Travel support for two observers to conduct astronomical observations at the LBT during the LBTB observing block in April 2018
为两名观察员在 2018 年 4 月 LBTB 观测时段期间到 LBT 进行天文观测提供差旅补助
基本信息
- 批准号:408039748
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2018
- 资助国家:德国
- 起止时间:2017-12-31 至 2019-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
1) Unevolved galaxies should have low-masses, low-metallicities, and a strong radiation fields due to recent starbursts and largely absent older stars. Therefore, they should emit strong UV continuum but very weak continua at longer wavelengths and extremely strong emission lines. At high redshifts these dwarfish galaxies are extremely hard to study, so we need good proxies for a more detailed looks at the involved processes. Such extreme emission line galaxies and extremely blue galaxies have been detected at intermediate redshifts, many have very low metallicity (below 0.1 Z_solar). We therefore have found decent proxies for protogalaxies, allowing detailed analyses. 2) The observation of nebular CIII] and CIV emission lines in z~7 galaxies triggered new interest in the nature of the hard radiation field needed for this emission lines to occur. Since not only very massive, low metallicity stars, but also massive X-ray binaries, accreting supermassive black hole, and even shocks may be possible sources of the hard continuum photons, the definition of a set of very local proxies is imperative, where spatial resolution and sensitivity allow a detailed study of the gas and individual ionization sources. 3) The ionization process of outflows and diffuse ionized gas halos in disk galaxies is still an unsolved puzzle. While a connection to star formation activity seems to be well established (but not fully understood), the ionization mechanism of the observed ionized gas is not well constrained: while photo-ionization certainly contributes, the observed line ratios and their change with distance from the disk require changes in the photon field and the presence of an additional currently unknown heating mechanism. 4) Spitzer and also HERSCHEL revealed a significant number of small bubbles in the Milky Way. In a couple of cases, it was possible to take optical spectra of the apparent central stars, which surprisingly often turned out to be evolved massive stars (Wolf-Rayet stars, candidates for Luminous Blue Variables, and OB supergiants). We target the bubbles and their central stars with LUCI NIR spectroscopy to classify the potentially highly absorbed part of the bubbles and investigate their evolutionary state and their central stars in a more unbiased way.
1)不演化的星系应该具有低质量,低金属丰度,以及由于最近的恒星爆发和基本上没有老恒星而产生的强辐射场。因此,它们应该发射强的紫外连续谱,但在较长波长和极强的发射谱线下发射非常弱的连续谱。在高红移下,这些矮星系非常难以研究,所以我们需要好的替代物来更详细地观察所涉及的过程。这种极端发射线星系和极端蓝色星系已经在中等红移处被探测到,许多具有非常低的金属丰度(低于0.1 Z_solar)。因此,我们已经找到了原星系的合适替代物,可以进行详细的分析。2)z~7星系中星云CIII]和CIV发射线的观测引发了人们对这些发射线所需的硬辐射场性质的新兴趣。由于不仅非常大质量、低金属丰度的恒星,而且大质量X射线双星、吸积超大质量黑洞甚至冲击都可能是硬连续谱光子的可能来源,因此定义一组非常局部的代理是必要的,其中空间分辨率和灵敏度允许对气体和单个电离源进行详细研究。3)盘星系外流和弥漫电离气晕的电离过程至今仍是一个未解之谜。虽然与星星形成活动的联系似乎已经建立(但尚未完全理解),但所观察到的电离气体的电离机制并没有得到很好的限制:虽然光电离肯定有贡献,但所观察到的线比率及其随距离盘的变化需要光子场的变化以及目前未知的额外加热机制的存在。4)斯皮策和赫歇尔揭示了银河系中大量的小气泡。在几个例子中,我们有可能获得视在中心的恒星的光谱,令人惊讶的是,这些恒星往往是演化的大质量恒星(沃尔夫-拉叶星,蓝变星的候选者,OB超巨星)。我们用LUCI近红外光谱对气泡及其中心恒星进行了定位,对气泡中潜在的高吸收部分进行了分类,并以更公正的方式研究了它们的演化状态及其中心恒星。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Privatdozent Dr. Dominik Bomans其他文献
Privatdozent Dr. Dominik Bomans的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Privatdozent Dr. Dominik Bomans', 18)}}的其他基金
