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Fractured but Whole : = Towards Understanding the Smallest Substructure of the Milky Way.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Fractured but Whole :/
其他題名:	Towards Understanding the Smallest Substructure of the Milky Way.
作者:	Shank, Derek Alan.
面頁冊數:	1 online resource (633 pages)
附註:	Source: Dissertations Abstracts International, Volume: 83-11, Section: B.
Contained By:	Dissertations Abstracts International83-11B.
標題:	Astrophysics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29067007click for full text (PQDT)
ISBN:	9798438749387

Fractured but Whole : = Towards Understanding the Smallest Substructure of the Milky Way.
Shank, Derek Alan.

Fractured but Whole :Towards Understanding the Smallest Substructure of the Milky Way. - 1 online resource (633 pages)

Source: Dissertations Abstracts International, Volume: 83-11, Section: B.

Thesis (Ph.D.)--University of Notre Dame, 2022.

Includes bibliographical references

The Milky Way is believed to have been assembled through hierarchical mergers to form the Galactic structure observed today. Galaxies incorporated into the Milky Way have their stars scattered and displaced, no longer retaining the spatial coherence they once had. To understand these mergers and their impact on the structure of the Milky Way is a fundamental goal of Galactic Archaeology, one which is possible thanks to recent advancements in both observational and computational astronomy. In this work, data sets are assembled from large-scale stellar surveys to discover the smallest of these mergers, put them in context with the currently known Milky Way structures, and track chemical evolution progress throughout the Galaxy. Associations of remnants to known Milky Way substructures are recovered, such as Gaia-Sausage-Enceladus, the Helmi Streams, Thamnos, the Splashed Disk, the Metal-Weak Thick Disk, and LMS-1 (Wukong). Previously discovered remnants are, for the first time, analyzed in exhaustive detail to compare relations between discoveries, showing remarkable consistency across the field even when using differing detection methods. Evidence of remnants connected to Globular Clusters is presented, while no known Dwarf Galaxy connections are recovered. This work presents a crucial step towards understanding the smallest substructure of the Milky Way.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798438749387Subjects--Topical Terms:

535904
Astrophysics.
Subjects--Index Terms:

Milky WayIndex Terms--Genre/Form:

542853
Electronic books.

Fractured but Whole : = Towards Understanding the Smallest Substructure of the Milky Way.
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502 $a Thesis (Ph.D.)--University of Notre Dame, 2022.
504 $a Includes bibliographical references
520 $a The Milky Way is believed to have been assembled through hierarchical mergers to form the Galactic structure observed today. Galaxies incorporated into the Milky Way have their stars scattered and displaced, no longer retaining the spatial coherence they once had. To understand these mergers and their impact on the structure of the Milky Way is a fundamental goal of Galactic Archaeology, one which is possible thanks to recent advancements in both observational and computational astronomy. In this work, data sets are assembled from large-scale stellar surveys to discover the smallest of these mergers, put them in context with the currently known Milky Way structures, and track chemical evolution progress throughout the Galaxy. Associations of remnants to known Milky Way substructures are recovered, such as Gaia-Sausage-Enceladus, the Helmi Streams, Thamnos, the Splashed Disk, the Metal-Weak Thick Disk, and LMS-1 (Wukong). Previously discovered remnants are, for the first time, analyzed in exhaustive detail to compare relations between discoveries, showing remarkable consistency across the field even when using differing detection methods. Evidence of remnants connected to Globular Clusters is presented, while no known Dwarf Galaxy connections are recovered. This work presents a crucial step towards understanding the smallest substructure of the Milky Way.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Astrophysics. $3 535904
650 4 $a Physics. $3 516296
650 4 $a Astronomy. $3 517668
653 $a Milky Way
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653 $a Galactic Archaeology
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