The SN Ia runaway LP 398-9: detection of circumstellar material and surface rotation
A promising progenitor scenario for Type Ia supernovae (SNeIa) is the thermonuclear detonation of a white dwarf in a close binary system with another white...
The Soft X-ray and Narrow-line Emission of Mrk 573 on Kiloparsec Scales
We present a study of the circumnuclear region of the nearby Seyfert galaxy Mrk 573 using Chandra, XMM-Newton, and Hubble Space Telescope (HST) data. We have...
The soft X-ray transient GS2000 + 25. I - an 8.3-hr modulation during outburst
Optical spectroscopy of the X-ray transient, GS2000 + 25 during its 1988 outburst shows that this system is similar to A0620 - 00 but at a greater distance...
The Solar Activity Magnetic Monitor (SAMM) Network (SAMNet) is a future UK-led international network of ground-based solar telescope stations. SAMNet, at its...
The solar Ba{II} 4554 Å line as a Doppler diagnostic: NLTE analysis in 3D hydrodynamical model
Aims: The aim of this paper is to analyse the validity of the Dopplergram and λ-meter techniques for the Doppler diagnostics of solar photospheric velocities...
The solar chromosphere at millimetre and ultraviolet wavelengths. I. Radiation temperatures and a detailed comparison
Solar observations with the Atacama Large Millimeter/submillimeter Array (ALMA) provide us with direct measurements of the brightness temperature in the solar...
The solar gravitational redshift from HARPS-LFC Moon spectra⋆. A test of the general theory of relativity
Context. The general theory of relativity predicts the redshift of spectral lines in the solar photosphere as a consequence of the gravitational potential of...
The Solar Internetwork. I. Contribution to the Network Magnetic Flux
The magnetic network (NE) observed on the solar surface harbors a sizable fraction of the total quiet Sun flux. However, its origin and maintenance are not well...