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We report on more than 7 yr of monitoring of PSR J0537-6910, the 16 ms pulsar in the LMC, using data acquired with RXTE. During this campaign the pulsar experienced 23 sudden increases in frequency ("...
Predicting the Merger Fraction of Lyman alpha Emitters from Redshift z~3 to z~7
accretion – infrared: galaxies.halo:galaxies
2011/10/9
Rapid mass assembly, likely from mergers or smooth accretion, has been predicted to play a vital role in star-formation in high-redshift Lyman alpha (Lya) emitters. Here we predict the major merger, m...
The Challenge of Predicting the Occurrence of Intense Storms
Sun coronal mass ejection geomagnetic storms space weather
2010/9/16
Geomagnetic super-storms of October and November 2003 are compared in order to identify solar and interplanetary variables that influence the magnitude of geomagnetic storms. Although these superstorm...
Although we have reliable data of solar polar fields only from the mid-1970s, it seems that the polar field at a minimum is well correlated with the next cycle, but the strength of the cycle is not co...
Predicting the future from observable sequences of events in astrophysics I. Maximum Likelihood Estimation for a fixed number of parameters
astrophysics Maximum Likelihood
2009/5/27
Using analytical and numerical methods, estimates are given of future predictions in astrophysics that can be gathered from a sequence of observed events, for example for γ-ray bursts. Some general pr...
The Challenge of Predicting the Occurrence of Intense Storms
Sun:coronal mass ejection geomagnetic storms space weather
2009/5/7
Geomagnetic super-storms of October and November 2003 are compared in order to identify solar and interplanetary variables that influence the magnitude of geomagnetic storms. Although these superst...
Although we have reliable data of solar polar fields only
from the mid-1970s, it seems that the polar field at a minimum is well
correlated with the next cycle, but the strength of the cycle is not ...
Predicting Maximum Sunspot Number in Solar Cycle 24
Sunspot number precursor prediction technique geomagnetic activity index aa
2010/9/15
A few prediction methods have been developed based on the precursor technique which is found to be successful for forecasting the solar activity. Considering the geomagnetic activity aa indices during...