{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,10]],"date-time":"2025-12-10T08:32:22Z","timestamp":1765355542338,"version":"3.38.0"},"reference-count":35,"publisher":"Wiley","issue":"9-10","license":[{"start":{"date-parts":[[2010,11,22]],"date-time":"2010-11-22T00:00:00Z","timestamp":1290384000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Astron Nachr"],"published-print":{"date-parts":[[2010,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Through the observational study of stellar pulsations, the internal structure of stars can be probed and theoretical models can be tested. The main sequence \u2010<jats:italic>\u03b3<\/jats:italic>Doradus (Dor) and<jats:italic>\u03b4<\/jats:italic>Scuti (Sct) stars with masses 1.2\u20132.5 M<jats:sub>\u2299<\/jats:sub>are particularly interesting for asteroseismic study. The \u2010<jats:italic>\u03b3<\/jats:italic>Dor stars pulsate in high\u2010order gravity (g) modes, with pulsational periods of order of one day. The<jats:italic>\u03b4<\/jats:italic>Sct stars, on the other hand, show low\u2010order g and pressure (p) modes with periods of order of 2 hours. Theory predicts the existence of \u2018hybrid\u2019 stars, i.e. stars pulsating in both types of modes, in an overlap region between the instability strips of \u2010<jats:italic>\u03b3<\/jats:italic>Dor and<jats:italic>\u03b4<\/jats:italic>Sct stars in the Hertzsprung\u2010Russell diagram. Hybrid stars are particularly interesting as the two types of modes probe different regions of the stellar interior and hence provide complementary model constraints. Before the advent of Kepler, only a few hybrid stars had been confirmed. The Kepler satellite is providing a true revolution in the study of and search for hybrid stars. Analysis of the first 50 days of Kepler data of hundreds of \u2010<jats:italic>\u03b3<\/jats:italic>Dor and<jats:italic>\u03b4<\/jats:italic>Sct candidates reveals extremely rich frequency spectra, with most stars showing frequencies in both the<jats:italic>\u03b4<\/jats:italic>Sct and \u2010<jats:italic>\u03b3<\/jats:italic>Dor frequency range. As these results show that there are practically no pure<jats:italic>\u03b4<\/jats:italic>Sct or \u2010<jats:italic>\u03b3<\/jats:italic>Dor pulsators, a new observational classification scheme is proposed by Grigahc\u00e8ne et al. (2010). We present their results and characterize 234 stars in terms of<jats:italic>\u03b4<\/jats:italic>Sct, \u2010<jats:italic>\u03b3<\/jats:italic>Dor,<jats:italic>\u03b4<\/jats:italic>Sct\/\u2010<jats:italic>\u03b3<\/jats:italic>Dor or \u2010<jats:italic>\u03b3<\/jats:italic>Dor\/<jats:italic>\u03b4<\/jats:italic>Sct hybrids (\u00a9 2010 WILEY\u2010VCH Verlag GmbH &amp; Co. KGaA, Weinheim)<\/jats:p>","DOI":"10.1002\/asna.201011443","type":"journal-article","created":{"date-parts":[[2010,11,22]],"date-time":"2010-11-22T08:23:56Z","timestamp":1290414236000},"page":"989-992","source":"Crossref","is-referenced-by-count":16,"title":["Kepler observations: Light shed on the hybrid<i>\u03b3<\/i>Doradus \u2013<i>\u03b4<\/i>Scuti pulsation phenomenon"],"prefix":"10.1002","volume":"331","author":[{"given":"A.","family":"Grigahc\u00e8ne","sequence":"first","affiliation":[]},{"given":"K.","family":"Uytterhoeven","sequence":"additional","affiliation":[]},{"given":"V.","family":"Antoci","sequence":"additional","affiliation":[]},{"given":"L.","family":"Balona","sequence":"additional","affiliation":[]},{"given":"G.","family":"Catanzaro","sequence":"additional","affiliation":[]},{"given":"J.","family":"Daszy\u0144ska\u2010Daszkiewicz","sequence":"additional","affiliation":[]},{"given":"J.A.","family":"Guzik","sequence":"additional","affiliation":[]},{"given":"G.","family":"Handler","sequence":"additional","affiliation":[]},{"given":"G.","family":"Houdek","sequence":"additional","affiliation":[]},{"given":"D.W.","family":"Kurtz","sequence":"additional","affiliation":[]},{"given":"M.","family":"Marconi","sequence":"additional","affiliation":[]},{"given":"M.J.P.F.G.","family":"Monteiro","sequence":"additional","affiliation":[]},{"given":"A.","family":"Moya","sequence":"additional","affiliation":[]},{"given":"V.","family":"Ripepi","sequence":"additional","affiliation":[]},{"given":"J.