Article
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Density and Velocity Analysis of the Planetary Nebula NGC 6853
Version 1
: Received: 26 August 2022 / Approved: 5 September 2022 / Online: 5 September 2022 (14:08:07 CEST)
How to cite: Hrubý, R. Density and Velocity Analysis of the Planetary Nebula NGC 6853. Preprints 2022, 2022090070. https://doi.org/10.20944/preprints202209.0070.v1 Hrubý, R. Density and Velocity Analysis of the Planetary Nebula NGC 6853. Preprints 2022, 2022090070. https://doi.org/10.20944/preprints202209.0070.v1
Abstract
Stellar NGC 6853, also known as the Dumbbell Nebula, is a remarkable example of an elliptical morphological type 1 multiple shell planetary nebula, which is now in one of its last evolutionary stages. This project focuses on examining the distinct varieties of the nebula temperatures and densities using observation data from the Issac Newton Group of Telescopes and comparing them with the observation data from Observatoire de Haute Provence from 14th to 18th of October 2019, with a primary focus on the data from the Issac Newton Telescope (INT). The densities ranged from diffused regions of 376.63 ± 228.97 atoms per cm3 to dense regions of 6441.11 ± 228.90 atoms per cm3; these values are slightly lower approximately by 2000 than the values from the Observatoire de Haute Provence. The radial velocity and the expansion velocity were also calculated using the spectroscopic data and were found to be 29.50 ± 0.38 km−1 and 37.40 ± 0.38 km−1 respectively. This result is expected from a multi-shell nebula that consists of the main body and surrounding halo
Keywords
Nebula; NGC 6853; Stellar; Planetary nebula; Deep space; remnant
Subject
Physical Sciences, Astronomy and Astrophysics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Commenter: Sergio ILOVAISKY
The commenter has declared there is no conflict of interests.
Your article was brought to my attention as you cite an article of ours by Chevalier, Ilovaisky and Leisy (1999). However, the schematic diagram of the 152cm OHP telescope comes from the OHP web site :
http://www.obs-hp.fr/guide/152.html, not our Aquila X-1 paper. Please make the necessary corrections.
Best regards,
Sergio