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- Massachusetts Institute of TechnologyUS53 papers
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12 papers · 1 filter
Modelling correlated variability in accreting black holes: the effect of high density and variable ionisation on reverberation lags
Guglielmo Mastroserio, Adam Ingram, Jingyi Wang +9
We present a new release of the RELTRANS model to fit the complex cross-spectrum of accreting black holes as a function of energy. The model accounts for continuum lags and reverbe…
A systematic study of photoionized emission and warm absorption signatures of the NLS1 Mrk 335
H. Liu, M. L. Parker, J. Jiang +4
We present an analysis of all the archival high resolution spectra of the Narrow-line Seyfert 1 galaxy Mrk~335 obtained with Reflection Grating Spectrometer (RGS) on board \textit{…
The mass-metallicity relation at z~1-2 and its dependence on star formation rate
Alaina Henry, Marc Rafelski, Ben Sunnquist +24
We present a new measurement of the gas-phase mass-metallicity relation (MZR), and its dependence on star formation rates (SFRs) at 1.3 < z < 2.3. Our sample comprises 1056 galaxie…
The Cosmic Ultraviolet Baryon Survey (CUBS) -- III. Physical properties and elemental abundances of Lyman limit systems at
Fakhri S. Zahedy, Hsiao-Wen Chen, Thomas M. Cooper +18
(Abridged) We present a systematic investigation of physical conditions and elemental abundances in four optically thick Lyman-limit systems (LLSs) at discovered withi…
NICER uncovers the transient nature of the type-B quasi-periodic oscillation in the black hole candidate MAXI J1348-630
L. Zhang, D. Altamirano, P. Uttley +13
We present a systematic spectral-timing analysis of a fast appearance/disappearance of a type-B quasi-periodic oscillation (QPO), observed in four NICER observations of MAXI J1348-…
A study of the photometric and spectroscopic variations of the prototypical FU Orionis-type star V1057 Cyg
Zs. M. Szabó, Á. Kóspál, P. Ábrahám +19
Among the low-mass pre-main sequence stars, a small group called FU Orionis-type objects (FUors) are notable for undergoing powerful accretion outbursts. V1057 Cyg, a classical exa…