Results 311 to 320 of about 191,283 (348)

Possible models for some transient X-ray sources

Nature, 1975
A TRANSIENT X-ray source flared up in Centaurus during December 1974 and was observed by the satellite Ariel V in the energy interval 3–30 keV (refs 1 and 2) Within a few days the source increased in intensity to a peak of 0.02 photons cm−2 s−1 keV−1. After reaching a maximum, the intensity decayed with an e-folding time of about 7 d.
FRANCO PACINI, STUART L. SHAPIRO
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The nature of transient X-ray sources

Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1976
A review of models for transient X-ray sources and the predictions they entail.
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BATSE observations of transient hard X-ray sources

AIP Conference Proceedings, 1994
Many transient sources have been detected and monitored by the Burst and Transient Source Experiment (BATSE) since launch using the Earth occultation technique. These include x‐ray novae, pulsars, and other galactic sources. We present preliminary results of the temporal and spectral characteristics for seven transients which are potentially black hole
B. A. Harmon, S. N. Zhang, C. A. Wilson, B. C. Rubin, G. J. Fishman, W. S. Paciesas   +5 more
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Solar cycle model for oscillating transient X-ray sources

Astrophysics and Space Science, 1976
The oscillations observed recently in the transient X-ray source A1118-61 are attributed to variations in the magnetic activity of a rotating white dwarf similar to the 11-year solar activity cycle. The transient nature, in analogy with the sun, is attributed to the variation in the strength of the cycle.
Krishna M. V. Apparao, S. M. Chitre
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Association of recurrent soft x-ray transients with x-ray burst sources

AIP Conference Proceedings, 1982
Hakucho observations have revealed that the soft transients, 2S1608‐522, 2S1715‐321, CenX‐4 and Aq1X‐1, all generate X‐ray burst. This result makes it convincing that these sources involve neutron stars. Furthermore, the optical counterpart of Aq1X‐1, when X‐ray quiescent, is identified to be a ∼KO dwarf, thus providing evidence that Aq1X‐1 is a binary
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Improved declination for transient X-ray source A0620–00

Nature, 1975
OBSERVATIONS with the Effelsberg 100-m telescope at a frequency of 4,600 MHz have resulted in an improved declination for the radio source believed to be associated with the transient X-ray source A0620–00 (ref. 1). The observations were made on August 24, 1975 with a cooled parametric amplifier of system temperature 65 K.
J. BIEGING, D. DOWNES
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Transient X-Ray Sources with Late-Type Companions

1989
In a few short-period (P≲1 day) X-ray binaries it is possible to observe the late-type secondary. Two examples are the X-ray novae Cen X-4 and A0620–00. Optical studies have shown that the degenerate star in the former has the mass expected for a neutron star, whereas the compact object in the latter is considerably more massive and is a likely black ...
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American Cancer Society nutrition and physical activity guideline for cancer survivors

Ca-A Cancer Journal for Clinicians, 2022
Cheryl L Rock, Cynthia A Thomson, Marian L Neuhouser   +2 more
exaly  

Racial and socioeconomic disparities in lung cancer screening in the United States: A systematic review

Ca-A Cancer Journal for Clinicians, 2021
Ernesto Sosa, Dan J Raz, Virginia Chih-Yi Sun   +2 more
exaly  

An overview of real‐world data sources for oncology and considerations for research

Ca-A Cancer Journal for Clinicians, 2022
Lynne Penberthy, Donna R Rivera, Jennifer L Lund, Msph   +2 more
exaly