Hostname: page-component-77c89778f8-swr86 Total loading time: 0 Render date: 2024-07-17T16:58:36.707Z Has data issue: false hasContentIssue false
  • English
  • Français

Colour gradients of low-redshift galaxies in the DESI Legacy Imaging Survey

Published online by Cambridge University Press:  09 June 2023

Li-Wen Liao Open the ORCID record for Li-Wen Liao [Opens in a new window]  and
Andrew P. Cooper
Li-Wen Liao
Affiliation:
Institute of Astronomy and Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan Center for Informatics and Computation in Astronomy, National Tsing Hua University, Hsinchu 30013, Taiwan
Andrew P. Cooper
Affiliation:
Institute of Astronomy and Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan Center for Informatics and Computation in Astronomy, National Tsing Hua University, Hsinchu 30013, Taiwan Physics Division, National Center for Theoretical Sciences, Taipei 10617, Taiwan
Get access Rights & Permissions [Opens in a new window]

Abstract

Radial colour gradients within galaxies arise from gradients of stellar age, metallicity, and dust reddening. Large samples of colour gradients from wide-area imaging surveys can be used to constrain galaxy formation models. Here we measured colour gradients for low-redshift galaxies using photometry from the 9th DESI Legacy Imaging Survey (LS), which reaches r ∼ 24 over ∼14,000 deg2. We investigate empirical relationships between colour gradients, M*, and sSFR. We compared our results with the prediction of the Illustris TNG-100 simulation using SDSS mock images.

Keywords

galaxies: formationgalaxies: statisticsgalaxies: structuregalaxies: general
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 17 , Symposium S373: Resolving the Rise and Fall of Star Formation in Galaxies , August 2021 , pp. 140 - 142
Check for updates
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

De Lucia, G., Blaizot, J., 2007, MNRAS, 375, 2 10.1111/j.1365-2966.2006.11287.xCrossRefGoogle Scholar
Dey, A., et al., 2019, AJ, 157, 168 Google Scholar
Guo, Q., White, S. D. M., 2008, MNRAS, 384, 2 10.1111/j.1365-2966.2007.12619.xCrossRefGoogle Scholar
Kauffmann, G., Charlot, S., White, S. D. M., 1996, MNRAS, 283, L117 10.1093/mnras/283.4.L117CrossRefGoogle Scholar
Larson, R. B., 1974, MNRAS, 166, 585 10.1093/mnras/166.3.585CrossRefGoogle Scholar
Liao, L.-W., Cooper, A., 2022, arXiv e-prints, p. arXiv:2209.14166Google Scholar
Marinacci, F., et al., 2018, MNRAS, 480, 5113 Google Scholar
Naiman, J. P., et al., 2018, MNRAS, 477, 1206 10.1093/mnras/sty618CrossRefGoogle Scholar
Nelson, D., et al., 2018, MNRAS, 475, 624 10.1136/heartjnl-2017-312672CrossRefGoogle Scholar
Pillepich, A., et al., 2018, MNRAS, 475, 648 10.1093/mnras/stx3112CrossRefGoogle Scholar
Rodriguez-Gomez, V., et al., 2017, MNRAS, 467, 3083 10.1093/mnras/stx305CrossRefGoogle Scholar
Springel, V., et al., 2018, MNRAS, 475, 676 10.1093/mnras/stx3304CrossRefGoogle Scholar
Tinsley, B. M., Larson, R. B., 1978, ApJ, 221, 554 10.1086/156056CrossRefGoogle Scholar
Tortora, C., Napolitano, N. R., Cardone, V. F., Capaccioli, M., Jetzer, P., Molinaro, R., 2010, MNRAS, 407, 144 10.1111/j.1365-2966.2010.16938.xCrossRefGoogle Scholar
Wang, W., et al., 2019, MNRAS, 487, 1580 Google Scholar
de Jong, R. S., 1996, in Minniti, D., Rix, H.-W., eds, Spiral Galaxies in the Near-IR. p. 43 (arXiv:astro-ph/9509001), doi: 10.1007/978-3-540-49739-46 CrossRefGoogle Scholar