149 citations · 649 across the 16 of their papers we have counts for
8 papers · 1 filter
Embryos grown in the dead zone: Assembling the first protoplanetary cores in low mass self-gravitating circumstellar disks of gas and solids
W. Lyra, A. Johansen, H. Klahr +1
In the borders of the dead zones of protoplanetary disks, the inflow of gas produces a local density maximum that triggers the Rossby wave instability. The vortices that form are e…
Planets in the Galactic Bulge: Results from the SWEEPS Project
Kailash C. Sahu, Stefano Casertano, Jeff Valenti +13
The exoplanets discovered so far have been mostly around relatively nearby and bright stars. As a result, the host stars are mostly (i) in the Galactic disk, (ii) relatively massiv…
Transiting extrasolar planetary candidates in the Galactic bulge
Kailash C. Sahu, Stefano Casertano, Howard E. Bond +13
More than 200 extrasolar planets have been discovered around relatively nearby stars, primarily through the Doppler line shifts owing to the reflex motions of their host stars, and…
Inhomogeneous distribution of mercury on the surfaces of rapidly rotating HgMn stars
O. Kochukhov, N. Piskunov, M. Sachkov +1
Starspots are usually associated with the action of magnetic fields at the stellar surfaces. However, recently an inhomogeneous chemical distribution of mercury was found for the m…
No magnetic field variation with pulsation phase in the roAp star gamma Equulei
O. Kochukhov, T. Ryabchikova, N. Piskunov
We present an analysis of 210 high-resolution time-resolved spectropolarimetric observations of the roAp star gamma Equ obtained over three nights in August and September 2003. Rad…
Multi-element Doppler imaging of kappa Psc
N. Piskunov, H. C. Stempels, T. A. Ryabchikova +2
kappa Psc (HD 220825) is a typical Chromium Ap star that happens to have optimal parameters for Doppler imaging (DI). Its short rotational period of less then 2 days, rotational ve…