J/ApJ/852/99: Resource Record Summary

Resource Record Summary

Catalog Service:
Abundances of 3 metal-poor stars in Horologium I

Short name: J/ApJ/852/99 IVOA Identifier: ivo://CDS.VizieR/J/ApJ/852/99 DOI (Digital Object Identifier): 10.26093/cds/vizier.18520099 Publisher: CDSivo://CDS[Pub. ID] More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/852/99 VO Compliance: Level 2: This is a VO-compliant resource.	Status: active Registered: 2018 Nov 05 14:08:48Z
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Description

We present chemical abundance measurements of three stars in the ultrafaint dwarf galaxy Horologium I, a Milky Way satellite discovered by the Dark Energy Survey. Using high-resolution spectroscopic observations, we measure the metallicity of the three stars, as well as abundance ratios of several {alpha}-elements, iron-peak elements, and neutron-capture elements. The abundance pattern is relatively consistent among all three stars, which have a low average metallicity of [Fe/H]~-2.6 and are not {alpha}-enhanced ([{alpha}/Fe]~0.0). This result is unexpected when compared to other low-metallicity stars in the Galactic halo and other ultrafaint dwarfs and suggests the possibility of a different mechanism for the enrichment of Hor I compared to other satellites. We discuss possible scenarios that could lead to this observed nucleosynthetic signature, including extended star formation, enrichment by a Population III supernova, and or an association with the Large Magellanic Cloud.

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About the Resource Providers

This section describes who is responsible for this resource

Publisher: CDSivo://CDS[Pub. ID]

Creators:

Nagasawa D.Q.Marshall J.L.Li T.S.Hansen T.T.Simon J.D.Bernstein R.A.Balbinot E.Drlica-Wagner A.Pace A.B.Strigari L.E.Pellegrino C.M.DePoy D.L.Suntzeff N.B.Bechtol K.Walker A.R.Abbott T.M.C.Abdalla F.B.Allam S.Annis J.Benoit-Levy A.Bertin E.Brooks D.Carnero Rosell A.Carrasco Kind M.Carretero J.Cunha C.E.D'Andrea C.B.da Costa L.N.Davis C.Desai S.Doel P.Eifler T.F.Flaugher B.Fosalba P.Frieman J.Garcia-Bellido J.Gaztanaga E.Gerdes D.W.Gruen D.Gruendl R.A.Gschwend J.Gutierrez G.Hartley W.G.Honscheid K.James D.J.Jeltema T.Krause E.Kuehn K.Kuhlmann S.Kuropatkin N.March M.Miquel R.Nord B.Roodman A.Sanchez E.Santiago B.Scarpine V.Schindler R.Schubnell M.Sevilla-Noarbe I.Smith M.Smith R.C.Soares-Santos M.Sobreira F.Suchyta E.Tarle G.Thomas D.Tucker D.L.Wechsler R.H.Wolf R.C.Yanny B.

Contact Information:

X CDS support team
Email: cds-question at unistra.fr
Address: CDS
Observatoire de Strasbourg
11 rue de l'Universite
F-67000 Strasbourg
France

Status of This Resource

This section provides some status information: the resource version, availability, and relevant dates.

Version: n/a
Availability: This is an active resource.

This service provides only public data.

Relevant dates for this Resource:

Updated: 2019 Jan 28 04:54:41Z
Created: 2018 Nov 05 14:08:48Z

This resource was registered on: 2018 Nov 05 14:08:48Z
This resource description was last updated on: 2021 Oct 21 00:00:00Z

What This Resource is About

This section describes what the resource is, what it contains, and how it might be relevant.

Resource Class: CatalogService: This resource is a service that provides access to catalog data. You can extract data from the catalog by issuing a query, and the matching data is returned as a table.

Resource type keywords: Catalog	Subject keywords: Chemical abundances Galaxies Spectroscopy Chemically peculiar stars
Intended audience or use: Research: This resource provides information appropriate for supporting scientific research.
More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/852/99	Literature Reference: 2018ApJ...852...99N
Related Resources: Other Related Resources TAP VizieR generic service(IsServedBy) ivo://CDS.VizieR/TAP [Res. ID] Conesearch service(IsServedBy) J/AJ/128/1177 : Galactic stellar abundances (Venn+, 2004) ivo://CDS.VizieR/J/AJ/128/1177 [Res. ID]

	Data Coverage Information
	This section describes the data's coverage over the sky, frequency, and time.

	Rights and Usage Information
	This section describes the rights and usage information for this data. Rights:

Available Service Interfaces

	Custom Service
	This is service that does not comply with any IVOA standard but instead provides access to special capabilities specific to this resource. VO Compliance: Level 2: This is a VO-compliant resource. Available endpoints for this service interface: Interactive web page: http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/852/99

	Custom Service
	This is service that does not comply with any IVOA standard but instead provides access to special capabilities specific to this resource. VO Compliance: Level 2: This is a VO-compliant resource. Available endpoints for this service interface: URL-based interface: http://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/852/99

	Table Access Protocol - Auxiliary ServiceXX
	This is a standard IVOA service that takes as input an ADQL or PQL query and returns tabular data. VO Compliance: Level 2: This is a VO-compliant resource. Available endpoints for the standard interface: http://tapvizier.cds.unistra.fr/TAPVizieR/tap

Simple Cone SearchXXSearch Me

This is a standard IVOA service that takes as input a position in the sky and a radius and returns catalog records with positions within that radius.

VO Compliance: Level 2: This is a VO-compliant resource.
Description:

Cone search capability for table J/ApJ/852/99/stars (Dark Energy Survey (DES) astrometry and photometry, observing details and measured stellar parameters of 3 member stars of Hor I (tables 1, 2 and 4))

Available endpoints for the standard interface:

http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/852/99/stars?

Maximum search radius accepted: 180.0 degrees
Maximum number of matching records returned: 50000

This service supports the VERB input parameter:: Use VERB=1 to minimize the returned columns or VERB=3 to maximize.