|
Search over 100 encyclopedias and dictionaries: |
Research categories | Follow us on Twitter |
Research categories
View all topics in the newsView all reference sources at Encyclopedia.com |
|||
afterglow
afterglow The electromagnetic radiation often observed after a gamma‐ray burst (GRB). As a shockwave of gas from a GRB ploughs into the surrounding gas and dust, kinetic energy is converted into radiation, creating the afterglow. The emission is synchrotron radiation from electrons accelerated in magnetic fields within the shock and can be observed at X‐ray, optical, and radio wavelengths in succession as the shockwave expands and cools. The afterglow appears first hours to weeks after the initial GRB is detected, and later may be detected at longer wavelengths. It can last about a week as seen at X‐ray wavelengths, for several weeks at optical wavelengths, and up to a year at radio wavelengths.
|
|
|
Cite this article
"afterglow." A Dictionary of Astronomy. 1997. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>. "afterglow." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O80-afterglow.html "afterglow." A Dictionary of Astronomy. 1997. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-afterglow.html |
|
afterglow
af·ter·glow / ˈaftərˌglō/ • n. [in sing.] light or radiance remaining in the sky after the sun has set. ∎ good feelings remaining after a pleasurable or successful experience: basking in the afterglow of victory. |
|
|
Cite this article
"afterglow." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>. "afterglow." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O999-afterglow.html "afterglow." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-afterglow.html |
|
afterglow
afterglow
•aloe, callow, fallow, hallow, mallow, marshmallow, sallow, shallow, tallow
•Pablo, tableau
•cashflow • Anglo • matelot
•Carlo, Harlow, Marlowe
•Bargello, bellow, bordello, cello, Donatello, fellow, jello, martello, mellow, morello, niello, Novello, Pirandello, Portobello, Punchinello, Uccello, violoncello, yellow
•pueblo • bedfellow • playfellow
•Oddfellow • Longfellow
•schoolfellow • Robin Goodfellow
•airflow • halo • Day-Glo
•filo, kilo
•armadillo, billow, cigarillo, Murillo, Negrillo, peccadillo, pillow, tamarillo, Utrillo, willow
•inflow • Wicklow • furbelow • Angelo
•pomelo • uniflow
•kyloe, lilo, milo, silo
•Apollo, follow, hollow, Rollo, swallow, wallow
•Oslo • São Paulo • outflow
•bolo, criollo, polo, solo, tombolo
•rouleau • regulo • modulo • mudflow
•diabolo • bibelot • pedalo • underflow
•buffalo
•brigalow, gigolo
•bungalow
•Michelangelo, tangelo
•piccolo • tremolo • alpenglow • tupelo
•contraflow • afterglow • overflow
•furlough • workflow
|
|
|
Cite this article
"afterglow." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 30 May. 2012 <http://www.encyclopedia.com>. "afterglow." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (May 30, 2012). http://www.encyclopedia.com/doc/1O233-afterglow.html "afterglow." Oxford Dictionary of Rhymes. 2007. Retrieved May 30, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-afterglow.html |
|
Search over 100 encyclopedias and dictionaries:
HighBeam™ Research, Inc. © Copyright 2012. All rights reserved.
The Encyclopedia.com advertising network includes:
