利用类星体检验宇宙学基础博士研究员
Testing the foundations of cosmology with quasars
原帖优先：申请材料、截止时间与资格以原帖和学校官方说明为准。
博士招生与资助公告
- 申请年度
- 2027；原帖说明：How to apply Apply now You need to: • choose programme type (Research), 2027/28, Faculty of Engineering and Physical Sciences • select Full time or Part time • search for programme PhD Physics (7089) • add name of the supervisor in section 2 of the application Applications should include: • your CV (resumé) • 2 academic references • degree transcripts and certificates to date • English language qualification (if applicable)
- 最近申请截止
- 2027-01-06
- 全部申请截止
- （Europe/London）
- 资助原文
- Fees and funding We offer a range of funding opportunities for both UK and international students. Horizon Europe fee waivers automatically cover the difference between overseas and UK fees for qualifying students. Competition-based Presidential Bursaries from the University cover the difference between overseas and UK fees for top-ranked applicants. Competition-based studentships offered by our schools typically cover UK-level tuition fees and a stipend for living costs for top-ranked applicants. Funding will be awarded on a rolling basis, so apply early for the best opportunity to be considered. For more information, please visit our postgraduate research funding pages.
- 资助条件
- 原帖为竞争性或附条件资助说明，未确认本项目获资助及申请人能获奖；不作为保证全奖。
- 原帖材料说明
- • your CV (resumé)
- • 2 academic references
- • degree transcripts and certificates to date
- • English language qualification (if applicable)
确定性信息来自对应版本的完整原帖。原帖只提供日期，日末和学校当地时区为本站转换假设。筛选使用最后申请截止；资助与录取以学校审核结果为准。
AI 中文速览
- 研究内容
- 本项目利用超大质量黑洞作为指路明灯，通过分析公开的 WISE 和 Gaia 类星体星表（结合光谱及 SPHEREx、Euclid 数据），研究宇宙在大尺度上是否具有统计各向同性，检验类星体空间分布的偶极子信号是源于新物理、宇宙结构还是观测偏差。
- 申请条件
- 申请者需持有英国 2:1 荣誉学士学位或同等国际学历，并熟练掌握任意语言的科学计算。
- 待遇
- 提供英国本土及国际学生的多种资助机会，包括竞争性的校长奖学金（Presidentural Bursaries）、学校提供的学费及生活费资助奖学金，以及地平线欧洲计划学费减免。
- 申请方式
- 申请人需通过大学系统选择研究型项目（Research）、2027/28学年、工程与物理科学学院（Faculty of Engineering and Physical Sciences），选择全职或兼职，搜索 PhD Physics (7089) 项目，并在申请的第二部分添加导师姓名，截止日期为2027年1月6日。
- 材料清单
- 简历（CV / resumé）
- 2份学术推荐信
- 迄今为止的学位成绩单与证书
- 英语语言资格证明（如适用）
由 gemini-2.5-flash-lite 生成，博士岗判定置信度 100%。
岗位信息
- 最终轮次截止
- 2027-01-06
- 学科
- 物理与天文
- 合同类型
- 项目资助
- 本站收录
- 内容更新
- 原帖导师候选（待核验）
- Poshak Gandhi
- 来源
- 南安普顿大学博士研究项目招生 · 最近核对 2026-10-24
- 详情核验
判定依据（原文摘录）
- is_phd
Type of degree Doctor of Philosophy
- bachelor_ok
A UK 2:1 honours degree, or its international equivalent.
- english_ok
English language qualification (if applicable)
原文
View all current projects
Postgraduate research project
Testing the foundations of cosmology with quasars
Funding
Competition funded
Competition funded
View fees and funding
Type of degree
Doctor of Philosophy
Entry requirements
2:1 honours degree
2:1 honours degree
View full entry requirements
Faculty graduate school
Faculty of Engineering and Physical Sciences
Closing date
6 Jan 2027
On this page
About the project
Potential supervisors
Entry requirements
Fees and funding
How to apply
Contact us
About the project
Potential supervisors
Entry requirements
Fees and funding
How to apply
Contact us
About the project
Does the Universe look the same in every direction? Distant quasars, powered by giant black holes, hint that it might not. Using public telescope surveys, this project will investigate whether that surprising signal reveals a problem with our understanding of the Universe or arises from how we observe the sky.
Is the Universe statistically isotropic on the largest scales? This assumption underpins our standard cosmological model, yet observations of distant quasars have revealed a possible challenge. Their sky distribution shows a dipole whose amplitude and direction may differ from expectations based on our motion relative to the cosmic microwave background. Whether this reflects new physics, cosmic structure or observational biases remains unresolved.
In this project, you will use supermassive black holes as beacons to test this assumption. You will analyse public WISE and Gaia quasar catalogues, supported by public spectroscopy and complementary SPHEREx and Euclid releases where available. Infrared spectra will help establish how quasar colours and spectral shapes influence the expected signal, while high resolution imaging will help identify blended sources and contaminants.
Key goals include:
• measuring dipole amplitudes and directions for quasar samples selected by brightness, colour and redshift
• modelling how Galactic dust, survey sensitivity, source confusion and incomplete sky coverage affect these measurements
• developing simulations and Bayesian methods that distinguish observer motion, cosmic clustering and additional anisotropy
• testing whether consistent results emerge across surveys while accounting for shared data and selection effects
The project combines observational astrophysics, cosmology and data science. You will develop analysis tools and publish constraints on cosmic isotropy, with valuable outcomes whether the anomaly persists or is explained by survey effects. Training will cover scientific computing, statistical inference, survey analysis and scientific communication. You will need to be comfortable with scientific computing in any language of your choice.
The School of Physics and Astronomy is committed to promoting equality, diversity inclusivity as demonstrated by our Athena SWAN award. We welcome all applicants regardless of their gender, ethnicity, disability, sexual orientation or age, and will give full consideration to applicants seeking flexible working patterns and those who have taken a career break. The University has a generous maternity policy, onsite childcare facilities, and offers a range of benefits to help ensure employees’ well-being and work-life balance. The University of Southampton is committed to sustainability and has been awarded the Platinum EcoAward.
Potential supervisors
Lead supervisor
Professor Poshak Gandhi
Professor of Astrophysics
Research interests
• Data-intensive Astronomy
• Time-domain astrophysics, Black Holes, Lunar astronomy
• Novel survey techniques on anything in the cosmos, really.
Entry requirements
A UK 2:1 honours degree, or its international equivalent.
You should be comfortable with scientific computing in any language of your choice.
Fees and funding
We offer a range of funding opportunities for both UK and international students. Horizon Europe fee waivers automatically cover the difference between overseas and UK fees for qualifying students.
Competition-based Presidential Bursaries from the University cover the difference between overseas and UK fees for top-ranked applicants.
Competition-based studentships offered by our schools typically cover UK-level tuition fees and a stipend for living costs for top-ranked applicants.
Funding will be awarded on a rolling basis, so apply early for the best opportunity to be considered.
For more information, please visit our postgraduate research funding pages.
How to apply
Apply now
You need to:
• choose programme type (Research), 2027/28, Faculty of Engineering and Physical Sciences
• select Full time or Part time
• search for programme PhD Physics (7089)
• add name of the supervisor in section 2 of the application
Applications should include:
• your CV (resumé)
• 2 academic references
• degree transcripts and certificates to date
• English language qualification (if applicable)
Contact us
Faculty of Engineering and Physical Sciences
For questions about applying, email our Doctoral College (doctoralcollege-admissions@soton.ac.uk).
Project leader
For an initial conversation, email Professor Poshak Gandhi (poshak.gandhi@soton.ac.uk).