scholarly journals Observations of the latitude dependence of the location of the martian magnetic pileup boundary

2002 ◽  
Vol 29 (8) ◽  
pp. 11-1-11-4 ◽  
Author(s):  
Dana H. Crider ◽  
Mario H. Acuña ◽  
John E. P. Connerney ◽  
Didier Vignes ◽  
Norman F. Ness ◽  
...  
2021 ◽  
Vol 923 (1) ◽  
pp. 2 ◽  
Author(s):  
A. Josephy ◽  
P. Chawla ◽  
A. P. Curtin ◽  
V. M. Kaspi ◽  
M. Bhardwaj ◽  
...  

Abstract We investigate whether the sky rate of fast radio bursts (FRBs) depends on Galactic latitude using the first catalog of FRBs detected by the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) Project. We first select CHIME/FRB events above a specified sensitivity threshold in consideration of the radiometer equation, and then we compare these detections with the expected cumulative time-weighted exposure using Anderson–Darling and Kolmogorov–Smirnov tests. These tests are consistent with the null hypothesis that FRBs are distributed without Galactic latitude dependence (p-values distributed from 0.05 to 0.99, depending on completeness threshold). Additionally, we compare rates in intermediate latitudes (∣b∣ < 15°) with high latitudes using a Bayesian framework, treating the question as a biased coin-flipping experiment–again for a range of completeness thresholds. In these tests the isotropic model is significantly favored (Bayes factors ranging from 3.3 to 14.2). Our results are consistent with FRBs originating from an isotropic population of extragalactic sources.


2020 ◽  
Vol 889 (1) ◽  
pp. 56 ◽  
Author(s):  
María Gabriela Navarro ◽  
Dante Minniti ◽  
Joyce Pullen ◽  
Rodrigo Contreras Ramos

1977 ◽  
Vol 212 ◽  
pp. 707 ◽  
Author(s):  
R. C. Henry ◽  
J. R. Swandic ◽  
S. D. Shulman ◽  
G. Fritz

1979 ◽  
Vol 84 ◽  
pp. 125-130
Author(s):  
J. A. Paul

Within the last few years, γ-ray astronomy has shifted from the discovery phase to the exploratory phase, thanks to the SAS-2 and COS-B satellites. The strongest feature of the γ-ray sky is the overwhelming emission of the galactic disc; even the radiation observed away from the galactic plane appears to be predominantly galactic, on the basis of its latitude dependence (Fichtel et al., 1978). Nevertheless, extragalactic γ-ray astronomy is not hopeless: the γ-radiation of the nearby quasar 3C273 has been very recently detected (Swanenburg et al., 1978). A brief summary of the present status of the galactic γ-ray astronomy follows.


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