\u2010C.","family":"Su\u00e1rez","sequence":"additional","affiliation":[]},{"given":"W.J.","family":"Borucki","sequence":"additional","affiliation":[]},{"given":"T.M.","family":"Brown","sequence":"additional","affiliation":[]},{"given":"J.","family":"Christensen\u2010Dalsgaard","sequence":"additional","affiliation":[]},{"given":"R.L.","family":"Gilliland","sequence":"additional","affiliation":[]},{"given":"J.M.","family":"Jenkins","sequence":"additional","affiliation":[]},{"given":"H.","family":"Kjeldsen","sequence":"additional","affiliation":[]},{"given":"D.","family":"Koch","sequence":"additional","affiliation":[]},{"given":"S.","family":"Bernabei","sequence":"additional","affiliation":[]},{"given":"P.","family":"Bradley","sequence":"additional","affiliation":[]},{"given":"M.","family":"Breger","sequence":"additional","affiliation":[]},{"given":"M.","family":"Di Criscienzo","sequence":"additional","affiliation":[]},{"given":"M.\u2010A.","family":"Dupret","sequence":"additional","affiliation":[]},{"given":"R.A.","family":"Garc\u00eda","sequence":"additional","affiliation":[]},{"given":"A.","family":"Garc\u00eda Hern\u00e1ndez","sequence":"additional","affiliation":[]},{"given":"J.","family":"Jackiewicz","sequence":"additional","affiliation":[]},{"given":"A.","family":"Kaiser","sequence":"additional","affiliation":[]},{"given":"H.","family":"Lehmann","sequence":"additional","affiliation":[]},{"given":"S.","family":"Mart\u00edn\u2010Ruiz","sequence":"additional","affiliation":[]},{"given":"P.","family":"Mathias","sequence":"additional","affiliation":[]},{"given":"J.","family":"Molenda\u2010\u017bakowicz","sequence":"additional","affiliation":[]},{"given":"J.M.","family":"Nemec","sequence":"additional","affiliation":[]},{"given":"J.","family":"Nuspl","sequence":"additional","affiliation":[]},{"given":"M.","family":"Papar\u00f3","sequence":"additional","affiliation":[]},{"given":"M.","family":"Roth","sequence":"additional","affiliation":[]},{"given":"R.","family":"Szab\u00f3","sequence":"additional","affiliation":[]},{"given":"M.D.","family":"Suran","sequence":"additional","affiliation":[]},{"given":"R.","family":"Ventura","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2010,11,22]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"crossref","unstructured":"Antoci V. Handler G. Carrier F. et al.:2009 in: J.A. Guzik P.A. Bradley (eds.) Stellar Pulsation: Challenges for Theory and Observation AIPC 1170 p. 440","DOI":"10.1063\/1.3246539"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1093\/mnras\/270.4.905"},{"key":"e_1_2_1_4_1","doi-asserted-by":"crossref","first-page":"L176","DOI":"10.1088\/2041-8205\/713\/2\/L176","volume":"713","author":"Bedding T.R.","year":"2010","journal-title":"ApJ"},{"key":"e_1_2_1_5_1","unstructured":"Borucki W.J. Koch D.G. Dunham E.W. Jenkins J.M.:1997 in: D. Soderblom (ed.) Planets Beyond the Solar System and the Next Generation of Space Missions ASPC 119 p. 153"},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1178312"},{"key":"e_1_2_1_7_1","doi-asserted-by":"crossref","unstructured":"Bouabid M.\u2010P. Montalb\u00e1n J. Miglio A. Dupret M.