Galaxy And Mass Assembly (GAMA): the galaxy stellar mass function at z 0.06

I. K. Baldry; S. P. Driver; J. Loveday; E. N. Taylor; L. S. Kelvin; J. Liske; P. Norberg; A. S. G. Robotham; S. Brough; A. M. Hopkins; S. P. Bamford; J. A. Peacock; J. Bland-Hawthorn; C. J. Conselice; S. M. Croom; D. H. Jones; H. R. Parkinson; C. C. Popescu; M. Prescott; R. G. Sharp; R. J. Tuffs

doi:10.1111/j.1365-2966.2012.20340.x

Galaxy And Mass Assembly (GAMA): the galaxy stellar mass function at z 0.06

I. K. Baldry, S. P. Driver, J. Loveday, E. N. Taylor, L. S. Kelvin, J. Liske, P. Norberg, A. S. G. Robotham, S. Brough, A. M. Hopkins, S. P. Bamford, J. A. Peacock, J. Bland-Hawthorn, C. J. Conselice, S. M. Croom, D. H. Jones, H. R. Parkinson, C. C. Popescu, M. Prescott, R. G. SharpR. J. Tuffs

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We determine the low-redshift field galaxy stellar mass function (GSMF) using an area of 143 deg(2) from the first three years of the Galaxy And Mass Assembly (GAMA) survey. The magnitude limits of this redshift survey are r < 19.4 mag over two-thirds and 19.8 mag over one-third of the area. The GSMF is determined from a sample of 5210 galaxies using a density-corrected maximum volume method. This efficiently overcomes the issue of fluctuations in the number density versus redshift. With H-0 = 70 km s (1) Mpc (1), the GSMF is well described between 10(8) and 10(11.5)M(circle dot) using a double Schechter function with M* = 10(10.66)M(circle dot), phi*(1) = 3.96 x 10(-3) Mpc(-3), alpha(1) =-0.35, phi*(2) = 0.79 x 10(-3) Mpc(-3) and alpha(2) = -1.47. This result is more robust to uncertainties in the flow-model corrected redshifts than from the shallower Sloan Digital Sky Survey main sample (r < 17.8mag). The upturn in the GSMF is also seen directly in the i-band and K-band galaxy luminosity functions. Accurately measuring the GSMF below 10(8)M(circle dot) is possible within the GAMA survey volume but as expected requires deeper imaging data to address the contribution from low surface-brightness galaxies.

Original language	English
Pages (from-to)	621-634
Number of pages	14
Journal	Monthly Notices of the Royal Astronomical Society
Volume	421
Issue number	1
DOIs	https://doi.org/10.1111/j.1365-2966.2012.20340.x
Publication status	Published - 21 Mar 2012

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Baldry, I. K., Driver, S. P., Loveday, J., Taylor, E. N., Kelvin, L. S., Liske, J., Norberg, P., Robotham, A. S. G., Brough, S., Hopkins, A. M., Bamford, S. P., Peacock, J. A., Bland-Hawthorn, J., Conselice, C. J., Croom, S. M., Jones, D. H., Parkinson, H. R., Popescu, C. C., Prescott, M., ... Tuffs, R. J. (2012). Galaxy And Mass Assembly (GAMA): the galaxy stellar mass function at z 0.06. Monthly Notices of the Royal Astronomical Society, 421(1), 621-634. https://doi.org/10.1111/j.1365-2966.2012.20340.x

@article{888337d94b314a0f87a68d3653b0a0b1,

title = "Galaxy And Mass Assembly (GAMA): the galaxy stellar mass function at z 0.06",

abstract = "We determine the low-redshift field galaxy stellar mass function (GSMF) using an area of 143 deg(2) from the first three years of the Galaxy And Mass Assembly (GAMA) survey. The magnitude limits of this redshift survey are r < 19.4 mag over two-thirds and 19.8 mag over one-third of the area. The GSMF is determined from a sample of 5210 galaxies using a density-corrected maximum volume method. This efficiently overcomes the issue of fluctuations in the number density versus redshift. With H-0 = 70 km s (1) Mpc (1), the GSMF is well described between 10(8) and 10(11.5)M(circle dot) using a double Schechter function with M* = 10(10.66)M(circle dot), phi*(1) = 3.96 x 10(-3) Mpc(-3), alpha(1) =-0.35, phi*(2) = 0.79 x 10(-3) Mpc(-3) and alpha(2) = -1.47. This result is more robust to uncertainties in the flow-model corrected redshifts than from the shallower Sloan Digital Sky Survey main sample (r < 17.8mag). The upturn in the GSMF is also seen directly in the i-band and K-band galaxy luminosity functions. Accurately measuring the GSMF below 10(8)M(circle dot) is possible within the GAMA survey volume but as expected requires deeper imaging data to address the contribution from low surface-brightness galaxies.",

