Astrophysics at Keele: the formation and evolution of galaxies, stars and planets

基尔天体物理学：星系、恒星和行星的形成和演化

• 批准号: ST/J001384/1
• 负责人: Coel Hellier
• 金额: $ 133.63万
• 依托单位: Keele University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2012
• 资助国家: 英国
• 起止时间: 2012 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FJ001384%2F1
• 关键词: Astrophysics; Keele; formation; evolution; galaxies

In understanding our place in the universe we need to know how many planets there are, how planetary systems form and evolve, and how many of them are like our Solar System, possibly harbouring life. The best way of studying planets is to find the ones that pass in front of ("transit") their star. By looking for the tiny dips in a star's light caused by a transiting planet, Keele's WASP-South survey has found more transiting planets than anyone else in the Southern hemisphere, and is using them to answer questions about how planetary systems form. Planets form around young stars, and star and planet formation are intimately connected. Keele will process the data from a very large survey of young stars and clusters of stars, using spectra obtained by ESO's Very Large Telescope, to combine with the unprecedented astrometry soon to be obtained by ESA's Gaia mission. The combination will provide the biggest survey yet of how stars and stellar clusters form and evolve. The two Magellanic Clouds are the two galaxies closest to our own, so close that they interact with our galaxy, providing an excellent opportunity to study how galaxies affect each other, with collisions and mergers thought to be important factors in explaining galaxies today. Keele's role in the new-generation radio survey of the Magellanic Clouds provided by the GASKAP project will provide the most detailed yet picture of the dynamics and interactions of our Milky way with these two satellite galaxies. At the cores of galaxies, supermassive black holes can grow by sucking in material from their surroundings. It is now realised that powerful winds generated by the swirling around a black hole can both regulate the growth of the black hole and affect the future evolution of the whole galaxy. A Keele-led program using the latest X-ray satellites studies the X-ray emission generated by the extreme gravity of the black hole to study the black-hole winds and their affect on their environment.

为了了解我们在宇宙中的位置，我们需要知道有多少行星，行星系统如何形成和演化，以及其中有多少像我们的太阳系一样，可能拥有生命。研究行星的最好方法是找到那些经过（“凌日”）其星星前面的行星。通过寻找凌日行星引起的星星光线的微小下降，基尔的WASP-南调查发现了比南半球任何其他人都多的凌日行星，并利用它们来回答有关行星系统如何形成的问题。行星围绕着年轻的恒星形成，而星星和行星的形成是密切相关的。基尔将利用ESO甚大望远镜获得的光谱，处理来自年轻恒星和星团的大型调查数据，以联合收割机与欧空局盖亚使命即将获得的前所未有的天体测量相结合。这一组合将提供迄今为止关于恒星和星团如何形成和演化的最大调查。这两个麦哲伦星云是离我们银河系最近的两个星系，它们与我们的银河系相互作用，为研究星系如何相互影响提供了极好的机会，碰撞和合并被认为是解释今天星系的重要因素。基尔在GASKAP项目提供的新一代麦哲伦云无线电调查中的作用将提供我们银河系与这两个卫星星系的动力学和相互作用的最详细的图片。在星系的核心，超大质量黑洞可以通过吸收周围的物质而成长。现在人们意识到，围绕黑洞旋转产生的强风既可以调节黑洞的生长，也可以影响整个星系的未来演化。Keele领导的一个项目使用最新的X射线卫星研究黑洞极端引力产生的X射线辐射，以研究黑洞风及其对环境的影响。

项目成果

SPITZER IMAGING OF THE NEARBY RICH YOUNG CLUSTER, Cep OB3b

• DOI: 10.1088/0004-637x/750/2/125
• 发表时间: 2012-03
• 期刊: The Astrophysical Journal
• 作者: T. Allen;R. Gutermuth;E. Kryukova;S. Thomas Megeath;J. Pipher;T. Naylor;R. Jeffries;S. Wolk;B. Spitzbart;J. Muzerolle

Assessing the viability of successful reconstruction of the dynamics of dark energy using varying fundamental couplings

