Both Uses

palpable
in
Harry Potter and the Cursed Child
(Auto-generated)

His exhaustion palpable, his fear overwhelming.†
p. 92.3 *

palpable = very apparent
LUDO BAGMAN: The perils are plentiful, but the prizes are palpable.†
p. 233.6

Definitions:

(1) (palpable)
very apparent (so strong, it almost seems to take a material form that can be touched)

"Palpable" is frequently used to describe the intensity of an emotion shared between people who can see each other. The implication is that the emotion is so strong, it almost takes a material form that can be touched.
(2) (meaning too rare to warrant focus)
In medicine, "palpable" means that something such as a tumor can be detected by palpitation; i.e., a physician's touch.