Results 21 to 30 of about 293 (94)

Erratum: A quasar microlensing light-curve generator for LSST [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
Timo Anguita, Timo Anguita, Favio Neira, G. Vernardos   +3 more
openaire   +2 more sources

Discovery of spectacular quasar-driven superbubbles in red quasars. [PDF]

Sci Adv, 2023
Shen L, Liu G, He Z, Zakamska NL, Glikman E, Greene JE, Hu W, Mou G, Wylezalek D, Rupke DSN.   +9 more
europepmc   +1 more source

Theoretical quasar emission line ratios. IV - General asymptotic escape probabilities and the effects of linear Stark broadening

The Astrophysical Journal, 1981
Established techniques permitting the evaluation of exact asymptotic forms of photon escape probabilities for a wide range of absorption coefficient profile types are used for QSO radiative transfer effect studies, and it is shown that the exact formulae are easily evaluated.
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Tracing the massive inflows feeding super-massive black holes in quasars. [PDF]

Innovation (Camb), 2023
Jiang P, Shi X, Zhou H.
europepmc   +1 more source

Optimizing over Multiple Distributions under Generalized Quasar-Convexity Condition

We study a typical optimization model where the optimization variable is composed of multiple probability distributions. Though the model appears frequently in practice, such as for policy problems, it lacks specific analysis in the general setting.
Ding, Shihong, Yang, Long, Luo, Luo, Fang, Cong   +3 more
openaire   +2 more sources

Optimal distribution of VLBI transmitters in the Galileo space segment for frame ties. [PDF]

Earth Planets Space, 2023
Wolf H, Böhm J.
europepmc   +1 more source

Improved technique for quasar composite spectra generation [PDF]

Proceedings of VI European Summer School on Experimental Nuclear Astrophysics — PoS(ENAS 6), 2013
Olga Sergijenko, Olena Torbaniuk, Ganna Ivashchenko   +2 more
openaire   +1 more source

Erratum

Monthly Notices of the Royal Astronomical Society, 2020
The paper A quasar microlensing light-curve generator for LSST was published in MNRAS, 495, 1, 544–553 (2020). The rest frame wavelength (?0) selected to simulate the accretion discs sizes is not specified in table 1 or the text, precluding the reproducibility of the results.We provide an updated version of the Table 1 with themissing parameter above ...
Neira, Favio, Anguita, Timo, Vernardos, Georgios   +2 more
openaire   +1 more source

Astroinformatics of galaxies and quasars: a new general method for photometric redshifts estimation

, 2012
The catalogs are available as Cone Searches in the Virtual Observatory. Contact olaurino@head.cfa.harvard.edu AbstractWith the availability of the huge amounts of data produced by current and future large multiband photometric surveys, photometric redshifts have become a crucial tool for extragalactic astronomy and cosmology. In this paper we present a
openaire   +1 more source

Shared Stochastic Gaussian Process Latent Variable Models: A Multi-modal Generative Model for Quasar Spectra

This work proposes a scalable probabilistic latent variable model based on Gaussian processes (Lawrence, 2004) in the context of multiple observation spaces. We focus on an application in astrophysics where data sets typically contain both observed spectral features and scientific properties of astrophysical objects such as galaxies or exoplanets.
Lalchand, Vidhi, Eilers, Anna-Christina
openaire   +2 more sources