35 citations · 58 across the 6 of their papers we have counts for
6 papers
The SALT survey of helium-rich hot subdwarfs: final sample and classification
C. Simon Jeffery, Matti Dorsch, Asish Philip Monai +3
A medium-resolution spectroscopic survey of helium-rich hot subdwarfs has been carried out using the Southern African Large Telescope (SALT). Objectives include the discovery of ex…
A search for close binary systems in the SALT survey of hydrogen-deficient stars using {\it TESS}
E. J. Snowdon, C. S. Jeffery, S. Schlagenhauf +1
The {\it TESS} periodograms of the SALT survey catalogue of hydrogen-deficient stars were searched for evidence of short-period variability. Periodic light curve variations were id…
Discovery of three magnetic helium-rich hot subdwarfs with SALT
M. Dorsch, C. S. Jeffery, A. Philip Monai +6
Magnetic fields with strengths ranging from 300 to 500 kG have recently been discovered in a group of four extremely similar helium-enriched hot subdwarf (He-sdO) stars. Besides th…
Hot white dwarfs and pre-white dwarfs discovered with SALT
C. S. Jeffery, K. Werner, D. Kilkenny +3
The Southern African Large Telescope (SALT) survey of helium-rich hot subdwarfs aims to explore evolutionary pathways amongst groups of highly-evolved stars. The selection criteria…
Spectroscopic analysis of BPS CS 22940-0009: connecting evolved helium stars
E. J. Snowdon, L. J. A. Scott, C. S. Jeffery +1
BPS CS 22940-0009 is a helium-rich B-star that shares characteristics with both helium-rich B subdwarfs and extreme helium stars. The optical spectrum of BPS CS 22940-0009 has been…
The SALT survey of helium-rich hot subdwarfs: methods, classification, and coarse analysis
Simon Jeffery, Brent Miszalski, Edward Snowdon
A medium- and high-resolution spectroscopic survey of helium-rich hot subdwarfs is being carried out using the Southern African Large Telescope (SALT). Objectives include the disco…