In this White Paper we present the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies related to Observatory Science targets...
Observed and computed UV spectral distribution of A and F stars
An automatic and fast procedure was implemented to determine Te and log g from the comparison of the UV S 2/68 spectra with the Kurucz models. The method has...
Observed differences between large and small sunspots
We confirm recent results about the differences in temperature and magnetic field strength between the umbra of large and small sunspots. Five Stokes I- and V...
Observed versus simulated halo c-M<SUB>vir</SUB> relations
The concentration - virial mass relation is a well-defined trend that reflects the formation of structure in an expanding universe. Numerical simulations reveal...
Observed versus simulated halo c-M<SUB>vir</SUB> relations
The concentration - virial mass relation is a well-defined trend that reflects the formation of structure in an expanding universe. Numerical simulations reveal...
Observing and Reducing IFUs: INTEGRAL and PMAS—Properties of the Ionized Gas in HH 202
The reduction of integral field spectroscopy (IFS) data requires several stages and many repetitive operations to convert raw data into, typically, a large...
Observing Near Earth Asteroids with a Small Telescope. I. Planning the Observations
Even from a light-polluted city it is possible to observe Near Earth Asteroids (NEAs) at opposition using a small telescope equipped with a CCD camera. In this...
Observing the changing surface structures of the active K giant σ Geminorum with SONG
Aims: We aim to study the spot evolution and differential rotation in the magnetically active cool K-type giant star σ Gem from broadband photometry and...
Observing the Dark Matter Density Profile of Isolated Galaxies
Using the Sloan Digital Sky Survey (SDSS), we probe the halo mass distribution by studying the velocities of satellites orbiting isolated galaxies. In a...