апсорпција

апсорпција

Decrease in the intensity of radiation, representing energy converted into excitation or ionization of electrons in the region through which the radiation travels. As contrasted with monochromatic scattering (in which reemission occurs in all directions at the same frequency), the inverse process of emission refers to radiation that is reemitted in general in all directions and at all frequencies.

0 0

التحسين

إضافة صورة

نوع المصطلح: اسم
المرادف (المرادفات)
مسرد المصطلحات
المجال / النطاق: علم الفلك
الفئة: فلك عام
Company: Caltech
المنتج:
الاختصار-المختصر:

المزيد

إضافة إلى My Glossary

لغات أخرى:

المزيد

ماذا ترغب أن تقول؟

انظر المصطلحات المشابهة

ахроматска леќа

علم الفلك; فلك عام

Lens (or combination of lenses) that brings different wavelenghts within a ray of light to a single focus, thus overcoming chromatic aberration. It was first successfully made by ...

активна галаксија

علم الفلك; فلك عام

1) Active galactic nuclei are very luminous. Their energy output is in two forms: nonthermal continuum and thermal emission line. 2) Any galaxy which is emitting large quantities ...

активна оптика

علم الفلك; فلك عام

Controlling the shape of a telescope mirror at a relatively slow rate.

единица на забрзување

علم الفلك; فلك عام

A unit for measuring acceleration, which is metre per second squared.

зголемување

علم الفلك; فلك عام

1) A process by which a star accumulates matter as it moves through a dense cloud of interstellar gas; or, more generally, whereby matter surrounding a star flows toward it (as in ...