• DOI: 10.1016/j.physletb.2012.09.062
• 发表时间: 2011-12
• 期刊: Physics Letters B
• 影响因子: 4.4
• 作者: P. Avelino;L. Losano;R. Menezes;J. Oliveira

MOA 2010-BLG-477Lb: CONSTRAINING THE MASS OF A MICROLENSING PLANET FROM MICROLENSING PARALLAX, ORBITAL MOTION, AND DETECTION OF BLENDED LIGHT

• DOI: 10.1088/0004-637x/754/1/73
• 发表时间: 2012-05
• 期刊: The Astrophysical Journal
• 作者: E. Bachelet;I. Shin;C. Han;P. Fouqu'e;A. Gould;J. Menzies;J. Beaulieu;D. Bennett;I. Bond;S. Dong;D. Heyrovsk'y;J. Marquette;J. Marshall;J. Skowron;R. Street;T. Sumi;A. Udalski;L. Abe;K. Agabi;M. Albrow;W. Allen;E. Bertin;M. Bos;D. Bramich;J. Chavez;G. Christie;A. Cole;N. Crouzet;S. Dieters;M. Dominik;J. Drummond;J. Greenhill;T. Guillot;C. Henderson;F. Hessman;K. Horne;M. Hundertmark;J. Johnson;U. Jørgensen;R. Kandori;C. Liebig;D. M'ekarnia;J. Mccormick;D. Moorhouse;T. Nagayama;D. Nataf;T. Natusch;S. Nishiyama;J. Rivet;K. Sahu;Y. Shvartzvald;G. Thornley;A. Tomczak;Y. Tsapras;J. Yee;V. Batista;C. S. Bennett;S. Brillant;J. Caldwell;A. Cassan;E. Corrales;C. Coutures;D. Prester;J. Donatowicz;D. Kubas;R. Martin;A. Williams;M. Zub;L. Almeida;D. Depoy;B. Gaudi;L. Hung;F. Jablonski;S. Kaspi;N. Klein;C.‐U. Lee;Y. Lee;J. Koo;D. Maoz;J. A. Muñoz;R. Pogge;D. Polishook;Avi Shporer;F. Abe;C. Botzler;P. Chote;M. Freeman;A. Fukui;K. Furusawa;P. Harris;Y. Itow;S. Kobara;C. Ling;K. Masuda;Y. Matsubara;N. Miyake;K. Ohmori;K. Ohnishi;N. Rattenbury;T. Saito;D. Sullivan;D. Suzuki;W. Sweatman;P. Tristram;K. Wada;P. Yock;M. Szyma'nski;I. Soszy'nski;M. Kubiak;R. Poleski;K. Ulaczyk;G. Pietrzy'nski;L. Wyrzykowski;N. Kains;C. Snodgrass;I. Steele;K. Alsubai;V. Bozza;P. Browne;M. Burgdorf;S. Novati;P. Dodds;S. Dreizler;F. Finet;T. Gerner;S. Hardis;K. Harpsoe;T. Hinse;E. Kerins;L. Mancini;M. Mathiasen;M. Penny;S. Proft;S. Rahvar;D. Ricci;G. Scarpetta;S. Schafer;F. Schonebeck;J. Southworth;J. Surdej;J. Wambsganss

DUSTY OB STARS IN THE SMALL MAGELLANIC CLOUD. II. EXTRAGALACTIC DISKS OR EXAMPLES OF THE PLEIADES PHENOMENON?

小麦哲伦云中布满灰尘的OB星。

• DOI: 10.1088/0004-637x/771/2/112
• 发表时间: 2013
• 期刊: The Astrophysical Journal
• 作者: Adams J

WASP-44b, WASP-45b and WASP-46b: three short-period, transiting extrasolar planets WASP-44b, WASP-45b and WASP-46b

WASP-44b、WASP-45b 和 WASP-46b：三颗短周期凌日系外行星 WASP-44b、WASP-45b 和 WASP-46b

• DOI: 10.1111/j.1365-2966.2012.20635.x
• 发表时间: 2012
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Anderson D