Sentences with phrase «galactic cosmic rays»

The GRAPES - 3 muon telescope located at TIFR's Cosmic Ray Laboratory in Ooty recorded a burst of galactic cosmic rays of about 20 GeV, on 22 June 2015 lasting for two hours.

As an aerosol scientist, I found the results showing the detailed measurements of the influences of ammonia, organics and ions from galactic cosmic rays on aerosol formation exciting.

This effect is realized through modulation of the intensity of galactic cosmic ray fluxes penetrating the atmosphere.

They arrived at that date because that's when Voyager recorded a permanent drop in heliosphere - produced particles and an increase in galactic cosmic rays from outside the solar system.

However, little evidence remains for a link between galactic cosmic rays (GCR) and variations in Earth's cloudiness.

This is also relevant in order to better understand — and hopefully quantify - the hypothetical climate effects of galactic cosmic rays which I'll discuss in a follow - up post.

Astronauts who will take part in NASA's manned Mars mission will be exposed to galactic cosmic rays during their trip to the Red Planet.

Voyager 1 observes low - energy galactic cosmic rays in a region depleted of heliospheric ions.

«Mars - bound astronauts face chronic dementia risk from galactic cosmic ray exposure.»

«galactic cosmic rays appear to play a minor role for atmospheric aerosol formation events, and so for the connected aerosol - climate effects as well.»

This is why the hypothesis that galactic cosmic ray intensity changes result in more or fewer clouds and changing albedo.

«Exploring Mars will require missions of 900 days or longer and includes more than one year in deep space where exposures to all energies of galactic cosmic ray heavy ions are unavoidable,» Cucinotta explained.

Any solar effect (either direct or indirect) which is correlated to solar activity (i.e. solar irradiance, solar magnetic field [and thus galactic cosmic rays], ultraviolet [UV] radiation, etc.) is accounted for in the linear regression.

Any solar effect (either direct or indirect) which is correlated to solar activity (i.e. solar irradiance, solar magnetic field [and thus galactic cosmic rays], ultraviolet [UV] radiation, etc.) is accounted for in the linear regression.

«the variation of ionization by galactic cosmic rays over the decadal solar cycle does not entail a response... that would explain observed variations in global cloud cover»

Primary galactic cosmic rays enter the solar system from interstellar space, and are made up of protons with energies above 100 MeV, extending up to astronomically high energies.

Knowledge about past geomagnetic field variations on centennial to millennial scales is not only important to gain better understanding of the geodynamo process in the Earth's core, but also to estimate the geomagnetic shielding effect against galactic cosmic rays in space climate studies.

Numerical simulations performed by the GRAPES - 3 collaboration on this event indicate that the Earth's magnetic shield temporarily cracked due to the occurrence of magnetic reconnection, allowing the lower energy galactic cosmic ray particles to enter our atmosphere.

However, the main issue discussed in the paper by Sloan and Wolfendale was not the greenhouse effect, but rather the question about galactic cosmic rays and climate.

(Note: A couple of colleague of mine has direct experience with this in reconstructing galactic cosmic ray measurements and plasma fluxes far from Earth — no one satellite has produced enough data for a decent model, and yet there are little problems going from one dataset to another.)

That «backsplash» of protons, which was discovered by CRaTER and is known as the moon's radiation «albedo,» is caused by the partial reflection of galactic cosmic rays off the moon's surface.

People working for extended periods on the International Space Station, however, do not face the same level of bombardment with galactic cosmic rays because they are still within the Earth's protective magnetosphere.

Some physicists think galactic cosmic rays — high - energy particles originating from faraway stars — might affect cloud formation.

At the same time, the sensor detected a dramatic rise in the numbers of intense galactic cosmic rays that originate far beyond our solar system — the largest such jump since the craft was launched, the researchers report online and in a forthcoming issue of Geophysical Research Letters.

New observations bolster the case that galactic cosmic rays spring from the remains of stellar explosions

The researchers conclude that the radiation environment continues to pose significant hazards associated both with historically large galactic cosmic ray fluxes and large but isolated SEP events, which still challenge space weather prediction capabilities.

That magnetic field is then dragged out through the solar system by the solar wind and deflects galactic cosmic rays away from the solar system — and from any astronauts in transit.

High - energy particles called galactic cosmic rays could be an energy source for life on other planets.

«We believe that galactic cosmic rays come from groups of massive young stars called OB associations,» Binns says.

During Charon's long winters, radiation from the sun and galactic cosmic rays convertedthe atmosphere to heavier material that does not evaporate rapidly when temperatures rise.

Possibly most, if not all, galactic cosmic rays originate from supernovas and remnant pulsars.

CLOUD also finds that ions from galactic cosmic rays strongly enhance the production rate of pure biogenic particles — by a factor 10 - 100 compared with particles without ions.

The reason being to protect astronauts from «exposure to the spectrum of highly energetic nuclei that comprise galactic cosmic rays.»

With the exception of the Apollo missions to the moon, human space exploration missions have always been confined to low earth orbit (within 1,200 miles of earth), where Earth's magnetosphere repels the majority of radiation threats, including galactic cosmic rays and dangerous solar storms.

Once Ulysses was in its scheduled orbit, it began observing the solar wind and magnetic field strength at high solar latitudes, finding that the solar wind from high latitudes was moving at about 750 km / s (slower than expected), and that there were large magnetic waves emerging from high latitudes which scattered galactic cosmic rays.

They found that galactic cosmic rays exert only a small influence on the formation of sulphuric acid — dimethylamine clusters (the embryonic stage before aerosols may act as cloud condensation nuclei).

But just to be even clearer, in plain English, what this means is that for the most part it appears that galactic cosmic rays significantly increase the formation of cloud nucleation, the formation of a seed about which vapor can condense, perhaps orders of magnitude more than previously known.