Optical Study of the X-ray Transient XTE J2123-058
We present the results of optical photometry of the X-ray transient XTE J2123-058. CCD R-band images, have been obtained since 2 Jul until 29 Sep 1998...
Over the past 12 years we have been conducting a survey of IRAS (PSC) sources with dust temperatures between 100 and 250 K, which is the temperature of AGB...
Optical Tomography of a Sunspot: Preliminary Results
Preliminary results of the inversion of spectropolarimetric maps of a sunspot observed with the Advanced Stokes Polarimeter (ASP) are presented. The method used...
Optical Transients Detected by MASTER during LIGO/VIRGO O2 Set Event
We present MASTER observations from inspecting the large error-box associated with LIGO/Virgo G270590, and our observational strategy. MASTER observed 6292...
Optical Transients Found by MASTER during the Observation of LIGO/VIRGO S200219ac Gravitational-wave Event
We present the results of MASTER Global Robotic Net optical observations of the region within the LIGO/Virgo S200219ac error-box, triggered during the O3 run...
An international collaboration of fourty scientists have been involved in multifrequency observations of the blazar OJ 287, as well as of a few other...
Optical variability of the ultraluminous X-ray source NGC 1313 X-2
We analyzed the longest phase-connected photometric dataset available for NGC 1313 X-2, looking for the ˜6 day modulation reported by Liu et al. (2009). The...