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A distance of 13 Mpc resolves the claimed anomalies of the galaxy lacking dark matter
Indexado
WoS WOS:000474894100089
Scopus SCOPUS_ID:85071787424
DOI 10.1093/MNRAS/STZ771
Año 2019
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



The claimed detection of a diffuse galaxy lacking dark matter represents a possible challenge to our understanding of the properties of these galaxies and galaxy formation in general. The galaxy, already identified in photographic plates taken in the summer of 1976 at the UK 48- in Schmidt telescope, presents normal distance-independent properties (e.g. colour, velocity dispersion of its globular clusters). However, distance-dependent quantities are at odds with those of other similar galaxies, namely the luminosity function and sizes of its globular clusters, mass-to-light ratio, and dark matter content. Here we carry out a careful analysis of all extant data and show that they consistently indicate a much shorter distance (13 Mpc) than previously indicated (20 Mpc). With this revised distance, the galaxy appears to be a rather ordinary low surface brightness galaxy (R-e = 1.4 +/- 0.1 kpc; M-star = 6.0 +/- 3.6 x 10(7) M-circle dot) with plenty of room for dark matter (the fraction of dark matter inside the half-mass radius is >75 per cent and M-halo/M-star > 20) corresponding to a minimum halo mass >10(9) M-circle dot. At 13 Mpc, the luminosity and structural properties of the globular clusters around the object are the same as those found in other galaxies.

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Disciplinas de Investigación



WOS
Astronomy & Astrophysics
Scopus
Sin Disciplinas
SciELO
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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 Trujillo, Ignacio Hombre IAC - España
ULL - España
Instituto Astrofisico de Canarias - España
Universidad de La Laguna - España
2 Beasley, Michael A. Hombre IAC - España
ULL - España
Instituto Astrofisico de Canarias - España
Universidad de La Laguna - España
3 Borlaff, Alejandro S. Hombre IAC - España
ULL - España
Instituto Astrofisico de Canarias - España
Universidad de La Laguna - España
4 CARRASCO-DAMELE, ELEAZAR RODRIGO - Observatorio Gemini - Chile
Gemini ObservatorySouthern Operations Center - Chile
5 Di Cintio, Arianna Mujer IAC - España
ULL - España
Instituto Astrofisico de Canarias - España
Universidad de La Laguna - España
5 Cintio, Arianna Di Mujer Instituto Astrofisico de Canarias - España
Universidad de La Laguna - España
6 Filho, Mercedes Mujer Univ Lisbon - Portugal
Univ Porto - Portugal
Instituto Superior Técnico - Portugal
Universidade do Porto - Portugal
7 Monelli, M. Hombre IAC - España
ULL - España
Instituto Astrofisico de Canarias - España
Universidad de La Laguna - España
8 Montes, Mireia Mujer Univ New South Wales - Australia
University of New South Wales (UNSW) Australia - Australia
UNSW Sydney - Australia
9 ROMAN-SILVA, JAVIER IGNACIO Hombre IAC - España
ULL - España
Instituto Astrofisico de Canarias - España
Universidad de La Laguna - España
10 Ruiz Lara, T. Hombre IAC - España
ULL - España
Instituto Astrofisico de Canarias - España
Universidad de La Laguna - España
11 Almeida, Jorge Sánchez Hombre IAC - España
ULL - España
Instituto Astrofisico de Canarias - España
Universidad de La Laguna - España
12 Valls-Gabaud, D. Hombre Observ Paris - Francia
LERMA - Laboratoire d'Études du Rayonnement et de la Matière en Astrophysique et Atmosphères - Francia
L'Observatoire de Paris - Francia
13 Vazdekis, Alexandre Hombre IAC - España
ULL - España
Instituto Astrofisico de Canarias - España
Universidad de La Laguna - España

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

Citas Identificadas: 2.02 %
Citas No-identificadas: 97.98 %

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

Citas Identificadas: 2.02 %
Citas No-identificadas: 97.98 %

Financiamiento



Fuente
National Science Foundation
Fundação para a Ciência e a Tecnologia
Comisión Nacional de Investigación Científica y Tecnológica
Ministerio de Ciencia, Tecnología e Innovación Productiva
European Research Council
U.S. Department of Energy
National Research Council
Comisión Nacional de Investigación Científica y Tecnológica
ERC
National Aeronautics and Space Administration
Consejo Nacional de Innovacion, Ciencia y Tecnologia
Ministerio de Ciencia, Innovacion y Universidades
Max Planck Society
Alfred P. Sloan Foundation
Johns Hopkins University
New Mexico State University
Princeton University
University of Washington
Max-Planck-Gesellschaft
Fundação para a Ciência e a Tecnologia
University of Chicago
Ministry of Economy
Spanish Ministry of Economy and Competitiveness (MINECO)
European Union’s Horizon 2020
Gemini Observatory
Ministerio da Ciencia, Tecnologia e Inovacao
Fuel Cell Technologies Program
University of California, Los Angeles
European Union's Horizon 2020 research and innovation programme under Marie Sklodowska-Curie grant
Horizon 2020 Framework Programme
Japanese Monbukagakusho
ERC Advanced
Spanish Ministry of Economy
University of Pittsburgh
Japan Participation Group
Max-Planck-Institute for Astrophysics (MPA)
Institute for Advanced Study
Los Alamos National Laboratory
United States Naval Observatory
Fermilab
Max-Planck-Institute for Astronomy (MPIA)
Instituto Nacional de Ciência e Tecnologia para Excitotoxicidade e Neuroproteção
Association of Universities for Research in Astronomy, Inc.
Jet Propulsion Laboratory/California Institute of Technology
Immune Tolerance Network
Sloan Digital Sky Survey
'Fundacao para a Ciencia e Tecnologia' (FCT - Portugal)
Monbukagakusho (Japanese government) scholarship
Marie-Sklodowska-Curie Individual Fellowship grant
Severo Ochoa Excellence program
Ministerio de Ciencia, Tecnología e Innovación Productiva
Ministério da Ciência, Tecnologia e Inovação
National Research Council (Canada)
NSF on
Ministério da Ciência, Tecnologia e Ensino Superior
Gemini Observatory Archive
Instituto Nacional de Ciência e Tecnologia para Excitotoxicidade e Neuroproteção

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Agradecimientos



Agradecimiento
This work was partly done using GNU Astronomy Utilities (GNUASTRO) version 0.5. GNUASTRO is a generic package for astronomical data manipulation and analysis that was initially created and developed for research funded by the Monbukagakusho (Japanese government) scholarship and ERC advanced grant 339659-MUSICOS.
Funding for the Sloan Digital Sky Survey (SDSS) has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Aeronautics and Space Administration, the National Science Foundation, the U.S. Department of Energy, the Japanese Monbuka-gakusho, and the Max Planck Society. The SDSS Web site is http://www.sdss.org/. The SDSS is managed by the Astrophysical Research Consortium (ARC) for the Participating Institutions. The Participating Institutions are The University of Chicago, Fermilab, the Institute for Advanced Study, the Japan Participation Group, The Johns Hopkins University, Los Alamos National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for Astrophysics (MPA), New Mexico State University, University of Pittsburgh, Princeton University, the United States Naval Observatory, and the University of Washing- ton. GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in April 2003. We gratefully acknowledge NASA’s support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d’Etudes Spatiales (CNES) of France and the Korean Ministry of Science and Technology. This publication makes use of data products from the Wide-field Infrared Survey Explorer (WISE), which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration.

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