Correlation of X-ray and Infrared Emission of Radio-Quiet QSOs

1987 ◽  
pp. 607-609
Author(s):  
D. M. Worrall
Keyword(s):  
Infrared Emission ◽  
X Ray

scholarly journals Radio and infrared emission by O-type and related stars

1979 ◽  
Vol 83 ◽  
pp. 117-130 ◽  
Author(s):  
M. J. Barlow
Keyword(s):  
Thermal Emission ◽  
Infrared Emission ◽  
Close Binaries ◽  
Excellent Review ◽  
X Ray ◽  
X Ray Binaries

In addition to O-type stars, this review will discuss the radio and infrared properties of B supergiants and Wolf-Rayet stars, since it is generally accepted that these objects represent later stages in the evolution of O stars. The radio properties of X-ray binaries which exhibit non-thermal emission will not be discussed. Hjellming (1977) gives an excellent review of the radio properties of close binaries, including X-ray binaries.

scholarly journals Infrared Analysis of Supernova Remnants

1988 ◽  
Vol 101 ◽  
pp. 363-378 ◽  
Author(s):  
Eli Dwek
Keyword(s):  
Supernova Remnants ◽  
Infrared Emission ◽  
Infrared Analysis ◽  
Atomic Processes ◽  
Infrared Observations ◽  
X Ray ◽  
Physical Conditions ◽  
The Galaxy ◽  
Dust Grain ◽  
Astronomical Satellite

AbstractInfrared observations of supernova remnants obtained with the Infrared Astronomical Satellite provide new insights into the dynamics and energetics of the remnants, and into their interaction with the ambient interstellar medium. In most remnants the infrared emission arises from dust that is collisionally heated by the X-ray emitting gas. The infrared observations can therefore be used as a diagnostic for the physical conditions of the shocked gas. In particular, it is shown that all the prominent X-ray remnants in the Galaxy and in the LMC cool mainly by dust grain collisions instead of atomic processes.

scholarly journals A Novel DR/NIR T-Shaped AIEgen: Synthesis and X-Ray Crystal Structure Study

Crystals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 269 ◽  
Author(s):  
Rosita Diana ◽  
Ugo Caruso ◽  
Luigi Di Costanzo ◽  
Gelsomina Bakayoko ◽  
Barbara Panunzi
Keyword(s):  
Crystal Structure ◽  
Near Infrared ◽  
Condensation Product ◽  
Infrared Emission ◽  
Structure Study ◽  
X Ray ◽  
Hydrogen Bond Interactions ◽  
Main Plane ◽  
Donor Acceptor ◽  
Intramolecular Hydrogen

We developed a new benzodifuran derivative as the condensation product between 2,6-diamino-4-(4-nitrophenyl)benzo[1,2-b:4,5-b’]difuran-3,7-dicarboxylate and 3-hydroxy-2-naphthaldehyde. The intramolecular hydrogen-bond interactions in the terminal half-salen moieties produce a sterically encumbered highly conjugated main plane and a D-A-D (donor-acceptor-donor) T-shaped structure. The novel AIEgen (aggregation-induced enhanced emission generator) fulfils the requirement of RIR (restriction of intramolecular rotation) molecules. DR/NIR (deep red/near infrared) emission was recorded in solution and in the solid state, with a noteworthy photoluminescence quantum yield recorded on the neat crystals which undergo some mechanochromism. The crystal structure study of the probe from data collected at a synchrotron X-ray source shows a main aromatic plane π-stacked in a columnar arrangement.

scholarly journals Global One-armed Oscillations in the Be/X-ray Binary LS I +61° 235/RX J0146.9+6121

2000 ◽  
Vol 175 ◽  
pp. 719-722
Author(s):  
P. Reig ◽  
I. Negueruela ◽  
M.J. Coe ◽  
J. Fabregat ◽  
A.E. Tarasov
Keyword(s):  
Density Perturbation ◽  
Infrared Emission ◽  
High Density ◽  
X Ray ◽  
Oscillation Model ◽  
Be Star ◽  
Long Term Monitoring ◽  
Term Monitoring

AbstractWe present results of our long-term monitoring of LS I +61° 235 in the optical and infrared bands. This Be/X-ray binary exhibits V/R variability in the Hα line, which can be explained in the framework of the Global One-armed Oscillation model: a high density perturbation moves around inside the circumstellar disc of the Be star. The V>R and V<R peaks occur when the perturbation moves towards and away from the observer, respectively. In this work we show that the perturbation also affects the He I λ6678Å and Paschen lines. We also report on a correlation between the infrared emission and the V/R variability.