\u2010A. Grigahc\u00e8ne A. Noels A.:2009 in: A. Guzik P.A. Bradley (eds.) Stellar Pulsation: Challenges for Theory and Observation AIPC 1170 p. 477","DOI":"10.1063\/1.3246547"},{"key":"e_1_2_1_8_1","first-page":"851","volume":"313","author":"Breger M.","year":"1996","journal-title":"A&A"},{"key":"e_1_2_1_9_1","unstructured":"Campante T.L. Grigahc\u00e8ne A. Su\u00e1rez J.C. Monteiro M.J.P.F.G.:2010 astro\u2010ph\/1003.4427"},{"key":"e_1_2_1_10_1","unstructured":"Catanzaro G. Ripepi V. Bernabei S. et al.:2010 MNRAS submitted"},{"key":"e_1_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.1088\/2041-8205\/713\/2\/L169"},{"key":"e_1_2_1_12_1","first-page":"24","volume":"14","author":"Chevalier C.","year":"1971","journal-title":"A&A"},{"key":"e_1_2_1_13_1","doi-asserted-by":"publisher","DOI":"10.1051\/0004-6361:20041817"},{"key":"e_1_2_1_14_1","first-page":"366","volume":"77","author":"Dupret M.\u2010A.","year":"2006","journal-title":"Mem. Soc. Astron. Ital."},{"key":"e_1_2_1_15_1","doi-asserted-by":"publisher","DOI":"10.1086\/650399"},{"key":"e_1_2_1_16_1","doi-asserted-by":"publisher","DOI":"10.1051\/0004-6361:20041816"},{"key":"e_1_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1088\/2041-8205\/713\/2\/L192"},{"key":"e_1_2_1_18_1","doi-asserted-by":"publisher","DOI":"10.1086\/312908"},{"key":"e_1_2_1_19_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2966.2009.15005.x"},{"key":"e_1_2_1_20_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-8711.2002.05401.x"},{"key":"e_1_2_1_21_1","doi-asserted-by":"publisher","DOI":"10.1086\/527460"},{"key":"e_1_2_1_22_1","doi-asserted-by":"publisher","DOI":"10.1088\/2041-8205\/713\/2\/L187"},{"key":"e_1_2_1_23_1","doi-asserted-by":"publisher","DOI":"10.1086\/428373"},{"key":"e_1_2_1_24_1","first-page":"582","volume":"351","author":"Houdek G.","year":"1999","journal-title":"A&A"},{"key":"e_1_2_1_25_1","doi-asserted-by":"publisher","DOI":"10.1553\/cia148s28"},{"key":"e_1_2_1_26_1","doi-asserted-by":"publisher","DOI":"10.1088\/2041-8205\/713\/2\/L198"},{"key":"e_1_2_1_27_1","doi-asserted-by":"publisher","DOI":"10.1093\/mnras\/238.4.1077"},{"key":"e_1_2_1_28_1","unstructured":"Mathias P. et al.:2009 in: J.A. Guzik P.A. Bradley (eds.) Stellar Pulsation: Challenges for Theory and Observation AIPC 1170 p. 486"},{"key":"e_1_2_1_29_1","doi-asserted-by":"publisher","DOI":"10.1553\/cia150s333"},{"key":"e_1_2_1_30_1","doi-asserted-by":"publisher","DOI":"10.1553\/cia148s34"},{"key":"e_1_2_1_31_1","doi-asserted-by":"publisher","DOI":"10.1051\/0004-6361:20021322"},{"key":"e_1_2_1_32_1","doi-asserted-by":"publisher","DOI":"10.1051\/0004-6361:20066209"},{"key":"e_1_2_1_33_1","doi-asserted-by":"publisher","DOI":"10.1051\/0004-6361:20053114"},{"key":"e_1_2_1_34_1","doi-asserted-by":"publisher","DOI":"10.1051\/0004-6361:200809992"},{"key":"e_1_2_1_35_1","first-page":"993","volume":"331","author":"Uytterhoeven K.","year":"2010","journal-title":"AN"},{"key":"e_1_2_1_36_1","unstructured":"Uytterhoeven K. Szabo R. Southworth J. et al.:2010b astroph\/1003.6089"}],"container-title":["Astronomische Nachrichten"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fasna.201011443","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/asna.201011443","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,2,28]],"date-time":"2025-02-28T03:58:13Z","timestamp":1740715093000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/asna.201011443"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2010,11,22]]},"references-count":35,"journal-issue":{"issue":"9-10","published-print":{"date-parts":[[2010,12]]}},"alternative-id":["10.1002\/asna.201011443"],"URL":"https:\/\/doi.org\/10.1002\/asna.201011443","archive":["Portico"],"relation":{},"ISSN":["0004-6337","1521-3994"],"issn-type":[{"type":"print","value":"0004-6337"},{"type":"electronic","value":"1521-3994"}],"subject":[],"published":{"date-parts":[[2010,11,22]]}}}