Report
Changing look AGN Mrk 590: Broad line region and black hole mass from photometric reverberation mapping
| العنوان: | Changing look AGN Mrk 590: Broad line region and black hole mass from photometric reverberation mapping |
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| المؤلفون: | Mandal, Amit Kumar, Schramm, Malte, Rakshit, Suvendu, Stalin, C. S., Vijarnwannaluk, Bovornpratch, Rujopakarn, Wiphu, Poshyachinda, Saran, Kouprianov, Vladimir V., Haislip, Joshua B., Reichart, Daniel E., Sagar, Ram, Mathew, Blesson |
| سنة النشر: | 2021 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Astrophysics of Galaxies |
| الوصف: | We present the results of photometric reverberation mapping observations on the changing look active galactic nucleus Mrk 590 at z = 0.026. The observations were carried out from July to December, 2018 using broad band B, R and narrow band H{\alpha} and S II filters. B-band traces the continuum emission from the accretion disk, R-band encompasses both the continuum emission from the accretion disk and the redshifted H{\alpha} line from the broad line region (BLR), S II band contains the redshifted H{\alpha} emission and the H{\alpha} band traces the continuum emission underneath the S II band. All the light curves showed strong variation with a fractional root-mean-square variation of 0.132 (+/-) 0.001 in B-band and 0.321 (+/-) 0.001 in H{\alpha} line. From cross-correlation function analysis, we obtained a delayed response of H{\alpha} line emission to the optical B-band continuum emission of 21.44(+1.49/-2.11) days in the rest-frame of the source, corresponding to a linear size of the BLR of 0.018 pc. This is consistent with previous estimates using H{\beta}. By combining the BLR size with the H{\alpha} line full width at half maximum of 6478 (+/-) 240 km/s measured from a single-epoch spectrum obtained with the Subaru telescope, we derived a black hole mass of 1.96 (+0.15 / -0.21) X 10^8 Msun. Comment: 16 pages, 12 figures, 4 tables, Accepted for publication in Monthly Notices of the Royal Astronomical Society (MNRAS), 5 October 2021 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1093/mnras/stab2909 |
| URL الوصول: | http://arxiv.org/abs/2110.02055 |
| رقم الانضمام: | edsarx.2110.02055 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1093/mnras/stab2909 |
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