Dataciencia

Colección SciELO Chile

The half-mass radius of MaNGA galaxies: effect of IMF gradients

Indexado

WoS	WOS:000921145500022
Scopus	SCOPUS_ID:85147764528

DOI

10.1093/MNRAS/STAC3361

Año

2022

Tipo

artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras

Abstract

Gradients in the stellar populations (SP) of galaxies - e.g. in age, metallicity, stellar initial mass function (IMF) - can result in gradients in the stellar-mass-to-light ratio, M-*/L. Such gradients imply that the distribution of the stellar mass and light is different. For old SPs, e.g. in early-type galaxies at z similar to 0, the M-*/L gradients are weak if driven by variations in age and metallicity, but significantly larger if driven by the IMF. A gradient which has larger M-*/L in the centre increases the estimated total stellar mass (M-*) and reduces the scale which contains half this mass (Re,(*)), compared to when the gradient is ignored. For the IMF gradients inferred from fitting MILES simple SP models to the H beta, < Fe >, [MgFe], and TiO2SDSS absorption lines measured in spatially resolved spectra of early-type galaxies in the MaNGA survey, the fractional change in Re,(*) can be significantly larger than that in M-*, especially when the light is more centrally concentrated. The Re,(*)-M-* correlation which results from accounting for IMF gradients is offset to smaller sizes by 0.3 dex compared to when these gradients are ignored. Comparisons with 'quiescent' galaxies at higher z must account for evolution in SP gradients (especially age and IMF) and in the light profile before drawing conclusions about how Re,(*) and M-* evolve. The implied merging between higher z and the present is less contrived if Re,(*)/R-e at z similar to 0 is closer to our IMF-driven gradient calibration than to unity.

Revista

Revista	ISSN
Monthly Notices Of The Royal Astronomical Society	0035-8711

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Disciplinas de Investigación

WOS
Astronomy & Astrophysics

Scopus
Sin Disciplinas

SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional

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Autores - Afiliación

Ord.	Autor	Género	Institución - País
1	Baran, Andrzej S.	Hombre	UNIV PENN - Estados Unidos University of Pennsylvania - Estados Unidos
2	Sheth, R. K.	Hombre	UNIV PENN - Estados Unidos University of Pennsylvania - Estados Unidos
3	Sanchez, H. Dominguez	Mujer	CSIC - España CSIC - Instituto de Ciencias del Espacio (ICE) - España
4	Margalef-Bentabol, Berta	Mujer	UNIV PENN - Estados Unidos University of Pennsylvania - Estados Unidos
5	Bizyaev, Dmitry	Hombre	Apache Point Observ & New Mexico State Univ - Estados Unidos Moscow MV Lomonosov State Univ - Rusia Apache Point Observatory - Estados Unidos Lomonosov Moscow State University - Rusia
6	LANE, RICHARD READE	Hombre	Universidad Bernardo O'Higgins - Chile

Muestra la afiliación y género (detectado) para los co-autores de la publicación.

Origen de Citas Identificadas

Muestra la distribución de países cuyos autores citan a la publicación consultada.

Citas identificadas: Las citas provienen de documentos incluidos en la base de datos de DATACIENCIA

Citas Identificadas: 16.67 %
Citas No-identificadas: 83.33 %

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Citas identificadas: Las citas provienen de documentos incluidos en la base de datos de DATACIENCIA

Citas Identificadas: 16.67 %
Citas No-identificadas: 83.33 %

Financiamiento

Fuente
National Science Foundation
NSF
Ohio State University
Vanderbilt University
University of Tokyo
Yale University
Alfred P. Sloan Foundation
U.S. Department of Energy Office of Science
Carnegie Mellon University
French Participation Group
Instituto de Astrofisica de Canarias
Johns Hopkins University
Lawrence Berkeley National Laboratory
Pennsylvania State University
University of Portsmouth
University of Utah
University of Virginia
University of Washington
University of Wisconsin-Madison
Office of Science
Max-Planck-Institut fur Extraterrestrische Physik
Center for High-Performance Computing at the University of Utah
Carnegie Institution for Science
Chilean Participation Group
Harvard-Smithsonian Center for Astrophysics
Max-Planck-Institut fur Astrophysik (MPA Garching)
Max-Planck-Institut fur Extraterrestrische Physik (MPE)
University of Notre Dame
University of Colorado Boulder
University of Oxford
Ministerio da Ciencia, Tecnologia e Inovacao
National Astronomical Observatories, Chinese Academy of Sciences
Shanghai Astronomical Observatory, United Kingdom Participation Group
Maritime and Port Authority of Singapore
Leibniz-Institut für Astrophysik Potsdam
Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo
New Mexico State University, New York University
Max-Planck-Institut fur Astronomie
MPIA Heidelberg
IPMU
American Institute of Physics
Kavli Institute for the Physics and Mathematics of the Universe
Max-Planck-Institut fur Astrophysik
Universidad Nacional Autónoma de México, University of Arizona
Observatório Nacional

