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Open superclusters II. Discovery of an inactive supercluster including a new star cluster in the solar neighborhood.

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Title: Open superclusters II. Discovery of an inactive supercluster including a new star cluster in the solar neighborhood.
Authors: Casado, Juan1 (AUTHOR) jcasadoo@hotmail.com, Hendy, Yasser2 (AUTHOR), Faltov, Nikola3 (AUTHOR), Kovaleva, Dana4 (AUTHOR)
Source: Advances in Space Research. Jul2026, Vol. 78 Issue 2, p1740-1752. 13p.
Subjects: Star clusters, Kinematics, Star formation, Astronomical observations
Abstract: The number of known star clusters, associations, and moving groups in the vicinity of the Sun has increased significantly due to the use of Gaia data. We investigated the existence and properties of open superclusters (OSC) within 500 pc of the Sun, with a particular focus on a newly identified OSC, designated HC8. Using advanced Gaia-derived astrometric data and star cluster catalogs, we identify and analyze member stars of various clusters, deriving key parameters such as ages, distances, extinctions, and kinematic properties. Our findings reveal that HC8, a previously unrecognized OSC, encompasses several young clusters, including the newly discovered cluster Duvia 1. We provide a detailed examination of HC8's star formation history and its spatial and kinematic characteristics. This study contributes to the growing body of evidence supporting the existence of highly populated primordial groups and enhances our understanding of the formation and evolution of star clusters in the Galaxy. [ABSTRACT FROM AUTHOR]
Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 194701161
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Open superclusters II. Discovery of an inactive supercluster including a new star cluster in the solar neighborhood.
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  Data: <searchLink fieldCode="AR" term="%22Casado%2C+Juan%22">Casado, Juan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jcasadoo@hotmail.com</i><br /><searchLink fieldCode="AR" term="%22Hendy%2C+Yasser%22">Hendy, Yasser</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Faltov%2C+Nikola%22">Faltov, Nikola</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kovaleva%2C+Dana%22">Kovaleva, Dana</searchLink><relatesTo>4</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Advances+in+Space+Research%22">Advances in Space Research</searchLink>. Jul2026, Vol. 78 Issue 2, p1740-1752. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Star+clusters%22">Star clusters</searchLink><br /><searchLink fieldCode="DE" term="%22Kinematics%22">Kinematics</searchLink><br /><searchLink fieldCode="DE" term="%22Star+formation%22">Star formation</searchLink><br /><searchLink fieldCode="DE" term="%22Astronomical+observations%22">Astronomical observations</searchLink>
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  Data: The number of known star clusters, associations, and moving groups in the vicinity of the Sun has increased significantly due to the use of Gaia data. We investigated the existence and properties of open superclusters (OSC) within 500 pc of the Sun, with a particular focus on a newly identified OSC, designated HC8. Using advanced Gaia-derived astrometric data and star cluster catalogs, we identify and analyze member stars of various clusters, deriving key parameters such as ages, distances, extinctions, and kinematic properties. Our findings reveal that HC8, a previously unrecognized OSC, encompasses several young clusters, including the newly discovered cluster Duvia 1. We provide a detailed examination of HC8's star formation history and its spatial and kinematic characteristics. This study contributes to the growing body of evidence supporting the existence of highly populated primordial groups and enhances our understanding of the formation and evolution of star clusters in the Galaxy. [ABSTRACT FROM AUTHOR]
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  Group: Ab
  Data: <i>Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.asr.2026.04.088
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      – Code: eng
        Text: English
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        PageCount: 13
        StartPage: 1740
    Subjects:
      – SubjectFull: Star clusters
        Type: general
      – SubjectFull: Kinematics
        Type: general
      – SubjectFull: Star formation
        Type: general
      – SubjectFull: Astronomical observations
        Type: general
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      – TitleFull: Open superclusters II. Discovery of an inactive supercluster including a new star cluster in the solar neighborhood.
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              Text: Jul2026
              Type: published
              Y: 2026
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