Results 271 to 280 of about 9,734,716 (302)

Mixing-Driven Defects and Composition Evolution in Multi-Material Metal Additive Manufacturing. [PDF]

open access: yesAdv Sci (Weinh)
Zhang Z   +5 more
europepmc   +1 more source

X-ray transient sources

Astrophysics and Space Science, 1979
The galactic distribution and physical nature of X-ray transient sources is investigated. Two types of transients are considered. The observational data on 41 X-ray transient sources are given, and the average parameters of hard and soft X-ray transients are estimated.
P R Amnuel, O H Guseinov
exaly   +2 more sources

X-ray variability in transient X-ray sources

Il Nuovo Cimento Della Società Italiana Di Fisica C, 1990
The X-ray variability of transient X-ray binaries is analyzed in terms of the orbital motion of the neutron star, centrifugal inhibition of accretion and of the variable moss loss rate due to activity of the optical counterpart. The systems A0535+26 and V0332+53 are studied in this respect.
Domitilla de Martino
exaly   +2 more sources

The periodic transient X-ray sources

Nature, 1975
THE transient X-ray sources Ariel 1118–61 and Ariel 0535 + 26 have periods of 405 s (ref. 1) and 114 s (ref. 2) respectively. Rappaport and McClintock3 reported the discovery of a 283-s period in the X-ray binary 3U0900–40 (a ‘continuous’ source) which is known to have an orbital period Porb = 8.95 d.
D T Wickramasinghe
exaly   +2 more sources

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   +5 more
exaly   +2 more sources

Transient X-ray sources

Nature, 1975
IN the eccentric-orbit binary model1,2, a compact object is in an eccentric orbit around a more massive, slightly evolved star. If the compact object accretes mass from the stellar wind of the normal star, the accretion rate is time dependent, so that the resulting X-ray emission would show a maximum at periastron (in the absence of absorption ...
D. H. CLARK, J. H. PARKINSON
openaire   +1 more source

Transient soft X-ray sources

Astrophysics and Space Science, 1976
A rocket observation of cosmic soft X-rays suggests the existence of transient, recurrent soft X-ray sources which are found variable during the flight time of the rocket. Some of the soft X-ray sources thus far reported are considered to be of this time. These sources are listed in Table I, and their positions are shown in Figure 2.
S. Hayakawa   +3 more
openaire   +1 more source

Transient X-ray sources

Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1976
Abstract One of the most striking results of Ariel 5 has been the large number of transient sources which has been observed, including what is probably a new type which is relatively short-lived and one near the Galactic Centre which is also probably distinct from the others since it was also observed as a radio source.
openaire   +1 more source

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