The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3)
- Autores
- Kunder, Andrea; Prudil, Zdenek; Covey, Kevin R.; Hughes, Joanne; Joyce, Meridith; Simion, Iulia T.; Rebekah Kuss; Campos, Carlos; Johnson, Christian I.; Pilachowski, Catherine A.; Larson, Kristen A.; Koch Hansen, Andreas J.; Marchetti, Tommaso; Rich, Michael R.; Butler, Evan; Clarkson, William I.; Rivet, Michael; Devine, Kathryn; Vivas, A. Katherina; Perren, Gabriel Ignacio; Soto, Mario; Silva, Erika
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Milky Way Bulge extra-tidal star survey is a spectroscopic survey with the goal of identifying stripped globular cluster stars from inner Galaxy clusters. In this way, an indication of the fraction of metal-poor bulge stars that originated from globular clusters can be determined. We observed and analyzed stars in and around BH 261, an understudied globular cluster in the bulge. From seven giants within the tidal radius of the cluster, we measured an average heliocentric radial velocity of 〈RV〉 = −61 ± 2.6 km s−1 with a radial velocity dispersion of 〈σ〉 = 6.1 ± 1.9 km s−1. The large velocity dispersion may have arisen from tidal heating in the cluster´s orbit about the Galactic center, or because BH 261 has a high dynamical mass as well as a high mass-to-light ratio. From spectra of five giants, we measure an average metallicity of 〈[Fe/H]〉 = −1.1 ± 0.2 dex. We also spectroscopically confirm an RR Lyrae star in BH 261, which yields a distance to the cluster of 7.1 ± 0.4 kpc. Stars with 3D velocities and metallicities consistent with BH 261 reaching to ∼05 from the cluster are identified. A handful of these stars are also consistent with the spatial distribution of potential debris from models focusing on the most recent disruption of the cluster.
Fil: Kunder, Andrea. Saint Martinʼs University; Estados Unidos
Fil: Prudil, Zdenek. European Southern Observatory Chile.; Chile
Fil: Covey, Kevin R.. Western Washington University; Estados Unidos
Fil: Hughes, Joanne. Seattle University; Estados Unidos
Fil: Joyce, Meridith. Konkoly Observatory; Hungría
Fil: Simion, Iulia T.. Shanghai Key Lab For Astrophysics; China
Fil: Rebekah Kuss. Oregon State University; Estados Unidos
Fil: Campos, Carlos. Saint Martin's University; Estados Unidos
Fil: Johnson, Christian I.. Space Telescope Science Institute; Estados Unidos
Fil: Pilachowski, Catherine A.. Indiana University; Estados Unidos
Fil: Larson, Kristen A.. Western Washington University.; Estados Unidos
Fil: Koch Hansen, Andreas J.. Astronomisches Rechen-Institut; Alemania
Fil: Marchetti, Tommaso. European Southern Observatory; Alemania
Fil: Rich, Michael R.. University of California at Los Angeles; Estados Unidos
Fil: Butler, Evan. University of Washington; Estados Unidos
Fil: Clarkson, William I.. University of Michigan-Dearborn; Estados Unidos
Fil: Rivet, Michael. Saint Martinʼs University; Estados Unidos
Fil: Devine, Kathryn. The College of Idaho; Estados Unidos
Fil: Vivas, A. Katherina. Cerro Tololo Inter-American Observatory; Chile
Fil: Perren, Gabriel Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Soto, Mario. Instituto de Astronomía y Ciencias Planetarias; Chile
Fil: Silva, Erika. Western Washington University; Estados Unidos - Materia
-
STELLAR POPULATIONS
GALACTIC ARCHAEOLOGY
MILKY WAY DYNAMICS
GALACTIC BULGE - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/236734
Ver los metadatos del registro completo
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The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3)Kunder, AndreaPrudil, ZdenekCovey, Kevin R.Hughes, JoanneJoyce, MeridithSimion, Iulia T.Rebekah KussCampos, CarlosJohnson, Christian I.Pilachowski, Catherine A.Larson, Kristen A.Koch Hansen, Andreas J.Marchetti, TommasoRich, Michael R.Butler, EvanClarkson, William I.Rivet, MichaelDevine, KathrynVivas, A. KatherinaPerren, Gabriel IgnacioSoto, MarioSilva, ErikaSTELLAR POPULATIONSGALACTIC ARCHAEOLOGYMILKY WAY DYNAMICSGALACTIC BULGEhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The Milky Way Bulge extra-tidal star survey is a spectroscopic survey with the goal of identifying stripped globular cluster stars from inner Galaxy clusters. In this way, an indication of the fraction of metal-poor bulge stars that originated from globular clusters can be determined. We observed and analyzed stars in and around BH 261, an understudied globular cluster in the bulge. From seven giants within the tidal radius of the cluster, we measured an average heliocentric radial velocity of 〈RV〉 = −61 ± 2.6 km s−1 with a radial velocity dispersion of 〈σ〉 = 6.1 ± 1.9 km s−1. The large velocity dispersion may have arisen from tidal heating in the cluster´s orbit about the Galactic center, or because BH 261 has a high dynamical mass as well as a high mass-to-light ratio. From spectra of five giants, we measure an average metallicity of 〈[Fe/H]〉 = −1.1 ± 0.2 dex. We also