author = "Baldry, {I. K.} and Driver, {S. P.} and J. Loveday and Taylor, {E. N.} and Kelvin, {L. S.} and J. Liske and P. Norberg and Robotham, {A. S. G.} and S. Brough and Hopkins, {A. M.} and Bamford, {S. P.} and Peacock, {J. A.} and J. Bland-Hawthorn and Conselice, {C. J.} and Croom, {S. M.} and Jones, {D. H.} and Parkinson, {H. R.} and Popescu, {C. C.} and M. Prescott and Sharp, {R. G.} and Tuffs, {R. J.}",

year = "2012",

month = mar,

day = "21",

doi = "10.1111/j.1365-2966.2012.20340.x",

language = "English",

volume = "421",

pages = "621--634",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "1",

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Baldry, IK, Driver, SP, Loveday, J, Taylor, EN, Kelvin, LS, Liske, J, Norberg, P, Robotham, ASG, Brough, S, Hopkins, AM, Bamford, SP, Peacock, JA, Bland-Hawthorn, J, Conselice, CJ, Croom, SM, Jones, DH, Parkinson, HR, Popescu, CC, Prescott, M, Sharp, RG & Tuffs, RJ 2012, 'Galaxy And Mass Assembly (GAMA): the galaxy stellar mass function at z 0.06', Monthly Notices of the Royal Astronomical Society, vol. 421, no. 1, pp. 621-634. https://doi.org/10.1111/j.1365-2966.2012.20340.x

TY - JOUR

T1 - Galaxy And Mass Assembly (GAMA): the galaxy stellar mass function at z 0.06

AU - Baldry, I. K.

AU - Driver, S. P.

AU - Loveday, J.

AU - Taylor, E. N.

AU - Kelvin, L. S.

AU - Liske, J.

AU - Norberg, P.

AU - Robotham, A. S. G.

AU - Brough, S.

AU - Hopkins, A. M.

AU - Bamford, S. P.

AU - Peacock, J. A.

AU - Bland-Hawthorn, J.

AU - Conselice, C. J.

AU - Croom, S. M.

AU - Jones, D. H.

AU - Parkinson, H. R.

AU - Popescu, C. C.

AU - Prescott, M.

AU - Sharp, R. G.

AU - Tuffs, R. J.

PY - 2012/3/21

Y1 - 2012/3/21

N2 - We determine the low-redshift field galaxy stellar mass function (GSMF) using an area of 143 deg(2) from the first three years of the Galaxy And Mass Assembly (GAMA) survey. The magnitude limits of this redshift survey are r < 19.4 mag over two-thirds and 19.8 mag over one-third of the area. The GSMF is determined from a sample of 5210 galaxies using a density-corrected maximum volume method. This efficiently overcomes the issue of fluctuations in the number density versus redshift. With H-0 = 70 km s (1) Mpc (1), the GSMF is well described between 10(8) and 10(11.5)M(circle dot) using a double Schechter function with M* = 10(10.66)M(circle dot), phi*(1) = 3.96 x 10(-3) Mpc(-3), alpha(1) =-0.35, phi*(2) = 0.79 x 10(-3) Mpc(-3) and alpha(2) = -1.47. This result is more robust to uncertainties in the flow-model corrected redshifts than from the shallower Sloan Digital Sky Survey main sample (r < 17.8mag). The upturn in the GSMF is also seen directly in the i-band and K-band galaxy luminosity functions. Accurately measuring the GSMF below 10(8)M(circle dot) is possible within the GAMA survey volume but as expected requires deeper imaging data to address the contribution from low surface-brightness galaxies.

AB - We determine the low-redshift field galaxy stellar mass function (GSMF) using an area of 143 deg(2) from the first three years of the Galaxy And Mass Assembly (GAMA) survey. The magnitude limits of this redshift survey are r < 19.4 mag over two-thirds and 19.8 mag over one-third of the area. The GSMF is determined from a sample of 5210 galaxies using a density-corrected maximum volume method. This efficiently overcomes the issue of fluctuations in the number density versus redshift. With H-0 = 70 km s (1) Mpc (1), the GSMF is well described between 10(8) and 10(11.5)M(circle dot) using a double Schechter function with M* = 10(10.66)M(circle dot), phi*(1) = 3.96 x 10(-3) Mpc(-3), alpha(1) =-0.35, phi*(2) = 0.79 x 10(-3) Mpc(-3) and alpha(2) = -1.47. This result is more robust to uncertainties in the flow-model corrected redshifts than from the shallower Sloan Digital Sky Survey main sample (r < 17.8mag). The upturn in the GSMF is also seen directly in the i-band and K-band galaxy luminosity functions. Accurately measuring the GSMF below 10(8)M(circle dot) is possible within the GAMA survey volume but as expected requires deeper imaging data to address the contribution from low surface-brightness galaxies.

U2 - 10.1111/j.1365-2966.2012.20340.x

DO - 10.1111/j.1365-2966.2012.20340.x

M3 - Article

SN - 0035-8711

VL - 421

SP - 621

EP - 634

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

Galaxy And Mass Assembly (GAMA): the galaxy stellar mass function at z 0.06

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