2024年11月5日 · A joint Hubble and James Webb Space Telescope (JWST) project to learn more about the dusty disk around the bright star Vega has found a surprising lack of planets, as evidenced by the disk...

2024年11月7日 · The team used NASA's Hubble Space Telescope and James Webb Space Telescope to get an unprecedented in-depth look at the nearly 100-billion-mile-diameter debris disk encircling Vega. Located in the summer constellation Lyra, Vega is one of the brightest stars in the northern sky.

2024年11月5日 · By combining data from Hubble, ALMA, and JWST, scientists can infer that the halo of dust grains in the Vega system that’s interior to the broad outer belt are of a small but not sub-micron...

2024年11月1日 · This is a James Webb Space Telescope view of a 100-billion-mile-wide disk of dust around the star Vega. The disk is remarkably smooth and there is no debatable evidence for planet formation taking place. Webb resolves the glow of …

With its remarkable capabilities and cutting-edge technology, JWST promises to unravel the secrets of this distant celestial neighbor like never before. In this article, we delve into the significance of this observation and what it could mean for our understanding of exoplanetary systems. Unveiling the Vega Exoplanet System:

2024年10月28日 · Astronomers used the James Webb Space Telescope to search for planets around Vega, a star known for its prominent debris disk. While they detected two distant objects, these were likely extragalactic sources, not planets. The study set strict limits on the possible sizes of any planets in Vega’s sys

2024年11月1日 · This is a James Webb Space Telescope view of a 100-billion-mile-wide disk of dust around the star Vega. The disk is remarkably smooth and there is no debatable evidence for planet formation taking place. Webb resolves the glow of …

2024年11月1日 · A Hubble Space Telescope false-color view of a 100-billion-mile-wide disk of dust around the summer star Vega. Hubble detects reflected light from dust that is the size of smoke particles largely in a halo on the periphery of the disk.

2024年10月21日 · Abstract: The most prominent of the IRAS debris disk systems, $\alpha$ Lyrae (Vega), at a distance of 7.7 pc, has been observed by both the NIRCam and MIRI instruments on the James Webb Space Telescope (JWST). This paper describes NIRCam coronagraphic observations which have achieved F444W contrast levels of 3$\times10^{-7}$ at 1\arcsec\ (7.7 ...

2024年12月3日 · By combining JWST and Hubble data, an unprecedented high-resolution photo of Vega shows an extremely smooth and rare disk. Remarkably smooth rings of dust surround the star Vega in this...