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| Autores principales: | , , , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2403.00317 |
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| _version_ | 1866914759124713472 |
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| author | Fesen, Robert A. Drechsler, Marcel Strottner, Xavier Falls, Bray Sainty, Yann Martino, Nicolas Galli, Richard Ludgate, Mathew Blauensteiner, Markus Reich, Wolfgang Walker, Sean di Cicco, Dennis Mittelman, David Morgan, Curtis Kaeouach, Aziz Ettahar Rupert, Justin Benkhaldoun, Zouhair |
| author_facet | Fesen, Robert A. Drechsler, Marcel Strottner, Xavier Falls, Bray Sainty, Yann Martino, Nicolas Galli, Richard Ludgate, Mathew Blauensteiner, Markus Reich, Wolfgang Walker, Sean di Cicco, Dennis Mittelman, David Morgan, Curtis Kaeouach, Aziz Ettahar Rupert, Justin Benkhaldoun, Zouhair |
| contents | Deep optical emission-line images are presented for nine known plus three new Galactic supernova remnants (SNRs), all but one having at least one angular dimension greater than one degree. Wide-field images taken in H$α$ and [O III] $λ$5007 reveal many new and surprising remnant structures including large remnant shock extensions and `breakout' features not seen in published optical or radio data. These images represent over 12,000 individual images totaling more than 1000 hours of exposure time taken over the last two years mainly using small aperture telescopes which detected fainter nebular line emissions than published emission-line images. During the course of this imaging program, we discovered three new SNRs, namely G107.5-5.1 (the Nereides Nebula), G209.9-8.2, and G210.5+1.3, two of which have diameters >1.5 degrees. Besides offering greater structural detail on the nine already known SNRs, a key finding of this study is the importance of [O III] emission-line imaging for mapping the complete shock emissions of Galactic SNRs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_00317 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Deep Optical Emission-Line Images of Nine Known and Three New Galactic Supernova Remnants Fesen, Robert A. Drechsler, Marcel Strottner, Xavier Falls, Bray Sainty, Yann Martino, Nicolas Galli, Richard Ludgate, Mathew Blauensteiner, Markus Reich, Wolfgang Walker, Sean di Cicco, Dennis Mittelman, David Morgan, Curtis Kaeouach, Aziz Ettahar Rupert, Justin Benkhaldoun, Zouhair High Energy Astrophysical Phenomena Deep optical emission-line images are presented for nine known plus three new Galactic supernova remnants (SNRs), all but one having at least one angular dimension greater than one degree. Wide-field images taken in H$α$ and [O III] $λ$5007 reveal many new and surprising remnant structures including large remnant shock extensions and `breakout' features not seen in published optical or radio data. These images represent over 12,000 individual images totaling more than 1000 hours of exposure time taken over the last two years mainly using small aperture telescopes which detected fainter nebular line emissions than published emission-line images. During the course of this imaging program, we discovered three new SNRs, namely G107.5-5.1 (the Nereides Nebula), G209.9-8.2, and G210.5+1.3, two of which have diameters >1.5 degrees. Besides offering greater structural detail on the nine already known SNRs, a key finding of this study is the importance of [O III] emission-line imaging for mapping the complete shock emissions of Galactic SNRs. |
| title | Deep Optical Emission-Line Images of Nine Known and Three New Galactic Supernova Remnants |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2403.00317 |