Galaxy and Mass Assembly (GAMA): The stellar mass budget by galaxy type

Amanda Moffett, Stephen Ingarfield, Simon Driver, Aaron Robotham, L.S. Kelvin, Rebecca Lange, U. Meštrić, M. Alpaslan, I.K. Baldry, J. Bland-Hawthorn, S. Brough, M.E. Cluver, Luke Davies, B.W. Holwerda, A.M. Hopkins, Prajwal Kafle, R. Kennedy, P. Norberg, E.N. Taylor

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Abstract

© 2016 The Authors. We report an expanded sample of visual morphological classifications from the Galaxy and Mass Assembly survey phase two, which now includes 7556 objects (previously 3727 in phase one). We define a local (z <0.06) sample and classify galaxies into E, S0-Sa, SB0-SBa, Sab- Scd, SBab-SBcd, Sd-Irr, and 'little blue spheroid' types. Using these updated classifications, we derive stellar mass function fits to individual galaxy populations divided both by morphological class and more general spheroid- or disc-dominated categories with a lower mass limit of log(M*/M?) = 8 (one dex below earlier morphological mass function determinations). We find that all individual morphological classes and the combined spheroid-/bulge-dominated classes are well described by single Schechter stellarmass function forms. We find that the total stellar mass densities for individual galaxy populations and for the entire galaxy population are bounded within our stellar mass limits and derive an estimated total stellar mass density of ?* = 2.5 × 108 M? Mpc-3 h0.7, which corresponds to an approximately 4 per cent fraction of baryons found in stars. The mass contributions to this total stellar mass density by galaxies that are dominated by spheroidal components (E and S0-Sa classes) and by disc components (Sab-Scd and Sd-Irr classes) are approximately 70 and 30 per cent, respectively.
Original languageEnglish
Pages (from-to)1308-1319
JournalMonthly Notices of the Royal Astronomical Society
Volume457
Issue number2
Early online date1 Feb 2016
DOIs
Publication statusPublished - 1 Apr 2016

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stellar mass
budgets
assembly
galaxies
spheroids
budget
baryons
stars

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Moffett, Amanda ; Ingarfield, Stephen ; Driver, Simon ; Robotham, Aaron ; Kelvin, L.S. ; Lange, Rebecca ; Meštrić, U. ; Alpaslan, M. ; Baldry, I.K. ; Bland-Hawthorn, J. ; Brough, S. ; Cluver, M.E. ; Davies, Luke ; Holwerda, B.W. ; Hopkins, A.M. ; Kafle, Prajwal ; Kennedy, R. ; Norberg, P. ; Taylor, E.N. / Galaxy and Mass Assembly (GAMA): The stellar mass budget by galaxy type. In: Monthly Notices of the Royal Astronomical Society. 2016 ; Vol. 457, No. 2. pp. 1308-1319.
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author = "Amanda Moffett and Stephen Ingarfield and Simon Driver and Aaron Robotham and L.S. Kelvin and Rebecca Lange and U. Meštrić and M. Alpaslan and I.K. Baldry and J. Bland-Hawthorn and S. Brough and M.E. Cluver and Luke Davies and B.W. Holwerda and A.M. Hopkins and Prajwal Kafle and R. Kennedy and P. Norberg and E.N. Taylor",
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Moffett, A, Ingarfield, S, Driver, S, Robotham, A, Kelvin, LS, Lange, R, Meštrić, U, Alpaslan, M, Baldry, IK, Bland-Hawthorn, J, Brough, S, Cluver, ME, Davies, L, Holwerda, BW, Hopkins, AM, Kafle, P, Kennedy, R, Norberg, P & Taylor, EN 2016, 'Galaxy and Mass Assembly (GAMA): The stellar mass budget by galaxy type' Monthly Notices of the Royal Astronomical Society, vol. 457, no. 2, pp. 1308-1319. https://doi.org/10.1093/mnras/stv2883

Galaxy and Mass Assembly (GAMA): The stellar mass budget by galaxy type. / Moffett, Amanda; Ingarfield, Stephen; Driver, Simon; Robotham, Aaron; Kelvin, L.S.; Lange, Rebecca; Meštrić, U.; Alpaslan, M.; Baldry, I.K.; Bland-Hawthorn, J.; Brough, S.; Cluver, M.E.; Davies, Luke; Holwerda, B.W.; Hopkins, A.M.; Kafle, Prajwal; Kennedy, R.; Norberg, P.; Taylor, E.N.

