Galaxy And Mass Assembly (GAMA): stellar mass functions by Hubble type

Lee S. Kelvin; Simon P. Driver; Aaron S. G. Robotham; Edward N. Taylor; Alister W. Graham; Mehmet Alpaslan; Ivan Baldry; Steven P. Bamford; Amanda E. Bauer; Joss Bland-Hawthorn; Michael J. I. Brown; Matthew Colless; Christopher J. Conselice; Benne W. Holwerda; Andrew M. Hopkins; Maritza A. Lara-Lopez; Jochen Liske; Angel R. Lopez-Sanchez; Jon Loveday; Peder Norberg; Steven Phillipps; Cristina C. Popescu; Matthew Prescott; Anne E. Sansom; Richard J. Tuffs

doi:10.1093/mnras/stu1507

Galaxy And Mass Assembly (GAMA): stellar mass functions by Hubble type

Lee S. Kelvin^*, Simon P. Driver, Aaron S. G. Robotham, Edward N. Taylor, Alister W. Graham, Mehmet Alpaslan, Ivan Baldry, Steven P. Bamford, Amanda E. Bauer, Joss Bland-Hawthorn, Michael J. I. Brown, Matthew Colless, Christopher J. Conselice, Benne W. Holwerda, Andrew M. Hopkins, Maritza A. Lara-Lopez, Jochen Liske, Angel R. Lopez-Sanchez, Jon Loveday, Peder NorbergSteven Phillipps, Cristina C. Popescu, Matthew Prescott, Anne E. Sansom, Richard J. Tuffs

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract

We present an estimate of the galaxy stellar mass function and its division by morphological type in the local (0.025 < z < 0.06) Universe. Adopting robust morphological classifications as previously presented (Kelvin et al.) for a sample of 3727 galaxies taken from the Galaxy And Mass Assembly survey, we define a local volume and stellar mass limited sub-sample of 2711 galaxies to a lower stellar mass limit of M = 10^9.0 M_Θ. We confirm that the galaxy stellar mass function is well described by a double-Schechter function given by Μ* = 10^10.64 M_Θ, α₁ = 0.43, φ₁* = 4.18 dex^-1 Mpc^-3, α₂ = −1.50 and φ₂* = 0.74 dex^-1 Mpc^-3. The constituent morphological-type stellar mass functions are well sampled above our lower stellar mass limit, excepting the faint little blue spheroid population of galaxies. We find approximately 71_-4⁺³ per cent of the stellar mass in the local Universe is found within spheroid-dominated galaxies; ellipticals and S0-Sas. The remaining 29_-3⁺⁴per cent falls predominantly within late-type disc-dominated systems, Sab-Scds and Sd-Irrs. Adopting reasonable bulge-to-total ratios implies that approximately half the stellar mass today resides in spheroidal structures, and half in disc structures. Within this local sample, we find approximate stellar mass proportions for E : S0-Sa : Sab-Scd : Sd-Irr of 34 : 37 : 24 :5.

Original language	English
Pages (from-to)	1647-1659
Number of pages	13
Journal	Monthly Notices of the Royal Astronomical Society
Volume	444
Issue number	2
Early online date	30 Aug 2014
DOIs	https://doi.org/10.1093/mnras/stu1507
Publication status	Published - 21 Oct 2014

Keywords

Galaxies: elliptical and lenticular
cD galaxies: fundamental parameters
Galaxies: luminosity function
Mass function
Galaxies: spiral
Digital sky survey
Star-forming galaxies
Dark-matter Haloes
Elliptic galaxies
Atlas(3D) project
Morphological class
Structural decomposition
Luminosity functions
Kinematic properties
Metallicity relation

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10.1093/mnras/stu1507

Kelvin_2014_MNRAS_GAMAStellar
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2014 The Authors, Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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Kelvin, L. S., Driver, S. P., Robotham, A. S. G., Taylor, E. N., Graham, A. W., Alpaslan, M., Baldry, I., Bamford, S. P., Bauer, A. E., Bland-Hawthorn, J., Brown, M. J. I., Colless, M., Conselice, C. J., Holwerda, B. W., Hopkins, A. M., Lara-Lopez, M. A., Liske, J., Lopez-Sanchez, A. R., Loveday, J., ... Tuffs, R. J. (2014). Galaxy And Mass Assembly (GAMA): stellar mass functions by Hubble type. Monthly Notices of the Royal Astronomical Society, 444(2), 1647-1659. https://doi.org/10.1093/mnras/stu1507

