New probe of non-Gaussianities with primordial black hole induced gravitational waves

Posted by dbos Tokyo

Kavli Affiliate: Misao Sasaki | First 5 Authors: Theodoros Papanikolaou, Xin-Chen He, Xiao-Han Ma, Yi-Fu Cai, Emmanuel N. Saridakis | Summary: We propose a new probe of primordial non-Gaussianities (NGs) through the observation of gravitational waves (GWs) induced by ultra-light ($M_{text{PBH}}< 10^{9}rm{g}$) primordial black holes (PBHs). Interestingly enough, the existence of primordial NG can leave […]


Continue.. New probe of non-Gaussianities with primordial black hole induced gravitational waves

New probe of non-Gaussianities with primordial black hole induced gravitational waves

Posted by dbos Tokyo

Kavli Affiliate: Misao Sasaki | First 5 Authors: Theodoros Papanikolaou, Xin-Chen He, Xiao-Han Ma, Yi-Fu Cai, Emmanuel N. Saridakis | Summary: We propose a new probe of primordial non-Gaussianities (NGs) through the observation of gravitational waves (GWs) induced by ultra-light ($M_{text{PBH}}< 10^{9}rm{g}$) primordial black holes (PBHs). Interestingly enough, the existence of primordial NG can leave […]


Continue.. New probe of non-Gaussianities with primordial black hole induced gravitational waves

Observational Evidence for Hot Wind Impact on pc-scale in Low-luminosity Active Galactic Nucleus

Posted by dbos Peking

Kavli Affiliate: Feng Yuan | First 5 Authors: Fangzheng Shi, Feng Yuan, Zhiyuan Li, Zhao Su, Suoqing Ji | Summary: Supermassive black holes in galaxies spend majority of their lifetime in the low-luminosity regime, powered by hot accretion flow. Strong winds launched from the hot accretion flow have the potential to play an important role […]


Continue.. Observational Evidence for Hot Wind Impact on pc-scale in Low-luminosity Active Galactic Nucleus

Stellar Surface Magnetic Fields Impact Limb Darkening

Posted by dbos MIT

Kavli Affiliate: Sara Seager | First 5 Authors: Nadiia M. Kostogryz, Alexander I. Shapiro, Veronika Witzke, Robert H. Cameron, Laurent Gizon | Summary: Stars appear darker at their limbs than at their disk centers because at the limb we are viewing the higher and cooler layers of stellar photospheres. Limb darkening derived from state-of-the-art stellar […]


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Stellar Surface Magnetic Fields Impact Limb Darkening

Posted by dbos MIT

Kavli Affiliate: Sara Seager | First 5 Authors: Nadiia M. Kostogryz, Alexander I. Shapiro, Veronika Witzke, Robert H. Cameron, Laurent Gizon | Summary: Stars appear darker at their limbs than at their disk centers because at the limb we are viewing the higher and cooler layers of stellar photospheres. Limb darkening derived from state-of-the-art stellar […]


Continue.. Stellar Surface Magnetic Fields Impact Limb Darkening

Validation of a Third Planet in the LHS 1678 System

Posted by dbos MIT

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Michele L. Silverstein, Thomas Barclay, Joshua E. Schlieder, Karen A. Collins, Richard P. Schwarz | Summary: The nearby LHS 1678 (TOI-696) system contains two confirmed planets and a wide-orbit, likely-brown-dwarf companion, which orbit an M2 dwarf with a unique evolutionary history. The host star occupies a narrow […]


Continue.. Validation of a Third Planet in the LHS 1678 System

Validation of a Third Planet in the LHS 1678 System

Posted by dbos MIT

Kavli Affiliate: Avi Shporer | First 5 Authors: Michele L. Silverstein, Thomas Barclay, Joshua E. Schlieder, Karen A. Collins, Richard P. Schwarz | Summary: The nearby LHS 1678 (TOI-696) system contains two confirmed planets and a wide-orbit, likely-brown-dwarf companion, which orbit an M2 dwarf with a unique evolutionary history. The host star occupies a narrow […]


Continue.. Validation of a Third Planet in the LHS 1678 System

Validation of a Third Planet in the LHS 1678 System

Posted by dbos MIT

Kavli Affiliate: Sara Seager | First 5 Authors: Michele L. Silverstein, Thomas Barclay, Joshua E. Schlieder, Karen A. Collins, Richard P. Schwarz | Summary: The nearby LHS 1678 (TOI-696) system contains two confirmed planets and a wide-orbit, likely-brown-dwarf companion, which orbit an M2 dwarf with a unique evolutionary history. The host star occupies a narrow […]


Continue.. Validation of a Third Planet in the LHS 1678 System

Tip of the iceberg: overmassive black holes at 4<z<7 found by JWST are not inconsistent with the local $mathcal{M}_{rm BH}$-$mathcal{M}_star$ relation

Posted by dbos Tokyo

Kavli Affiliate: John D. Silverman | First 5 Authors: Junyao Li, John D. Silverman, Yue Shen, Marta Volonteri, Knud Jahnke | Summary: JWST is revealing a new remarkable population of high-redshift ($zgtrsim4$), low-luminosity Active Galactic Nuclei (AGNs) in deep surveys and detecting the host galaxy stellar light in the most luminous and massive quasars at […]


Continue.. Tip of the iceberg: overmassive black holes at 4<z<7 found by JWST are not inconsistent with the local $mathcal{M}_{rm BH}$-$mathcal{M}_star$ relation

SeD: Semantic-Aware Discriminator for Image Super-Resolution

Posted by dbos Peking

Kavli Affiliate: Li Xin Li | First 5 Authors: Bingchen Li, Xin Li, Hanxin Zhu, Yeying Jin, Ruoyu Feng | Summary: Generative Adversarial Networks (GANs) have been widely used to recover vivid textures in image super-resolution (SR) tasks. In particular, one discriminator is utilized to enable the SR network to learn the distribution of real-world […]


Continue.. SeD: Semantic-Aware Discriminator for Image Super-Resolution