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Title: A NuSTAR view of powerful γ-ray loud blazars

Abstract

In this study, we observed three blazars at z > 2 with the NuSTARsatellite. These were detected in the γ-rays by Fermi/LAT and in the soft X-rays, but have not yet been observed above 10 keV. The flux and slope of their X-ray continuum, together with Fermi/LAT data allows us to estimate their total electromagnetic output and peak frequency. For some of them we were able to study the source in different states, and investigate the main cause of the different observed spectral energy distribution. We then collected all blazars at redshifts greater than 2 observed by NuSTAR, and confirm that these hard and luminous X-ray blazars are among the most powerful persistent sources in the Universe. Finally, we confirm the relation between the jet power and the disk luminosity, extending it at the high-energy end.

Authors:
 [1];  [2];  [3];  [1];  [4];  [5];  [6];  [1];  [1]
  1. INAF – Osservatorio Astronomico di Brera, Merate (Italy)
  2. Space Science Data Center – Agenzia Spaziale Italiana (SSDC–ASI), Via del Politecnico, Roma (Italy); NAF–Osservatorio Astronomico di Roma (Italy)
  3. Space Science Data Center – Agenzia Spaziale Italiana (SSDC–ASI), Via del Politecnico, Roma (Italy)
  4. Univ. Milano–Bicocca (Italy)
  5. Scuola Internazionale Superiore di Studi Avanzati, Trieste (Italy)
  6. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1546897
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Astronomy and Astrophysics
Additional Journal Information:
Journal Volume: 627; Journal ID: ISSN 0004-6361
Publisher:
EDP Sciences
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; radiation mechanisms: non-thermal; relativistic processes; γ rays: general; X-rays: general

Citation Formats

Ghisellini, G., Perri, M., Costamante, L., Tagliaferri, G., Sbarrato, T., Campitiello, S., Madejski, G., Tavecchio, F., and Ghirlanda, G. A NuSTAR view of powerful γ-ray loud blazars. United States: N. p., 2019. Web. doi:10.1051/0004-6361/201935750.
Ghisellini, G., Perri, M., Costamante, L., Tagliaferri, G., Sbarrato, T., Campitiello, S., Madejski, G., Tavecchio, F., & Ghirlanda, G. A NuSTAR view of powerful γ-ray loud blazars. United States. doi:10.1051/0004-6361/201935750.
Ghisellini, G., Perri, M., Costamante, L., Tagliaferri, G., Sbarrato, T., Campitiello, S., Madejski, G., Tavecchio, F., and Ghirlanda, G. Mon . "A NuSTAR view of powerful γ-ray loud blazars". United States. doi:10.1051/0004-6361/201935750.
@article{osti_1546897,
title = {A NuSTAR view of powerful γ-ray loud blazars},
author = {Ghisellini, G. and Perri, M. and Costamante, L. and Tagliaferri, G. and Sbarrato, T. and Campitiello, S. and Madejski, G. and Tavecchio, F. and Ghirlanda, G.},
abstractNote = {In this study, we observed three blazars at z > 2 with the NuSTARsatellite. These were detected in the γ-rays by Fermi/LAT and in the soft X-rays, but have not yet been observed above 10 keV. The flux and slope of their X-ray continuum, together with Fermi/LAT data allows us to estimate their total electromagnetic output and peak frequency. For some of them we were able to study the source in different states, and investigate the main cause of the different observed spectral energy distribution. We then collected all blazars at redshifts greater than 2 observed by NuSTAR, and confirm that these hard and luminous X-ray blazars are among the most powerful persistent sources in the Universe. Finally, we confirm the relation between the jet power and the disk luminosity, extending it at the high-energy end.},
doi = {10.1051/0004-6361/201935750},
journal = {Astronomy and Astrophysics},
number = ,
volume = 627,
place = {United States},
year = {2019},
month = {7}
}

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