Prospects and challenges in developing the next generation astronomical sub-millimetre and terahertz heterodyne receivers [0.03%]
下一代天文亚毫米及太赫兹变频接收机的发展前景与挑战
Boon-Kok Tan
Boon-Kok Tan
The development of next-generation astronomical receivers operating at millimetre (mm), sub-mm, and terahertz frequencies is essential to meet the increasing demand for wide-field, high-spectral-resolution observations. In this work, we exa...
J Anton Zensus
J Anton Zensus
Advances in Very Long Baseline Interferometry (VLBI) have enabled, for the first time, horizon-scale images of the two most accessible supermassive black hole candidates: M87* at the centre of the elliptical galaxy Messier 87 and Sgr A* at ...
The abundances of carbon and nitrogen in the atmospheres of classical Be stars [0.03%]
经典Be星大气中碳和氮的丰度
Geraldine J Peters,Kenneth G Gayley,Rina G Rast et al.
Geraldine J Peters et al.
Hot stars born as rapid rotators are expected to induce meridional currents that mix hydrogen from the envelope into the core and return CNO-cycle processed material to the envelope, which should enhance the N at the surface at the expense ...
Superluminous supernovae: diverse rise times explain diverse spectra [0.03%]
超亮超新星：多样的上升时间可以解释其多样性的光谱类型
Matt Nicholl
Matt Nicholl
Type I superluminous supernovae (SLSNe) are a diverse class of exceptionally bright massive star explosions, which typically exhibit absorption from ionised oxygen in their early spectra. While their photometric properties (luminosity and d...
Paola Pinilla
Paola Pinilla
This manuscript investigates the impact of key dust evolution parameters-disc viscosity, fragmentation velocity, and the initial gas disc critical radius-on dust retention and trapping in protoplanetary discs. Using models with and without ...
Leah K Morabito,Neal Jackson,Jurjen de Jong et al.
Leah K Morabito et al.
The International LOFAR Telescope (ILT) is a pan-European radio interferometer with baselines up to 2000 km. This provides sub-arcsecond resolution at frequencies of
Antoine Bédard
Antoine Bédard
White dwarfs are the dense, burnt-out remnants of the vast majority of stars, condemned to cool over billions of years as they steadily radiate away their residual thermal energy. To first order, their atmosphere is expected to be made pure...
Revealing the atmospheres of highly irradiated exoplanets: from ultra-hot Jupiters to rocky worlds [0.03%]
揭秘高度辐射的系外行星大气：从超级热木星到岩石星球
Megan Mansfield
Megan Mansfield
Spectroscopy of transiting exoplanets has revealed a wealth of information about their atmospheric compositions and thermal structures. In particular, studies of highly irradiated exoplanets at temperatures much higher than those found in o...
Adolfo L Mendez
Adolfo L Mendez
This contribution is aimed at an analysis of the dynamics of free-electron density fluctuations in the ionospheric critical plasma frequency f0F2 by using some tools from the theory of nonlinear dynamical systems. The results suggest the ex...
Sun Kwok
Sun Kwok
A family of unidentified infrared emission (UIE) bands has been observed throughout the Universe. The current observed spectral properties of the UIE bands are summarized. These properties are discussed in the frameworks of different models...