scholarly journals X-RAY ABSORPTION, NUCLEAR INFRARED EMISSION, AND DUST COVERING FACTORS OF AGNs: TESTING UNIFICATION SCHEMES

2016 ◽  
Vol 819 (2) ◽  
pp. 166 ◽  
Author(s):  
S. Mateos ◽  
F. J. Carrera ◽  
A. Alonso-Herrero ◽  
A. Hernán-Caballero ◽  
X. Barcons ◽  
...  
Keyword(s):  
Infrared Emission ◽  
X Ray ◽  
X Ray Absorption

Thermal Analysis of Coal-Bearing Strata Kaolinite/potassium Acetate Intercalation Complex

2012 ◽  
Vol 538-541 ◽  
pp. 2077-2081
Author(s):  
Xiang Yao ◽  
Shuai Zhang ◽  
Bo Sun
Keyword(s):  
Thermal Decomposition ◽  
Potassium Acetate ◽  
Adsorbed Water ◽  
Infrared Emission ◽  
Sufficient Evidence ◽  
X Ray Diffraction ◽  
Intercalation Complex ◽  
X Ray ◽  
Basal Distance ◽  
Coordination Water

The thermal decomposition of coal-bearing strata kaolinite-potassium acetate(CK/KAc) intercalation complex has been studied using X-ray diffraction (XRD), thermogravimetry and differential thermogravimetric (TG-DTG) and infrared emission spectroscopy (IES). The XRD results show that the KAc has been successfully intercalated into coal-bearing strata kaolinite with an obvious basal distance increase of the first basal peak. The TG results show that the thermal decomposition of the intercalation complex occurs in four main steps (a) the loss of adsorbed water (b) the loss of coordination water (c) the loss of potassium acetate and (d) water through dehydroxylation. The IES of CK/KAc give the evidence on the changes of structure. These make all explanation have the sufficient evidence.

scholarly journals Origins of the Long-term Variability of the Near-infrared Emission of the Black Hole X-Ray Binary GRS 1915+105 in the X-Ray Low Luminous State

2021 ◽  
Vol 916 (2) ◽  
pp. 114
Author(s):  
Fumiya Imazato ◽  
Mahito Sasada ◽  
Makoto Uemura ◽  
Yasushi Fukazawa ◽  
Hiromitsu Takahashi ◽  
...  
Keyword(s):  
Black Hole ◽  
Near Infrared ◽  
Infrared Emission ◽  
X Ray ◽  
Near Infrared Emission

scholarly journals Infrared Emission from Four be Stars Optical Counterparts of Galactic X-Ray Sources

1982 ◽  
Vol 98 ◽  
pp. 247-251
Author(s):  
P. Persi ◽  
M. Ferrari-Toniolo ◽  
G.L. Grasdalen
Keyword(s):  
Energy Distribution ◽  
Electron Density ◽  
Stellar Wind ◽  
Infrared Emission ◽  
Circumstellar Disk ◽  
Be Stars ◽  
Infrared Excess ◽  
Infrared Observations ◽  
X Ray ◽  
Be Star

Preliminary results of our infrared observations from 2.3 up to 10 and 20 microns of the Be-X-ray stars X Per, γ Cas and HDE 245770, indicate the presence of an ionized circumstellar disk with an electron density law of the type ne ∝ r−3.5. x Per and γ Cas show besides, variable infrared excess at 10μ suggesting variability in the stellar wind. LS I+65°010 presents an anomalous infrared energy distribution for a Be star.

scholarly journals Radio, Infrared and X-Ray Observations of GRS 1915+105

1997 ◽  
Vol 163 ◽  
pp. 701-702
Author(s):  
R.P. Fender ◽  
G.G. Pooley ◽  
C.R. Robinson ◽  
B.A. Harmon ◽  
S.N. Zhang ◽  
...  
Keyword(s):  
Infrared Emission ◽  
Emission Lines ◽  
X Ray ◽  
Multiwavelength Observations

AbstractWe present multiwavelength observations of the superluminal jet source GRS 1915+105 in 1996 April–May, over which period a variety of phenomena, including radio QPO, strong infrared emission lines and rapid X-ray flickering and outbursts were observed.

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