scholarly journals SAX J1808.4−3658, an accreting millisecond pulsar shining in gamma rays?

2015 ◽  
Vol 456 (3) ◽  
pp. 2647-2653 ◽  
Author(s):  
E. de Oña Wilhelmi ◽  
A. Papitto ◽  
J. Li ◽  
N. Rea ◽  
D. F. Torres ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Millisecond Pulsar

scholarly journals The transitional millisecond pulsar IGR J18245-2452 during its 2013 outburst at X-rays and soft gamma-rays

2017 ◽  
Vol 603 ◽  
pp. A16 ◽  
Author(s):  
V. De Falco ◽  
L. Kuiper ◽  
E. Bozzo ◽  
C. Ferrigno ◽  
J. Poutanen ◽  
...  
Keyword(s):  
Gamma Rays ◽  
X Rays ◽  
Millisecond Pulsar

scholarly journals PULSED GAMMA RAYS FROM THE MILLISECOND PULSAR J0030+0451 WITH THEFERMILARGE AREA TELESCOPE

2009 ◽  
Vol 699 (2) ◽  
pp. 1171-1177 ◽  
Author(s):  
A. A. Abdo ◽  
M. Ackermann ◽  
W. B. Atwood ◽  
M. Axelsson ◽  
L. Baldini ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Millisecond Pulsar

scholarly journals The first radio-quiet millisecond pulsar?

2012 ◽  
Vol 8 (S291) ◽  
pp. 116-116
Author(s):  
Andrea Belfiore
Keyword(s):  
Gamma Rays ◽  
Millisecond Pulsar ◽  
Black Widow ◽  
X Ray ◽  
The Future

AbstractThe Fermi-LAT source 2FGL J2339.6-0532 is likely to host a millisecond pulsar in a ‘black-widow’ system. Strong indications of its nature come from gamma rays and particularly from optical and X-ray observations. However, no pulsations have been found so far neither in radio nor in gamma rays, despite deep searches. I will present here our efforts to find pulsations in Fermi-LAT data. I will describe the uncertainties in the orbital and spin parameters of the source, broadly covered in our search. I will prove the robustness of our technique on other similar systems, and through simulations. I will present the results of our search: the most likely candidates and the further constraints on the parameters of the putative pulsar. Finally, I will discuss the implications of our results and the prospects to find pulsations in this and other similar systems in the future.

On the possible gamma-ray source in Cygnus

1967 ◽  
Vol 31 ◽  
pp. 469-471
Author(s):  
J. G. Duthie ◽  
M. P. Savedoff ◽  
R. Cobb
Keyword(s):  
Gamma Rays ◽  
Gamma Ray ◽  
Right Ascension

A source of gamma rays has been found at right ascension 20h15m, declination +35°, with an uncertainty of 6° in each coordinate. Its flux is (1·5 ± 0·8) x 10-4photons cm-2sec-1at 100 MeV. Possible identifications are reviewed, but no conclusion is reached. The mechanism producing the radiation is also uncertain.

Solar Flare Energetic Neutral Emission Measurements in the Project Coronas-I

1994 ◽  
Vol 144 ◽  
pp. 635-639
Author(s):  
J. Baláž ◽  
A. V. Dmitriev ◽  
M. A. Kovalevskaya ◽  
K. Kudela ◽  
S. N. Kuznetsov ◽  
...  
Keyword(s):  
Solar Flare ◽  
Energy Range ◽  
Gamma Rays ◽  
Pulse Shape ◽  
Gamma Ray ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Solar Neutron ◽  
Low Altitude

AbstractThe experiment SONG (SOlar Neutron and Gamma rays) for the low altitude satellite CORONAS-I is described. The instrument is capable to provide gamma-ray line and continuum detection in the energy range 0.1 – 100 MeV as well as detection of neutrons with energies above 30 MeV. As a by-product, the electrons in the range 11 – 108 MeV will be measured too. The pulse shape discrimination technique (PSD) is used.

Sign in / Sign up

Export Citation Format

Share Document