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SDSS-IV MaNGA: stellar population gradients as a function of galaxy environment

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SDSS-IV MaNGA : stellar population gradients as a function of galaxy environment. / Goddard, Daniel; Thomas, Daniel; Maraston, Claudia; Westfall, Kyle; Etherington, James; Riffel, Rogerio; Mallmann, Nicolas D.; Zheng, Zheng; Argudo-Fernandez, Maria; Bershady, Matthew A.; Bundy, Kevin; Drory, Niv; Law, David R.; Yan, Renbin; Wake, David; Weijmans, Anne-Marie; Bizyaev, Dmitry; Brownstein, Joel R.; Lane, Richard R.; Maiolino, Roberto; Masters, Karen L.; Merrifield, Michael R.; Nitschelm, Christian; Pan, Kaike; Roman-Lopes, Alexandre; Storchi-Bergmann, Thaisa.

In: Monthly Notices of the Royal Astronomical Society, Vol. 465, No. 1, 11.02.2017, p. 688-700.

Research output: Contribution to journalArticle

Harvard

Goddard, D, Thomas, D, Maraston, C, Westfall, K, Etherington, J, Riffel, R, Mallmann, ND, Zheng, Z, Argudo-Fernandez, M, Bershady, MA, Bundy, K, Drory, N, Law, DR, Yan, R, Wake, D, Weijmans, A-M, Bizyaev, D, Brownstein, JR, Lane, RR, Maiolino, R, Masters, KL, Merrifield, MR, Nitschelm, C, Pan, K, Roman-Lopes, A & Storchi-Bergmann, T 2017, 'SDSS-IV MaNGA: stellar population gradients as a function of galaxy environment', Monthly Notices of the Royal Astronomical Society, vol. 465, no. 1, pp. 688-700. https://doi.org/10.1093/mnras/stw2719

APA

Goddard, D., Thomas, D., Maraston, C., Westfall, K., Etherington, J., Riffel, R., Mallmann, N. D., Zheng, Z., Argudo-Fernandez, M., Bershady, M. A., Bundy, K., Drory, N., Law, D. R., Yan, R., Wake, D., Weijmans, A-M., Bizyaev, D., Brownstein, J. R., Lane, R. R., ... Storchi-Bergmann, T. (2017). SDSS-IV MaNGA: stellar population gradients as a function of galaxy environment. Monthly Notices of the Royal Astronomical Society, 465(1), 688-700. https://doi.org/10.1093/mnras/stw2719

Vancouver

Goddard D, Thomas D, Maraston C, Westfall K, Etherington J, Riffel R et al. SDSS-IV MaNGA: stellar population gradients as a function of galaxy environment. Monthly Notices of the Royal Astronomical Society. 2017 Feb 11;465(1):688-700. https://doi.org/10.1093/mnras/stw2719

Author

Goddard, Daniel ; Thomas, Daniel ; Maraston, Claudia ; Westfall, Kyle ; Etherington, James ; Riffel, Rogerio ; Mallmann, Nicolas D. ; Zheng, Zheng ; Argudo-Fernandez, Maria ; Bershady, Matthew A. ; Bundy, Kevin ; Drory, Niv ; Law, David R. ; Yan, Renbin ; Wake, David ; Weijmans, Anne-Marie ; Bizyaev, Dmitry ; Brownstein, Joel R. ; Lane, Richard R. ; Maiolino, Roberto ; Masters, Karen L. ; Merrifield, Michael R. ; Nitschelm, Christian ; Pan, Kaike ; Roman-Lopes, Alexandre ; Storchi-Bergmann, Thaisa. / SDSS-IV MaNGA : stellar population gradients as a function of galaxy environment. In: Monthly Notices of the Royal Astronomical Society. 2017 ; Vol. 465, No. 1. pp. 688-700.

Bibtex

@article{5f077f10d23a4a349bcbcb63110b9957,
title = "SDSS-IV MaNGA: stellar population gradients as a function of galaxy environment",
abstract = "We study the internal radial gradients of stellar population properties within 1.5 Re and analyse the impact of galaxy environment. We use a representative sample of 721 galaxies with masses ranging between 109 M⊙ and 1011.5 M⊙ from the SDSS-IV survey MaNGA. We split this sample by morphology into early-type and late-type galaxies. Using the full spectral fitting code firefly, we derive the light and mass-weighted stellar population properties, age and metallicity, and calculate the gradients of these properties. We use three independent methods to quantify galaxy environment, namely the Nth nearest neighbour, the tidal strength parameter Q and distinguish between central and satellite galaxies. In our analysis, we find that early-type galaxies generally exhibit shallow light-weighted age gradients in agreement with the literature and mass-weighted median age gradients tend to be slightly positive. Late-type galaxies, instead, have negative light-weighted age gradients. We detect negative metallicity gradients in both early- and late-type galaxies that correlate with galaxy mass, with the gradients being steeper and the correlation with mass being stronger in late-types. We find, however, that stellar population gradients, for both morphological classifications, have no significant correlation with galaxy environment for all three characterizations of environment. Our results suggest that galaxy mass is the main driver of stellar population gradients in both early and late-type galaxies, and any environmental dependence, if present at all, must be very subtle. ",
keywords = "astro-ph.GA, surveys, galaxies: elliptical and lenticular, cD, galaxies: evolution, galaxies: formation, galaxies: spiral, galaxies: stellar content, RCUK, STFC",
author = "Daniel Goddard and Daniel Thomas and Claudia Maraston and Kyle Westfall and James Etherington and Rogerio Riffel and Mallmann, {Nicolas D.} and Zheng Zheng and Maria Argudo-Fernandez and Bershady, {Matthew A.} and Kevin Bundy and Niv Drory and Law, {David R.} and Renbin Yan and David Wake and Anne-Marie Weijmans and Dmitry Bizyaev and Brownstein, {Joel R.} and Lane, {Richard R.} and Roberto Maiolino and Masters, {Karen L.} and Merrifield, {Michael R.} and Christian Nitschelm and Kaike Pan and Alexandre Roman-Lopes and Thaisa Storchi-Bergmann",
note = "14 pages, 8 figures, 4 tables. MNRAS in press",
year = "2017",
month = feb,
day = "11",
doi = "10.1093/mnras/stw2719",
language = "English",
volume = "465",
pages = "688--700",
journal = "MNRAS",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "1",

