The COrE Collaboration, C. Armitage-Caplan, M. Avillez, D. Barbosa, A. Banday, N. Bartolo, R. Battye, JP. Bernard, P. de Bernardis, S. Basak, M. Bersanelli, P. … 展开作者
The COrE Collaboration, C. Armitage-Caplan, M. Avillez, D. Barbosa, A. Banday, N. Bartolo, R. Battye, JP. Bernard, P. de Bernardis, S. Basak, M. Bersanelli, P. Bielewicz, A. Bonaldi, M. Bucher, F. Bouchet, F. Boulanger, C. Burigana, P. Camus, A. Challinor, S. Chongchitnan, D. Clements, S. Colafrancesco, J. Delabrouille, M. De Petris, G. De Zotti, C. Dickinson, J. Dunkley, T. Ensslin, J. Fergusson, P. Ferreira, K. Ferriere, F. Finelli, S. Galli, J. Garcia-Bellido, C. Gauthier, M. Haverkorn, M. Hindmarsh, A. Jaffe, M. Kunz, J. Lesgourgues, A. Liddle, M. Liguori, M. Lopez-Caniego, B. Maffei, P. Marchegiani, E. Martinez-Gonzalez, S. Masi, P. Mauskopf, S. Matarrese, A. Melchiorri, P. Mukherjee, F. Nati, P. Natoli, M. Negrello, L. Pagano, D. Paoletti, T. Peacocke, H. Peiris, L. Perroto, F. Piacentini, M. Piat, L. Piccirillo, G. Pisano, N. Ponthieu, C. Rath, S. Ricciardi, J. Rubino Martin, M. Salatino, P. Shellard, R. Stompor, L. Toffolatti J. Urrestilla, B. Van Tent, L. Verde, B. Wandelt, S. Withington
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90 pages Latex 15 figures (revised 28 April 2011, references added, minor errors corrected)
COrE (Cosmic Origins Explorer) is a fourth-generation full-sky, microwave-band satellite recently proposed to ESA within Cosmic Vision 2015-2025. COrE will provide maps of the microwave sky in polarization and temperature in 15 frequency bands, ranging from 45 GHz to 795 GHz, with an angular resolution ranging from 23 arcmin (45 GHz) and 1.3 arcmin (795 GHz) and sensitivities roughly 10 to 30 times better than PLANCK (depending on the frequency channel). The COrE mission will lead to breakthrough science in a wide range of areas, ranging from primordial cosmology to galactic and extragalactic science. COrE is designed to detect the primordial gravitational waves generated during the epoch of cosmic inflation at more than $3σ$ for $r=(T/S)>=10^{-3}$. It will also measure the CMB gravitational lensing deflection power spectrum to the cosmic variance limit on all linear scales, allowing us to probe absolute neutrino masses better than laboratory experiments and down to plausible values suggested by the neutrino oscillation data. COrE will also search for primordial non-Gaussianity with significant improvements over Planck in its ability to constrain the shape (and amplitude) of non-Gaussianity. In the areas of galactic and extragalactic science, in its highest frequency channels COrE will provide maps of the galactic polarized dust emission allowing us to map the galactic magnetic field in areas of diffuse emission not otherwise accessible to probe the initial conditions for star formation. COrE will also map the galactic synchrotron emission thirty times better than PLANCK. This White Paper reviews the COrE science program, our simulations on foreground subtraction, and the proposed instrumental configuration.
Impacts of gravitational-wave standard siren observations from Einstein Telescope and Cosmic Explorer on weighing neutrinos in interacting dark energy models
Implications for Pulsar Timing Arrays of Sub-solar Black Hole Detections: From LVK to Einstein Telescope and Cosmic Explorer
Johannes Gutenberg University（约翰内斯·古腾堡大学）；Massachusetts Institute of Technology（麻省理工学院）；CERN（欧洲核子研究中心）；Universität Zürich（苏黎世大学）；Vrije Universiteit Brussel（布鲁塞尔自由大学）
Astro2020 White Paper: A Direct Measure of Cosmic Acceleration
在发现我们生活在膨胀的宇宙中近一个世纪后，在发现宇宙加速膨胀二十年后，仍然没有通过红移漂移（宇宙膨胀速度与时间的变化）直接检测到这种加速。由于宇宙学红移漂移直接决定了哈勃参数H（z），它可以说是对膨胀历史最干净的测量，并且有可能限制暗能量模型（例如Kim et al. 2015）。挑战在于信号很小-目前最好的观测约束具有比预期信号大几个数量级的不确定性（Darling 2012）。尽管如此，直接探测红移漂移正在变得可行，即将到来的设施，如ESO-ELT和SKA预计可能在20到30年内探测到。考虑到这种宇宙学测试的潜力，这个时间尺度长得令人不安。通过专门的实验，应该有可能快速加速进展，并在只有五年观测基线的情况下检测红移漂移。这样的设施也是精确测量系外行星径向速度的理想选择，可以作为正在进行的实验校准测量的副产品获得。
Origin and evolution of cosmic accelerators - the unique discovery potential of an UHE neutrino telescope: Astronomy Decadal Survey (2010-2020) Science White Paper
Roman CCS White Paper: Tracing stellar mass assembly and emerging quiescence at cosmic noon -- the case for deep imaging with all of Roman's wide filters in the HLTDS
本文论证了在 Roman 望远镜 HLTDS 中使用除 F146 外所有宽滤光片进行深度成像的必要性，以推动河外深场科学并改进 SN Ia 宇宙学系统学。
