Pluto's Atmosphere in Plateau Phase Since 2015 from a Stellar Occultation at Devasthal
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2021 |
| Outros Autores: | , , , , , , , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da UNESP |
| Texto Completo: | http://dx.doi.org/10.3847/2041-8213/ac4249 http://hdl.handle.net/11449/223197 |
Resumo: | A stellar occultation by Pluto was observed on 2020 June 6 with the 1.3 m and 3.6 m telescopes located at Devasthal, Nainital, India, using imaging systems in the I and H bands, respectively. From this event, we derive a surface pressure for Pluto's atmosphere of psurf=12.23-0.38+0.65 μbar. This shows that Pluto's atmosphere has been in a plateau phase since mid-2015, a result which is in excellent agreement with the Pluto volatile transport model of Meza et al. This value does not support the pressure decrease reported by independent teams, based on occultations observed in 2018 and 2019 by Young et al. and Arimatsu et al., respectively. |
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Pluto's Atmosphere in Plateau Phase Since 2015 from a Stellar Occultation at DevasthalA stellar occultation by Pluto was observed on 2020 June 6 with the 1.3 m and 3.6 m telescopes located at Devasthal, Nainital, India, using imaging systems in the I and H bands, respectively. From this event, we derive a surface pressure for Pluto's atmosphere of psurf=12.23-0.38+0.65 μbar. This shows that Pluto's atmosphere has been in a plateau phase since mid-2015, a result which is in excellent agreement with the Pluto volatile transport model of Meza et al. This value does not support the pressure decrease reported by independent teams, based on occultations observed in 2018 and 2019 by Young et al. and Arimatsu et al., respectively.LESIA Observatoire de Paris Université PSL CNRS Sorbonne Université Université de Paris, 5 place Jules JanssenPhysical Research Laboratory, GujaratIndian Institute of Space Science and Technology, KeralaAkashmitra Mandal, MaharashtraAryabhatta Research Institute of Observational Sciences, Manora PeakInstitut Polytechnique des Sciences Avancées IPSAIMCCE Observatoire de Paris PSL Research University CNRS Sorbonne Université Univ. LilleUniversidade Federal do Rio de Janeiro - Observatório do Valongo, Ladeira Pedro Antônio 43-RJLaboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. 4 José Cristino 77Instituto de Astrofísica de Andalucía IAA-CSIC, Glorieta de la Astronomía s/nUNESP - S o Paulo State University Grupo de Din mica Orbital e Planetologia, SPFederal University of Technology-Paraná (UTFPR / DAFIS)Observatório Nacional/MCTICIndian Institute of Astrophysics, II Block, KoramangalaUNESP - S o Paulo State University Grupo de Din mica Orbital e Planetologia, SPUniversité de ParisPhysical Research LaboratoryIndian Institute of Space Science and TechnologyAkashmitra MandalAryabhatta Research Institute of Observational SciencesInstitut Polytechnique des Sciences Avancées IPSAUniv. LilleUniversidade Federal do Rio de Janeiro (UFRJ)Laboratório Interinstitucional de e-Astronomia - LIneAIAA-CSICUniversidade Estadual Paulista (UNESP)Federal University of Technology-Paraná (UTFPR / DAFIS)Observatório Nacional/MCTICIndian Institute of AstrophysicsSicardy, BrunoAshok, Nagarhalli M.Tej, AnandmayeePawar, GaneshDeshmukh, ShishirDeshpande, AmeyaSharma, SaurabhDesmars, JosselinAssafin, MarceloOrtiz, Jose LuisBenedetti-Rossi, Gustavo [UNESP]Braga-Ribas, FelipeVieira-Martins, RobertoSantos-Sanz, PabloChand, KrishanBhatt, Bhuwan C.2022-04-28T19:49:09Z2022-04-28T19:49:09Z2021-12-20info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3847/2041-8213/ac4249Astrophysical Journal Letters, v. 923, n. 2, 2021.2041-82132041-8205http://hdl.handle.net/11449/22319710.3847/2041-8213/ac42492-s2.0-85122465591Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAstrophysical Journal Lettersinfo:eu-repo/semantics/openAccess2022-04-28T19:49:09Zoai:repositorio.unesp.br:11449/223197Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:49:09Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
| dc.title.none.fl_str_mv |
Pluto's Atmosphere in Plateau Phase Since 2015 from a Stellar Occultation at Devasthal |
| title |
Pluto's Atmosphere in Plateau Phase Since 2015 from a Stellar Occultation at Devasthal |
| spellingShingle |
Pluto's Atmosphere in Plateau Phase Since 2015 from a Stellar Occultation at Devasthal Sicardy, Bruno |
| title_short |
Pluto's Atmosphere in Plateau Phase Since 2015 from a Stellar Occultation at Devasthal |
| title_full |
Pluto's Atmosphere in Plateau Phase Since 2015 from a Stellar Occultation at Devasthal |
| title_fullStr |
Pluto's Atmosphere in Plateau Phase Since 2015 from a Stellar Occultation at Devasthal |
| title_full_unstemmed |
Pluto's Atmosphere in Plateau Phase Since 2015 from a Stellar Occultation at Devasthal |
| title_sort |
Pluto's Atmosphere in Plateau Phase Since 2015 from a Stellar Occultation at Devasthal |
| author |
Sicardy, Bruno |
| author_facet |
Sicardy, Bruno Ashok, Nagarhalli M. Tej, Anandmayee Pawar, Ganesh Deshmukh, Shishir Deshpande, Ameya Sharma, Saurabh Desmars, Josselin Assafin, Marcelo Ortiz, Jose Luis Benedetti-Rossi, Gustavo [UNESP] Braga-Ribas, Felipe Vieira-Martins, Roberto Santos-Sanz, Pablo Chand, Krishan Bhatt, Bhuwan C. |
| author_role |
author |
| author2 |
Ashok, Nagarhalli M. Tej, Anandmayee Pawar, Ganesh Deshmukh, Shishir Deshpande, Ameya Sharma, Saurabh Desmars, Josselin Assafin, Marcelo Ortiz, Jose Luis Benedetti-Rossi, Gustavo [UNESP] Braga-Ribas, Felipe Vieira-Martins, Roberto Santos-Sanz, Pablo Chand, Krishan Bhatt, Bhuwan C. |
| author2_role |
author author author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Université de Paris Physical Research Laboratory Indian Institute of Space Science and Technology Akashmitra Mandal Aryabhatta Research Institute of Observational Sciences Institut Polytechnique des Sciences Avancées IPSA Univ. Lille Universidade Federal do Rio de Janeiro (UFRJ) Laboratório Interinstitucional de e-Astronomia - LIneA IAA-CSIC Universidade Estadual Paulista (UNESP) Federal University of Technology-Paraná (UTFPR / DAFIS) Observatório Nacional/MCTIC Indian Institute of Astrophysics |
| dc.contributor.author.fl_str_mv |
Sicardy, Bruno Ashok, Nagarhalli M. Tej, Anandmayee Pawar, Ganesh Deshmukh, Shishir Deshpande, Ameya Sharma, Saurabh Desmars, Josselin Assafin, Marcelo Ortiz, Jose Luis Benedetti-Rossi, Gustavo [UNESP] Braga-Ribas, Felipe Vieira-Martins, Roberto Santos-Sanz, Pablo Chand, Krishan Bhatt, Bhuwan C. |
| description |
A stellar occultation by Pluto was observed on 2020 June 6 with the 1.3 m and 3.6 m telescopes located at Devasthal, Nainital, India, using imaging systems in the I and H bands, respectively. From this event, we derive a surface pressure for Pluto's atmosphere of psurf=12.23-0.38+0.65 μbar. This shows that Pluto's atmosphere has been in a plateau phase since mid-2015, a result which is in excellent agreement with the Pluto volatile transport model of Meza et al. This value does not support the pressure decrease reported by independent teams, based on occultations observed in 2018 and 2019 by Young et al. and Arimatsu et al., respectively. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021-12-20 2022-04-28T19:49:09Z 2022-04-28T19:49:09Z |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3847/2041-8213/ac4249 Astrophysical Journal Letters, v. 923, n. 2, 2021. 2041-8213 2041-8205 http://hdl.handle.net/11449/223197 10.3847/2041-8213/ac4249 2-s2.0-85122465591 |
| url |
http://dx.doi.org/10.3847/2041-8213/ac4249 http://hdl.handle.net/11449/223197 |
| identifier_str_mv |
Astrophysical Journal Letters, v. 923, n. 2, 2021. 2041-8213 2041-8205 10.3847/2041-8213/ac4249 2-s2.0-85122465591 |
| dc.language.iso.fl_str_mv |
eng |
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eng |
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Astrophysical Journal Letters |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
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Universidade Estadual Paulista (UNESP) |
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UNESP |
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UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
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