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MICROLENSING [2 records]

Record 1 1997-03-10

English

Subject field(s)
  • Atomic Physics
CONT

The most fruitful direction to look for "microlensing" is towards the Milky Way's nearest neighbouring galaxy, The Large Magellanic Cloud. Any light that reaches earth from the Cloud will have had to go through the Milky Way's halo, so if the halo is packed with MACHOs, their effect should show up.

CONT

The microlensing that makes stars seem brighter has a big brother of an illusion : the so-called gravitational lensing of one entire galaxy's light by another one lying in the way.

French

Domaine(s)
  • Physique atomique
OBS

Voir mini-lentille, effet lenticulaire gravitationnel et stratification lenticulaire.

Spanish

Save record 1

Record 2 1997-03-10

English

Subject field(s)
  • Atomic Physics
CONT

Cosmic travellers riding through the ether in their spacecraft might be as misled by mirages as thirsty nomads crossing the desert on camels. The microlensing that makes stars seem brighter has a big brother of an illusion : the so-called gravitational lensing of one entire galaxy's light by another one lying in the way. Rather than just brightening the resulting image, this effect distorts it. That turns out to be extremely useful for seeing dark matter.

OBS

The MACHO acts as a gravitational lens.

French

Domaine(s)
  • Physique atomique
OBS

Voir stratification lenticulaire, lentille gravitationnelle, effet minilenticulaire.

Spanish

Save record 2

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