{"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"publisher":"American Astronomical Society","author":[{"full_name":"Richer, Harvey B.","first_name":"Harvey B.","last_name":"Richer"},{"first_name":"Ronan","full_name":"Kerr, Ronan","last_name":"Kerr"},{"first_name":"Jeremy","full_name":"Heyl, Jeremy","last_name":"Heyl"},{"first_name":"Ilaria","full_name":"Caiazzo, Ilaria","last_name":"Caiazzo","orcid":"0000-0002-4770-5388","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d"},{"first_name":"Jeffrey","full_name":"Cummings, Jeffrey","last_name":"Cummings"},{"full_name":"Bergeron, Pierre","first_name":"Pierre","last_name":"Bergeron"},{"full_name":"Dufour, Patrick","first_name":"Patrick","last_name":"Dufour"}],"intvolume":"       880","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.1906.04727","open_access":"1"}],"volume":880,"title":"A massive magnetic helium atmosphere white dwarf binary in a young star cluster","citation":{"ista":"Richer HB, Kerr R, Heyl J, Caiazzo I, Cummings J, Bergeron P, Dufour P. 2019. A massive magnetic helium atmosphere white dwarf binary in a young star cluster. The Astrophysical Journal. 880(2), 75.","short":"H.B. Richer, R. Kerr, J. Heyl, I. Caiazzo, J. Cummings, P. Bergeron, P. Dufour, The Astrophysical Journal 880 (2019).","chicago":"Richer, Harvey B., Ronan Kerr, Jeremy Heyl, Ilaria Caiazzo, Jeffrey Cummings, Pierre Bergeron, and Patrick Dufour. “A Massive Magnetic Helium Atmosphere White Dwarf Binary in a Young Star Cluster.” <i>The Astrophysical Journal</i>. American Astronomical Society, 2019. <a href=\"https://doi.org/10.3847/1538-4357/ab2874\">https://doi.org/10.3847/1538-4357/ab2874</a>.","ama":"Richer HB, Kerr R, Heyl J, et al. A massive magnetic helium atmosphere white dwarf binary in a young star cluster. <i>The Astrophysical Journal</i>. 2019;880(2). doi:<a href=\"https://doi.org/10.3847/1538-4357/ab2874\">10.3847/1538-4357/ab2874</a>","ieee":"H. B. Richer <i>et al.</i>, “A massive magnetic helium atmosphere white dwarf binary in a young star cluster,” <i>The Astrophysical Journal</i>, vol. 880, no. 2. American Astronomical Society, 2019.","apa":"Richer, H. B., Kerr, R., Heyl, J., Caiazzo, I., Cummings, J., Bergeron, P., &#38; Dufour, P. (2019). A massive magnetic helium atmosphere white dwarf binary in a young star cluster. <i>The Astrophysical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.3847/1538-4357/ab2874\">https://doi.org/10.3847/1538-4357/ab2874</a>","mla":"Richer, Harvey B., et al. “A Massive Magnetic Helium Atmosphere White Dwarf Binary in a Young Star Cluster.” <i>The Astrophysical Journal</i>, vol. 880, no. 2, 75, American Astronomical Society, 2019, doi:<a href=\"https://doi.org/10.3847/1538-4357/ab2874\">10.3847/1538-4357/ab2874</a>."},"publication_status":"published","scopus_import":"1","_id":"15230","quality_controlled":"1","language":[{"iso":"eng"}],"article_type":"original","month":"07","publication_identifier":{"eissn":["1538-4357"],"issn":["0004-637X"]},"oa_version":"Preprint","extern":"1","publication":"The Astrophysical Journal","external_id":{"arxiv":["1906.04727"]},"date_created":"2024-03-26T10:37:01Z","issue":"2","abstract":[{"lang":"eng","text":"We have searched the Gaia DR2 catalog for previously unknown hot white dwarfs in the direction of young open star clusters. The aim of this experiment was to try and extend the initial–final mass relation (IFMR) to somewhat higher masses, potentially challenging the Chandrasekhar limit currently thought to be around 1.38 M⊙. We discovered a particularly interesting white dwarf in the direction of the young ∼150 Myr old cluster Messier 47 (NGC 2422). All Gaia indicators (proper motion, parallax, location in the Gaia color–magnitude diagram) suggest that it is a cluster member. Its spectrum, obtained from Gemini-South, yields a number of anomalies: it is a DB (helium-rich atmosphere) white dwarf, it has a large magnetic field (2.5 MG), is of high mass (∼1.06 M⊙), and its colors are very peculiar—particularly the redder ones (r, i, z and y), which suggests that it may have a late-type companion. This may be the only magnetized, detached binary white dwarf with a non-degenerate companion of any spectral type known in or out of a star cluster. If the white dwarf is a cluster member, as all indicators suggest, its progenitor had a mass just over 6 M⊙. It may, however, be telling an even more interesting story than the one related to the IFMR, one about the origin of stellar magnetic fields, SNe I, and gravitational waves from low-mass stellar systems."}],"day":"26","date_published":"2019-07-26T00:00:00Z","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","year":"2019","article_processing_charge":"No","date_updated":"2024-04-04T14:06:08Z","article_number":"75","doi":"10.3847/1538-4357/ab2874","status":"public","type":"journal_article","oa":1}