The new generation of ground-based, large-aperture solar telescopes promises to significantly increase our capabilities to understand the many basic phenomena...
Low degree l=0-2 solar p-modes were detected with the SLOT instruments at Izana and Baja California. The main source of noise for these ground based...
Solar Site Survey for the Advanced Technology Solar Telescope. I. Analysis of the Seeing Data
The site survey for the Advanced Technology Solar Telescope concluded recently after more than 2 years of data gathering and analysis. Six locations, including...
The prototype SONG node, SONG-OT, is currently being installed and tested at Observatory del Teide on Tenerife. SONG will be a global network of 1-m robotic...
Spatial and luminosity distributions of the ionized hydrogen in NGC 3992
From H-alpha CCD observations taken with the 4.2 m William Herschel Telescope a catalog of 394 HII regions of the spiral NGC 3992 has been compiled. The...
Spectro-polarimetry in the era of large solar telescopes
This paper discusses some of the challenges of spectro-polarimetric observations with a large aperture solar telescope such as the ATST or the EST. The observer...
Spectroscopy of ring nebulae around Wolf-Rayet stars in M33
We present high and low resolution spectroscopic observations for a sample of seven ring nebulae around Wolf-Rayet (WR) stars in M33: MC 27, MC 44, MC 46, MC 51...
SPECULOOS Northern Observatory: Searching for Red Worlds in the Northern Skies
SPECULOOS is a ground-based transit survey consisting of six identical 1 m robotic telescopes. The immediate goal of the project is to detect temperate...
Star tracking for pointing determination of Imaging Atmospheric Cherenkov Telescopes. Application to the Large-Sized Telescope of the Cherenkov Telescope Array
We present a novel approach to the determination of the pointing of Imaging Atmospheric Cherenkov Telescopes (IACTs) using the trajectories of the stars in...