MGMT 1050 Lecture Notes - Lecture 11: Stellar Magnetic Field, Radio Galaxy, The Strongest

• School: York University
• Department: Management
• Course: MGMT 1050
• Professor: Olga Kraminer

Document Summary

Ch 11 - radio astronomy and the discovery of exotic objects. Can be detected on earth both night and day (not overwhelmed by sunlight) as well as through clouds. Radiowaves are easier to detect from space than visible light waves (with the right instruments) Radio dishes do(cid:374)"t (cid:374)eed to (cid:271)e p(cid:396)ote(cid:272)ted f(cid:396)o(cid:373) the ele(cid:373)e(cid:374)ts, (cid:272)a(cid:374) (cid:271)e used 2(cid:1008) h(cid:396)s a da(cid:455), (cid:272)a(cid:374) (cid:271)e (cid:373)u(cid:272)h la(cid:396)ge(cid:396) tha(cid:374) mirror telescopes. Radio waves are the longest waves: can pass easily through clouds b. Easily detected with ground-level telescopes (they completely penetrate earth"s atmosphere) Earth"s atmosphere is capable of blocking shorter waves; however radiowaves have long waves which completely pass through it. *(cid:396)adio(cid:449)a(cid:448)es past (cid:1009)0 (cid:373) do(cid:374)"t (cid:373)ake it th(cid:396)ough ou(cid:396) at(cid:373)osphe(cid:396)e (cid:271)e(cid:272)ause the(cid:455) (cid:396)efle(cid:272)t of ou(cid:396) uppe(cid:396) at(cid:373)osphe(cid:396)e. Si(cid:374)(cid:272)e (cid:396)adio(cid:449)a(cid:448)es (cid:272)o(cid:373)pletel(cid:455) pass th(cid:396)ough the at(cid:373)osphe(cid:396)e, (cid:396)adio dishes do(cid:374)"t (cid:374)eed to (cid:271)e pla(cid:272)ed at high altitudes or in regions with a stable atmosphere c.