Category Astronomy/Space

Runaway Stars leave Infrared Waves

In the last year, astronomers from Wyoming Uni have discovered 100 of the fastest-moving stars in the Milky Way galaxy with NASA’s Spitzer Space Telescope and Wide-field Infrared Survey Explorer (WISE), and use of the Wyoming Infrared Observatory (WIRO) on Jelm Mountain, Wyo.

When some swift, massive stars – moving at > 50,000 miles/h- plow through space, they can cause material to stack up in front of them in the same way that water piles up ahead of a ship or a supersonic plane creates a shockwave in front of it. Called bow shocks, these dramatic arc-shaped features in space are helping researchers to uncover massive, so-called runaway stars...

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Zooming in on Black Holes

As part of the first observations with the new GRAVITY instrument the team looked closely at the bright, young stars known as the Trapezium Cluster, located in the heart of the Orion star-forming region. Already, from these first data, GRAVITY made a discovery: one of the components of the cluster (Theta1 Orionis F) was found to be a double star for the first time. The brighter double star Theta1 Orionis C is also well seen. The background image comes from the ISAAC instrument on ESO's Very Large Telescope. The views of two of the stars from GRAVITY, shown as inserts, reveal far finer detail than could be detected with the NASA/ESA Hubble Space Telescope. Credit: ESO/GRAVITY consortium/NASA/ESA/M. McCaughrean

As part of the first observations with the new GRAVITY instrument the team looked closely at the bright, young stars known as the Trapezium Cluster, located in the heart of the Orion star-forming region. Already, from these first data, GRAVITY made a discovery: one of the components of the cluster (Theta1 Orionis F) was found to be a double star for the first time. The brighter double star Theta1 Orionis C is also well seen. The background image comes from the ISAAC instrument on ESO’s Very Large Telescope. The views of two of the stars from GRAVITY, shown as inserts, reveal far finer detail than could be detected with the NASA/ESA Hubble Space Telescope. Credit: ESO/GRAVITY consortium/NASA/ESA/M. McCaughrean

GRAVITY at ESO’s VLT successfully combined starlight using all 4 Auxiliary Telesc...

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Most Energetic Light ever Observed from a Few Kilometers Large Star

The neutron star (red sphere) with its strong magnetic field (white lines) spins around itself nearly 30 times per second injecting energetic electrons in the space region around it. The green and blue shaded regions depict different particle acceleration zones from where the detected photons could originate. The green zone lies in the vicinity of the pulsar's magnetosphere, whereas the blue zone could be as far as 100,000 km away from the pulsar. Credit: Patricia Carcelén Marco

The neutron star (red sphere) with its strong magnetic field (white lines) spins around itself nearly 30 times per second injecting energetic electrons in the space region around it. The green and blue shaded regions depict different particle acceleration zones from where the detected photons could originate. The green zone lies in the vicinity of the pulsar’s magnetosphere, whereas the blue zone could be as far as 100,000 km away from the pulsar. Credit: Patricia Carcelén Marco

Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) observatory has found the most energetic pulsed emission radiation ever detected from the neutron star in the center of the supernova of 1054 A.D. ie Crab pulsar. It is the corpse left over when the star that created the Crab nebula exploded as a supernova...

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New Images of Dwarf planet Ceres

Kupalo Crater from LAMO. Credit: NASA/JPL

Kupalo Crater from LAMO. Credit: NASA/JPL

Features on dwarf planet Ceres that piqued the interest of scientists throughout 2015 stand out in exquisite detail in the latest images from NASA’s Dawn spacecraft, which recently reached its lowest-ever altitude at Ceres. Dawn took new images near its current altitude of 240 miles from Ceres, between Dec. 19 and 23, 2015.

Kupalo Crater, one of the youngest craters on Ceres, shows off many fascinating attributes at the high image resolution of 120 feet per pixel. The crater has bright material exposed on its rim, which could be salts, and its flat floor likely formed from impact melt and debris. Researchers will be looking closely at whether this material is related to the “bright spots” of Occator Crater...

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