Observations of the soft X-ray transient Nova Vela 1993 are presented. These are the first observations, taken during quiescence in 1995 and 1996. An orbital...
An emerging hybrid technology toward ultra-light and self-correcting, "live" mirrors
The constantly increasing needs for astronomical imaging of ever fainter objects as well as for imaging the Earth from space require much higher angular...
An Emission-Line Star Conundrum Identified by SDSS-III/APOGEE
A small fraction of the telluric standards observed as part of the SDSS-III APOGEE survey have been discovered to be B-type emission line stars, many of which...
An empirical spectral library of chemically well characterized stars for stellar population modelling
With the goal of assembling a new generation of more realistic single stellar population (SSP) models, we have obtained magnesium abundances for nearly 80% of...
An Enigmatic High Excitation Nebula in IC 1613 Dwarf Galaxy
We report the serendipitous discovery of a high-excitation nebula in the Local Group dwarf galaxy IC 1613. The nebula shows spectral features typical of a...
An estimate of anthropogenic carbon into the north east Atlantic between Scotland and Iceland
The uptake of anthropogenic CO2 by the oceans since the industrial revolution is considered to have considerably buffered atmospheric CO2 increases and thereby...
An Explanation For Large-amplitude Longitudinal Oscillations In Prominences
Large amplitude longitudinal (LAL) oscillations, consisting of periodic motions of prominence material along a filament axis, are rare but quite dramatic. The...