Abstract
BL Lacs are one subclass of blazars with highly energetic \(\gamma\)-ray emission, which is strongly boosted by a relativistic beaming effect. The latest catalogue of the 10 years of Fermi/LAT data (Abdollahi et al. 2020) and the \(\gamma\)-ray Doppler factors in Pei et al. (2020) provide us with a large BL Lac sample to study their jet emission morphologies and intrinsic properties. In this paper, we collected a sample of 294 Fermi BL Lacs and probed the correlations between the \(\gamma\)-ray emissions and luminosity distances. Our analyses give following conclusions: (1) the observed \(\gamma\)-ray emissions are really boosted by the \(\gamma\)-ray Doppler factor, and the intrinsic \(\gamma\)-ray emissions are closely correlated with luminosity distances. (2) the morphology of jet emissions for HBLs may be continuous, while that for IBLs may be the case of a moving sphere in the \(\gamma\)-ray bands.
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Data Availability
The datasets of this article were derived from Pei et al. (2020). Data will be made available on reasonable request. Readers can also contact author to obtain the whole sample.
References
Abdo, A.A., Ackermann, M., Ajello, M., et al.: Astron. Astrophys. Suppl. Ser. 188(2), 405 (2010)
Abdollahi, S., Acero, F., Ackermann, M., et al.: Astron. Astrophys. Suppl. Ser. 247(1), 33 (2020)
Chen, L.: Astron. Astrophys. Suppl. Ser. 235(2), 39 (2018)
Dondi, L., Ghisellini, G.: Mon. Not. R. Astron. Soc. Lett. 273(3), 583 (1995)
Fan, J.H., Xie, G.Z., Pecontal, E., et al.: Astrophys. J. 507(1), 173 (1998)
Fan, J.-H., Huang, Y., He, T.-M., et al.: Publ. Astron. Soc. Jpn. 61, 639 (2009)
Fan, J.-H., Yang, J.-H., Liu, Y., et al.: Res. Astron. Astrophys. 13(3), 259 (2013)
Fan, J.-H., Bastieri, D., Yang, J.-H., et al.: Res. Astron. Astrophys. 14(9), 1135 (2014)
Fan, J.H., Yang, J.H., Liu, Y., et al.: Astron. Astrophys. Suppl. Ser. 226(2), 20 (2016)
Fan, J.H., Kurtanidze, S.O., Liu, Y., et al.: Astron. Astrophys. Suppl. Ser. 253(1), 10 (2021)
Fanaroff, B.L., Riley, J.M.: Mon. Not. R. Astron. Soc. Lett. 167, 31 (1974)
Ghisellini, G., Padovani, P., Celotti, A., et al.: Astrophys. J. 407, 65 (1993)
Ghisellini, G., Celotti, A., Fossati, G., et al.: Mon. Not. R. Astron. Soc. Lett. 301(2), 451 (1998)
Hartman, R.C., Bertsch, D.L., Bloom, S.D., et al.: Astron. Astrophys. Suppl. Ser. 123(1), 79 (1999)
Hovatta, T., Valtaoja, E., Tornikoski, M., et al.: Astron. Astrophys. 494(2), 527 (2009)
Lähteenmäki, A., Valtaoja, E.: Astrophys. J. 521(2), 493 (1999)
Lin, C., Fan, J.-H., Xiao, H.-B.: Res. Astron. Astrophys. 17(7), 066 (2017)
Lind, K.R., Blandford, R.D.: Astrophys. J. 295, 358 (1985)
Linford, J.D., Taylor, G.B., Romani, R.W., et al.: Astrophys. J. 726(1), 16 (2011)
Liodakis, I., Hovatta, T., Huppenkothen, D., et al.: Astrophys. J. 866(2), 137 (2018)
Mattox, J.R., Bertsch, D.L., Chiang, J., et al.: Astrophys. J. 410, 609 (1993)
Otero-Santos, J., Acosta-Pulido, J.A., Becerra González, J., Raiteri, C.M., Larionov, V.M., Peñil, P., Smith, P.S., Ballester Niebla, C., Borman, G.A., Carnerero, M.I., Castro Segura, N., Grishina, T.S., Kopatskaya, E.N., Larionova, E.G., Morozova, D.A., Nikiforova, A.A., Savchenko, S.S., Troitskaya, Y.V., Troitsky, I.S., Vasilyev, A.A., Villata, M.: Mon. Not. R. Astron. Soc. Lett. 492(4), 5524 (2020)
Padovani, P.: Astron. Astrophys. 256, 399 (1992)
Padovani, P., Giommi, P.: Mon. Not. R. Astron. Soc. Lett. 279(2), 526 (1996)
Pei, Z., Fan, J., Yang, J., et al.: Publ. Astron. Soc. Aust. 37, 043 (2020)
Planck Collaboration, Ade, P.A.R., Aghanim, N., et al.: Astron. Astrophys. 594, 13 (2016)
Raiteri, C.M., Villata, M., Larionov, V.M., et al.: Mon. Not. R. Astron. Soc. Lett. 504(4), 5629 (2021)
Sillanpaa, A., Haarala, S., Valtonen, M.J., et al.: Astrophys. J. 325, 628 (1988)
Stickel, M., Padovani, P., Urry, C.M., et al.: Astrophys. J. 374, 431 (1991)
Urry, C.M., Padovani, P.: Publ. Astron. Soc. Pac. 107, 803 (1995)
Wills, B.J., Wills, D., Breger, M., et al.: Astrophys. J. 398, 454 (1992)
Xiao, H.-B., Pei, Z.-Y., Xie, H.-J., et al.: Astrophys. Space Sci. 359, 39 (2015)
Xiao, H., Fan, J., Yang, J., et al.: Sci. China, Phys. Mech. Astron. 62(12), 129811 (2019)
Yang, J.H., Fan, J.H., Liu, Y., et al.: Astrophys. Space Sci. 362(12), 219 (2017)
Ye, X.-H., Fan, J.-H.: Publ. Astron. Soc. Jpn. 73(4), 775 (2021)
Yuan, Y.H., Fan, J.H.: Publ. Astron. Soc. Pac. 133(1025), 074101 (2021)
Zhang, L., Chen, S., Xiao, H., et al.: Astrophys. J. 897(1), 10 (2020)
Acknowledgements
We thank the anonymous referee for the comments, which has helped us to improve our manuscript.
Funding
This work is supported by the National Natural Science Foundation of China under Contract No. NSFC U2031201, NSFC 11733001, and NSFC U2031112, and partially supported by Natural Science Foundation of Guangdong Province under Contracts No. 2019B030302001, support for Astrophysics Key Subjects of Guangdong Province and Guangzhou City, and Guangzhou University under Contract No. YM2020001.
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Z.Y. Pei, J.H. Yang, J.H. Fan contributed to the study conception and design. Data collection and analysis were performed by X.T. Zeng, W.X. Yang, Y.H. Xuan, J.W. Huang, X.H. Ye and H.S. Huang. The first draft of the manuscript was written by X.H. Ye and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Ye, X.H., Zeng, X.T., Yang, W.X. et al. A study of the intrinsic \(\gamma\)-ray emission of Fermi/LAT-detected BL Lacs. Astrophys Space Sci 366, 110 (2021). https://doi.org/10.1007/s10509-021-04018-1
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DOI: https://doi.org/10.1007/s10509-021-04018-1