Spectral variability of photospheric radiation due to faculae II: Facular contrasts for cool main-sequence stars

Kavli Affiliate: Robert Cameron | First 5 Authors: Charlotte M. Norris, Yvonne C. Unruh, Veronika Witzke, Sami K. Solanki, Natalie A. Krivova | Summary: Magnetic features on the surface of stars, such as spots and faculae, cause stellar spectral variability on time-scales of days and longer. For stars other than the Sun, the spectral signatures […]


Continue.. Spectral variability of photospheric radiation due to faculae II: Facular contrasts for cool main-sequence stars

Two Warm Neptunes transiting HIP 9618 revealed by TESS & Cheops

Kavli Affiliate: Robert F. Goeke | First 5 Authors: Hugh P. Osborn, Grzegorz Nowak, Guillaume Hébrard, Thomas Masseron, J. Lillo-Box | Summary: HIP 9618 (HD 12572, TOI-1471, TIC 306263608) is a bright ($G=9.0$ mag) solar analogue. TESS photometry revealed the star to have two candidate planets with radii of $3.9 pm 0.044$ $R_oplus$ (HIP 9618 […]


Continue.. Two Warm Neptunes transiting HIP 9618 revealed by TESS & Cheops

Knowing-how & Knowing-that: A New Task for Machine Comprehension of User Manuals

Kavli Affiliate: Jia Liu | First 5 Authors: Hongru Liang, Jia Liu, Weihong Du, Dingnan Jin, Wenqiang Lei | Summary: The machine reading comprehension (MRC) of user manuals has huge potential in customer service. However, current methods have trouble answering complex questions. Therefore, we introduce the Knowing-how & Knowing-that task that requires the model to […]


Continue.. Knowing-how & Knowing-that: A New Task for Machine Comprehension of User Manuals

Resolving galactic-scale obscuration of X-ray AGN at $zgtrsim1$ with COSMOS-Web

Kavli Affiliate: John D. Silverman | First 5 Authors: John D. Silverman, Vincenzo Mainieri, Xuheng Ding, Daizhong Liu, Knud Jahnke | Summary: A large fraction of the accreting supermassive black hole population is shrouded by copious amounts of gas and dust, particularly in the distant ($zgtrsim1$) Universe. While much of the obscuration is attributed to […]


Continue.. Resolving galactic-scale obscuration of X-ray AGN at $zgtrsim1$ with COSMOS-Web

Resolving galactic-scale obscuration of X-ray AGN at $zgtrsim1$ with COSMOS-Web

Kavli Affiliate: John D. Silverman | First 5 Authors: John D. Silverman, Vincenzo Mainieri, Xuheng Ding, Daizhong Liu, Knud Jahnke | Summary: A large fraction of the accreting supermassive black hole population is shrouded by copious amounts of gas and dust, particularly in the distant ($zgtrsim1$) Universe. While much of the obscuration is attributed to […]


Continue.. Resolving galactic-scale obscuration of X-ray AGN at $zgtrsim1$ with COSMOS-Web

A Crystallizing White Dwarf in a Sirius-Like Quadruple System

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Alexander Venner, Simon Blouin, Antoine Bédard, Andrew Vanderburg, | Summary: The observational signature of core crystallization of white dwarfs has recently been discovered. However, the magnitude of the crystallization-powered cooling delay required to match observed white dwarfs is larger than predicted by conventional models, requiring additional mechanisms […]


Continue.. A Crystallizing White Dwarf in a Sirius-Like Quadruple System

Measurement of $C!P$ asymmetries and branching-fraction ratios for $B^pm to DK^pm$ and $Dπ^pm$ with $Dto K^0_{rm S} K^pmπ^mp$ using Belle and Belle II data

Kavli Affiliate: T. Higuchi | First 5 Authors: Belle, Belle II Collaboration, :, I. Adachi, L. Aggarwal | Summary: We measure $C!P$ asymmetries and branching-fraction ratios for $B^pm to DK^pm$ and $Dpi^pm$ decays with $Dto K^0_{rm S} K^pmpi^mp$, where $D$ is a superposition of $D^0$ and $bar{D}^0$. We use the full data set of the […]


Continue.. Measurement of $C!P$ asymmetries and branching-fraction ratios for $B^pm to DK^pm$ and $Dπ^pm$ with $Dto K^0_{rm S} K^pmπ^mp$ using Belle and Belle II data

Search for a long-lived spin-0 mediator in $bto s$ transitions at the Belle II experiment

Kavli Affiliate: T. Higuchi | First 5 Authors: Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Aihara | Summary: Additional spin-0 particles appear in many extensions of the standard model. We search for long-lived spin-0 particles $S$ in $B$-meson decays mediated by a $bto s$ quark transition in $e^+e^-$ collisions at the $Upsilon(4S)$ […]


Continue.. Search for a long-lived spin-0 mediator in $bto s$ transitions at the Belle II experiment

A core in a star-forming disc as evidence of inside-out growth in the early Universe

Kavli Affiliate: Roberto Maiolino | First 5 Authors: William M. Baker, Sandro Tacchella, Benjamin D. Johnson, Erica Nelson, Katherine A. Suess | Summary: The physical processes that establish the morphological evolution and the structural diversity of galaxies are key unknowns in extragalactic astrophysics. Here we report the finding of the morphologically-mature galaxy JADES-GS+53.18343-27.79097, which existed […]


Continue.. A core in a star-forming disc as evidence of inside-out growth in the early Universe

JADES: The emergence and evolution of Ly$α$ emission and constraints on the IGM neutral fraction

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Gareth C. Jones, Andrew J. Bunker, Aayush Saxena, Joris Witstok, Daniel P. Stark | Summary: The rest-frame UV recombination emission line Ly$alpha$ can be powered by ionising photons from young massive stars in star forming galaxies, but its ability to be resonantly scattered by neutral gas complicates […]


Continue.. JADES: The emergence and evolution of Ly$α$ emission and constraints on the IGM neutral fraction