In: Monthly Notices of the Royal Astronomical Society, Vol. 457, No. 2, 01.04.2016, p. 1308-1319.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Galaxy and Mass Assembly (GAMA): The stellar mass budget by galaxy type

AU - Moffett, Amanda

AU - Ingarfield, Stephen

AU - Driver, Simon

AU - Robotham, Aaron

AU - Kelvin, L.S.

AU - Lange, Rebecca

AU - Meštrić, U.

AU - Alpaslan, M.

AU - Baldry, I.K.

AU - Bland-Hawthorn, J.

AU - Brough, S.

AU - Cluver, M.E.

AU - Davies, Luke

AU - Holwerda, B.W.

AU - Hopkins, A.M.

AU - Kafle, Prajwal

AU - Kennedy, R.

AU - Norberg, P.

AU - Taylor, E.N.

PY - 2016/4/1

Y1 - 2016/4/1

N2 - © 2016 The Authors. We report an expanded sample of visual morphological classifications from the Galaxy and Mass Assembly survey phase two, which now includes 7556 objects (previously 3727 in phase one). We define a local (z <0.06) sample and classify galaxies into E, S0-Sa, SB0-SBa, Sab- Scd, SBab-SBcd, Sd-Irr, and 'little blue spheroid' types. Using these updated classifications, we derive stellar mass function fits to individual galaxy populations divided both by morphological class and more general spheroid- or disc-dominated categories with a lower mass limit of log(M*/M?) = 8 (one dex below earlier morphological mass function determinations). We find that all individual morphological classes and the combined spheroid-/bulge-dominated classes are well described by single Schechter stellarmass function forms. We find that the total stellar mass densities for individual galaxy populations and for the entire galaxy population are bounded within our stellar mass limits and derive an estimated total stellar mass density of ?* = 2.5 × 108 M? Mpc-3 h0.7, which corresponds to an approximately 4 per cent fraction of baryons found in stars. The mass contributions to this total stellar mass density by galaxies that are dominated by spheroidal components (E and S0-Sa classes) and by disc components (Sab-Scd and Sd-Irr classes) are approximately 70 and 30 per cent, respectively.

AB - © 2016 The Authors. We report an expanded sample of visual morphological classifications from the Galaxy and Mass Assembly survey phase two, which now includes 7556 objects (previously 3727 in phase one). We define a local (z <0.06) sample and classify galaxies into E, S0-Sa, SB0-SBa, Sab- Scd, SBab-SBcd, Sd-Irr, and 'little blue spheroid' types. Using these updated classifications, we derive stellar mass function fits to individual galaxy populations divided both by morphological class and more general spheroid- or disc-dominated categories with a lower mass limit of log(M*/M?) = 8 (one dex below earlier morphological mass function determinations). We find that all individual morphological classes and the combined spheroid-/bulge-dominated classes are well described by single Schechter stellarmass function forms. We find that the total stellar mass densities for individual galaxy populations and for the entire galaxy population are bounded within our stellar mass limits and derive an estimated total stellar mass density of ?* = 2.5 × 108 M? Mpc-3 h0.7, which corresponds to an approximately 4 per cent fraction of baryons found in stars. The mass contributions to this total stellar mass density by galaxies that are dominated by spheroidal components (E and S0-Sa classes) and by disc components (Sab-Scd and Sd-Irr classes) are approximately 70 and 30 per cent, respectively.

U2 - 10.1093/mnras/stv2883

DO - 10.1093/mnras/stv2883

M3 - Article

VL - 457

SP - 1308

EP - 1319

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -