I am currently studying some research papers, and was unable to replicate one of the calculations (I get a different result than what was stated by the authors). I have carefully studied that part of the paper and checked over my work multiple times, so I think it's reasonably likely that there's an error. The paper in question has two authors, and I have sent a very nicely worded email including my calculations to the first author. Should I also send an email to the second author? Or should I at least wait for some time for the first author to potentially respond?

1 Answer 1


It probably would have been better to send to both initially. But since that option isn't open, perhaps you can wait a reasonable time for a reply. But, if the mail was "informational" rather than requesting feedback, then you might not get a reply.

But, a week or so is a reasonable wait time. You can also send a follow up, but to both.

  • It was indeed (explicitly) requesting feedback. Jul 22, 2021 at 19:20
  • Just include both on future correspondence unless they request otherwise.
    – Buffy
    Jul 22, 2021 at 19:21
  • Even though they are both full professors, they no longer work at the same institution, and the first author (the one I emailed) is much older and more experienced than the other (in fact, he seems to be at the end of his career, and I'm a bit concerned that he won't respond). Jul 22, 2021 at 19:22
  • 1
    Don't guess. I'm old and at the end of my career (and past), but I respond.
    – Buffy
    Jul 22, 2021 at 19:24
  • 1
    @ThePointer Remember it's summer for most of the population, and people (even professors!) of all ages like to go on vacation in summer. Best to not expect a reply within several weeks perhaps.
    – Bryan Krause
    Jul 22, 2021 at 19:36

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .