Report
Pluto's atmosphere in plateau phase since 2015 from a stellar occultation at Devasthal
| العنوان: | Pluto's atmosphere in plateau phase since 2015 from a stellar occultation at Devasthal |
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| المؤلفون: | 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, Braga-Ribas, Felipe, Vieira-Martins, Roberto, Santos-Sanz, Pablo, Chand, Krishan, Bhatt, Bhuwan C. |
| سنة النشر: | 2021 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Earth and Planetary Astrophysics |
| الوصف: | A stellar occultation by Pluto was observed on 6 June 2020 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 $p_{\rm surf}= 12.23^{+0.65}_{-0.38} $~$\mu$bar. This shows that Pluto's atmosphere is in a plateau phase since mid-2015, a result which is in excellent agreement with the Pluto volatile transport model of Meza et al. (2019}. This value does not support the pressure decrease reported by independent teams, based on occultations observed in 2018 and 2019, see Young et al. (2021} and Arimatu et al. (2020), respectively. Comment: 8 pages, 3 figures, revised and accepted version for ApJL |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3847/2041-8213/ac4249 |
| URL الوصول: | http://arxiv.org/abs/2112.07764 |
| رقم الانضمام: | edsarx.2112.07764 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3847/2041-8213/ac4249 |
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