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“#First measurement of spin-orbit alignment on planet Beta Pictoris b” The new observations show that the stellar equator (right) is aligned with the orbital plane of the planet Beta Pictoris b (middle) and the plane of the extended disc of debris material that surrounds the system (left). Credit: ESO/A.M. Lagrange; ESO/A.M. Lagrange/SPHERE consortium Credit: Stefan…
“#Inferring the temperature structure of circumstellar disks from polarized emission” An ALMA submiilimeter image of the dusty circumstellar disc around a young star. Astronomers are using ALMA polarization maps of the radiation from discs simialr to this one to infer the presence of a temperature gradient, and infer possible accretion onto the disc. (The asterisk…
“#Motions in the sun reveal inner workings of sunspot cycle” Helioseismology was used to measure the Sun’s meridional flow (in miles per hour). This flow controls the evolution of the global magnetic field and the number of sunspots. Credit: MPS (Z.-C. Liang). The sun’s magnetic activity follows an 11-year cycle. Over the course of a…
“#Astronomers discover ‘monster’ quasar from early universe” An artist’s impression of the quasar Pōniuāʻena, the first quasar to receive an Indigenous Hawaiian name. Credit: International Gemini Observatory/NOIRLab/NSF/AURA/P. Marenfeld Astronomers have discovered the most massive quasar known in the early universe, containing a monster black hole with a mass equivalent to 1.5 billion suns. Formally designated…
“#Drones help calibrate radio telescope at Brookhaven Lab” To calibrate the BMX radio telescope, researchers mounted a small radio source to a quadcopter drone and then flew it over the telescope, making a zig-zag pattern over the telescope’s entire field of view. By comparing the drone’s known flight path from GPS signals to the radio…
“#Hubble sees a cosmic flapping ‘Bat Shadow’” Astronomers using Hubble previously captured a remarkable image of a young star’s unseen, planet-forming disk casting a huge shadow across a more distant cloud in a star-forming region. The star is called HBC 672, and the shadow feature was nicknamed the “Bat Shadow” because it resembles a pair…
“#First detector array ready for GUSTO mission” The first 4.7 THz detector array for the GUSTO mission. Each sphere in the center is one pixel, creating an 8-pixel-array. Credit: SRON Netherlands Institute for Space Research The first detector array for NASA’s GUSTO mission has passed its pre-shipment review and is now shipping to the University…
“#Beneath the surface of our galaxy’s water worlds” This artist’s concept shows a hypothetical planet covered in water around the binary star system of Kepler-35A and B. The composition of such water worlds has fascinated astronomers and astrophysicists for years. Credit: NASA/JPL-Caltech Out beyond our solar system, visible only as the smallest dot in space…
“#Rogue’s gallery of dusty star systems reveals exoplanet nurseries” This figure shows the dust rings around young stars captured by the Gemini Planet Imager Exoplanet Survey, or GPIES. The rings show a diversity of shapes and sizes, made more extreme by the different projections of the rings on the sky. Credit: UC Berkeley image by…
“#Neptune-sized planet discovered orbiting young, nearby star” Illustration of AU Mic b orbiting its parent star, AU Mic. Credit: NASA’s Goddard Space Flight Center/Chris Smith (USRA) New research published today in Nature reports the discovery of a planet about the size of Neptune orbiting an especially young, nearby star. The planet, named AU Mic b,…