Factor-Adjusted Location Tests for High-Dimensional Time Series

Kavli Affiliate: Feng Long| Summary: We study high-dimensional one-sample mean testing for time series with strong common serial dependence driven by latent dynamic factors. After estimating the dynamic factor loading space from lagged autocovariance, we project the data onto its orthogonal complement and construct three factor-adjusted tests: a max test for sparse alternatives, a quadratic […]


Continue.. Factor-Adjusted Location Tests for High-Dimensional Time Series

GATOS: Distinct Feedback Modes in AGN Central Regions Revealed by Spatially Resolved JWST Spectroscopy

Kavli Affiliate: Claudio Ricci | Summary:This manuscript presents JWST MIRI/MRS observations of the central $r approx 40-240$ pc regions of five active galactic nuclei (AGN) spanning a wide range of luminosities ($rm log,L_rm bol/rm erg,s^-1 approx 39.8-43.8$). Combining multiphase diagnostics from polycyclic aromatic hydrocarbons (PAHs), molecular hydrogen (H$_2$), and ionized gas at spatial scales of […]


Continue.. GATOS: Distinct Feedback Modes in AGN Central Regions Revealed by Spatially Resolved JWST Spectroscopy

SMA 200-400 GHz Survey for 10 faint Class II Disks in the Taurus Molecular Cloud

Kavli Affiliate: Feng Long| Summary: We have performed Submillimeter Array (SMA) observations of 198.0-407.5 GHz broadband spectra of 10 Class II protoplanetary disks in the Taurus-Auriga region. The 337 GHz flux densities ($F_rm 337 GHz$) of these objects are in the range of 8.2-34 mJy. The median and standard deviation of the 198-358 GHz spectral […]


Continue.. SMA 200-400 GHz Survey for 10 faint Class II Disks in the Taurus Molecular Cloud

Inflow-driven galaxy evolution – I. Revealing the physics of the fundamental metallicity relation

Kavli Affiliate: Yingjie Peng | Summary:We present a unified physical framework for the fundamental metallicity relation (FMR), based on the mass-continuity equations. The FMR is not merely the anti-correlation between star formation rate (SFR) and gas metallicity ($Z_rm g$) at fixed stellar mass ($M_star$); it is a redshift-invariant surface in the $(M_star,rm SFR,Z_rm g)$ space. […]


Continue.. Inflow-driven galaxy evolution – I. Revealing the physics of the fundamental metallicity relation

V557 Mon: Hot water vapour observed on an eruptive young star

Kavli Affiliate: Gregory Herczeg | Summary:In this paper, we present observations of an eruptive young star in the Rosette Nebula, identified by the Gaia Science Alerts system using Gaia time series data. We aim to investigate the evolution of the brightness and mass accretion rate of V557 Mon throughout its outburst and subsequent decline. In […]


Continue.. V557 Mon: Hot water vapour observed on an eruptive young star

Hot water emission during an outburst on a classical T Tauri star

Kavli Affiliate: Gregory Herczeg | Summary:In this paper, we present observations of an eruptive young star in the Rosette Nebula, identified by the Gaia Science Alerts system using Gaia time series data. We aim to investigate the evolution of the brightness and mass accretion rate of V557 Mon throughout its outburst and subsequent decline. In […]


Continue.. Hot water emission during an outburst on a classical T Tauri star

Hot water emission during an outburst in a classical T Tauri star

Kavli Affiliate: Gregory Herczeg | Summary:In this paper, we present observations of an eruptive young star in the Rosette Nebula, identified by the Gaia Science Alerts system using Gaia time series data. We aim to investigate the evolution of the brightness and mass accretion rate of V557 Mon throughout its outburst and subsequent decline. In […]


Continue.. Hot water emission during an outburst in a classical T Tauri star

XRISM Resolves the Circum-nuclear Environment of NGC 4945

Kavli Affiliate: Claudio Ricci | Summary:Compton-thick Active Galactic Nuclei (AGN) represent one of the most elusive phases of massive black hole growth, yet are expected to contribute substantially to the Cosmic X-ray Background and the integrated growth of massive black holes. NGC 4945 is the closest Compton-thick AGN and amongst the brightest AGN in the […]


Continue.. XRISM Resolves the Circum-nuclear Environment of NGC 4945

Broad Paschen lines as black hole mass tracers: A reverberation mapping calibration

Kavli Affiliate: Linhua Jiang | Summary:Single-epoch (SE) black hole mass estimators based on rest-frame ultraviolet or optical broad lines can be limited by dust attenuation or wavelength coverage. We calibrate estimators based on broad Paschen P$α$ and P$β$ directly against reverberation mapping (RM) masses. We obtained LBT/LUCI near-infrared spectra of 27 SDSS-RM quasars and combined […]


Continue.. Broad Paschen lines as black hole mass tracers: A reverberation mapping calibration