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Optical observations of the nearby galaxy NGC 2366 through narrowband H$\alpha$ and SII filters. Supernova remnants status

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arxiv 1902.08671 v1 pith:IZ4SUGVT submitted 2019-02-22 astro-ph.GA astro-ph.CO

M. M. Vučetić , D. Onić , N. Petrov , A. Ćiprijanović , M. Z. Pavlović This is my paper · ORCID
classification astro-ph.GAastro-ph.CO
keywords candidatesgalaxyalphaobservationsopticaldetectednearbysupernova
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abstract

We present detection of 67 HII regions and two optical supernova remnant (SNR) candidates in the nearby irregular galaxy NGC 2366. The SNR candidates were detected by applying [SII]/H$\alpha$ ratio criterion to observations made with the 2-m RCC telescope at Rozhen National Astronomical Observatory in Bulgaria. In this paper we report coordinates, diameters, H$\alpha$ and [SII] fluxes for detected objects across the two fields of view in NGC 2366 galaxy. Using archival XMM-Newton observations we suggest possible X-ray counterparts of two optical SNR candidates. Also, we discard classification of two previous radio SNR candidates in this galaxy, since they appear to be background galaxies.

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  1. Chemical abundances and small-scale gas kinematics in the local star-forming galaxy NGC 2366

    astro-ph.GA 2025-07 conditional novelty 6.0 of 10

    New spectroscopy of NGC 2366 shows Mrk 71 and its outflow are more oxygen-rich than other HII regions, and identifies new Wolf-Rayet and supernova remnant candidates.

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