@article{3aeb37bd9cab49f49fbd05cdee87eb24,

title = "Galaxy And Mass Assembly (GAMA): stellar mass functions by Hubble type",

abstract = "We present an estimate of the galaxy stellar mass function and its division by morphological type in the local (0.025 < z < 0.06) Universe. Adopting robust morphological classifications as previously presented (Kelvin et al.) for a sample of 3727 galaxies taken from the Galaxy And Mass Assembly survey, we define a local volume and stellar mass limited sub-sample of 2711 galaxies to a lower stellar mass limit of M = 109.0 MΘ. We confirm that the galaxy stellar mass function is well described by a double-Schechter function given by Μ* = 1010.64 MΘ, α1 = 0.43, φ1* = 4.18 dex-1 Mpc-3, α2 = −1.50 and φ2* = 0.74 dex-1 Mpc-3. The constituent morphological-type stellar mass functions are well sampled above our lower stellar mass limit, excepting the faint little blue spheroid population of galaxies. We find approximately 71-4+3 per cent of the stellar mass in the local Universe is found within spheroid-dominated galaxies; ellipticals and S0-Sas. The remaining 29-3+4 per cent falls predominantly within late-type disc-dominated systems, Sab-Scds and Sd-Irrs. Adopting reasonable bulge-to-total ratios implies that approximately half the stellar mass today resides in spheroidal structures, and half in disc structures. Within this local sample, we find approximate stellar mass proportions for E : S0-Sa : Sab-Scd : Sd-Irr of 34 : 37 : 24 :5.",

keywords = "Galaxies: elliptical and lenticular, cD galaxies: fundamental parameters, Galaxies: luminosity function, Mass function, Galaxies: spiral, Digital sky survey, Star-forming galaxies, Dark-matter Haloes, Elliptic galaxies, Atlas(3D) project, Morphological class, Structural decomposition, Luminosity functions, Kinematic properties, Metallicity relation",

author = "Kelvin, {Lee S.} and Driver, {Simon P.} and Robotham, {Aaron S. G.} and Taylor, {Edward N.} and Graham, {Alister W.} and Mehmet Alpaslan and Ivan Baldry and Bamford, {Steven P.} and Bauer, {Amanda E.} and Joss Bland-Hawthorn and Brown, {Michael J. I.} and Matthew Colless and Conselice, {Christopher J.} and Holwerda, {Benne W.} and Hopkins, {Andrew M.} and Lara-Lopez, {Maritza A.} and Jochen Liske and Lopez-Sanchez, {Angel R.} and Jon Loveday and Peder Norberg and Steven Phillipps and Popescu, {Cristina C.} and Matthew Prescott and Sansom, {Anne E.} and Tuffs, {Richard J.}",

note = "This work was supported by the Austrian Science Foundation FWF under grant P23946. AWG was supported under the Australian Research Council's funding scheme FT110100263. ",

year = "2014",

month = oct,

day = "21",

doi = "10.1093/mnras/stu1507",

language = "English",

volume = "444",

pages = "1647--1659",

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

issn = "0035-8711",

publisher = "Oxford University Press",

number = "2",

}

Kelvin, LS, Driver, SP, Robotham, ASG, Taylor, EN, Graham, AW, Alpaslan, M, Baldry, I, Bamford, SP, Bauer, AE, Bland-Hawthorn, J, Brown, MJI, Colless, M, Conselice, CJ, Holwerda, BW, Hopkins, AM, Lara-Lopez, MA, Liske, J, Lopez-Sanchez, AR, Loveday, J, Norberg, P, Phillipps, S, Popescu, CC, Prescott, M, Sansom, AE & Tuffs, RJ 2014, 'Galaxy And Mass Assembly (GAMA): stellar mass functions by Hubble type', Monthly Notices of the Royal Astronomical Society, vol. 444, no. 2, pp. 1647-1659. https://doi.org/10.1093/mnras/stu1507

TY - JOUR

T1 - Galaxy And Mass Assembly (GAMA)

T2 - stellar mass functions by Hubble type

AU - Kelvin, Lee S.

AU - Driver, Simon P.

AU - Robotham, Aaron S. G.

AU - Taylor, Edward N.

AU - Graham, Alister W.

AU - Alpaslan, Mehmet

AU - Baldry, Ivan

AU - Bamford, Steven P.

