85 research outputs found
The Spirit Has No Colour: Film Screening Q & A
No full textRecording of panel discussion for the film screening on The Spirit Has No Colour. Panel includes Jerry Adams and Rick Lavallee, moderated by Nathan Edelson
Correlated long-term optical and x-ray variations in NGC 5548
No full textWe combine the long-term optical light curve of the Seyfert 1 galaxy NGC5548 with the X-ray light curve measured by the Rossi X-ray Timing Explorer over 6 years, to determine the relationship between the optical and X-ray continua. The X-ray light curve is strongly correlated with the optical light curve on long (~year) time-scales. The amplitude of the long-term optical variability in NGC5548 is larger than that of the X-ray variability (after accounting for the host galaxy contribution), implying that X-ray reprocessing is not the main source of the optical/X-ray correlation. The correlated X-ray and optical variations in NGC5548 may be caused by instabilities in the inner part of the accretion flow, where both the X-ray and optical emission regions may be locate
She was always a writer, but now she's a published writer
No full textMarjorie Edelson, author of novel Malkeh and Her Childre
Comments on the conceptualization of case study/s in psychoanalysis according to Marshall Edelson
No full textEl presente trabajo forma parte del plan investigación de una beca de posgrado (Universidad Nacional de La Plata) en torno a la utilización del Diseño de Estudios de Casos (DECs) en el psicoanálisis actual y del proyecto de investigación “Debates epistemológicos y metodológicos en torno a la construcción de conocimiento en psicoanálisis” (UNLP). Se tiene por objetivo presentar las ideas del psiquiatra Marshall Edelson sobre Estudios de Casos en su obra Psychoanalysis, a theory in crisis (1990), con un tratamiento escaso en el ámbito local. El texto aborda temáticas actuales y revive las polémicas suscitadas por la utilización de los DECs en el psicoanálisis.
En esta oportunidad se presentan las elaboraciones teóricas del autor así como su análisis reflexivo, con el objetivo de realizar un aporte al campo de las discusiones contemporáneas sobre el estatuto científico-metodológico del psicoanálisis en la actualidad. Edelson mantiene un intercambio tanto con quienes sostienen que el psicoanálisis no posee credibilidad científica por no utilizar otros métodos de indagación, así como con quienes afirman que esta disciplina no necesita ajustarse a los cánones de procedimiento y racionalidad científica.This work is part of the research plan of a postgraduate scholarship (Universidad Nacional de La Plata) around the use of Case Study Design (CSD) in current Psychoanalysis and of the research project "Epistemological and methodological debates around the construction of knowledge in psychoanalysis" (UNLP). The aim is to present the ideas of psychiatrist Marshall Edelson on Case Studies in his work "Psychoanalysis, a theory in crisis" (1988), with little treatment at the local level. The text deals with current topics and revives the polemics raised by the use of CSD in Psychoanalysis.
In this opportunity the theoretical elaborations of the author are presented as well as his reflexive analysis, with the objective of making a contribution to the field of the contemporary discussions on the scientific methodological statute of the Psychoanalysis in the present time. Edelson maintains an exchange both with those who maintain that Psychoanalysis does not have scientific credibility because it does not use other methods of investigation, as well as with those who affirm that this discipline does not need to adjust to the canons of procedure and scientific rationality.Facultad de Psicologí
Accretion disk reverberation with Hubble Space Telescope observations of NGC 4593 : evidence for diffuse continuum lags
No full textK.H. acknowledges support from STFC grant ST/M001296/1.The Seyfert 1 galaxy NGC 4593 was monitored spectroscopically with the Hubble Space Telescope as part of a reverberation mapping campaign that also included Swift, Kepler and ground-based photometric monitoring. During 2016 July 12 - August 6, we obtained 26 spectra across a nearly continuous wavelength range of ~1150 - 10,000 Å. These were combined with Swift data to produce a UV/optical "lag spectrum", which shows the interband lag relative to the Swift UVW2 band as a function of wavelength. The broad shape of the lag spectrum appears to follow the τ ∝ λ 4/3 relation seen previously in photometric interband lag measurements of other active galactic nuclei (AGN). This shape is consistent with the standard thin disk model but the magnitude of the lags implies a disk that is a factor of ~3 larger than predicted, again consistent with what has been previously seen in other AGN. In all cases these large disk sizes, which are also implied by independent gravitational microlensing of higher-mass AGN, cannot be simply reconciled with the standard model. However the most striking feature in this higher resolution lag spectrum is a clear excess around the 3646 Å Balmer jump. This strongly suggests that diffuse emission from gas in the much larger broad-line region (BLR) must also contribute significantly to the interband lags. While the relative contributions of the disk and BLR cannot be uniquely determined in these initial measurements, it is clear that both will need to be considered in comprehensively modeling and understanding AGN lag spectra.Peer reviewe
A Study of Companies with Abnormally Favorable Patterns of Executive Stock Option Grant Timing
No full textRecommended from our members
Infrared-selected Active Galactic Nuclei in the Kepler Fields
No full textWe utilized the R. Edelson & M. Malkan and D. Stern et al. selection techniques and other methods to identify active galactic nuclei (AGN) candidates that were monitored during the Kepler prime and K2 missions. Subsequent to those observations, we obtained 125 long-slit optical spectra with the Lick 3 m telescope, 58 spectra with the Palomar 5 m telescope, and three spectra with the Keck 10 m telescope to test these identifications. Of these 186 AGN candidates, 105 were confirmed as Type 1 AGN and 35 as Type 2 AGN, while the remaining 46 were found to have other identifications (e.g., stars and normal galaxies). This indicated an overall reliability of ∼75%, while the two main methods had much higher reliability, 87%-96%. The spectra indicated redshifts out to z = 3.4. Then, we examined the AGN sample properties through the Baldwin-Phillips-Terlevich diagram and compared the AGNs’ spectral energy distributions with those from the literature. We found that our sample yielded the same AGN population as those identified through other methods, such as optical spectroscopy
A Cutoff in the X‐Ray Fluctuation Power Density Spectrum of the Seyfert 1 Galaxy NGC 3516
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