The Rest-frame Optical (900 nm) Galaxy Luminosity Function atz\${\textbackslash}sim\$ 4–7: Abundance Matching Points to Limited Evolution in theMSTAR/MHALORatio atz\${\textbackslash}geq\$ 4. Stefanon, M., Bouwens, R. J., Labbé, I., Muzzin, A., Marchesini, D., Oesch, P., & Gonzalez, V. The Astrophysical Journal, 843(1):36, June, 2017.
The Rest-frame Optical (900 nm) Galaxy Luminosity Function atz\${\textbackslash}sim\$ 4–7: Abundance Matching Points to Limited Evolution in theMSTAR/MHALORatio atz\${\textbackslash}geq\$ 4 [link]Paper  doi  abstract   bibtex   
We present the first determination of the galaxy luminosity function (LF) at z ∼ 4, 5, 6, and 7, in the rest-frame optical at (z′ band). The rest-frame optical light traces the content in low-mass evolved stars (∼stellar mass—M *), minimizing potential measurement biases for M *. Moreover, it is less affected by nebular line emission contamination and dust attenuation, is independent of stellar population models, and can be probed up to z ∼ 8 through Spitzer/IRAC. Our analysis leverages the unique full-depth Spitzer/IRAC 3.6–8.0 μm data over the CANDELS/GOODS-N, CANDELS/GOODS-S, and COSMOS/UltraVISTA fields. We find that, at absolute magnitudes where is fainter than mag, linearly correlates with . At brighter , presents a turnover, suggesting that the stellar mass-to-light ratio could be characterized by a very broad range of values at high stellar masses. Median-stacking analyses recover an roughly independent on for mag, but exponentially increasing at brighter magnitudes. We find that the evolution of the LF marginally prefers a pure luminosity evolution over a pure density evolution, with the characteristic luminosity decreasing by a factor of between z ∼ 4 and z ∼ 7. Direct application of the recovered generates stellar mass functions consistent with average measurements from the literature. Measurements of the stellar-to-halo mass ratio at fixed cumulative number density show that it is roughly constant with redshift for . This is also supported by the fact that the evolution of the LF at can be accounted for by a rigid displacement in luminosity, corresponding to the evolution of the halo mass from abundance matching.
@article{stefanon_rest-frame_2017,
	title = {The {Rest}-frame {Optical} (900 nm) {Galaxy} {Luminosity} {Function} atz\${\textbackslash}sim\$ 4–7: {Abundance} {Matching} {Points} to {Limited} {Evolution} in {theMSTAR}/{MHALORatio} atz\${\textbackslash}geq\$ 4},
	volume = {843},
	issn = {0004-637X},
	shorttitle = {The {Rest}-frame {Optical} (900 nm) {Galaxy} {Luminosity} {Function} atz\${\textbackslash}sim\$ 4–7},
	url = {https://doi.org/10.3847%2F1538-4357%2Faa72d8},
	doi = {10.3847/1538-4357/aa72d8},
	abstract = {We present the first determination of the galaxy luminosity function (LF) at z ∼ 4, 5, 6, and 7, in the rest-frame optical at (z′ band). The rest-frame optical light traces the content in low-mass evolved stars (∼stellar mass—M *), minimizing potential measurement biases for M *. Moreover, it is less affected by nebular line emission contamination and dust attenuation, is independent of stellar population models, and can be probed up to z ∼ 8 through Spitzer/IRAC. Our analysis leverages the unique full-depth Spitzer/IRAC 3.6–8.0 μm data over the CANDELS/GOODS-N, CANDELS/GOODS-S, and COSMOS/UltraVISTA fields. We find that, at absolute magnitudes where is fainter than mag, linearly correlates with . At brighter , presents a turnover, suggesting that the stellar mass-to-light ratio could be characterized by a very broad range of values at high stellar masses. Median-stacking analyses recover an roughly independent on for mag, but exponentially increasing at brighter magnitudes. We find that the evolution of the LF marginally prefers a pure luminosity evolution over a pure density evolution, with the characteristic luminosity decreasing by a factor of between z ∼ 4 and z ∼ 7. Direct application of the recovered generates stellar mass functions consistent with average measurements from the literature. Measurements of the stellar-to-halo mass ratio at fixed cumulative number density show that it is roughly constant with redshift for . This is also supported by the fact that the evolution of the LF at can be accounted for by a rigid displacement in luminosity, corresponding to the evolution of the halo mass from abundance matching.},
	language = {en},
	number = {1},
	urldate = {2020-01-07},
	journal = {The Astrophysical Journal},
	author = {Stefanon, Mauro and Bouwens, Rychard J. and Labbé, Ivo and Muzzin, Adam and Marchesini, Danilo and Oesch, Pascal and Gonzalez, Valentino},
	month = jun,
	year = {2017},
	pages = {36},
}

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