The linear optical polarimetry was obtained during several observing runs at the CASLEO in San Juan, Argentina, during 2003-2007. The Torino five-channel...
Optical re-brightening of the black hole binary XTE J1859+226
Observations of the black hole binary XTE J1859+226 revealed an unexpected optical re-brightening. Images were taken with the Nordic Optical Telescope (NOT)...
Optical re-brightening of the black hole transient XTE J1752-223
We observed the black hole candidate XTE J1752-223 (ATel #2258) with the William Herschel Telescope (WHT) and the ACAM imager/spectrograph at the Observatorio...
Optical Spectra in the Non-Nuclear Regions of ULIRGs: Evidence of Ionization by Shocks
In this contribution we present the analysis of the ionization structure of a sample of six low-z Ultraluminous Infrared Galaxies using Integral Field...
Optical spectroscopy as a monitor of thin film growth in sputtering
Line intensity ratio has been used in astronomy to calculate plasma density and temperature. This procedure is applied to monitor thin film growth in plasma...
Optical Spectroscopy of Candidate X-ray Binaries in the Starburst IC 10
The dwarf irregular galaxy IC10 in Cassiopeia, is the youngest available starburst galaxy and home to many X-ray sources. Using the Gemini multi-object...
Optical Spectroscopy of Candidates in the LIGO/Virgo Binary Merger Error Boxes
We performed optical spectroscopy of the candidates inside the gravitational wave errorboxes (S190408an, S190425z, S190426c, S190510g, S190728q, S190814bv). The...
In response to the detection of the X-ray source Swift J0732.5-1331 (ATEL #697, #735, #757, #760), we observed its optical counterpart with the Mt. Hopkins 1.5m...