Nature of the diffuse emission sources in the H i supershell in the galaxy IC 1613
We present a study of the nearby low-metallicity dwarf galaxy IC 1613, focusing on the search for massive stars and related feedback processes, as well as for faint supernova remnants (SNR) in late stages of evolution. We obtained the deepest images of IC 1613 in the narrow-band H α, He ii and [S ii...
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| Main Authors: | , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
April 2024
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| In: |
Monthly notices of the Royal Astronomical Society
Year: 2024, Volume: 529, Issue: 4, Pages: 4930-4946 |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/stae853 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1093/mnras/stae853
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| Author Notes: | Anastasiya D. Yarovova, Alexei V. Moiseev, Ivan S. Gerasimov, Milica M. Vučetić, Oleg V. Egorov, Dragana Ilić, Ilya A. Mereminskiy, Yury V. Pakhomov and Olga N. Sholukhova |
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| 245 | 1 | 0 | |a Nature of the diffuse emission sources in the H i supershell in the galaxy IC 1613 |c Anastasiya D. Yarovova, Alexei V. Moiseev, Ivan S. Gerasimov, Milica M. Vučetić, Oleg V. Egorov, Dragana Ilić, Ilya A. Mereminskiy, Yury V. Pakhomov and Olga N. Sholukhova |
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| 520 | |a We present a study of the nearby low-metallicity dwarf galaxy IC 1613, focusing on the search for massive stars and related feedback processes, as well as for faint supernova remnants (SNR) in late stages of evolution. We obtained the deepest images of IC 1613 in the narrow-band H α, He ii and [S ii] emission lines and new long-slit spectroscopy observations using several facilities (6-m BTA, 2.5m SAI MSU, and 150RTT telescopes), in combination with the multiwavelength archival data from MUSE/VLT, VLA, XMM-Newton, and Swift/XRT. Our deep narrow-band photometry identifies several faint shells in the galaxy, and we further investigate their physical characteristics with the new long-slit spectroscopy observations and the archival multiwavelength data. Based on energy balance calculations and assumptions about their possible nature, we propose that one of the shells is a possible remnant of a supernova explosion. We study five out of eight Wolf-Rayet (WR) star candidates previously published for this galaxy using the He ii emission line mapping, MUSE/VLT archival spectra, and new long-slit spectra. Our analysis discards the considered WR candidates and finds no new ones. We found P Cyg profiles in H α line in two stars, which we classify as Luminous Blue Variable (LBV) star candidates. Overall, the galaxy IC 1613 may have a lower rate of WR star formation than previously suggested. | ||
| 700 | 1 | |a Moiseev, Alexei V |e VerfasserIn |4 aut | |
| 700 | 1 | |a Gerasimov, Ivan S |e VerfasserIn |4 aut | |
| 700 | 1 | |a Vučetić, Milica M |e VerfasserIn |4 aut | |
| 700 | 1 | |a Egorov, Oleg |d 1986- |e VerfasserIn |0 (DE-588)136049192 |0 (DE-627)694026565 |0 (DE-576)284415499 |4 aut | |
| 700 | 1 | |a Ilić, Dragana |e VerfasserIn |4 aut | |
| 700 | 1 | |a Mereminskiy, Ilya A |e VerfasserIn |4 aut | |
| 700 | 1 | |a Pakhomov, Yury V |e VerfasserIn |4 aut | |
| 700 | 1 | |a Sholukhova, Olga N |e VerfasserIn |4 aut | |
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