02 August 2016
Astronomers detect large void in the centre of our Galaxy
... be revealed, Matsunaga and team conclude ‘that detailed observations of these objects, such as high-resolution spectroscopy for radial velocities and metallicities, would provide a new path to a global picture of Galactic structure and evolution.’
14 September 2016
Gaia's first map hints at big things to come
... – just one per cent of the stars in the Galaxy – up to seventy times and use the positional and radial velocity measurements to answer questions about the origin and evolution of the Milky Way. Launched 1000 days ago...
23 June 2017
Will our next nearest exoplanet be found soon?
... respectively. Photometric observations of the stars have already begun by the scientific team using ESO’s High Accuracy Radial velocity Planet Searcher (HARPS) and other instruments across the globe and spectrographic observations started two days...
17 June 2019
Filling in the gaps of Jupiter-like planet formation
... unobserved in past searches, such as those conducted by the Kepler Space Telescope transit survey and other past radial velocity observations – which looks for telltale wobbles in a star’s motion to help locate an exoplanet – as they look at planets...
16 December 2019
Cheops, ESA's exoplanet watching telescope launches tomorrow
... rocky worlds or perhaps harbouring an ocean for example. “By measuring the radius and by knowing the mass through radial velocity, we can place these different planets and try to figure out what they’re made of,” said Willy Benz...
17 April 2020
A six-planet system is discovered and more could be hiding say astronomers
...due in part to the difficulty of finding systems such as these. To discover the planets of HD 158259, astronomers took 209 radial velocity measurements using SOPHIE – a method which measures the change in light that occurs when the gravitational pull...