AU - Bauer, Amanda E.

AU - Bland-Hawthorn, Joss

AU - Brown, Michael J. I.

AU - Colless, Matthew

AU - Conselice, Christopher J.

AU - Holwerda, Benne W.

AU - Hopkins, Andrew M.

AU - Lara-Lopez, Maritza A.

AU - Liske, Jochen

AU - Lopez-Sanchez, Angel R.

AU - Loveday, Jon

AU - Norberg, Peder

AU - Phillipps, Steven

AU - Popescu, Cristina C.

AU - Prescott, Matthew

AU - Sansom, Anne E.

AU - Tuffs, Richard J.

N1 - This work was supported by the Austrian Science Foundation FWF under grant P23946. AWG was supported under the Australian Research Council's funding scheme FT110100263.

PY - 2014/10/21

Y1 - 2014/10/21

N2 - We present an estimate of the galaxy stellar mass function and its division by morphological type in the local (0.025 < z < 0.06) Universe. Adopting robust morphological classifications as previously presented (Kelvin et al.) for a sample of 3727 galaxies taken from the Galaxy And Mass Assembly survey, we define a local volume and stellar mass limited sub-sample of 2711 galaxies to a lower stellar mass limit of M = 109.0 MΘ. We confirm that the galaxy stellar mass function is well described by a double-Schechter function given by Μ* = 1010.64 MΘ, α1 = 0.43, φ1* = 4.18 dex-1 Mpc-3, α2 = −1.50 and φ2* = 0.74 dex-1 Mpc-3. The constituent morphological-type stellar mass functions are well sampled above our lower stellar mass limit, excepting the faint little blue spheroid population of galaxies. We find approximately 71-4+3 per cent of the stellar mass in the local Universe is found within spheroid-dominated galaxies; ellipticals and S0-Sas. The remaining 29-3+4 per cent falls predominantly within late-type disc-dominated systems, Sab-Scds and Sd-Irrs. Adopting reasonable bulge-to-total ratios implies that approximately half the stellar mass today resides in spheroidal structures, and half in disc structures. Within this local sample, we find approximate stellar mass proportions for E : S0-Sa : Sab-Scd : Sd-Irr of 34 : 37 : 24 :5.

AB - We present an estimate of the galaxy stellar mass function and its division by morphological type in the local (0.025 < z < 0.06) Universe. Adopting robust morphological classifications as previously presented (Kelvin et al.) for a sample of 3727 galaxies taken from the Galaxy And Mass Assembly survey, we define a local volume and stellar mass limited sub-sample of 2711 galaxies to a lower stellar mass limit of M = 109.0 MΘ. We confirm that the galaxy stellar mass function is well described by a double-Schechter function given by Μ* = 1010.64 MΘ, α1 = 0.43, φ1* = 4.18 dex-1 Mpc-3, α2 = −1.50 and φ2* = 0.74 dex-1 Mpc-3. The constituent morphological-type stellar mass functions are well sampled above our lower stellar mass limit, excepting the faint little blue spheroid population of galaxies. We find approximately 71-4+3 per cent of the stellar mass in the local Universe is found within spheroid-dominated galaxies; ellipticals and S0-Sas. The remaining 29-3+4 per cent falls predominantly within late-type disc-dominated systems, Sab-Scds and Sd-Irrs. Adopting reasonable bulge-to-total ratios implies that approximately half the stellar mass today resides in spheroidal structures, and half in disc structures. Within this local sample, we find approximate stellar mass proportions for E : S0-Sa : Sab-Scd : Sd-Irr of 34 : 37 : 24 :5.

KW - Galaxies: elliptical and lenticular

KW - cD galaxies: fundamental parameters

KW - Galaxies: luminosity function

KW - Mass function

KW - Galaxies: spiral

KW - Digital sky survey

KW - Star-forming galaxies

KW - Dark-matter Haloes

KW - Elliptic galaxies

KW - Atlas(3D) project

KW - Morphological class

KW - Structural decomposition

KW - Luminosity functions

KW - Kinematic properties

KW - Metallicity relation

U2 - 10.1093/mnras/stu1507

DO - 10.1093/mnras/stu1507

M3 - Article

SN - 0035-8711

VL - 444

SP - 1647

EP - 1659

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

Galaxy And Mass Assembly (GAMA): stellar mass functions by Hubble type

Abstract

Keywords

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Wide Area Search for Planets: Project support for the Wide Area Search for Planets

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