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RR Lyrae Stars Belonging to the Candidate Globular Cluster Patchick 99
Indexado
WoS WOS:001175716100001
Scopus SCOPUS_ID:85186670868
DOI 10.3847/2041-8213/AD20E8
Año 2024
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Patchick 99 is a candidate globular cluster located in the direction of the Galactic bulge, with a proper motion almost identical to the field and extreme field star contamination. A recent analysis suggests it is a low-luminosity globular cluster with a population of RR Lyrae stars. We present new spectra of stars in and around Patchick 99, targeting specifically the three RR Lyrae stars associated with the cluster as well as the other RR Lyrae stars in the field. A sample of 53 giant stars selected from proper motions and a position on the color-magnitude diagram are also observed. The three RR Lyrae stars associated with the cluster have similar radial velocities and distances, and two of the targeted giants also have radial velocities in this velocity regime and [Fe/H] metallicities that are slightly more metal-poor than the field. Therefore, if Patchick 99 is a bona fide globular cluster, it would have a radial velocity of -92 +/- 10 km s-1, a distance of 6.7 +/- 0.4 kpc (as determined from the RR Lyrae stars), and an orbit that confines it to the inner bulge.

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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 Butler, Evan - UNIV WASHINGTON - Estados Unidos
St Martins Univ - Estados Unidos
University of Washington - Estados Unidos
Saint Martin's University - Estados Unidos
2 Kunder, Andrea Mujer St Martins Univ - Estados Unidos
Saint Martin's University - Estados Unidos
3 Prudil, Z. - ESO - Alemania
European Southern Observ - Alemania
Observatorio Europeo Austral - Alemania
4 Covey, Kevin R. - WESTERN WASHINGTON UNIV - Estados Unidos
5 Ball, Macy - St Martins Univ - Estados Unidos
Saint Martin's University - Estados Unidos
6 Campos, Carlos - St Martins Univ - Estados Unidos
Saint Martin's University - Estados Unidos
7 Gollnick, Kaylen - WESTERN WASHINGTON UNIV - Estados Unidos
Western Washington University - Estados Unidos
8 Olivares Carvajal, J. - Pontificia Universidad Católica de Chile - Chile
Instituto Milenio de Astrofísica - Chile
8 Carvajal, Julio Olivares - Pontificia Universidad Católica de Chile - Chile
Instituto Milenio de Astrofísica - Chile
9 Hughes, Joanne - Seattle Univ - Estados Unidos
Seattle University - Estados Unidos
10 Devine, Kathryn Mujer Coll Idaho - Estados Unidos
Albertson College of Idaho - Estados Unidos
11 Johnson, Christian I. Hombre Space Telescope Sci Inst - Estados Unidos
Space Telescope Science Institute - Estados Unidos
12 Vivas, A. Katherina Mujer Observatorio Interamericano del Cerro Tololo - Chile
Cerro Tololo Inter American Observatory - Chile
13 Rich, R. Michael Hombre Dept Phys & Astron - Estados Unidos
University of California, Los Angeles - Estados Unidos
14 Joyce, Meridith - HUN REN Res Ctr Astron & Earth Sci - Hungría
MTA Ctr Excellence - Hungría
Konkoly Observatory - Hungría
Research Centre For Astronomy and Earth Sciences - Hungría
15 Simion, Iulia T. Mujer Shanghai Normal Univ - China
Shanghai Normal University - China
16 Marchetti, Tommaso Hombre ESO - Alemania
European Southern Observ - Alemania
Observatorio Europeo Austral - Alemania
17 Koch, A. Hombre Heidelberg Univ - Alemania
Astronomisches Rechen-Institut - Alemania
18 Clarkson, W. I. Hombre UNIV MICHIGAN - Estados Unidos
University of Michigan-Dearborn - Estados Unidos
19 Kuss, Rebekah - St Martins Univ - Estados Unidos
Oregon State Univ - Estados Unidos
Saint Martin's University - Estados Unidos
Oregon State University - Estados Unidos

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Financiamiento



Fuente
National Science Foundation
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Conselho Nacional de Desenvolvimento Científico e Tecnológico
European Union
Deutsche Forschungsgemeinschaft
Financiadora de Estudos e Projetos
Ministry of Education and Science of Ukraine
U.S. Department of Energy
Ohio State University
Alfred P. Sloan Foundation
University of Utah
Science and Technology Facilities Council of the United Kingdom
Office of Science
Heising-Simons Foundation
Higher Education Funding Council for England
Ministerio da Ciencia, Tecnologia e Inovacao
Collaborating Institutions in the Dark Energy Survey
Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University
National Centre for Supercomputing Applications
Kavli Institute for Cosmological Physics, University of Chicago
European Commission's Widening Fellowship
M.J. Murdock Charitable Trust's support through its RAISE
National Science Foundation (NSF)https://doi.org/10.13039/100000001

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Agradecimientos



Agradecimiento
A.M.K. acknowledges support from grant AST-2009836 from the National Science Foundation. A.M.K., K.R.C., J.H., K.D. acknowledge the M.J. Murdock Charitable Trust's support through its RAISE (Research Across Institutions for Scientific Empowerment) program. This work was made possible through the Preparing for Astrophysics with LSST Program, supported by the Heising-Simons Foundation and managed by Las Cumbres Observatory. M.J. gratefully acknowledges the funding of MATISSE: Measuring Ages Through Isochrones, Seismology, and Stellar Evolution, awarded through the European Commission's Widening Fellowship. This project has received funding from the European Union's Horizon 2020 research and innovation program.
This project used data obtained with the Dark Energy Camera (DECam), which was constructed by the Dark Energy Survey (DES) collaboration. Funding for the DES Projects has been provided by the US Department of Energy, the US National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute for Cosmological Physics at the University of Chicago, Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico and the Ministério da Ciência, Tecnologia e Inovação, the Deutsche Forschungsgemeinschaft, and the Collaborating Institutions in the Dark Energy Survey.

Muestra la fuente de financiamiento declarada en la publicación.