Galaxy and mass assembly: evolution of the H alpha luminosity function and star formation rate density up to z < 0.35

Gunawardhana, M. L. P., Hopkins, A. M., Bland-Hawthorn, J., Brough, S., Sharp, R., Loveday, J., Taylor, E., Jones, D. H., Lara-López, M. A., Bauer, A. E., Colless, M., Owers, M., Baldry, I. K., López–Sánchez, A. R., Foster, C., Bamford, S., Brown, M. J. I., Driver, S. P., Drinkwater, M. J., Liske, J., Meyer, M., Norberg, P., Robotham, A. S. G., Ching, J. H. Y., Cluver, M. E., Croom, S., Kelvin, L., Prescott, M., Steele, O., Thomas, D. and Wang, L. (2013) Galaxy and mass assembly: evolution of the H alpha luminosity function and star formation rate density up to z < 0.35. Monthly Notices of the Royal Astronomical Society, 433 4: 2764-2789. doi:10.1093/mnras/stt890

Author Gunawardhana, M. L. P.
Hopkins, A. M.
Bland-Hawthorn, J.
Brough, S.
Sharp, R.
Loveday, J.
Taylor, E.
Jones, D. H.
Lara-López, M. A.
Bauer, A. E.
Colless, M.
Owers, M.
Baldry, I. K.
López–Sánchez, A. R.
Foster, C.
Bamford, S.
Brown, M. J. I.
Driver, S. P.
Drinkwater, M. J.
Liske, J.
Meyer, M.
Norberg, P.
Robotham, A. S. G.
Ching, J. H. Y.
Cluver, M. E.
Croom, S.
Kelvin, L.
Prescott, M.
Steele, O.
Thomas, D.
Wang, L.
Title Galaxy and mass assembly: evolution of the H alpha luminosity function and star formation rate density up to z < 0.35
Formatted title
Galaxy and mass assembly: evolution of the Hα luminosity function and star formation rate density up to 𝑧 < 0.35
Journal name Monthly Notices of the Royal Astronomical Society   Check publisher's open access policy
ISSN 0035-8711
Publication date 2013-08-21
Sub-type Article (original research)
DOI 10.1093/mnras/stt890
Open Access Status DOI
Volume 433
Issue 4
Start page 2764
End page 2789
Total pages 26
Place of publication Oxford, United Kingdom
Publisher Oxford University Press
Collection year 2014
Language eng
Formatted abstract
Measurements of the low-𝑧 H𝛼 luminosity function, Φ, have a large dispersion in the local number density of sources (~0.5–1 Mpc−3 dex−1), and correspondingly in the star formation rate density (SFRD). The possible causes for these discrepancies include limited volume sampling, biases arising from survey sample selection, different methods of correcting for dust obscuration and active galactic nucleus contamination. The Galaxy And Mass Assembly (GAMA) survey and Sloan Digital Sky Survey (SDSS) provide deep spectroscopic observations over a wide sky area enabling detection of a large sample of star-forming galaxies spanning 0.001 < SFRH𝛼 (M yr−1) < 100 with which to robustly measure the evolution of the SFRD in the low-𝑧 Universe. The large number of high-SFR galaxies present in our sample allow an improved measurement of the bright end of the luminosity function, indicating that the decrease in Φ at bright luminosities is best described by a Saunders functional form rather than the traditional Schechter function. This result is consistent with other published luminosity functions in the far-infrared and radio. For GAMA and SDSS, we find the r-band apparent magnitude limit, combined with the subsequent requirement for H𝛼 detection leads to an incompleteness due to missing bright H𝛼 sources with faint r-band magnitudes.
Keyword Surveys
Galaxies: evolution
Galaxies: formation
Galaxies: interactions
Galaxies: luminosity function
Mass function
Galaxies: starburst
Digital Sky Survey
Active galactic nuclei
Faint radio-sources
Subaru Deep Field
Formation rate indicators
Rest-frame ultraviolet
France Redshift Survey
Square degree field
Gamma-ray bursts
Formation history
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2014 Collection
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 41 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 41 times in Scopus Article | Citations
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