Zobraziť v EDS

Doppler shifted transient sodium detection by KECK/HIRES

Uložené v:
Podrobná bibliografia
Názov: Doppler shifted transient sodium detection by KECK/HIRES
Autori: Unni, Athira, Oza, Apurva V., Hoeijmakers, H. Jens, Seidel, Julia V., Sivarani, Thirupathi, Schmidt, Carl A., Kesseli, Aurora Y., de Kleer, Katherine, Baker, Ashley D., Gebek, Andrea, Westram, Moritz Meyer zu, Fisher, Chloe, Sallum, Steph, Bestha, Manjunath, Bello-Arufe, Aaron
Prispievatelia: Lund University, Faculty of Science, Department of Physics, Astrophysics, Lunds universitet, Naturvetenskapliga fakulteten, Fysiska institutionen, Astrofysik, Originator, Lund University, Profile areas and other strong research environments, Strategic research areas (SRA), eSSENCE: The e-Science Collaboration, Lunds universitet, Profilområden och andra starka forskningsmiljöer, Strategiska forskningsområden (SFO), eSSENCE: The e-Science Collaboration, Originator
Zdroj: Monthly Notices of the Royal Astronomical Society: Letters. 540(1):L48-L53
Predmety: Natural Sciences, Physical Sciences, Astronomy, Astrophysics and Cosmology, Naturvetenskap, Fysik, Astronomi, astrofysik och kosmologi
Popis: We carried out the first high-resolution transit observations of the exoplanet WASP-49 Ab with Keck/HIRES. Upon custom wavelength calibration we achieve a Doppler RV precision of < 60 m s−1. . This is an improvement in RV stability of roughly 240 m s−1 with respect to the instrument standard. We report an average sodium flux residual of (Formula presented) per cent t (8.0σ) comparable to previous studies. Interestingly, an average Doppler shift of −6.2 ± 0.5 km s−1 (12.4 σ) is identified offset from the exoplanet rest frame. The velocity residuals in time trace a blueshift (Formula presented) to redshift (Formula presented) suggesting the origin of the observed sodium is unlikely from the atmosphere of the planet. The average Na light curves indicate a depth of (Formula presented) per cent(11.7 σ) enduring ≲90 min with a half-max duration of $/sim$ 40.1 min. Frequent high-resolution spectroscopic observations will be able to characterize the periodicity of the observed Doppler shifts. Considering the origin of the transient sodium gas is of unknown geometry, a co-orbiting natural satellite may be a likely source.
Prístupová URL adresa: https://doi.org/10.1093/mnrasl/slaf031
Databáza: SwePub
FullText Text:
  Availability: 0
CustomLinks:
  – Url: https://doi.org/10.1093/mnrasl/slaf031#
    Name: EDS - SwePub (s4221598)
    Category: fullText
    Text: View record in SwePub
  – Url: https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=EBSCO&SrcAuth=EBSCO&DestApp=WOS&ServiceName=TransferToWoS&DestLinkType=GeneralSearchSummary&Func=Links&author=Unni%20A
    Name: ISI
    Category: fullText
    Text: Nájsť tento článok vo Web of Science
    Icon: https://imagesrvr.epnet.com/ls/20docs.gif
    MouseOverText: Nájsť tento článok vo Web of Science
Header DbId: edsswe
DbLabel: SwePub
An: edsswe.oai.portal.research.lu.se.publications.78301b9c.f562.4da9.bbc8.9427576deefc
RelevancyScore: 1115
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 1114.736328125
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Doppler shifted transient sodium detection by KECK/HIRES
– Name: Author
  Label: Authors
  Group: Au
  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Unni%2C+Athira%22&quot;&gt;Unni, Athira&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Oza%2C+Apurva+V%2E%22&quot;&gt;Oza, Apurva V.&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Hoeijmakers%2C+H%2E+Jens%22&quot;&gt;Hoeijmakers, H. Jens&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Seidel%2C+Julia+V%2E%22&quot;&gt;Seidel, Julia V.&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Sivarani%2C+Thirupathi%22&quot;&gt;Sivarani, Thirupathi&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Schmidt%2C+Carl+A%2E%22&quot;&gt;Schmidt, Carl A.&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kesseli%2C+Aurora+Y%2E%22&quot;&gt;Kesseli, Aurora Y.&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22de+Kleer%2C+Katherine%22&quot;&gt;de Kleer, Katherine&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Baker%2C+Ashley+D%2E%22&quot;&gt;Baker, Ashley D.&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Gebek%2C+Andrea%22&quot;&gt;Gebek, Andrea&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Westram%2C+Moritz+Meyer+zu%22&quot;&gt;Westram, Moritz Meyer zu&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Fisher%2C+Chloe%22&quot;&gt;Fisher, Chloe&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Sallum%2C+Steph%22&quot;&gt;Sallum, Steph&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Bestha%2C+Manjunath%22&quot;&gt;Bestha, Manjunath&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Bello-Arufe%2C+Aaron%22&quot;&gt;Bello-Arufe, Aaron&lt;/searchLink&gt;
– Name: Author
  Label: Contributors
  Group: Au
  Data: Lund University, Faculty of Science, Department of Physics, Astrophysics, Lunds universitet, Naturvetenskapliga fakulteten, Fysiska institutionen, Astrofysik, Originator&lt;br /&gt;Lund University, Profile areas and other strong research environments, Strategic research areas (SRA), eSSENCE: The e-Science Collaboration, Lunds universitet, Profilomr&#229;den och andra starka forskningsmilj&#246;er, Strategiska forskningsomr&#229;den (SFO), eSSENCE: The e-Science Collaboration, Originator
– Name: TitleSource
  Label: Source
  Group: Src
