Journal
ASTRONOMY & ASTROPHYSICS
Volume 640, Issue -, Pages -Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361/202038513
Keywords
galaxies: active; galaxies: individual: Mrk 266; X-rays: galaxies
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Funding
- National Aeronatutics and Space Administration
- Spanish MICINN [PID2019105510GB-C33]
- CASSACA
- CONICYT fund CAS-CONICYT Call 2018
- Fondecyt Iniciacion grant [11190831]
- NASA Astrophysics Data Analysis Program (ADAP) Grant [80NSSC20K0450]
- NSF [AST 1816838]
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We present the results from our analysis of NuSTAR data of the luminous infrared galaxy Mrk 266, which contains two nuclei, south-western (SW) and north-eastern (NE), which were resolved in previous Chandra imaging. Combining this with the Chandra data, we intepret the hard X-ray spectrum obtained from a NuSTAR observation to result from a steeply rising flux from a Compton-thick active galactic nuclei (AGN) in the SW nucleus which is very faint in the Chandra band, confirming the previous claim. This hard X-ray component is dominated by reflection, and its intrinsic 2-10 keV luminosity is likely to be similar to 1x10(43) erg s(-1). Although it is bright in soft X-ray, only a moderately absorbed NE nucleus has a 2-10 keV luminosity of 4x10(41) erg s(-1), placing it in the low-luminosity AGN class. These results have implications for understanding the detectability and duty cycles of emission from dual AGN in heavily obscured mergers.
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