Search Publications
10 Years of the optical & UV monitor (OM) on-board XMM-Newton
Talavera, Antonio; OMCal Team
The XMM-Newton X-ray observatory was launched at the end of 1999 and it is still successfully operated. In addition to the X-ray instruments, the payload carries a small telescope, the Optical Monitor, which provides simultaneous imaging and spectroscopic observations in the optical and UV ranges. In this report we review the status of the OM and …
Gravitationally lensed QSOs in the ISSIS/WSO-UV era
Gil-Merino, R.; Goicoechea, L. J.; Shalyapin, V. N.
Gravitationally lensed QSOs (GLQs) at 1≤z≤2 play a key role in understanding the cosmic evolution of the innermost parts of active galaxies (black holes, accretion disks, coronas and internal jets), as well as the structure of galaxies at intermediate redshifts. With respect to studies of normal QSOs, GLQ programmes have several advantages. For ex…
UV spectroscopy of the hot bare stellar core H1504+65 with the HST Cosmic Origins Spectrograph
Rauch, T.; Werner, K.
We present new ultraviolet spectra of the hottest known, peculiar white dwarf H1504+65, obtained with the Cosmic Origins Spectrograph on the Hubble Space Telescope. H1504+65 is the hottest known white dwarf (Teff=200 000 K) and has an atmosphere mainly composed by carbon and oxygen, augmented with high amounts of neon and magnesium. Thi…