... sky; Optical, which models the optical counterpart; Brightness, which describes the ... 5.2 Optical The optical counterpart of the X-ray source can be speci ed. At present ... For no optical counterpart, the `none' option should be selected. ...

... that astronomers might not want to look in the nearest galaxies for these "optical counterparts" of gravitational waves ... Detecting the optical counterparts of gravitational-wave detections will be a lot easier if they are not within galaxies ...

... the example of Cyg X­ 1 = HDE 226868 (the optical counterpart is an O9.7 supergiant ... the spectropolarimetric observations of the optical counterpart of the X­ray binary ...

... Another early finding by Yu.N.Efremov was the discovery of the light variability of the optical counterpart of the quasar 3C 273 (simultaneously with H.Smith, 1963) and the first identification of HZ Her as the optical counterpart to the X-rays source Her ...

... for the gamma­ray bursts, the fast identification of the optical counterpart is a crucial item to unveil the physical nature of ...

... V=16 may get worse due to stray light, especially for fainter objects Figure credit: http://www.esa.int/esaSC/120377_index_1_m.html#subhead7 XKa: ~175 optically bright counterparts: V< 18 mag (optical V magnitudes: Veron-Cetty & Veron, 2010) 18 Optical vs ...

... 04198 - A Dark Energy Camera Search for an Optical Counterpart to the First Advanced LIGO Gravitational Wave Event GW150914 ...

... The basic models of synthetic spectra for z and redshift calculation are applied to elliptical galaxies being very often optical counterparts for the radio galaxies. ...