Study of UV line and continuum variabilities in the Broadline Seyfert 1 Galaxy ESO 141-G55
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866914377541615616 |
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| author | Pahari, Mayukh Samhita, Veda N., Harikumar Baruah, Anurag Shinde, Vivek |
| author_facet | Pahari, Mayukh Samhita, Veda N., Harikumar Baruah, Anurag Shinde, Vivek |
| contents | We present the results from a 3-year-long Ultraviolet monitoring campaign of the broad line Seyfert 1 galaxy ESO 141-G55 using International Ultraviolet Explorer (IUE). By modelling all individual, extinction-corrected UV spectra in 1150-1978 A and 1850-3348 A wavelength range, we have observed a significant variability in both UV continuum and line fluxes. Variabilities due to ionised UV lines like SiIV, CIV and HeII are delayed with respect to the UV continuum by 2.92$^{+0.54}_{-0.61}$, 4.41$^{+0.44}_{-0.54}$, 4.11$^{+0.35}_{-0.81}$ days, respectively. At a distance of $\sim$0.004c, an outer accretion disc can be a possible site for the origin of UV lines. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_06841 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Study of UV line and continuum variabilities in the Broadline Seyfert 1 Galaxy ESO 141-G55 Pahari, Mayukh Samhita, Veda N., Harikumar Baruah, Anurag Shinde, Vivek High Energy Astrophysical Phenomena Astrophysics of Galaxies We present the results from a 3-year-long Ultraviolet monitoring campaign of the broad line Seyfert 1 galaxy ESO 141-G55 using International Ultraviolet Explorer (IUE). By modelling all individual, extinction-corrected UV spectra in 1150-1978 A and 1850-3348 A wavelength range, we have observed a significant variability in both UV continuum and line fluxes. Variabilities due to ionised UV lines like SiIV, CIV and HeII are delayed with respect to the UV continuum by 2.92$^{+0.54}_{-0.61}$, 4.41$^{+0.44}_{-0.54}$, 4.11$^{+0.35}_{-0.81}$ days, respectively. At a distance of $\sim$0.004c, an outer accretion disc can be a possible site for the origin of UV lines. |
| title | Study of UV line and continuum variabilities in the Broadline Seyfert 1 Galaxy ESO 141-G55 |
| topic | High Energy Astrophysical Phenomena Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2603.06841 |