The dust enrichment of galaxies: supernovae and evolved stars

星系的尘埃富集：超新星和演化的恒星

• 批准号: PP/D00148X/1
• 负责人: Michael Barlow
• 金额: $ 23.47万
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2006
• 资助国家: 英国
• 起止时间: 2006 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=PP%2FD00148X%2F1
• 关键词: dust; enrichment; galaxies; supernovae; evolved

Supernovae occupy a pivotal position in astrophysics, not only because of their importance as standard candles and cosmological probes but also because of the prime role that they play in determining the overall energetics, mass recycling rate and heavy-element enrichment of galaxies. It has been hypothesised that supernovae (SNe) may be a major, or even dominant, source of dust particles in the Universe. Indirect support for this supposition comes from the fact that many of the earliest-formed galaxies known are extremely dusty and IR-luminous, as evidenced by the efficient detection of their redshifted dust emission at submillimetre wavelengths by SCUBA and other instruments. It seems that only massive stars can have produced the observed dust over the short timescales implied, either during during dusty mass-losing phases prior to the SN event or else within the expanding and cooling ejecta from the SN event. Dust formation models confirm that newly formed dust in SN ejecta should become detectable at mid-IR wavelengths within 1-2 years of outburst and that the mid-IR is particularly suitable to trace the onset of dust formation in SNe and to determine the amount of dust formed. With the advent of ground-based 8-m telescopes equipped with sensitive mid-IR instruments, such as Gemini's Michelle and TReCS, and the launch of the Spitzer Space Telescope (SST), sufficient sensitivity has become available to embark on searches for mid-IR emission from supernovae in nearby galaxies. Our SEEDS collaboration (Survey for Extragalactic Emission from Dust in Supernovae), composed of astronomers from North America and Europe, has obtained SST time to search for mid-IR dust emission from nearby supernovae hundreds of days after their outbursts, using the IRAC and MIPS instruments. In addition, we have accessed SINGS Legacy SST data on a number of nearby galaxies that have been obtained with the same instruments, in order to search for mid-IR emission from recent SNe within these galaxies. This proposal seeks continued postdoctoral funding in order to allow completion of the supernova dust project. In addition, new far-infrared and submillimetre mapping observations of extended dust shells around evolved stars will be obtained as part of Herschel Space Observatory Guaranteed Time observations following its launch by ESA in 2007, with the aim of addressing the `missing mass' problem for low and intermediate mass stars.

超新星在天体物理学中占有关键地位，这不仅是因为它们作为标准烛光和宇宙学探测器的重要性，而且还因为它们在确定星系的总体能量、质量再循环率和重元素富集度方面发挥主要作用。有人假设超新星（SNe）可能是宇宙中尘埃粒子的主要来源，甚至是主要来源。对这一假设的间接支持来自这样一个事实，即许多已知的最早形成的星系都是非常尘埃和红外发光的，这一点可以通过SCUBA和其他仪器在亚毫米波长下有效地探测到它们的红移尘埃辐射来证明。似乎只有大质量恒星才能在暗示的短时间尺度内产生所观察到的尘埃，无论是在SN事件之前的尘埃质量损失阶段，还是在SN事件的膨胀和冷却喷出物中。尘埃形成模型证实，新形成的尘埃在SN喷出物应成为可检测的中红外波长内1-2年的爆发，中红外线是特别适合于跟踪在SNe尘埃形成的开始，并确定形成的尘埃量。随着配备有敏感中红外仪器的地面8米望远镜的出现，如双子座的Michelle和TReCS，以及斯皮策太空望远镜（SST）的发射，已经有足够的灵敏度开始搜索附近星系超新星的中红外辐射。我们的SEEDS合作（超新星尘埃的河外辐射调查）由来自北美和欧洲的天文学家组成，使用IRAC和MIPS仪器获得了SST时间，以搜索爆发后数百天附近超新星的中红外尘埃辐射。此外，我们已经访问了一些附近的星系，已经获得了相同的仪器，以搜索中红外发射最近SNe在这些星系的SINGS遗产SST数据。该提案寻求继续提供博士后资金，以便完成超新星尘埃项目。此外，在欧空局于2007年发射赫歇尔空间天文台保证时间观测之后，将获得新的关于演化恒星周围扩展尘埃壳的远红外和亚毫米测绘观测，目的是解决低质量和中等质量恒星的“质量缺失”问题。

项目成果

Erratum: Dust yields in clumpy supernova shells: SN 1987A revisited

勘误：块状超新星壳中的尘埃产量：SN 1987A 重新审视

• DOI: 10.1111/j.1365-2966.2007.11994.x
• 发表时间: 2007
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Ercolano B

IPHAS A-TYPE STARS WITH MID-INFRARED EXCESSES IN SPITZER SURVEYS

斯皮策观测中中红外过量的 IPHAS A 型恒星

• DOI: 10.1088/0004-637x/695/1/75
• 发表时间: 2009
• 期刊: The Astrophysical Journal
• 作者: Hales A

Dust yields in clumpy supernova shells: SN 1987A revisited

• DOI: 10.1111/j.1365-2966.2006.11336.x
• 发表时间: 2006-11
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: B. Ercolano;M. Barlow;B. Sugerman

The UV-Excess survey of the northern Galactic plane

银河系北部平面的紫外线过量调查

• DOI: 10.1111/j.1365-2966.2009.15273.x
• 发表时间: 2009
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Groot P

Integral field spectroscopy of planetary nebulae: mapping the line diagnostics and hydrogen-poor zones with VLT FLAMES

• DOI: 10.1111/j.1365-2966.2008.13051.x
• 发表时间: 2008-02
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Y. Tsamis;J. Walsh;D. P'equignot;M. Barlow;I. J. Danziger;X.-W. Liu Ucl;ECF-ESO;Meudon;Trieste;Beijing