Author: Steven David Bloomer
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The Search for Ultra High Energy Gamma Ray Emission from Cygnus X-3 and Hercules X-1
A Search for Very High Energy Gamma Ray Emission from Cygnus X-3
Author: Andrew Harold Szentgyorgyi
Publisher:
ISBN:
Category :
Languages : en
Pages : 456
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 456
Book Description
A Search for Very High Energy Gamma Rays from Cygnus X-3
Author: John R. Jennings
Publisher:
ISBN:
Category : Cygnus X-3
Languages : en
Pages : 508
Book Description
Publisher:
ISBN:
Category : Cygnus X-3
Languages : en
Pages : 508
Book Description
Search for Very High Energy Gamma Ray Emission from Hercules X-1
Author: Linda Ann Kelley
Publisher:
ISBN:
Category : Gamma ray astronomy
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category : Gamma ray astronomy
Languages : en
Pages : 0
Book Description
A SEARCH FOR ULTRA-HIGH ENERGY GAMMA RAYS FROM THE CRAB PULSAR, HERCULES X-1, AND CYGNUS X-3 (COSMIC RAYS).
Author: DAVID P. CIAMPA
Publisher:
ISBN:
Category :
Languages : en
Pages : 136
Book Description
time-varying signal; none is found.
Publisher:
ISBN:
Category :
Languages : en
Pages : 136
Book Description
time-varying signal; none is found.
Scientific and Technical Aerospace Reports
Search for Very High Energy Gamma Ray Emission from Hercules X-1
Literature 1989, Part 1
Author: Astronomisches Rechen-Institut
Publisher: Springer Science & Business Media
ISBN: 3662123703
Category : Science
Languages : en
Pages : 1433
Book Description
From the reviews: "Astronomy and Astrophysics Abstracts has appeared in semi-annual volumes since 1969 and it has already become one of the fundemental publications in the fields of astronomy, astrophysics and neighbouring sciences. It is the most important English-language abstracting journal in the mentioned branches. ...The abstracts are classified under more than a hundred subject categories, thus permitting a quick survey of the whole extended material. The AAA is a valuable and important publication for all students and scientists working in the fields of astronomy and related sciences. As such it represents a necessary ingredient of any astronomical library all over the world." Space Science Review# "Dividing the whole field plus related subjects into 108 categories, each work is numbered and most are accompanied by brief abstracts. Fairly comprehensive cross-referencing links relevant papers to more than one category, and exhaustive author and subject indices are to be found at the back, making the catalogues easy to use. The series appears to be so complete in its coverage and always less than a year out of date that I shall certainly have to make a little more space on those shelves for future volumes." The Observatory Magazine#
Publisher: Springer Science & Business Media
ISBN: 3662123703
Category : Science
Languages : en
Pages : 1433
Book Description
From the reviews: "Astronomy and Astrophysics Abstracts has appeared in semi-annual volumes since 1969 and it has already become one of the fundemental publications in the fields of astronomy, astrophysics and neighbouring sciences. It is the most important English-language abstracting journal in the mentioned branches. ...The abstracts are classified under more than a hundred subject categories, thus permitting a quick survey of the whole extended material. The AAA is a valuable and important publication for all students and scientists working in the fields of astronomy and related sciences. As such it represents a necessary ingredient of any astronomical library all over the world." Space Science Review# "Dividing the whole field plus related subjects into 108 categories, each work is numbered and most are accompanied by brief abstracts. Fairly comprehensive cross-referencing links relevant papers to more than one category, and exhaustive author and subject indices are to be found at the back, making the catalogues easy to use. The series appears to be so complete in its coverage and always less than a year out of date that I shall certainly have to make a little more space on those shelves for future volumes." The Observatory Magazine#
A Search for Very High Energy Gamma Rays from Hercules X-1
A Study of Ultra High Energy Radiation Associated with Hercules X-1
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 274
Book Description
Data from the CYGNUS experiment has been used to examine ultra high energy (UHE) radiation associated with the X-ray binary star system Hercules X-1. A search for both pulsed, and unpulsed emission over time scales ranging from minutes to years has failed to yield a result of comparable significance to that of the previously published observation of July 24, 1986. A reassessment of this result in light of the number of hypotheses that have been examined for Hercules X-1 yields a probability estimate of 0.44% that the data is consistent with background fluctuations. If the number of independent source hypotheses is also accounted for, an overall chance probability of 1.8% is assessed for the observations of the CYGNUS experiment. The extensive air showers corresponding to the episode of July 24, 1986 contain a substantial muon content, in contradiction with traditional predictions for primary gamma-rays. No satisfactory theory has yet been put forward to explain this phenomenon. A further analysis of shower characteristics for events associated with this episode indicates a steeper radial dependence of the showerfront timing width at a chance probability level of 0.16%. This property might be explained by a model that invokes a forward-peaked and/or a deeply interacting component of the hadronic interaction in the atmosphere. The potential importance of UHE observations of Hercules X-1 is great. however the evidence is not yet compelling. Further observations will be necessary, to confirm the potential properties of associated UHE radiation.
Publisher:
ISBN:
Category :
Languages : en
Pages : 274
Book Description
Data from the CYGNUS experiment has been used to examine ultra high energy (UHE) radiation associated with the X-ray binary star system Hercules X-1. A search for both pulsed, and unpulsed emission over time scales ranging from minutes to years has failed to yield a result of comparable significance to that of the previously published observation of July 24, 1986. A reassessment of this result in light of the number of hypotheses that have been examined for Hercules X-1 yields a probability estimate of 0.44% that the data is consistent with background fluctuations. If the number of independent source hypotheses is also accounted for, an overall chance probability of 1.8% is assessed for the observations of the CYGNUS experiment. The extensive air showers corresponding to the episode of July 24, 1986 contain a substantial muon content, in contradiction with traditional predictions for primary gamma-rays. No satisfactory theory has yet been put forward to explain this phenomenon. A further analysis of shower characteristics for events associated with this episode indicates a steeper radial dependence of the showerfront timing width at a chance probability level of 0.16%. This property might be explained by a model that invokes a forward-peaked and/or a deeply interacting component of the hadronic interaction in the atmosphere. The potential importance of UHE observations of Hercules X-1 is great. however the evidence is not yet compelling. Further observations will be necessary, to confirm the potential properties of associated UHE radiation.