Strong FeII emission in NLS1s: An unsolved mystery
2019 ◽
Vol 15
(S341)
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pp. 297-298
Keyword(s):
AbstractIn Panda et al.2018a, we constructed a refined sample from the original Shen et al.(2011) QSO catalog. Based on our hypothesis — the main driver of the Quasar Main Sequence is the maximum of the accretion disk temperature (TBBB) defined by the Big Blue Bump on the Spectral Energy Distribution (Panda et al.2017; Panda et al.2018b). We select the four extreme sources that have RFeII ⩾ 4.0 and use {CIGALE (Boquien et al.2018) to fit their multi—band photometric data. We also perform detailed spectral fitting including the Fe II pseudo—continuum (based on Śniegowska et al.2018)) to estimate and compare the value of RFEII. We show the dependence of FeII strength on changing metallicity.
Timing the earliest quenching events with a robust sample of massive quiescent galaxies at 2 < z < 5
2020 ◽
Vol 496
(1)
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pp. 695-707
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2012 ◽
Vol 8
(S295)
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pp. 319-319
2020 ◽
Vol 495
(1)
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pp. 835-863
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2016 ◽
Vol 11
(S322)
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pp. 231-232
2019 ◽
Vol 15
(S341)
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pp. 287-288
2021 ◽
Vol 57
(1)
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pp. 167-179
2016 ◽
Vol 12
(S324)
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pp. 192-195
2012 ◽
Vol 124
(921)
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pp. 1208-1218
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