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Title:Wavelength-resolved reverberation mapping of quasar CTS C30.10: Dissecting Mg II and Fe II emission regions
Authors:ID Prince, Raj (Author)
ID Zajaček, Michal (Author)
ID Czerny, Bożena (Author)
ID Trzcionkowski, Piotr (Author)
ID Bronikowski, Mateusz, Centre for Astrophysics and Cosmology, University of Nova Gorica, Vipavska 11c, 5270 Ajdovščina, Slovenia (Author)
ID Sobrino Figaredo, Catalina (Author)
ID Panda, Swayamtrupta (Author)
ID Martinez-Aldama, Mary Loli (Author)
ID Hryniewicz, Krzysztof (Author)
ID Kumar Jaiswal, Vikram (Author)
ID Śniegowska, Marzena (Author)
ID Naddaf, Mohammad-Hassan (Author)
ID Bilicki, Maciej (Author)
ID Haas, Martin (Author)
ID Jacek Sarna, Marek (Author)
ID Karas, Vladimir (Author)
ID Olejak, Aleksandra (Author)
ID Przyłuski, Robert (Author)
ID Rałowski, Mateusz (Author)
ID Udalski, Andrzej (Author)
ID Sefako, Ramotholo R. (Author)
ID Genade, Anja (Author)
ID Worters, Hannah L. (Author)
Files:.pdf aa43194-22.pdf (3,50 MB)
MD5: DA45E4BA78859E37B798EDF5C3C5B7AD
 
URL https://www.aanda.org/10.1051/0004-6361/202243194/pdf
 
Language:English
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:Context. We present the results of the reverberation monitoring of the Mg II broad line and Fe II pseudocontinuum for the luminous quasar CTS C30.10 (z = 0.90052) with the Southern African Large Telescope in 2012–2021. Aims. We aimed at disentangling the Mg II and UV Fe II variability and the first measurement of UV Fe II time delay for a distant quasar. Methods. We used several methods for the time-delay measurements and determined the Fe II and Mg II time delays. We also performed a wavelength-resolved time delay study for a combination of Mg II and Fe II in the 2700–2900 Å rest-frame wavelength range. Results. We obtain a time delay for Mg II of 275.5−19.5+12.4 days in the rest frame, and we have two possible solutions of 270.0−25.3+13.8 days and 180.3−30.0+26.6 in the rest frame for Fe II. Combining this result with the old measurement of Fe II UV time delay for NGC 5548, we discuss for first time the radius-luminosity relation for UV Fe II with the slope consistent with 0.5 within the uncertainties. Conclusions. Because the Fe II time delay has a shorter time-delay component but the lines are narrower than Mg II, we propose that the line-delay measurement is biased toward the part of the broad line region (BLR) facing the observer. The bulk of the Fe II emission may arise from the more distant BLR region, however, the region that is shielded from the observer.
Keywords:accretion, accretion disks / quasars: emission lines / quasars: individual: CTS C30.10 / techniques: spectroscopic / techniques: photometric
Publication version:Version of Record
Publication date:01.11.2022
Year of publishing:2022
Number of pages:20
Numbering:A&A, 667
PID:20.500.12556/RUNG-8627 New window
COBISS.SI-ID:171878147 New window
DOI:10.1051/0004-6361/202243194 New window
NUK URN:URN:SI:UNG:REP:TFG9SMLH
Publication date in RUNG:13.11.2023
Views:734
Downloads:4
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Record is a part of a journal

Title:Astronomy & Astrophysics
Year of publishing:2022

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License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

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