An investigation of galaxy evolution using the Herschel ATLAS and a LOFAR radio

使用 Herschel ATLAS 和 LOFAR 无线电对星系演化的研究

• 批准号: 1644498
• 金额: --
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1644498
• 关键词: investigation; galaxy; evolution; using; Herschel

Cardiff has been leading the largest survey carried out with the Herschel SpaceObservatory, the Herschel ATLAS, which has discovered approximately half-a-milliondusty galaxies. The relatively poor angular resolution of Herschel has meant that wehave been able to identify at optical wavelengths the galaxies associated with theHerschel sources only at redshifts less than 0.5. Approximately 2/3 of the Herschelsources are at high redshifts out to z >>5.Most of the Herschel sources will also be radio sources and a new radio surveycarried out with the Low-Frequency Radio Survey (LOFAR) in the Netherlands willallow us to produce much more accurate positions for the Herschel sources. Thestudent will combine the Herschel and radio datasets and carry out an investigationof galaxy evolution out to z=5.

卡迪夫一直领导着赫歇尔太空天文台进行的最大规模的调查，赫歇尔阿特拉斯，已经发现了大约50万个尘埃星系。赫歇尔望远镜相对较差的角分辨率意味着我们只能在小于0.5的红移范围内识别出与赫歇尔光源相关的星系。大约2/3的赫歇尔源处于高红移至z> >5。大多数赫歇尔源也将是射电源，在荷兰进行的低频无线电调查（LOFAR）将使我们能够为赫歇尔源提供更准确的位置。该学生将结合赫歇尔和无线电数据集，对z=5以内的星系演化进行研究。