تقرير
Simultaneous X-ray and Radio Observations of the Repeating Fast Radio Burst FRB 180916.J0158+65
| العنوان: | Simultaneous X-ray and Radio Observations of the Repeating Fast Radio Burst FRB 180916.J0158+65 |
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| المؤلفون: | Scholz, P., Cook, A., Cruces, M., Hessels, J. W. T., Kaspi, V. M., Majid, W. A., Naidu, A., Pearlman, A. B., Spitler, L., Bandura, K. M., Bhardwaj, M., Cassanelli, T., Chawla, P., Gaensler, B. M., Good, D. C., Josephy, A., Karuppusamy, R., Keimpema, A., Kirichenko, A. Yu., Kirsten, F., Kocz, J., Leung, C., Marcote, B., Masui, K., Mena-Parra, J., Merryfield, M., Michilli, D., Naudet, C. J., Nimmo, K., Pleunis, Z., Prince, T. A., Rafiei-Ravandi, M., Rahman, M., Shin, K., Smith, K. M., Stairs, I. H., Tendulkar, S. P., Vanderlinde, K. |
| سنة النشر: | 2020 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | We report on simultaneous radio and X-ray observations of the repeating fast radio burst source FRB 180916.J0158+65 using the Canadian Hydrogen Intensity Mapping Experiment (CHIME), Effelsberg, and Deep Space Network (DSS-14 and DSS-63) radio telescopes and the Chandra X-ray Observatory. During 33 ks of Chandra observations, we detect no radio bursts in overlapping Effelsberg or Deep Space Network observations and a single radio burst during CHIME/FRB source transits. We detect no X-ray events in excess of the background during the Chandra observations. These non-detections imply a 5-$\sigma$ limit of $<5\times10^{-10}$ erg cm$^{-2}$ for the 0.5--10 keV fluence of prompt emission at the time of the radio burst and $1.3\times10^{-9}$ erg cm$^{-2}$ at any time during the Chandra observations at the position of FRB 180916.J0158+65. Given the host-galaxy redshift of FRB 180916.J0158+65 ($z\sim0.034$), these correspond to energy limits of $<1.6\times10^{45}$ erg and $<4\times10^{45}$ erg, respectively. We also place a 5-$\sigma$ limit of $<8\times10^{-15}$ erg s$^{-1}$ cm$^{-2}$ on the 0.5--10\,keV absorbed flux of a persistent source at the location of FRB 180916.J0158+65. This corresponds to a luminosity limit of $<2\times10^{40}$ erg s$^{-1}$. Using Fermi/GBM data we search for prompt gamma-ray emission at the time of radio bursts from FRB 180916.J0158+65 and find no significant bursts, placing a limit of $4\times10^{-9}$ erg cm$^{-2}$ on the 10--100 keV fluence. We also search Fermi/LAT data for periodic modulation of the gamma-ray brightness at the 16.35-day period of radio-burst activity and detect no significant modulation. We compare these deep limits to the predictions of various fast radio burst models, but conclude that similar X-ray constraints on a closer fast radio burst source would be needed to strongly constrain theory. Comment: 16 pages, 2 figures, submitted to ApJ |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3847/1538-4357/abb1a8 |
| الوصول الحر: | http://arxiv.org/abs/2004.06082Test |
| رقم الانضمام: | edsarx.2004.06082 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3847/1538-4357/abb1a8 |
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