the latex tools package array.sty was reimplemented in October 2022. this new version (array.sty 2.5+) conflicts with the current deep/heinous re-working of tabular/deluxetable in aastex631. It makes it impossible to use p{} columns.
The work around is to use an old version of array (<2.5). Two old versions of array are available on CTAN.
array.sty v2.4m (link fixed) works with AASTeX 6.3.1. Copy this array-2020-02-10.sty file to array.sty in your working directory and latex will pick it up and allow you to use p{} columns in tabular/deluxetable with AASTeX 6.3.1.
Fix is to stop heinously reworking tabular in aastex, but so much is built on that reimplementation.
the latex tools package array.sty was reimplemented in October 2022. this new version (array.sty 2.5+) conflicts with the current deep/heinous re-working of tabular/deluxetable in aastex631. It makes it impossible to use
p{}columns.The work around is to use an old version of array (<2.5). Two old versions of array are available on CTAN.
array.sty v2.4m (link fixed) works with AASTeX 6.3.1. Copy this
array-2020-02-10.styfile toarray.styin your working directory and latex will pick it up and allow you to usep{}columns in tabular/deluxetable with AASTeX 6.3.1.Fix is to stop heinously reworking tabular in aastex, but so much is built on that reimplementation.