Browsing by Title
Now showing items 143033-143052 of 143390
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X-ray observations of up-down impurity density asymmetries in Alcator C-Mod plasmas
(MIT Plasma Science and Fusion Center, 1996-01-01) -
X-ray periodicities in sources observed by the RXTE ASM
(Massachusetts Institute of Technology, 2005)The X-ray intensities measured from 230 X-ray sources observed by the RXTE All-Sky Monitor (ASM) were analyzed for periodic behavior. The ASM has been observing sources for nine years in the 1.5-12 keV energy range. In ... -
X-ray phase contrast imaging of preclinical atherosclerosis
(Massachusetts Institute of Technology, 2016)Atherosclerosis is the leading causes of mortality and morbidity in the world. While there are a plethora of methods for treating clinical atherosclerosis, the primary cause of mortality is acute coronary syndrome (ACS) ... -
X-ray photoelectron spectroscopy of silicate glasses
(Massachusetts Institute of Technology, 1987) -
X-ray photon correlation spectroscopy studies of the dynamics of self-assembling block copolymer structures
(Massachusetts Institute of Technology, 2004)Several improvements presented to the emerging technique of X-ray Photon Correlation Spectroscopy. These improvements enabled the study of polymer structures, in particular isotropic sponge phases of homo-polymer block ... -
X-ray power density spectra of black hole binaries : a new deadtime model for the RXTE PCA
(Massachusetts Institute of Technology, 2006)The power density spectrum is an essential tool for determining the frequency content of X-ray radiation from astronomical sources. For neutron star systems, power density spectra reveal coherent oscillations for those ... -
X-RAY PROPERTIES OF LOW-MASS PRE-MAIN SEQUENCE STARS IN THE ORION TRAPEZIUM CLUSTER
(IOP Publishing, 2015-08)The Chandra HETG Orion Legacy Project (HOLP) is the first comprehensive set of observations of a very young massive stellar cluster that provides high-resolution X-ray spectra of very young stars over a wide mass range ... -
X-Ray Properties of SPT-selected Galaxy Clusters at 0.2
(American Astronomical Society, 2019)© 2019. The American Astronomical Society. All rights reserved. We present measurements of the X-ray observables of the intracluster medium (ICM), including luminosity L X , ICM mass M ICM , emission-weighted mean temperature ... -
X-Ray Properties of SPT-selected Galaxy Clusters at 0.2
© 2019. The American Astronomical Society. All rights reserved. We present measurements of the X-ray observables of the intracluster medium (ICM), including luminosity L X , ICM mass M ICM , emission-weighted mean temperature ... -
THE X-RAY PROPERTIES OF THE BLACK HOLE TRANSIENT MAXI J1659-152 IN QUIESCENCE
(Institute of Physics/American Astronomical Society, 2013-09)We present new Chandra X-ray observations of the transient black hole X-ray binary MAXI J1659-152 in quiescence. These observations were made more than one year after the end of the source's 2010-2011 outburst. We detect ... -
X-RAY PROPERTIES OF THE FIRST SUNYAEV-ZEL'DOVICH EFFECT SELECTED GALAXY CLUSTER SAMPLE FROM THE SOUTH POLE TELESCOPE
(IOP Publishing, 2011-08)We present results of X-ray observations of a sample of 15 clusters selected via their imprint on the cosmic microwave background from the thermal Sunyaev-Zel'dovich (SZ) effect. These clusters are a subset of the first ... -
THE X-RAY PROPERTIES OF TYPICAL HIGH-REDSHIFT RADIO-LOUD QUASARS
(IOP Publishing, 2011-08)We report spectral, imaging, and variability results from four new XMM-Newton observations and two new Chandra observations of high-redshift (z ≳4) radio-loud quasars (RLQs). Our targets span lower, and more representative, ... -
X-ray quasi-periodic eruptions from two previously quiescent galaxies
(Springer Science and Business Media LLC, 2021)<jats:title>Abstract</jats:title><jats:p>Quasi-periodic eruptions (QPEs) are very-high-amplitude bursts of X-ray radiation recurring every few hours and originating near the central supermassive black holes of galactic ... -
X-RAY REFLECTION SPECTROSCOPY OF THE BLACK HOLE GX 339–4: EXPLORING THE HARD STATE WITH UNPRECEDENTED SENSITIVITY
(IOP Publishing, 2015-10)We analyze simultaneously six composite RXTE spectra of GX 339–4 in the hard state comprising 77 million counts collected over 196 ks. The source spectra are ordered by luminosity and span the range 1.6%–17% of the Eddington ... -
X-ray response of silicon surface barrier diodes at 8 and 17.5 keV: evidence that the x-ray sensitive depth is not generally the depletion depth
(MIT Plasma Science and Fusion Center, 1988-01-01) -
X-ray scattering and molecular modeling of novel semicrystalline polyimides
(Massachusetts Institute of Technology, 1994) -
X-RAY SCATTERING ECHOES AND GHOST HALOS FROM THE INTERGALACTIC MEDIUM: RELATION TO THE NATURE OF AGN VARIABILITY
(IOP Publishing, 2015-05)X-ray bright quasars might be used to trace dust in the circumgalactic and intergalactic medium through the phenomenon of X-ray scattering, which is observed around Galactic objects whose light passes through a sufficient ... -
X-Ray scattering investigations of subtle ordering in correlated materials
(Massachusetts Institute of Technology, 2015)The interaction of many particles can lead to spectacular new phases of matter whose properties and collective excitations bear little resemblance to the individual particles and interactions. Understanding how the macroscopic ... -
X-Ray Scattering Spectroscopy
(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1977-01) -
X-Ray Scattering Spectroscopy
(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1978-01)