}

RIS

TY - JOUR

T1 - SDSS-IV MaNGA

T2 - stellar population gradients as a function of galaxy environment

AU - Goddard, Daniel

AU - Thomas, Daniel

AU - Maraston, Claudia

AU - Westfall, Kyle

AU - Etherington, James

AU - Riffel, Rogerio

AU - Mallmann, Nicolas D.

AU - Zheng, Zheng

AU - Argudo-Fernandez, Maria

AU - Bershady, Matthew A.

AU - Bundy, Kevin

AU - Drory, Niv

AU - Law, David R.

AU - Yan, Renbin

AU - Wake, David

AU - Weijmans, Anne-Marie

AU - Bizyaev, Dmitry

AU - Brownstein, Joel R.

AU - Lane, Richard R.

AU - Maiolino, Roberto

AU - Masters, Karen L.

AU - Merrifield, Michael R.

AU - Nitschelm, Christian

AU - Pan, Kaike

AU - Roman-Lopes, Alexandre

AU - Storchi-Bergmann, Thaisa

N1 - 14 pages, 8 figures, 4 tables. MNRAS in press

PY - 2017/2/11

Y1 - 2017/2/11

N2 - We study the internal radial gradients of stellar population properties within 1.5 Re and analyse the impact of galaxy environment. We use a representative sample of 721 galaxies with masses ranging between 109 M⊙ and 1011.5 M⊙ from the SDSS-IV survey MaNGA. We split this sample by morphology into early-type and late-type galaxies. Using the full spectral fitting code firefly, we derive the light and mass-weighted stellar population properties, age and metallicity, and calculate the gradients of these properties. We use three independent methods to quantify galaxy environment, namely the Nth nearest neighbour, the tidal strength parameter Q and distinguish between central and satellite galaxies. In our analysis, we find that early-type galaxies generally exhibit shallow light-weighted age gradients in agreement with the literature and mass-weighted median age gradients tend to be slightly positive. Late-type galaxies, instead, have negative light-weighted age gradients. We detect negative metallicity gradients in both early- and late-type galaxies that correlate with galaxy mass, with the gradients being steeper and the correlation with mass being stronger in late-types. We find, however, that stellar population gradients, for both morphological classifications, have no significant correlation with galaxy environment for all three characterizations of environment. Our results suggest that galaxy mass is the main driver of stellar population gradients in both early and late-type galaxies, and any environmental dependence, if present at all, must be very subtle.

AB - We study the internal radial gradients of stellar population properties within 1.5 Re and analyse the impact of galaxy environment. We use a representative sample of 721 galaxies with masses ranging between 109 M⊙ and 1011.5 M⊙ from the SDSS-IV survey MaNGA. We split this sample by morphology into early-type and late-type galaxies. Using the full spectral fitting code firefly, we derive the light and mass-weighted stellar population properties, age and metallicity, and calculate the gradients of these properties. We use three independent methods to quantify galaxy environment, namely the Nth nearest neighbour, the tidal strength parameter Q and distinguish between central and satellite galaxies. In our analysis, we find that early-type galaxies generally exhibit shallow light-weighted age gradients in agreement with the literature and mass-weighted median age gradients tend to be slightly positive. Late-type galaxies, instead, have negative light-weighted age gradients. We detect negative metallicity gradients in both early- and late-type galaxies that correlate with galaxy mass, with the gradients being steeper and the correlation with mass being stronger in late-types. We find, however, that stellar population gradients, for both morphological classifications, have no significant correlation with galaxy environment for all three characterizations of environment. Our results suggest that galaxy mass is the main driver of stellar population gradients in both early and late-type galaxies, and any environmental dependence, if present at all, must be very subtle.

KW - astro-ph.GA

KW - surveys

KW - galaxies: elliptical and lenticular

KW - cD

KW - galaxies: evolution

KW - galaxies: formation

KW - galaxies: spiral

KW - galaxies: stellar content

KW - RCUK

KW - STFC

U2 - 10.1093/mnras/stw2719

DO - 10.1093/mnras/stw2719

M3 - Article

VL - 465

SP - 688

EP - 700

JO - MNRAS

JF - MNRAS

SN - 0035-8711

IS - 1

ER -

ID: 5268580