... pro phd_ana, name,ll_fit,ul_fit,i_thresh,PHDFRAC ; INPUT: ; name string name of datafile ; ll_fit integer lower limit of fit ; ul_fit integer upper limit of fit ; i_thresh integer event detection threshold ; OUTPUT: ; PHDFRAC real fraction of detected events ; read data rdtable,name,x,y ; gaussian fit yfit=gaussfit(x(ll_fit:ul_fit),y(ll_fit:ul_fit),a1,nterm=3) ; calculate fraction of detected events PHDFRAC= 1.-gauss_pdf((i_thresh-a1(1))/a1(2)) return end . ...

... More than 200 microlensing events have been detected during the last ~4 years, most of them towards the galactic bulge. Since the line of sight towards the bulge passes through the disk and the bulge itself, the known stars towards the bulge play a dominant role as gravitational lenses. If these stars have planets around them, then the signature of the planets can be seen as sharp, extra peaks on the microlensing light curves. ... Status of some other similar efforts will be briefly discussed. ...

... During the analysis of the surveys carried out on RATAN-600, it was found that almost one fifth of the detected sources shows significant radio flux variations. ... We used the data from "Cold" radio surveys carried out with RATAN-600 in 1980-1994 to search for radio sources with significant flux variability. ... On possibility of detection of variable sources using the data of Cold surveys carried out on RATAN-600. ... Detection of Variable Sources Using the Data of "Cold" Surveys. ...

... The measured gravitational waves match those expected from two large black holes merging after a death spiral in a distant galaxy, with the resulting new black hole momentarily vibrating in a rapid ringdown . ... The featured illustration depicts the two merging black holes with the signal strength of the two detectors over 0.3 seconds superimposed across the bottom. ... Two Black Holes Merge . Advanced LIGO: Gravitational Wave Detectors Upgraded . ... A Step Toward Gravitational Wave Detection ...

... 2016 February 11 . LIGO Detects Gravitational Waves from Merging Black Holes . ... The first-ever detection was made by both facilities of the Laser Interferometer Gravitational-Wave Observatory (LIGO) in Washington and Louisiana simultaneously last September. ... The measured gravitational waves match those expected from two large black holes merging after a death spiral in a distant galaxy, with the resulting new black hole momentarily vibrating in a rapid ringdown . ... About APOD | ...

This source is hiding behind our Galaxy at a distance of ~18 Mpc, located at a galactic latitide of 0 degrees. ... As we look towards longer wavelengths, 60 micron, to try and penetrate the