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The SAMI Galaxy Survey : Data Release Two with absorption-line physics value-added products

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Date
12/2018
Author
Scott, Nicholas
van de Sande, Jesse
Croom, Scott M.
Groves, Brent
Owers, Matt S.
Poetrodjojo, Henry
D'Eugenio, Francesco
Medling, Anne M.
Barat, Dilyar
Barone, Tania M.
Bland-Hawthorn, Joss
Brough, Sarah
Bryant, Julia
Cortese, Luca
Foster, Caroline
Green, Andrew W.
Oh, Sree
Colless, Matthew
Drinkwater, Michael J.
Driver, Simon P.
Goodwin, Michael
Gunawardhana, Madusha L. P.
Federrath, Christoph
Harischandra, Lloyd
Jin, Yifei
Lawrence, J. S.
Lorente, Nuria P.
Mannering, Elizabeth
O'Toole, Simon
Richards, Samuel N.
Sanchez, Sebastian F.
Schaefer, Adam L.
Sealey, Katrina
Sharp, Rob
Sweet, Sarah M.
Taranu, Dan S.
Varidel, Mathew
Keywords
Galaxies: abundances
Galaxies: general
Galaxies: kinematics and dynamics
Galaxies: star formation
Galaxies: stellar content
astronomical data bases: surveys
QB Astronomy
QC Physics
3rd-DAS
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Abstract
We present the second major release of data from the Sydney – Australian Astronomical Observatory Multi-Object Integral Field Spectrograph (SAMI) Galaxy Survey. Data Release Two includes data for 1559 galaxies, about 50 per cent of the full survey. Galaxies included have a redshift range 0.004 < z < 0.113 and a large stellar mass range 7.5 < log (M⋆/M⊙) < 11.6. The core data for each galaxy consist of two primary spectral cubes covering the blue and red optical wavelength ranges. For each primary cube, we also provide three spatially binned spectral cubes and a set of standardized aperture spectra. For each core data product, we provide a set of value-added data products. This includes all emission line value-added products from Data Release One, expanded to the larger sample. In addition, we include stellar kinematic and stellar population value-added products derived from absorption line measurements. The data are provided online through Australian Astronomical Optics’ Data Central. We illustrate the potential of this release by presenting the distribution of ∼350000 stellar velocity dispersion measurements from individual spaxels as a function of R/Re, divided in four galaxy mass bins. In the highest stellar mass bin [log (M⋆/M⊙) > 11], the velocity dispersion strongly increases towards the centre, whereas below log (M⋆/M⊙) < 10 we find no evidence for a clear increase in the central velocity dispersion. This suggests a transition mass around log (M⋆/M⊙) ∼ 10 for galaxies with or without a dispersion-dominated bulge.
Citation
Scott , N , van de Sande , J , Croom , S M , Groves , B , Owers , M S , Poetrodjojo , H , D'Eugenio , F , Medling , A M , Barat , D , Barone , T M , Bland-Hawthorn , J , Brough , S , Bryant , J , Cortese , L , Foster , C , Green , A W , Oh , S , Colless , M , Drinkwater , M J , Driver , S P , Goodwin , M , Gunawardhana , M L P , Federrath , C , Harischandra , L , Jin , Y , Lawrence , J S , Lorente , N P , Mannering , E , O'Toole , S , Richards , S N , Sanchez , S F , Schaefer , A L , Sealey , K , Sharp , R , Sweet , S M , Taranu , D S & Varidel , M 2018 , ' The SAMI Galaxy Survey : Data Release Two with absorption-line physics value-added products ' , Monthly Notices of the Royal Astronomical Society , vol. 481 , no. 2 , pp. 2299–2319 . https://doi.org/10.1093/mnras/sty2355
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
DOI
https://doi.org/10.1093/mnras/sty2355
ISSN
0035-8711
Type
Journal article
Rights
© 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at https://doi.org/10.1093/mnras/sty2355
Description
The data can be accessed via Australian Astronomical Optics' Data Central service (https://datacentral.org.au/)
Collections
  • University of St Andrews Research
URL
http://arxiv.org/abs/1808.03365
URI
http://hdl.handle.net/10023/18682

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