43 citations · 93 across the 7 of their papers we have counts for
4 papers · 1 filter
Periodic variability of the z=2.0 quasar QSO B1312+7837
M. Minev, V. D. Ivanov, T. Trifonov +6
We report here the first results from a 15-yr long variability monitoring of the z=2.0 quasar QSO B1312+7837. It shows luminosity changes with a period P~6.13 yr (P~2.04 yr at rest…
Near-infrared spectroscopic indices for unresolved stellar populations. II. Index measurements
D. Gasparri, L. Morelli, V. D. Ivanov +7
We measured the equivalent width of a large set of near-infrared (NIR, 0.8--2.4m) line-strength indices in the XShooter medium-resolution spectra of the central regions of 14…
High contrast imaging at 10 microns, a search for exoplanets around: Eps Indi A, Eps Eri, Tau Ceti, Sirius A and Sirius B
P. Pathak, D. J. M. Petit dit de la Roche, M. Kasper +15
The direct imaging of rocky exoplanets is one of the major science goals for upcoming large telescopes. The contrast requirement for imaging such planets is challenging. However, t…
New Mid-Infrared Imaging Constraints on Companions and Protoplanetary Disks around six Young Stars
D. J. M. Petit dit de la Roche, N. Oberg, M. E. van den Ancker +13
Mid-infrared imaging traces the sub-micron and micron sized dust grains in protoplanetary disks and it offers constraints on the geometrical properties of the disks and potential c…