  Data: &lt;i&gt;Monthly Notices of the Royal Astronomical Society: Letters&lt;/i&gt;. 540(1):L48-L53
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Natural+Sciences%22&quot;&gt;Natural Sciences&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Physical+Sciences%22&quot;&gt;Physical Sciences&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Astronomy%22&quot;&gt;Astronomy&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Astrophysics+and+Cosmology%22&quot;&gt;Astrophysics and Cosmology&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Naturvetenskap%22&quot;&gt;Naturvetenskap&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Fysik%22&quot;&gt;Fysik&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Astronomi%22&quot;&gt;Astronomi&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22astrofysik+och+kosmologi%22&quot;&gt;astrofysik och kosmologi&lt;/searchLink&gt;
– Name: Abstract
  Label: Description
  Group: Ab
  Data: We carried out the first high-resolution transit observations of the exoplanet WASP-49 Ab with Keck/HIRES. Upon custom wavelength calibration we achieve a Doppler RV precision of &lt; 60 m s−1. . This is an improvement in RV stability of roughly 240 m s−1 with respect to the instrument standard. We report an average sodium flux residual of (Formula presented) per cent t (8.0σ) comparable to previous studies. Interestingly, an average Doppler shift of −6.2 &#177; 0.5 km s−1 (12.4 σ) is identified offset from the exoplanet rest frame. The velocity residuals in time trace a blueshift (Formula presented) to redshift (Formula presented) suggesting the origin of the observed sodium is unlikely from the atmosphere of the planet. The average Na light curves indicate a depth of (Formula presented) per cent(11.7 σ) enduring ≲90 min with a half-max duration of $/sim$ 40.1 min. Frequent high-resolution spectroscopic observations will be able to characterize the periodicity of the observed Doppler shifts. Considering the origin of the transient sodium gas is of unknown geometry, a co-orbiting natural satellite may be a likely source.
– Name: URL
  Label: Access URL
  Group: URL
  Data: &lt;link linkTarget=&quot;URL&quot; linkTerm=&quot;https://doi.org/10.1093/mnrasl/slaf031&quot; linkWindow=&quot;_blank&quot;&gt;https://doi.org/10.1093/mnrasl/slaf031&lt;/link&gt;
PLink https://erproxy.cvtisr.sk/sfx/access?url=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=edsswe&AN=edsswe.oai.portal.research.lu.se.publications.78301b9c.f562.4da9.bbc8.9427576deefc
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1093/mnrasl/slaf031
    Languages:
      – Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 6
        StartPage: L48
    Subjects:
      – SubjectFull: Natural Sciences
        Type: general
      – SubjectFull: Physical Sciences
        Type: general
      – SubjectFull: Astronomy
        Type: general
      – SubjectFull: Astrophysics and Cosmology
        Type: general
      – SubjectFull: Naturvetenskap
        Type: general
      – SubjectFull: Fysik
        Type: general
      – SubjectFull: Astronomi
        Type: general
      – SubjectFull: astrofysik och kosmologi
        Type: general
    Titles:
      – TitleFull: Doppler shifted transient sodium detection by KECK/HIRES
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Unni, Athira
      – PersonEntity:
          Name:
            NameFull: Oza, Apurva V.
      – PersonEntity:
          Name:
            NameFull: Hoeijmakers, H. Jens
      – PersonEntity:
          Name:
            NameFull: Seidel, Julia V.
      – PersonEntity:
          Name:
            NameFull: Sivarani, Thirupathi
      – PersonEntity:
          Name:
            NameFull: Schmidt, Carl A.
      – PersonEntity:
          Name:
            NameFull: Kesseli, Aurora Y.
      – PersonEntity:
          Name:
            NameFull: de Kleer, Katherine
      – PersonEntity:
          Name:
            NameFull: Baker, Ashley D.
      – PersonEntity:
          Name:
            NameFull: Gebek, Andrea
      – PersonEntity:
          Name:
            NameFull: Westram, Moritz Meyer zu
      – PersonEntity:
          Name:
            NameFull: Fisher, Chloe
      – PersonEntity:
          Name:
            NameFull: Sallum, Steph
      – PersonEntity:
          Name:
            NameFull: Bestha, Manjunath
      – PersonEntity:
          Name:
            NameFull: Bello-Arufe, Aaron
      – PersonEntity:
          Name:
            NameFull: Lund University, Faculty of Science, Department of Physics, Astrophysics, Lunds universitet, Naturvetenskapliga fakulteten, Fysiska institutionen, Astrofysik, Originator
      – PersonEntity:
          Name:
            NameFull: Lund University, Profile areas and other strong research environments, Strategic research areas (SRA), eSSENCE: The e-Science Collaboration, Lunds universitet, Profilområden och andra starka forskningsmiljöer, Strategiska forskningsområden (SFO), eSSENCE: The e-Science Collaboration, Originator
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 01
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 17453933
            – Type: issn-locals
              Value: SWEPUB_FREE
            – Type: issn-locals
              Value: LU_SWEPUB
          Numbering:
            – Type: volume
              Value: 540
            – Type: issue
              Value: 1
          Titles:
            – TitleFull: Monthly Notices of the Royal Astronomical Society: Letters
              Type: main
ResultId 1