Sorry folks This is a vintage jet - no afterburner. Most jet exhausts looked hot from behind at high power settings - see the comments below which i may have extracted from a certain "public" website.
Early B.1s were engined with the Olympus 101. Later aircraft were delivered with Olympus 102s. All Olympus 102s became the Olympus 104 of 13,000 lbf (58 kN) thrust on overhaul and ultimately 13,500 lbf (60 kN) thrust on uprating.[121] The first B.2 flew with the second-generation Olympus 200 of 16,000 lbf (71 kN) thrust,[122] design of which began in 1952.[123] Subsequent B.2s were engined with either the uprated Olympus 201 of 17,000 lbf (76 kN) thrust or the Olympus 301 of 20,000 lbf (89 kN) thrust. The Olympus 201 was designated 202 on being fitted with a rapid air starter.[124] The engine would later be developed into a reheated (afterburning) powerplant for the cancelled supersonic BAC TSR-2 strike bomber and the supersonic passenger transport Concorde.[81]