February 26, 2021 Poster Open Access

Greco, Jennifer J.; Cushing, Michael C.

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  <identifier identifierType="DOI">10.5281/zenodo.4564681</identifier>
  <creators>
    <creator>
      <creatorName>Greco, Jennifer J.</creatorName>
      <givenName>Jennifer J.</givenName>
      <familyName>Greco</familyName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-4649-1568</nameIdentifier>
      <affiliation>Uppsala University/SCAS</affiliation>
    </creator>
    <creator>
      <creatorName>Cushing, Michael C.</creatorName>
      <givenName>Michael C.</givenName>
      <familyName>Cushing</familyName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0001-7780-3352</nameIdentifier>
      <affiliation>University of Toledo</affiliation>
    </creator>
  </creators>
  <titles>
    <title>A High Resolution H- and K-Band Spectroscopic Sequence of Ultracool Dwarfs</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2021</publicationYear>
  <subjects>
    <subject>low-mass stars</subject>
    <subject>substellar objects</subject>
    <subject>ultracool dwarfs</subject>
    <subject>spectroscopy</subject>
    <subject>near-infrared spectroscopy</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2021-02-26</date>
  </dates>
  <language>en</language>
  <resourceType resourceTypeGeneral="Text">Poster</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/4564681</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.5281/zenodo.4564680</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://zenodo.org/communities/coolstars20half</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Brown dwarfs are substellar objects too low mass to initiate the hydrogen fusion necessary to be considered stars. Ultracool dwarfs, objects with spectral types of M7 or later,&amp;nbsp;are a mix of low mass stars and brown dwarfs. We have obtained the first high-resolution (R &amp;sim; 45, 000) H- and K-band spectral sequence of ultracool dwarfs with spectral types ranging from M1.5 V to T6, including known low-gravity objects at six spectral types (M9, L0, L1, L2, L3, L5). All spectra were obtained using the Immersion Grating INfrared Spectrometer (IGRINS) at a resolving power of R &amp;sim; 45,000. We compared 22 of our objects to synthetic spectra created from the atmospheric models of Saumon &amp;amp; Marley (2008), to measure specific properties including effective temperature, cloud properties, rotational velocities, and surface gravity.&lt;/p&gt;</description>
    <description descriptionType="Other">{"references": ["Cushing, M. C., Marley, M. S., Saumon, D., et al. 2008, Ap. J., 678, 1372", "Filippazzo, J. C., Rice, E. L., Faherty, J., et al. 2015, Ap. J., 810, 158", "Saumon, D., &amp; Marley, M. S. 2008, Ap. J., 689, 1327"]}</description>
  </descriptions>
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