spectroscopically confirm an RR Lyrae star in BH 261, which yields a distance to the cluster of 7.1 ± 0.4 kpc. Stars with 3D velocities and metallicities consistent with BH 261 reaching to ∼05 from the cluster are identified. A handful of these stars are also consistent with the spatial distribution of potential debris from models focusing on the most recent disruption of the cluster.Fil: Kunder, Andrea. Saint Martinʼs University; Estados UnidosFil: Prudil, Zdenek. European Southern Observatory Chile.; ChileFil: Covey, Kevin R.. Western Washington University; Estados UnidosFil: Hughes, Joanne. Seattle University; Estados UnidosFil: Joyce, Meridith. Konkoly Observatory; HungríaFil: Simion, Iulia T.. Shanghai Key Lab For Astrophysics; ChinaFil: Rebekah Kuss. Oregon State University; Estados UnidosFil: Campos, Carlos. Saint Martin's University; Estados UnidosFil: Johnson, Christian I.. Space Telescope Science Institute; Estados UnidosFil: Pilachowski, Catherine A.. Indiana University; Estados UnidosFil: Larson, Kristen A.. Western Washington University.; Estados UnidosFil: Koch Hansen, Andreas J.. Astronomisches Rechen-Institut; AlemaniaFil: Marchetti, Tommaso. European Southern Observatory; AlemaniaFil: Rich, Michael R.. University of California at Los Angeles; Estados UnidosFil: Butler, Evan. University of Washington; Estados UnidosFil: Clarkson, William I.. University of Michigan-Dearborn; Estados UnidosFil: Rivet, Michael. Saint Martinʼs University; Estados UnidosFil: Devine, Kathryn. The College of Idaho; Estados UnidosFil: Vivas, A. Katherina. Cerro Tololo Inter-American Observatory; ChileFil: Perren, Gabriel Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Soto, Mario. Instituto de Astronomía y Ciencias Planetarias; ChileFil: Silva, Erika. Western Washington University; Estados UnidosIOP Publishing2023-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/236734Kunder, Andrea; Prudil, Zdenek; Covey, Kevin R.; Hughes, Joanne; Joyce, Meridith; et al.; The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3); IOP Publishing; Astronomical Journal; 167; 1; 12-2023; 1-150004-6256CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-3881/ad0cfcinfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-3881/ad0cfcinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:58Zoai:ri.conicet.gov.ar:11336/236734instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:47:59.248CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3) |
| title |
The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3) |
| spellingShingle |
The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3) Kunder, Andrea STELLAR POPULATIONS GALACTIC ARCHAEOLOGY MILKY WAY DYNAMICS GALACTIC BULGE |
| title_short |
The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3) |
| title_full |
The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3) |
| title_fullStr |
The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3) |
| title_full_unstemmed |
The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3) |
| title_sort |
The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3) |
| dc.creator.none.fl_str_mv |
Kunder, Andrea Prudil, Zdenek Covey, Kevin R. Hughes, Joanne Joyce, Meridith Simion, Iulia T. Rebekah Kuss Campos, Carlos Johnson, Christian I. Pilachowski, Catherine A. Larson, Kristen A. Koch Hansen, Andreas J. Marchetti, Tommaso Rich, Michael R. Butler, Evan Clarkson, William I. Rivet, Michael Devine, Kathryn Vivas, A. Katherina Perren, Gabriel Ignacio Soto, Mario Silva, Erika |
| author |
Kunder, Andrea |
| author_facet |
Kunder, Andrea Prudil, Zdenek Covey, Kevin R. Hughes, Joanne Joyce, Meridith Simion, Iulia T. Rebekah Kuss Campos, Carlos Johnson, Christian I. Pilachowski, Catherine A. Larson, Kristen A. Koch Hansen, Andreas J. Marchetti, Tommaso Rich, Michael R. Butler, Evan Clarkson, William I. Rivet, Michael Devine, Kathryn Vivas, A. Katherina Perren, Gabriel Ignacio Soto, Mario Silva, Erika |
| author_role |
author |
| author2 |
Prudil, Zdenek Covey, Kevin R. Hughes, Joanne Joyce, Meridith Simion, Iulia T. Rebekah Kuss Campos, Carlos Johnson, Christian I. Pilachowski, Catherine A. Larson, Kristen A. Koch Hansen, Andreas J. Marchetti, Tommaso Rich, Michael R. Butler, Evan Clarkson, William I. Rivet, Michael Devine, Kathryn Vivas, A. Katherina Perren, Gabriel Ignacio Soto, Mario Silva, Erika |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
STELLAR POPULATIONS GALACTIC ARCHAEOLOGY MILKY WAY DYNAMICS GALACTIC BULGE |
| topic |
STELLAR POPULATIONS GALACTIC ARCHAEOLOGY MILKY WAY DYNAMICS GALACTIC BULGE |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
