro-ph.GA
KW - astro-ph.CO
U2 - 10.1093/mnras/stw2933
DO - 10.1093/mnras/stw2933
M3 - Journal article
VL - 465
SP - 2717
EP - 2733
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
SN - 0035-8711
IS - 3
ER -