This dwarf star was selected from SDSS/BOSS as a metal-poor candidate and follow-up spectroscopic observations at medium-resolution were obtained with ISIS at
William Herschel Telescope and OSIRIS at Gran Telescopio de Canarias," the researchers wrote in the paper.
The X-ray emission, representing the accretion disc 'feeding' the jet at its base, was captured from Earth orbit by NASA's NuSTAR telescope, while the moment the jet became visible as optical light was caught by the ULTRACAM high-speed camera, mounted on the
William Herschel Telescope on La Palma, in the Canary Islands.
With the VLT spectrum in hand, as well as a run of high-speed photometry from the
William Herschel Telescope, the ball started rolling.
As the Earth turns on its axis and the sun rises on Hawaii, the webcast moves around the world, visiting the Anglo-Australian Telescope at 1pm BST, Jodrell Bank Observatory near Manchester at 6pm BST, the
William Herschel Telescope in the Canary Islands at 12.10am BST (Saturday morning), finishing up at the Palomar Observatory in California at 09.40am BST, along with dozens of other observatories in between.
Andrews in Scotland and his colleagues used the
William Herschel Telescope in the Canary Islands.
The first MOAO-enabled image was obtained in 2010 on the 4.2-meter
William Herschel Telescope in the Canary Islands.
The observation was made by UK astronomers, using the Science and Technology Facilities Council's (STFC)
William Herschel Telescope on La Palma.
Armed with these images, as well a smaller set his team took with the
William Herschel Telescope in the Canary Islands, Spain, and the United Kingdom Infrared Telescope atop Hawaii's Mauna Kea, Shanks' team found that the number of galaxies increases sharply as their brightness decreases.
Using spectroscopy from the
William Herschel Telescope in the Canary Islands, Campbell and her colleagues found that Gaia14aae contains large amounts of helium, but no hydrogen, which is highly unusual as hydrogen is the most common element in the Universe.