The Milky Way Bulge extra-tidal star survey is a spectroscopic survey with the goal of identifying stripped globular cluster stars from inner Galaxy clusters. In this way, an indication of the fraction of metal-poor bulge stars that originated from globular clusters can be determined. We observed and analyzed stars in and around BH 261, an understudied globular cluster in the bulge. From seven giants within the tidal radius of the cluster, we measured an average heliocentric radial velocity of 〈RV〉 = −61 ± 2.6 km s−1 with a radial velocity dispersion of 〈σ〉 = 6.1 ± 1.9 km s−1. The large velocity dispersion may have arisen from tidal heating in the cluster´s orbit about the Galactic center, or because BH 261 has a high dynamical mass as well as a high mass-to-light ratio. From spectra of five giants, we measure an average metallicity of 〈[Fe/H]〉 = −1.1 ± 0.2 dex. We also spectroscopically confirm an RR Lyrae star in BH 261, which yields a distance to the cluster of 7.1 ± 0.4 kpc. Stars with 3D velocities and metallicities consistent with BH 261 reaching to ∼05 from the cluster are identified. A handful of these stars are also consistent with the spatial distribution of potential debris from models focusing on the most recent disruption of the cluster. Fil: Kunder, Andrea. Saint Martinʼs University; Estados Unidos Fil: Prudil, Zdenek. European Southern Observatory Chile.; Chile Fil: Covey, Kevin R.. Western Washington University; Estados Unidos Fil: Hughes, Joanne. Seattle University; Estados Unidos Fil: Joyce, Meridith. Konkoly Observatory; Hungría Fil: Simion, Iulia T.. Shanghai Key Lab For Astrophysics; China Fil: Rebekah Kuss. Oregon State University; Estados Unidos Fil: Campos, Carlos. Saint Martin's University; Estados Unidos Fil: Johnson, Christian I.. Space Telescope Science Institute; Estados Unidos Fil: Pilachowski, Catherine A.. Indiana University; Estados Unidos Fil: Larson, Kristen A.. Western Washington University.; Estados Unidos Fil: Koch Hansen, Andreas J.. Astronomisches Rechen-Institut; Alemania Fil: Marchetti, Tommaso. European Southern Observatory; Alemania Fil: Rich, Michael R.. University of California at Los Angeles; Estados Unidos Fil: Butler, Evan. University of Washington; Estados Unidos Fil: Clarkson, William I.. University of Michigan-Dearborn; Estados Unidos Fil: Rivet, Michael. Saint Martinʼs University; Estados Unidos Fil: Devine, Kathryn. The College of Idaho; Estados Unidos Fil: Vivas, A. Katherina. Cerro Tololo Inter-American Observatory; Chile Fil: Perren, Gabriel Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina Fil: Soto, Mario. Instituto de Astronomía y Ciencias Planetarias; Chile Fil: Silva, Erika. Western Washington University; Estados Unidos |
| description |
The Milky Way Bulge extra-tidal star survey is a spectroscopic survey with the goal of identifying stripped globular cluster stars from inner Galaxy clusters. In this way, an indication of the fraction of metal-poor bulge stars that originated from globular clusters can be determined. We observed and analyzed stars in and around BH 261, an understudied globular cluster in the bulge. From seven giants within the tidal radius of the cluster, we measured an average heliocentric radial velocity of 〈RV〉 = −61 ± 2.6 km s−1 with a radial velocity dispersion of 〈σ〉 = 6.1 ± 1.9 km s−1. The large velocity dispersion may have arisen from tidal heating in the cluster´s orbit about the Galactic center, or because BH 261 has a high dynamical mass as well as a high mass-to-light ratio. From spectra of five giants, we measure an average metallicity of 〈[Fe/H]〉 = −1.1 ± 0.2 dex. We also spectroscopically confirm an RR Lyrae star in BH 261, which yields a distance to the cluster of 7.1 ± 0.4 kpc. Stars with 3D velocities and metallicities consistent with BH 261 reaching to ∼05 from the cluster are identified. A handful of these stars are also consistent with the spatial distribution of potential debris from models focusing on the most recent disruption of the cluster. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023-12 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/236734 Kunder, Andrea; Prudil, Zdenek; Covey, Kevin R.; Hughes, Joanne; Joyce, Meridith; et al.; The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3); IOP Publishing; Astronomical Journal; 167; 1; 12-2023; 1-15 0004-6256 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/236734 |
| identifier_str_mv |
Kunder, Andrea; Prudil, Zdenek; Covey, Kevin R.; Hughes, Joanne; Joyce, Meridith; et al.; The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3); IOP Publishing; Astronomical Journal; 167; 1; 12-2023; 1-15 0004-6256 CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-3881/ad0cfc info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-3881/ad0cfc |
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openAccess |
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application/pdf application/pdf |
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IOP Publishing |
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IOP Publishing |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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