The evolution of white dwarfs is essentially a gravothermal process of cooling in which the basic ingredients for predicting their evolution are well identified, although not always well understood. There are two independent ways to test the cooling rate. One is the luminosity function of the white dwarf population, and another is the secular drift of the period of pulsation of those individuals that experience variations. Both scenarios are sensitive to the cooling or heating time scales, for which reason, the inclusion of any additional source or sink of energy will modify these properties and will allow to set bounds to these perturbations. These studies also require complete and statistical significant samples for which current large data surveys are providing an unprecedented wealth of information. In this paper we review how these techniques are applied to several cases like the secular drift of the Newton gravitational constant, neutrino magnetic moments, axions and weakly interacting massive particles (WIMPS).
Using horizon shadows to distinguish a black hole and a white hole
College of Science, Northeast Forestry University(东北林业大学理学院);School of Physics and Astronomy, Beijing Normal University(北京师范大学物理与天文学院);School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences(中国科学院大学杭州高等研究院基础物理与数学学院)
White Dwarf Binaries: Probes of Future Astrophysics
European Southern Observatory(欧洲南方天文台);Universitat Politècnica de Catalunya(加泰罗尼亚理工大学);Institut d’Estudis Espacials de Catalunya (IEEC)(加泰罗尼亚空间研究所);University of Warwick(华威大学);École Polytechnique Fédérale de Lausanne (EPFL)(洛桑联邦理工学院);Universidad Técnica Federico Santa María(费德里科·圣玛丽亚技术大学);São Paulo State University (UNESP)(圣保罗州立大学);University of Cambridge(剑桥大学);South African Astronomical Observatory(南非天文台);Center for Astrophysics, Harvard & Smithsonian(哈佛-史密森天体物理中心);Centro de Estudios de Física del Cosmos de Aragón (CEFCA)(阿拉贡宇宙物理学研究中心);Instituto de Astrofísica de Canarias(加那利天体物理研究所);Universidad de La Laguna(拉古纳大学);Max-Planck-Institut für Astrophysik(马克斯·普朗克天体物理研究所);Texas Tech University(德克萨斯理工大学);University of Hamburg(汉堡大学);INAF - Osservatorio Astronomico di Capodimonte(意大利国家天体物理研究所卡波迪蒙特天文台);Charles University(查理大学);University of Sheffield(谢菲尔德大学);Ruprecht-Karls-Universität(海德堡大学);Durham University(杜伦大学);University of Washington(华盛顿大学);KU Leuven(荷语鲁汶大学);Universidad de Valparaíso(瓦尔帕莱索大学)
Centro de Estudios de Física del Cosmos de Aragón(阿拉贡宇宙物理研究中心);INAF-OACNa(意大利国家天体物理研究所那不勒斯天文台);South African Astronomical Observatory(南非天文台);Department of Astronomy, University of Cape Town(开普敦大学天文学系);Department of Astrophysics/IMAPP, Radboud University(拉德堡德大学天体物理学/IMAPP系);INAF-OATS(意大利国家天体物理研究所的里雅斯特天文台);Departament de Física, EEBE, Universitat Politècnica de Catalunya(加泰罗尼亚理工大学EEBE物理系);Institut d’Estudis Espacials de Catalunya (IEEC)(加泰罗尼亚空间研究学院);Instituto de Astrofísica de Andalucía, IAA-CSIC(安达卢西亚天体物理研究所);Department of Physics and Astronomy, Texas Tech University(德克萨斯理工大学物理与天文学系);Hamburg Observatory, University of Hamburg(汉堡大学汉堡天文台);European Southern Observatory(欧洲南方天文台);Department of Physics, Centre for Extragalactic Astronomy, Durham University(杜伦大学河外天文中心物理系);Department of Physics, University of Warwick(华威大学物理系)
University of Cambridge(剑桥大学);Radboud University(拉伯德大学);University of Leicester(莱斯特大学);Durham(杜伦大学);University of Naples "Federico II"(那不勒斯费德里科二世大学);INAF(意大利国家天体物理研究所);Monash University(蒙纳士大学);DESY(德国电子同步辐射中心);University of Potsdam(波茨坦大学);U Northwestern, USA(美国西北大学);University of North Carolina, USA(美国北卡罗来纳大学);University of Ferrara, IT(意大利费拉拉大学);Princeton University, USA(美国普林斯顿大学);University of Copenhagen, DK(丹麦哥本哈根大学);ESA/ESTEC, NL(欧洲空间局/欧洲空间研究与技术中心);UMN, USA(美国明尼苏达大学);NYUAD, UAE(阿联酋纽约大学阿布扎比分校);Italian Space Agency, IT(意大利航天局);University of Sydney, Australia(澳大利亚悉尼大学);University College Dublin, IRE(爱尔兰都柏林大学学院);Albert Einstein Institute, DE(德国爱因斯坦研究所);Laboratoire d’Astrophysique de Marseille, FR(法国马赛天文台);University of Maryland College Park, USA(美国马里兰大学帕克分校);University of Amsterdam, NL(荷兰阿姆斯特丹大学)