I have seen the term superficial gravity used and it seems to be equivalent to surface gravity

seen, e.g., here http://arxiv.org/pdf/1701.02295

Is there any difference between superficial and surface gravity? When should one be using one or the other?

  • 7
    $\begingroup$ The author is Portuguese. In Portuguese, "surface" is "superfície". If you look at the equations, you'll see that the definition ($\log g$) corresponds to "surface gravity". I suspect the standard term has been lost in translation. $\endgroup$
    – pela
    Apr 2 '17 at 18:39
  • 1
    $\begingroup$ @pela even in English the word "superficial" means "on (or above) the surface." $\endgroup$
    – Asher
    Apr 8 '17 at 23:14
  • $\begingroup$ The author in not Portuguese. Brazilian, instead. But he speaks Portuguese, though. $\endgroup$ Jun 18 '19 at 15:23

The term "superficial" means "on the surface," so "superficial gravity" is the same as surface gravity. As @pela pointed out in the comments, the author of the article is Portuguese and in that language the word for surface is 'superficie.'


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.