{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,20]],"date-time":"2025-05-20T11:12:42Z","timestamp":1747739562007},"reference-count":4,"publisher":"Cambridge University Press (CUP)","license":[{"start":{"date-parts":[[2017,2,8]],"date-time":"2017-02-08T00:00:00Z","timestamp":1486512000000},"content-version":"unspecified","delay-in-days":6978,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symp. - Int. Astron. Union"],"published-print":{"date-parts":[[1998]]},"abstract":"<jats:p>The edge of a convective region inside a star gives rise to a characteristic periodic signal in the frequencies of its global p-modes (e.g. [1], [4]), such that the frequencies \u03c9 are then essentially a smooth function of the mode order <jats:italic>n<\/jats:italic> plus a periodic component <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" mime-subtype=\"gif\" xlink:type=\"simple\" xlink:href=\"S0074180900238850_inline1\" \/>. Here the amplitude is <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" mime-subtype=\"gif\" xlink:type=\"simple\" xlink:href=\"S0074180900238850_inline2\" \/>, with <jats:italic>A<\/jats:italic><jats:sub>1<\/jats:sub> and <jats:italic>A<\/jats:italic><jats:sub>2<\/jats:sub> being values that depend weakly on frequency \u03c9: <jats:italic>A<\/jats:italic><jats:sub>1<\/jats:sub> is always present in general, but <jats:italic>A<\/jats:italic><jats:sub>2<\/jats:sub> will be non-zero only if there is overshoot; <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" mime-subtype=\"gif\" xlink:type=\"simple\" xlink:href=\"S0074180900238850_inline3\" \/> is essentially the acoustical depth \u03c4 (i.e. the sound travel time) of the edge of the convection zone measured from the surface of the star; and \u03a6<jats:sub>0<\/jats:sub> is a constant related to the phase of the eigenfunctions. To facilitate the comparison between different stars, we consider the amplitude evaluated at a fiducial frequency by defining <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" mime-subtype=\"gif\" xlink:type=\"simple\" xlink:href=\"S0074180900238850_inline4\" \/>. For the Sun, we chose as the reference frequency <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" mime-subtype=\"gif\" xlink:type=\"simple\" xlink:href=\"S0074180900238850_inline5\" \/>. If we take this value and scale it for other stars (using just a standard homology scaling for frequencies), we find <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" mime-subtype=\"gif\" xlink:type=\"simple\" xlink:href=\"S0074180900238850_inline6\" \/>.<\/jats:p>","DOI":"10.1017\/s0074180900238850","type":"journal-article","created":{"date-parts":[[2019,6,6]],"date-time":"2019-06-06T14:16:30Z","timestamp":1559830590000},"page":"315-316","source":"Crossref","is-referenced-by-count":2,"title":["Seismic Detection of Boundaries of Stellar Convective Regions"],"prefix":"10.1017","volume":"185","author":[{"given":"M\u00e1rio J.P.F.G.","family":"Monteiro","sequence":"first","affiliation":[]},{"given":"J\u00f8rgen","family":"Christensen-Dalsgaard","sequence":"additional","affiliation":[]},{"given":"Michael J.","family":"Thompson","sequence":"additional","affiliation":[]}],"member":"56","published-online":{"date-parts":[[2017,2,8]]},"reference":[{"key":"S0074180900238850_ref4","first-page":"247","volume":"283","author":"Monteiro","year":"1994","journal-title":"AandA"},{"key":"S0074180900238850_ref3","first-page":"87","volume":"293","author":"Kjeldsen","year":"1995","journal-title":"AandA"},{"key":"S0074180900238850_ref1","first-page":"283","volume":"276","author":"Christensen-Dalsgaard","year":"1995","journal-title":"MNRAS"},{"key":"S0074180900238850_ref2","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-61523-8"}],"container-title":["Symposium - International Astronomical Union"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0074180900238850","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,6,6]],"date-time":"2019-06-06T14:17:53Z","timestamp":1559830673000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0074180900238850\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1998]]},"references-count":4,"alternative-id":["S0074180900238850"],"URL":"https:\/\/doi.org\/10.1017\/s0074180900238850","relation":{},"ISSN":["0074-1809"],"issn-type":[{"value":"0074-1809","type":"print"}],"subject":[],"published":{"date-parts":[[1998]]}}}