X-ray Astronomy - Balloons


Balloon flights can carry instruments to altitudes of up to 40 km above sea level, where they are above as much as 99.997% of the Earth's atmosphere. Unlike a rocket where data are collected during a brief few minutes, balloons are able to stay aloft for much longer. However, even at such altitudes, much of the X-ray spectrum is still absorbed. X-rays with energies less than 35 keV (5,600 aJ) cannot reach balloons. On July 21, 1964, the Crab Nebula supernova remnant was discovered to be a hard X-ray (15 – 60 keV) source by a scintillation counter flown on a balloon launched from Palestine, Texas, USA. This was likely the first balloon-based detection of X-rays from a discrete cosmic X-ray source.

Read more about this topic:  X-ray Astronomy

Other articles related to "balloons, balloon":

Balloons - Physics - Air Pressure
... Once inflated with regular, atmospheric air, the air inside the balloon will have a greater air pressure than the original atmospheric air pressure ... In the case of balloon, it's supposed to measure how many particles at any in any given time space collide with the wall of the balloon and bounce off ... The first concept of air pressure within a balloon that is necessary to know is that air pressures "try" to even out ...
Lifting Gas - Balloons On Other Celestial Bodies
... A balloon can only have buoyancy if there is a medium that has a higher average density than the balloon itself ... Balloons cannot work on the Moon because it has almost no atmosphere ... thin atmosphere – the pressure is only 1/160th of earth atmospheric pressure – so a huge balloon would be needed even for a tiny lifting effect ...
Aerophile - Balloons
... The Aero30NG This tethered balloon 22,5 meters in diameter can receive up to 30 people at a time in its nacelle and up to 300 meters ... This balloon was installed at Disneyland in Paris, Ocean Park in Hong Kong and most recently Walt Disney World Resort in Orlando ... The Aero2 This is a charged helium balloon of 9 meters in diameter which offers a view to two passengers to around 90m above ground ...
School Of Ballooning - History
... constructed and flew a hydrogen-filled balloon of 10,000 cubic feet (280 m3) capacity ... By 1879 the unit had 5 balloons ... In 1880 military balloon training and demonstration took place at Aldershot ...
Stratospheric Sulfate Aerosols (geoengineering) - Delivery Methods
... High-altitude balloons can be used to lift precursor gases, in tanks, bladders or in the balloons' envelope ... Balloons can also be used to lift pipes and hoses, but no moored balloon has ever been deployed to the necessary altitude ...

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