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| 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
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.
| 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 |
| 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 |
| 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. |