Results 21 to 30 of about 2,168,923 (219)

The high energy instrument PDS on-board the BeppoSAX X{ray astronomy satellite

, 1997
BeppoSAX/PDS experiment is one of four narrow eld instruments of the BeppoSAX payload, that also includes two wide eld cameras. The goal of PDS is to extend the energy range of BeppoSAX to hard X{rays.
F. Frontera, E. Costa, D. Fiume, M. Feroci, L. Nicastro, M. Orlandini, E. Palazzi, G. Zavattini   +7 more
semanticscholar   +1 more source

NASA needs and trends in cryogenic cooling [PDF]

, 1983
Projected NASA needs in spaceborne cryogenic systems and recent results of NASA cryogenic cooling technology efforts in infrared astronomy, X-ray astronomy, gamma ray astronomy, liquid helium and space stations are ...
Sherman, A.
core   +1 more source

XMM-Newton (X-Ray Mulit-Mirror Mission) Observatory [PDF]

Opt. Eng. 51, 011009, 2012, 2012
X-ray Multi-Mirror Mission (XMM-Newton) has been one of the most successful astronomy missions launched by the European Space Agency. It exploits innovative use of replication technology for the X-ray reflecting telescopes that has resulted in an unprecedented combination of effective area and resolution.
arxiv   +1 more source

A Compact X-ray Source and Possible X-ray Jets within the Planetary Nebula Menzel 3 [PDF]

Astrophys.J. 591 (2003) L37-L40, 2003
We report the discovery, by the Chandra X-ray Observatory, of X-ray emission from the bipolar planetary nebula Menzel 3. In Chandra CCD imaging, Mz 3 displays hot (3-6x10^6 K) gas within its twin, coaxial bubbles of optical nebulosity, as well as a compact X-ray source at the position of its central star(s).
arxiv   +1 more source

Parameter estimation in X-ray astronomy using maximum likelihood

, 1979
Methods of estimation of parameter values and confidence regions by maximum likelihood and Fisher efficient scores starting from Poisson probabilities are developed for the nonlinear spectral functions commonly encountered in X-ray astronomy.
K. Wachter, R. Leach, E. Kellogg
semanticscholar   +1 more source

The LAUE project for broadband gamma-ray focusing lenses

, 2011
We present the LAUE project devoted to develop an advanced technology for building a high focal length Laue lens for soft gamma--ray astronomy (80-600 keV).
Attiná, P., Caroli, E., Cassese, F., Frontera, F., Liccardo, V., Mottini, S., Negri, B., Pecora, M., Recanatesi, L., Stephen, J. B., Valsan, V., Virgilli, E.   +11 more
core   +1 more source

Spectral Signatures of KiloHertz Quasi-Periodic Oscillations from Accreting Neutron Stars [PDF]

, 2000
Correlations discovered between millisecond timing properties and spectral properties in neutron star x-ray binaries are described and then interpreted in relation to accretion flows in the systems.
Kaaret, Philip
core   +3 more sources

Optical Identifications of Five INTEGRAL Hard X-ray Sources in the Galactic Plane Region [PDF]

, 2008
The results of optical identifications of five hard X-ray sources in the Galactic plane region from the INTEGRAL all-sky survey are presented. The X-ray data on one source (IGRJ20216+4359) are published for the first time.
Bikmaev, I. F., Burenin, R. A., Pavlinsky, M. N., Revnivtsev, M. G., Sakhibullin, N. A., Sazonov, S. Yu., Sunyaev, R. A.   +6 more
core   +3 more sources

The high pressure gas scintillation proportional counter on-board the BeppoSAX X-ray astronomy satellite

, 1997
In this paper we describe the High Pressure Gas Scintillation Proportion Counter, one of the Narrow Field Instrument of the X–ray astronomy satellite BeppoSAX.
G. Manzo, S. Giarrusso, A. Santangelo, F. Ciralli, G. Fazio, S. Piraino, A. Segreto   +6 more
semanticscholar   +1 more source

Fourth Time's a XARM [PDF]

arXiv, 2018
Arguably, no mission changed X-ray astronomy in as short a time as did Hitomi. The planned X-ray Astronomy Recovery Mission, XARM, will carry its legacy forward.
arxiv