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos

Agradecimiento
We are grateful to K. Westfall for clarifications about changes in the MaNGA data base between DR15 and DR17, C. Conroy for discussion on SSP models, and F. Shankar and the anonymous referee for detailed comments on the manuscript. This work was supported in part by NSF grant AST-1816330. Funding for the Sloan Digital Sky Survey IV has been provided by the Alfred P. Sloan Foundation, the U.S. Department of Energy Office of Science, and the Participating Institutions. SDSS acknowledges support and resources from the Center for High-Performance Computing at the University of Utah. The SDSS web site is www.sdss.org. SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS Collaboration including the Brazilian Participation Group, the Carnegie Institution for Science, Carnegie Mellon University, the Chilean Participation Group, the French Participation Group, Harvard-Smithsonian Center for Astrophysics, Instituto de Astrofisica de Canarias, The Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo, Lawrence Berkeley National Laboratory, Leibniz Institut fuer Astrophysik Potsdam (AIP), Max-Planck-Institut fuer Astronomie (MPIA Heidelberg), Max-Planck-Institut fuer Astrophysik (MPA Garching), Max-Planck-Institut fuer Extraterrestrische Physik (MPE), National Astronomical Observatories of China, New Mexico State University, New York University, University of Notre Dame, Observatorio Nacional / MCTI, The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, United Kingdom Participation Group, Universidad Nacional Autonoma de Mexico, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University, and Yale University.
We are grateful to K. Westfall for clarifications about changes in the MaNGA data base between DR15 and DR17, C. Conroy for discussion on SSP models, and F. Shankar and the anonymous referee for detailed comments on the manuscript. This work was supported in part by NSF grant AST-1816330. Funding for the Sloan Digital Sky Survey IV has been provided by the Alfred P. Sloan Foundation, the U.S. Department of Energy Office of Science, and the Participating Institutions. SDSS acknowledges support and resources from the Center for High-Performance Computing at the University of Utah. The SDSS web site is www.sdss.org. SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS Collaboration including the Brazilian Participation Group, the Carnegie Institution for Science, Carnegie Mellon University, the Chilean Participation Group, the French Participation Group, Harvard-Smithsonian Center for Astrophysics, Instituto de Astrofísica de Canarias, The Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo, Lawrence Berkeley National Laboratory, Leibniz Institut für Astrophysik Potsdam (AIP), Max-Planck-Institut für Astronomie (MPIA Heidelberg), Max-Planck-Institut für Astrophysik (MPA Garching), Max-Planck-Institut für Extraterrestrische Physik (MPE), National Astronomical Observatories of China, New Mexico State University, New York University, University of Notre Dame, Observatório Nacional / MCTI, The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, United Kingdom Participation Group, Universidad Nacional Autónoma de México, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University, and Yale University.

Agradecimiento

We are grateful to K. Westfall for clarifications about changes in the MaNGA data base between DR15 and DR17, C. Conroy for discussion on SSP models, and F. Shankar and the anonymous referee for detailed comments on the manuscript. This work was supported in part by NSF grant AST-1816330. Funding for the Sloan Digital Sky Survey IV has been provided by the Alfred P. Sloan Foundation, the U.S. Department of Energy Office of Science, and the Participating Institutions. SDSS acknowledges support and resources from the Center for High-Performance Computing at the University of Utah. The SDSS web site is www.sdss.org. SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS Collaboration including the Brazilian Participation Group, the Carnegie Institution for Science, Carnegie Mellon University, the Chilean Participation Group, the French Participation Group, Harvard-Smithsonian Center for Astrophysics, Instituto de Astrofisica de Canarias, The Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo, Lawrence Berkeley National Laboratory, Leibniz Institut fuer Astrophysik Potsdam (AIP), Max-Planck-Institut fuer Astronomie (MPIA Heidelberg), Max-Planck-Institut fuer Astrophysik (MPA Garching), Max-Planck-Institut fuer Extraterrestrische Physik (MPE), National Astronomical Observatories of China, New Mexico State University, New York University, University of Notre Dame, Observatorio Nacional / MCTI, The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, United Kingdom Participation Group, Universidad Nacional Autonoma de Mexico, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University, and Yale University.

We are grateful to K. Westfall for clarifications about changes in the MaNGA data base between DR15 and DR17, C. Conroy for discussion on SSP models, and F. Shankar and the anonymous referee for detailed comments on the manuscript. This work was supported in part by NSF grant AST-1816330. Funding for the Sloan Digital Sky Survey IV has been provided by the Alfred P. Sloan Foundation, the U.S. Department of Energy Office of Science, and the Participating Institutions. SDSS acknowledges support and resources from the Center for High-Performance Computing at the University of Utah. The SDSS web site is www.sdss.org. SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS Collaboration including the Brazilian Participation Group, the Carnegie Institution for Science, Carnegie Mellon University, the Chilean Participation Group, the French Participation Group, Harvard-Smithsonian Center for Astrophysics, Instituto de Astrofísica de Canarias, The Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU) / University of Tokyo, Lawrence Berkeley National Laboratory, Leibniz Institut für Astrophysik Potsdam (AIP), Max-Planck-Institut für Astronomie (MPIA Heidelberg), Max-Planck-Institut für Astrophysik (MPA Garching), Max-Planck-Institut für Extraterrestrische Physik (MPE), National Astronomical Observatories of China, New Mexico State University, New York University, University of Notre Dame, Observatório Nacional / MCTI, The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, United Kingdom Participation Group, Universidad Nacional Autónoma de México, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University, and Yale University.

Muestra la fuente de financiamiento declarada en la publicación.

Abstract

Revista

Métricas Externas

Disciplinas de Investigación

Colaboración Institucional

Autores - Afiliación

Origen de Citas Identificadas

Financiamiento

Agradecimientos

Departamento Gestión de Conocimiento, Monitoreo y Prospección