Planetary nebulae with UVIT: A progress report

Autor:	Alak Ray, Firoza Sutaria, N. Kameswara Rao, Gajendra Pandey, Jayant Murthy
Rok vydání:	2021
Předmět:	Physics Space and Planetary Science Astrophysics::High Energy Astrophysical Phenomena Ionization Continuum (design consultancy) Astronomy and Astrophysics Astrophysics::Earth and Planetary Astrophysics Emission spectrum Astrophysics Planetary nebula Spectral line
Zdroj:	Journal of Astrophysics and Astronomy. 42
ISSN:	0973-7758 0250-6335
Popis:	The spectral region between 1250–3000 $$\AA $$ contains important spectral lines to understand the morphological structures and evolution of planetary nebulae. This is the region sampled by UVIT through various filter bands both in the continuum and in emission lines (e.g.. [C iv], [He i], [Mg ii] etc.). We have mapped several planetary nebulae with different characteristics, ranging in morphology from bipolar to wide and diffuse, and in various states of ionization, comparing the UV with the X-ray morphologies wherever the X-ray images were also available. The major unanticipated discovery with UVIT has been the detection of previously undetected, cold, fluorescent, $$\hbox {H}_2$$ gas surrounding some planetary nebulae. This may be a possible solution to the missing mass problem. Here we present a review of our studies so far done (both published and on going) with UVIT.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cff6fb9687aee6957d4916f490ae6dd5 https://doi.org/10.1007/s12036-021-09698-3 Zobrazit plný text záznamu Full text from SpringerLink