Mrk 501 has a redshift z = 0.034 (∼ 456 Mly ∼ 140 Mpc) and R. A. = 16h 53m 52.2s, Dec.= +39° 45’ 37”. It has been monitored in radio (Richards et al. 2011), optical (Smith et al. 2009), X-ray (Abdo et al. 2011a), and γ-ray (Dorner et al. 2017). This object has several periodicities reported (Bhatta 2019). Recently Magallanes-Guijón & S. Mendoza (2022) have reported a periodicity ∼ 224 days.

The figure shows panels of radio, optical, X-ray, and Gamma-ray light curves, waveforms of the sonification as a function of time, and spectrograms of the blazar Mrk 501. The light curves are available at: Download Light curves.

Instructions

References

Richards, J. L., Max-Moerbeck, W., Pavlidou, V., King, O. G., Pearson, T. J., Readhead, A. C., ... & Bustos, R. (2011). Blazars in the Fermi era: the OVRO 40 m telescope monitoring program. The Astrophysical Journal Supplement Series, 194(2), 29.
Smith, P. S., Montiel, E., Rightley, S., Turner, J., Schmidt, G. D., & Jannuzi, B. T. (2009). Coordinated fermi/optical monitoring of blazars and the great 2009 september gamma-ray flare of 3C 454.3. arXiv preprint arXiv:0912.3621.
Abdo, A. A., Ackermann, M., Ajello, M., Allafort, A., Baldini, L., Ballet, J., ... & Suson, D. J. (2011). Insights into the High-energy γ-ray Emission of Markarian 501 from Extensive Multifrequency Observations in the Fermi Era. The Astrophysical Journal, 727(2), 129.
Dorner, D., Bretz, T., Gonzalez, M., Alfaro, R., & Tovmassian, G. (2017, January). M@ TE–Monitoring at TeV energies. In AIP Conference Proceedings (Vol. 1792, No. 1, p. 070007). AIP Publishing LLC.
Bhatta, G. (2019). Blazar Mrk 501 shows rhythmic oscillations in its γ-ray emission. Monthly Notices of the Royal Astronomical Society, 487(3), 3990-3997.
Magallanes-Guijón, G., & Mendoza, S. (2022). Long-term multiwavelength periodicity on the light curves of Mrk~ 501: the case for an eclipsing supermassive binary black hole. arXiv preprint arXiv:2210.15884.

Markarian 501

Instructions

References