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

Kelvin, L. S., Driver, S. P., Robotham, A. S. G., Taylor, E. N., Graham, A. W., Alpaslan, M., et al. (2014). Galaxy And Mass Assembly (GAMA): Stellar mass functions by Hubble type. Monthly Notices of the Royal Astronomical Society, 444, 1647-1659. doi:10.1093/mnras/stu1507.

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 Creators:
Kelvin, Lee S., Author
Driver, Simon P., Author
Robotham, Aaron S. G., Author
Taylor, Edward N., Author
Graham, Alister W., Author
Alpaslan, Mehmet, Author
Baldry, Ivan, Author
Bamford, Steven P., Author
Bauer, Amanda E., Author
Bland-Hawthorn, Joss, Author
Brown, Michael J. I., Author
Colless, Matthew, Author
Conselice, Christopher J., Author
Holwerda, Benne W., Author
Hopkins, Andrew M., Author
Lara-López, Maritza A., Author
Liske, Jochen, Author
López-Sánchez, Ángel R., Author
Loveday, Jon, Author
Norberg, Peder, Author
Phillipps, Steven, AuthorPopescu, Cristina C., AuthorPrescott, Matthew, AuthorSansom, Anne E., AuthorTuffs, R.1, Author               more..
Affiliations:
1Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550              

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Free keywords: Astrophysics, Galaxy Astrophysics, astro-ph.GA
 MPINP: Infrarot-Astrophysik - Abteilung Hofmann
 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 3,727 galaxies taken from the Galaxy And Mass Assembly survey, we define a local volume and stellar mass limited sub-sample of 2,711 galaxies to a lower stellar mass limit of M = 10^9.0 M_sun. We confirm that the galaxy stellar mass function is well described by a double Schechter function given by M* = 10^10.64 M_sun, {\alpha}1 = -0.43, {\phi}*1 = 4.18 dex^-1 Mpc^-3, {\alpha}2 = -1.50 and {\phi}*2 = 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+3-4% of the stellar mass in the local Universe is found within spheroid dominated galaxies; ellipticals and S0-Sas. The remaining 29+4-3% falls predominantly within late type disk 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 disk structures. Within this local sample, we find approximate stellar mass proportions for E : S0-Sa : Sab-Scd : Sd-Irr of 34 : 37 : 24 : 5.

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 Dates: 2014
 Publication Status: Published online
 Pages: 16 pages, 6 figures, accepted for publication in MNRAS (see MNRAS version for high-quality figures)
 Publishing info: -
 Table of Contents: -
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Title: Monthly Notices of the Royal Astronomical Society
  Other : Mon. Not. R. Astron. Soc.
Source Genre: Journal
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Affiliations:
Publ. Info: Oxford : Oxford University Press
Pages: - Volume / Issue: 444 Sequence Number: - Start / End Page: 1647 - 1659 Identifier: ISSN: 1365-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000024150