تقرير
Peculiar emission line generation from ultra-rapid quasi-periodic oscillations of exotic astronomical objects
| العنوان: | Peculiar emission line generation from ultra-rapid quasi-periodic oscillations of exotic astronomical objects |
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| المؤلفون: | Borra, E. F. |
| سنة النشر: | 2017 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | The purpose of this article is to alert Astronomers, particularly those using spectroscopic surveys, to the fact that exotic astronomical objects (e.g. quasars or active galactic nuclei) that send ultra-rapid quasi periodic pulses of optical light would generate spectroscopic features that look like emission lines. This gives a simple technique to find quasi periodic pulses separated by times smaller than a nanosecond. One should look for emission lines that cannot be identified with known spectral lines in spectra. Such signals, generated by slower pulses, could also be found in the far infra-red, millimeter and radio regions, where they could be detected as objects unusually bright in a single narrow-band filter or channel. The outstanding interest of the technique comes from its simplicity so that it can be used to find ultra-rapid quasi-periodic oscillators in large astronomical surveys. A very small fraction of objects presently identified as Lyman alpha emitters that do not have other spectral features to confirm the Lyman alpha redshift, may possibly be quasi-periodic oscillators. However this is only a hypothesis that needs more observations for confirmation. Comment: Accepted for publication in the Journal of Astrophysics and Astronomy |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/s12036-017-9439-8 |
| URL الوصول: | http://arxiv.org/abs/1703.06776 |
| رقم الأكسشن: | edsarx.1703.06776 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/s12036-017-9439-8 |
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