Observations

May 26, 2018

Linear spectropolarimetry across H_alpha and H_beta lines of Herbig Ae/Be stars

2018-1-SCI-027

SALT Spectroscopic Survey of IR 12MGS Seyfert Galaxies

2018-1-SCI-029

Our program aims to study the optical properties of dust-obscured galaxies in the local Universe. These intriguing objects are the local analogs of the more distant sources responsible for the bulk of star formation in our Universe, but yet most of the physical processes driving them remain poorly explained. Our proposed SALT observations will help in shedding the light on such physical mechanisms and therefore contribute to the study of galaxy formation and evolution in our Universe.

Surface Chemistry of Peculiar Hot Subdwarfs

2018-1-SCI-038

Stars approaching the end of their lives expand and, in many cases, exchange material with close companions. This has a radical effect on their evolution and surface composition, producing a zoo of rare but highly exotic stars. By exploring the propertiesof thes pathological cases, we are endeavouring to understand the ways in which stars exhange matter and evolve towardstheir final fate as white dwarfs or supernovae. The stars in this programme are perfect examples — many of them have completelylost their surface hydrogen, for reasons still to be explained. These observations will tell us about the abundances of otherelements — previously we have discovered huge overabundances of exotic species such as lead and zirconium, and will explore how some of these stars may vary over time.

Systematic radial velocity monitoring of likely intermediate period post-AGB binaries

2017-1-MLT-010

We are searching for binary stars in some of the most beautiful stellar remnants in the Galaxy.

Asymmetry is Destiny: Wolf-Rayet Binary Stars as GRB Progenitors

2018-1-SCI-008

This program aims to use the recently-commissioned high-precision spectropolarimetry mode of RSS to probe the prodigious mass-loss from certain massive evolved stars known as Wolf-Rayet stars which are in binary systems. These objects are possible progenitors of Gamma-Ray Bursts, which are the most energetic explosions yet known, and can be seen across the entire known universe.

Mass measurement of exoplanet candidates from TESS and KELT-South

2018-1-MLT-010

Confirmation of exoplanet candidates

Observing the Transient Universe

2016-2-LSP-001

This large SALT program is aimed at studying “things that go bang in the night”, namely transient objects in the Universe which either are newly discovered objects, or known objects who suddenly change their appeatance. Such things include binary stars with accreting compact companions, many of them X-ray or gamma ray sources, eruptive stars which suddenly brighten, black holes systems, including active galaxies powered by them, and all manner of explosions including the most energetic of all, gamma ray bursts.

May 23, 2018

Characterising the host star and protoplanetary disk environment in nearby young star systems

2018-1-SCI-015

The young star β Pictoris is seen orbited by a warped edge-on debris disc of gas and dust, as well as a massive planet. In order to gain insights into the mechanisms of planetary system formation, it is useful to study the properties, behaviour and interaction of exocomets within this and other similar young planetary system.

SALT Spectroscopic Survey of IR 12MGS Seyfert Galaxies

2018-1-SCI-029

Our program aims to study the optical properties of dust-obscured galaxies in the local Universe. These intriguing objects are the local analogs of the more distant sources responsible for the bulk of star formation in our Universe, but yet most of the physical processes driving them remain poorly explained. Our proposed SALT observations will help in shedding the light on such physical mechanisms and therefore contribute to the study of galaxy formation and evolution in our Universe.

Probing the origin of emerging broad absorption line QSOs

2018-1-SCI-009

We are searching for long term variability of broad absorption lines