The [CII]-to-molecular gas conversion factor evolves from over 10,000 to about 10 solar masses per solar luminosity as galaxies enrich from very low metallicity at high redshift to higher values later, making a redshift-independent factor unusable.
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A z=6.64 LRD host galaxy exhibits a fast AGN-driven outflow with 5500 km/s velocities, dusty gas, and low metallicity, confirming AGN presence in these systems.
N-body and SPH simulations show that gas accretion along a galactic warp can generate global, long-lived phase spirals in the stellar disc with amplitudes comparable to those observed by Gaia.
Speckle imaging of 81 RR Lyrae stars detects 10 likely bound companions at 20-220 AU separations, yielding a binary fraction estimate above 12 percent.
A ~1 solar-mass main-sequence star with supersolar metallicity has been traced back to the galactic center as a hypervelocity star ejected by the Hills mechanism.
Stellar mass functions in the peaks of the Hyperion protostructure at z~2.5 show a mass-dependent excess relative to the field, with ~10x enhancement at log(M*/M⊙)~11 versus ~3.5x at log(M*/M⊙)~9.5.
Mass and radius of PSR J0030+0451 measured as 1.44 solar masses and 13.02 km, improving astrophysical constraints on the cold dense matter equation of state.
New envelope binding energies derived from PARSEC stellar tracks alter compact binary merger rate densities by over an order of magnitude when used in population synthesis.
The HRIEUV PSF at 174 Å redistributes 57% of light via diffraction (26%) and scattering (42%), and deconvolution with it boosts bright structure intensities by up to 40% while reducing dark areas by up to 85%.
Topography on tidally locked M-dwarf planets induces stationary Rossby waves that strengthen cross-terminator jets, boost nightside moisture transport and cloud formation, and reduce the critical stellar flux for global deglaciation.
Random forest models using early magnitudes, time differences, and new magnitude rates identify up to 13.6% of true broad-lined Ic supernovae in unseen test data.
OzDES final release delivers 62 new reverberation-mapped black hole masses and tighter lag-luminosity relations for Hβ, MgII, and CIV in high-redshift AGN after correcting for survey-length selection effects.
Extended-image strong lensing model of cluster G165 reduces mass-parameter uncertainties by over an order of magnitude and maps dust extinction in the host of SN H0pe at z=1.78, finding A_V ≈ 0.9 mag near the explosion site.
GravSphere2 extends Jeans modeling to fourth order with LOS and PM data plus flexible anisotropy forms to recover mass density, anisotropy, and density slope in spherical stellar systems while breaking the mass-anisotropy degeneracy.
Derives filters for fourth-order aperture statistics, implements a numerical pipeline achieving 2% precision on Gaussian random fields, and forecasts only minimal extra cosmological constraining power when added to second- and third-order aperture statistics in a DES-Y3-like non-tomographic analysis
Discovery of Spearman correlation 0.8 between energy-dependent time lag and polarization degree in Swift J1727.8-1613, with theoretical arguments for additional mechanisms beyond inverse Comptonization.
3D MHD simulations of CCSN remnants from RSG and WR stars show faster shocks from photoionization and CSM expansion, plus coherent reflected shocks in WR cases, with weakly magnetized bubbles limiting PeV acceleration.
The analysis identifies ~300 pc and ~200 pc transition scales in PAH emission and ISM density PDFs in nearby galaxies by decomposing JWST mid-IR images into compact and diffuse components.
3D radiative-MHD simulations reveal that chromospheric heating rises with magnetic flux while coronal base temperature responds non-monotonically due to enhanced mass loading and radiative cooling.
Simulations demonstrate that gas-dust interactions produce radial offsets between micron and millimeter dust in gas-bearing debris disks, depending on gas mass, optical depth, and small-grain abundance.
Radiative feedback from disk-reprocessed soft photons produces limit-cycle oscillations whose frequency and spectra match observed type-C QPOs in black-hole X-ray binaries for suitable coronal parameters.
Abeona is confirmed as a faint ~30 arcmin bilateral radio SNR shell with synchrotron polarization, flux density 1.5 Jy, and a spatially coincident 5.7-sigma GeV gamma-ray source.
Strong blended Lyα absorbers cluster with Lyα emitting galaxies at z>3 within 300 kpc and 300 km/s, confirming they trace the circumgalactic medium interface.
At z=0.9, disk galaxies show a TFR slope of 3.82 and FR slope of 0.44 with moderate TFR and strong FR evolution from z=0, implying higher and less mass-dependent stellar-to-halo mass fractions f_M while f_j remains near 0.8.
citing papers explorer
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Finding the elusive RR Lyrae companions via speckle imaging
Speckle imaging of 81 RR Lyrae stars detects 10 likely bound companions at 20-220 AU separations, yielding a binary fraction estimate above 12 percent.
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The impact of envelope binding energies on the merger rate density of binary compact objects
New envelope binding energies derived from PARSEC stellar tracks alter compact binary merger rate densities by over an order of magnitude when used in population synthesis.
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A Point-Spread Function for the Extreme Ultraviolet High-Resolution Imager on board Solar Orbiter
The HRIEUV PSF at 174 Å redistributes 57% of light via diffraction (26%) and scattering (42%), and deconvolution with it boosts bright structure intensities by up to 40% while reducing dark areas by up to 85%.
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Multi-Dimensional MHD simulations of young Core-Collapse Supernova Remnants
3D MHD simulations of CCSN remnants from RSG and WR stars show faster shocks from photoionization and CSM expansion, plus coherent reflected shocks in WR cases, with weakly magnetized bubbles limiting PeV acceleration.
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Chromosphere of the quiet sun: II. Atmospheric response to small-scale magnetic flux emergence
3D radiative-MHD simulations reveal that chromospheric heating rises with magnetic flux while coronal base temperature responds non-monotonically due to enhanced mass loading and radiative cooling.
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Unraveling the Secrets of the lower Solar Atmosphere: One year of Operation of the Solar Ultraviolet Imaging Telescope (SUIT) on board Aditya-L1
SUIT on Aditya-L1 completed one year of UV solar imaging with calibration routines, software tools, and notable observations of the lower solar atmosphere presented.
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Characterizing six seismic solar analogs observed by Kepler, K2, and HERMES
Six seismic solar analogs have masses 0.91-1.04 solar masses, radii 0.95-1.08 solar radii, and ages 1.8-9.1 Gyr, with one star matching the Sun closely enough to be called a solar twin.