{"id":{"repo_id":"unlv","oai_identifier":"oai:oasis.library.unlv.edu:rtds-2546"},"canonical_url":"https://search.dev.ndltd.org/etd/unlv/oai:oasis.library.unlv.edu:rtds-2546","repository":{"repo_id":"unlv","name":"University of Nevada - Las Vegas","base_url":"https://oasis.library.unlv.edu/do/oai/"},"display":{"title":"High-resolution spectroscopy of very active solar-type stars","abstract":"Previous low-resolution spectroscopy has been used to find stars with highly active chromospheres within 50 pc of the Sun for the Northern hemisphere. We have analyzed thirteen such stars, using high-resolution spectroscopy, to determine Lithium abundances and metallicities. Although two of these stars may be close binaries, it is likely that eleven are single stars or wide binaries, of which four seem to be Pleiades age and two others appear Hyades age. It is usually expected that young stars are to be found in clusters, such as the Pleiades, in which there are many highly active young stars in close proximity to each other. However, we identify several apparently young single nearby field stars.","abstract_html":"Previous low-resolution spectroscopy has been used to find stars with highly active chromospheres within 50 pc of the Sun for the Northern hemisphere. We have analyzed thirteen such stars, using high-resolution spectroscopy, to determine Lithium abundances and metallicities. Although two of these stars may be close binaries, it is likely that eleven are single stars or wide binaries, of which four seem to be Pleiades age and two others appear Hyades age. It is usually expected that young stars are to be found in clusters, such as the Pleiades, in which there are many highly active young stars in close proximity to each other. However, we identify several apparently young single nearby field stars.","abstract_has_math":false,"creators":["Drager, Nora Rae"],"institution":"University of Nevada, Las Vegas","degree_name":"Master of Science (MS)","degree_level":"Thesis","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Diane Pyper-Smith"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2003,"date_issued":"2003-01-01T08:00:00Z","date_published":"2003-01-01T08:00:00Z","updated_at":"2026-07-24T05:25:40Z","subjects":[],"languages":["English"],"rights":["IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://oasis.library.unlv.edu/rtds/1547"],"render_values":[{"text":"https://oasis.library.unlv.edu/rtds/1547","href":"https://oasis.library.unlv.edu/rtds/1547","code":true}]}]},"links":{"outbound_url":"https://doi.org/10.25669/jljy-x6il","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Diane Pyper-Smith"]},{"key":"dc:creator","label":"Author","values":["Drager, Nora Rae"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:publisher","label":"Institution","values":["University of Nevada, Las Vegas"]},{"key":"dc:type","label":"Dc Type","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]},{"key":"dc:rights","label":"Dc Rights","values":["IN COPYRIGHT. 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It is usually expected that young stars are to be found in clusters, such as the Pleiades, in which there are many highly active young stars in close proximity to each other. However, we identify several apparently young single nearby field stars."]},{"key":"dc:format","label":"Dc Format","values":["pdf"]},{"key":"dc:title","label":"Title","values":["High-resolution spectroscopy of very active solar-type stars"]}]}],"canonical_facts":{"dc:contributor":["Diane Pyper-Smith"],"dc:creator":["Drager, Nora Rae"],"dc:description.abstract":["Previous low-resolution spectroscopy has been used to find stars with highly active chromospheres within 50 pc of the Sun for the Northern hemisphere. We have analyzed thirteen such stars, using high-resolution spectroscopy, to determine Lithium abundances and metallicities. Although two of these stars may be close binaries, it is likely that eleven are single stars or wide binaries, of which four seem to be Pleiades age and two others appear Hyades age. It is usually expected that young stars are to be found in clusters, such as the Pleiades, in which there are many highly active young stars in close proximity to each other. However, we identify several apparently young single nearby field stars."],"dc:format":["pdf"],"dc:identifier":["10.25669/jljy-x6il","https://oasis.library.unlv.edu/rtds/1547","https://oasis.library.unlv.edu/context/rtds/article/2546/viewcontent/uc.pdf"],"dc:language":["English"],"dc:publisher":["University of Nevada, Las Vegas"],"dc:rights":["IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/"],"dc:title":["High-resolution spectroscopy of very active solar-type stars"],"dc:type":["Text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T05:25:40Z"}