Novae as IR Transients

新星作为红外瞬变

• 批准号: 1816100
• 负责人: Jennifer Sokoloski
• 金额: $ 46.01万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-07-01 至 2024-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1816100&HistoricalAwards=false
• 关键词: Novae; IR; Transients

Novae are stars that brighten dramatically almost overnight due to an explosion on the surface of a star. Observations show that some of the dusty material ejected from the explosion must be cold and dense, even though it is surrounded by hot gas and high energy radiation. The investigator and her collaborators will test a new theory for how such hot and cold material can co-exist. They will also perform a census of novae in the northern hemisphere with optical and infrared telescopes. The PI will redesign and restart an annual intensive, week-long writing and presentation boot camp for graduate students, and will incorporate instruction on writing into a research seminar for graduate students. The PI and her collaborators will monitor northern novae with the Zwicky Transient Facility, an optical survey, and use the Gattini-IR telescope to address the question of how novae create dust. They will test the hypothesis that the colliding flows responsible for gamma ray emission from novae also lead to conditions favorable for dust formation. Because of the lower extinction in the IR compared to the optical, they will detect novae throughout the Galaxy and place strong constraints on the rate at which novae occur. This will have implications for our understanding of low-mass binary stellar evolution.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

新星是由于星星表面的爆炸而几乎在一夜之间戏剧性地变亮的恒星。观测表明，爆炸中喷射出的一些尘埃物质必须是冷而致密的，即使它被热气体和高能辐射包围。研究人员和她的合作者将测试一种新的理论，这种热和冷的材料如何共存。他们还将使用光学和红外望远镜对北方半球的新星进行普查。PI将重新设计和重新启动一个年度密集，为期一周的写作和演示靴子营的研究生，并将纳入写作教学研究研讨会的研究生。PI和她的合作者将用Zwicky Transient Facility（一项光学调查）监测北方的新星，并使用Gattini-IR望远镜来解决新星如何产生尘埃的问题。他们将检验一个假设，即负责新星伽马射线发射的碰撞流也会导致有利于尘埃形成的条件。由于红外线的消光比光学的低，它们将探测到整个银河系的新星，并对新星发生的速度施加强有力的限制。这个奖项反映了NSF的法定使命，并已被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。

项目成果

Palomar Gattini-IR: Survey Overview, Data Processing System, On-sky Performance and First Results

• DOI: 10.1088/1538-3873/ab6069
• 发表时间: 2019-10
• 期刊: Publications of the Astronomical Society of the Pacific
• 影响因子: 3.5
• 作者: K. De;M. Hankins;M. Kasliwal;A. Moore;E. Ofek;S. Adams;M. Ashley;A. Babul;A. Bagdasaryan

Shocks and dust formation in nova V809 Cep

nova V809 Cep 中的冲击和灰尘形成

• DOI: 10.1093/mnras/stac1366
• 发表时间: 2022
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Babul, Aliya-Nur;Sokoloski, Jennifer L.;Chomiuk, Laura;Linford, Justin D.;Weston, Jennifer H. S.;Aydi, Elias;Sokolovsky, Kirill V.;Kawash, Adam M.;Mukai, Koji
• 通讯作者: Mukai, Koji

Expanding Bipolar X-Ray Structure After the 2006 Eruption of RS Oph

• DOI: 10.3847/1538-4357/ac4583
• 发表时间: 2021-10
• 期刊: The Astrophysical Journal
• 作者: R. Montez;G. Luna;K. Mukai;J. Sokoloski;J. Kastner

Direct evidence for shock-powered optical emission in a nova

• DOI: 10.1038/s41550-020-1070-y
• 发表时间: 2020-04
• 期刊: Nature Astronomy
• 影响因子: 14.1
• 作者: E. Aydi;K. Sokolovsky;L. Chomiuk;E. Steinberg;Kwan-Lok Li;I. Vurm;B. Metzger;J. Strader;K. Muka

Classical Novae at Radio Wavelengths

• DOI: 10.3847/1538-4365/ac24ab
• 发表时间: 2021-07
• 期刊: The Astrophysical Journal Supplement Series
• 作者: L. Chomiuk;J. Linford;E. Aydi;K. Bannister;M. Krauss;A. Mioduszewski;K. Mukai;T. Nelson;M. Rupen;S. Ryder;J. Sokoloski;K. Sokolovsky;J. Strader;M. Filipović;T. Finzell;A. Kawash;E. Kool;B. Metzger;M. Nyamai;V. Ribeiro;N. Roy;R. Urquhart;J. Weston