Travel support for two observers to conduct astronomical observations at the LBT during April 2020
为 2020 年 4 月期间两名观察员在 LBT 进行天文观测提供差旅费
- 批准号:
447745156 - 财政年份:2020
- 资助金额:
-- - 项目类别:
Research Grants
Travel support for two observers to conduct astronomical observations at the LBT during June 2019
为 2019 年 6 月期间两名观察员在 LBT 进行天文观测提供差旅费
- 批准号:
431668537 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Research Grants
Travel support for two observers to conduct astronomical observations at the LBT during November 2019
为 2019 年 11 月期间两名观察员在 LBT 进行天文观测提供差旅费
- 批准号:
438825671 - 财政年份:2019
- 资助金额:
-- - 项目类别:
Research Grants
Travel support for two observers to conduct astronomical observations at the LBT during in September/October 2018
为两名观察员于 2018 年 9 月/10 月期间在 LBT 进行天文观测提供差旅费
- 批准号:
418766299 - 财政年份:2018
- 资助金额:
-- - 项目类别:
Research Grants
The origin of strong nebular HeII emission at low and high redshift
低红移和高红移强星云 HeII 发射的起源
- 批准号:
386864749 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Research Grants
Ionized halo gas, stellar streams, and evolution of low surface brightness galaxies
电离晕气体、恒星流和低表面亮度星系的演化
- 批准号:
178586371 - 财政年份:2010
- 资助金额:
-- - 项目类别:
Research Grants
Faint ionized gas in the halos of irregular dwarf galaxies
不规则矮星系晕中的微弱电离气体
- 批准号:
61559987 - 财政年份:2007
- 资助金额:
-- - 项目类别:
Research Grants
Warps in Low Surface Brightness Galaxies
低表面亮度星系中的扭曲
- 批准号:
34816667 - 财政年份:2006
- 资助金额:
-- - 项目类别:
Research Grants
Untersuchung des Aufbaus und der Entwicklung von nahen Galaxien
研究邻近星系的结构和演化
- 批准号:
27336742 - 财政年份:2006
- 资助金额:
-- - 项目类别:
Research Grants
Current star formation of LSB Galaxies
LSB 星系当前的恒星形成
- 批准号:
5455954 - 财政年份:2005
- 资助金额:
-- - 项目类别:
Research Grants
相似国自然基金
两性离子载体(zwitterionic support)作为可溶性支载体在液相有机合成中的应用
- 批准号:21002080
- 批准年份:2010
- 资助金额:19.0 万元
- 项目类别:青年科学基金项目
微生物发酵过程的自组织建模与优化控制
- 批准号:60704036
- 批准年份:2007
- 资助金额:21.0 万元
- 项目类别:青年科学基金项目
基于Support Vector Machines(SVMs)算法的智能型期权定价模型的研究
- 批准号:70501008
- 批准年份:2005
- 资助金额:17.0 万元
- 项目类别:青年科学基金项目
相似海外基金
Changes in the Ionic Basis of GABAergic Inhibition that Contribute to Post-traumatic Epilepsy
导致创伤后癫痫的 GABA 能抑制离子基础的变化
- 批准号:
10713240 - 财政年份:2023
- 资助金额:
-- - 项目类别:
In vivo 2-photon imaging of retinal biochemistry before and after retinal organoid transplantation
视网膜类器官移植前后视网膜生物化学的体内2光子成像
- 批准号:
10643273 - 财政年份:2023
- 资助金额:
-- - 项目类别:
SBIR Phase I: Narrative interface technology to support two-way human-computer interaction for the disabled community
SBIR第一阶段:支持残疾人社区双向人机交互的叙事界面技术
- 批准号:
2304553 - 财政年份:2023
- 资助金额:
-- - 项目类别:
Standard Grant
Cortical processing of three-dimensional object-motion
三维物体运动的皮层处理
- 批准号:
10638729 - 财政年份:2023
- 资助金额:
-- - 项目类别:
Integrating single-cell connectivity, gene expression, and function in zebra finches
整合斑胸草雀的单细胞连接、基因表达和功能
- 批准号:
10657971 - 财政年份:2023
- 资助金额:
-- - 项目类别:
MyPrEP Plus: Development and Pilot Testing of Novel Pre-Exposure Prophylaxis Support Tools for Transgender Women
MyPrEP Plus:针对跨性别女性的新型暴露前预防支持工具的开发和试点测试
- 批准号:
10618102 - 财政年份:2023
- 资助金额:
-- - 项目类别:
Neuroimaging and Electrophysiology Facility (NIEF)
神经影像和电生理学设施 (NIEF)
- 批准号:
10628976 - 财政年份:2023
- 资助金额:
-- - 项目类别:
Development of Cell Culture Inserts and 3D In Vitro Tissue Models Utilizing Novel Electrospun Scaffolds
利用新型静电纺丝支架开发细胞培养插入物和 3D 体外组织模型
- 批准号:
10697932 - 财政年份:2023
- 资助金额:
-- - 项目类别:
Smart Walk: A culturally tailored smartphone-delivered physical activity intervention to reduce cardiometabolic disease risk among African American women
Smart Walk:一种根据文化定制的智能手机提供的身体活动干预措施,以降低非裔美国女性的心脏代谢疾病风险
- 批准号:
10639951 - 财政年份:2023
- 资助金额:
-- - 项目类别: