Spectral energy distribution
View article: Numerically Solving the Particle Kinetic Equation to Study the Effect of Non-Thermal Cooling on1 Particle Spectra in Relativistic Jets
Numerically Solving the Particle Kinetic Equation to Study the Effect of Non-Thermal Cooling on1 Particle Spectra in Relativistic Jets Open
Blazars exhibit broadband non-thermal emission characterized by a double-hump Spectral Energy Distribution¹⁷(SED) attributed to Synchrotron and Synchrotron Self-Compton (SSC) processes (P. Padovani et al. 2017; G.18Risaliti & M. Elvis 2004…
View article: Numerically Solving the Particle Kinetic Equation to Study the Effect of Non-Thermal Cooling on1 Particle Spectra in Relativistic Jets
Numerically Solving the Particle Kinetic Equation to Study the Effect of Non-Thermal Cooling on1 Particle Spectra in Relativistic Jets Open
Blazars exhibit broadband non-thermal emission characterized by a double-hump Spectral Energy Distribution¹⁷(SED) attributed to Synchrotron and Synchrotron Self-Compton (SSC) processes (P. Padovani et al. 2017; G.18Risaliti & M. Elvis 2004…
View article: Online Data: Black-hole mass estimation through accretion disk spectral fitting for high-redshift blazars
Online Data: Black-hole mass estimation through accretion disk spectral fitting for high-redshift blazars Open
# High-z Blazar SED Fitting Results This package contains archival data, MCMC fitting results, and Python scripts for modeling the spectral energy distributions (SEDs) of high-redshift blazars. It is designed to allow reproduction of the a…
View article: TEORIA DO BURACO NEGRO EXTERNO O Teste de Estresse dos Raios Gama de Tomonori Totani.
TEORIA DO BURACO NEGRO EXTERNO O Teste de Estresse dos Raios Gama de Tomonori Totani. Open
A TBE ToT foi submetida a um teste de estresse ao confrontar a descoberta de Tomonori Totani et al. (2025) de um excesso de raios gama de $20 \text{ GeV}$ no centro da Via Láctea, que é a principal evidência para a aniquilação de Matéria E…
View article: TEORIA DO BURACO NEGRO EXTERNO O Teste de Estresse dos Raios Gama de Tomonori Totani.
TEORIA DO BURACO NEGRO EXTERNO O Teste de Estresse dos Raios Gama de Tomonori Totani. Open
A TBE ToT foi submetida a um teste de estresse ao confrontar a descoberta de Tomonori Totani et al. (2025) de um excesso de raios gama de $20 \text{ GeV}$ no centro da Via Láctea, que é a principal evidência para a aniquilação de Matéria E…
View article: Variation of Microphysical Parameters in Reverse-shock Scenario
Variation of Microphysical Parameters in Reverse-shock Scenario Open
Gamma-ray bursts (GRBs), among the most compelling astrophysical phenomena, are potential candidates for exploring the evolution of energy distribution among magnetic fields and particles through multiwavelength observations. The fraction …
View article: Variation of Microphysical Parameters in Reverse-shock Scenario
Variation of Microphysical Parameters in Reverse-shock Scenario Open
Gamma-ray bursts (GRBs), among the most compelling astrophysical phenomena, are potential candidates for exploring the evolution of energy distribution among magnetic fields and particles through multiwavelength observations. The fraction …
View article: Stellar Mass Assembly History of Massive Quiescent Galaxies since <i>z</i> ∼ 4: Insights from Spatially Resolved Spectral Energy Distribution Fitting with JWST Data
Stellar Mass Assembly History of Massive Quiescent Galaxies since <i>z</i> ∼ 4: Insights from Spatially Resolved Spectral Energy Distribution Fitting with JWST Data Open
Massive quiescent galaxies at high redshift show significantly more compact morphology than their local counterparts. To examine their internal structure across a wide redshift range and investigate potential redshift dependence, we perfor…
View article: Compton-induced $γ$-ray Cascade Emissions in Radio Galaxy NGC 1275
Compton-induced $γ$-ray Cascade Emissions in Radio Galaxy NGC 1275 Open
Among active galactic nuclei (AGNi), blazars are the brightest emitters of high-energy (HE, $E \geq 100$ MeV) to very-high-energy (VHE, $E \geq 100$ GeV) $γ$-rays from their jets. Radio galaxies, being the misaligned parent population of t…
View article: A Super-Eddington, Lensing-Magnified Quasar at $z=5.07$ observed with JWST
A Super-Eddington, Lensing-Magnified Quasar at $z=5.07$ observed with JWST Open
We present JWST/NIRCam F070W and F480M imaging for a quasar at $z = 5.07$, J0025-0145, which is magnified by a foreground lensing galaxy. Existing Hubble Space Telescope (HST) imaging does not have sufficient spatial resolution to determin…
View article: Testing Photometric Techniques for Measuring the Rest-frame UV Spectral Slope against JWST PRISM Spectroscopy
Testing Photometric Techniques for Measuring the Rest-frame UV Spectral Slope against JWST PRISM Spectroscopy Open
We present a sample of 53 galaxy spectra at z SPEC ∼ 5–12 from the JWST CEERS and RUBIES surveys, combining NIRSpec PRISM spectroscopy with NIRCam photometry. We aim to use these data to establish best practices for measuring the UV spectr…
View article: J-PAS: A value-added catalogue of optical line intensities for nebular emission galaxies (JOLINES)
J-PAS: A value-added catalogue of optical line intensities for nebular emission galaxies (JOLINES) Open
We present the value-added catalogue JOLINES (J-PAS optical line intensities for nebular emission galaxies), which provides emission-line fluxes in galaxies at from the spectrophotometric catalogues of miniJPAS, J-NEP and the J-PAS early d…
View article: SQuIGG <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mover> <mml:mrow> <mml:mi>L</mml:mi> </mml:mrow> <mml:mrow> <mml:mo>→</mml:mo> </mml:mrow> </mml:mover> </mml:math> E: Buried Star Formation Cannot Explain the Rapidly Fading CO(2–1) Luminosity in Massive, <i>z</i> ∼ 0.7 Post-starburst Galaxies
SQuIGG E: Buried Star Formation Cannot Explain the Rapidly Fading CO(2–1) Luminosity in Massive, <i>z</i> ∼ 0.7 Post-starburst Galaxies Open
Observational and theoretical studies have long held that rapid gas consumption in starbursts is responsible for the formation of the most massive quiescent galaxies at high redshift. However, studies of recently quenched “post-starburst” …
View article: J-PAS: A value-added catalogue of optical line intensities for nebular emission galaxies (JOLINES)
J-PAS: A value-added catalogue of optical line intensities for nebular emission galaxies (JOLINES) Open
We present the value-added catalogue JOLINES (J-PAS optical line intensities for nebular emission galaxies), which provides emission-line fluxes in galaxies at from the spectrophotometric catalogues of miniJPAS, J-NEP and the J-PAS early d…
View article: Measuring Dust Masses of Protoplanetary Disks in Serpens and L1641/L1647 with ALMA
Measuring Dust Masses of Protoplanetary Disks in Serpens and L1641/L1647 with ALMA Open
Protoplanetary disks are an essential component of the planet-formation process. The amount of dust and gas in the disk constrains the number and size of planets that can form in a system. We analyze 178 T-Tauri stars, 18 in Serpens and 16…
View article: SED Fitting for Algol Binaries with Some Observations Taken during the Eclipses
SED Fitting for Algol Binaries with Some Observations Taken during the Eclipses Open
I present a study of two Algol type systems, which have anomalous Spectral Energy Distribution fitting. It appears that these anomaly is simply caused by several observations taken during the eclipse, when only the cool component of the bi…
View article: Mapping the Galaxy Color-Star Formation Rate Relation with Manifold Learning and Infrared Image Stacking
Mapping the Galaxy Color-Star Formation Rate Relation with Manifold Learning and Infrared Image Stacking Open
Modern surveys present us with billions of faint galaxies for which we only have broadband images in $\sim$6-8 optical-to-near-infrared (NIR) filters. Galaxy star formation rates (SFRs) are difficult to estimate accurately without spectros…
View article: BASS. LIV. Physical Properties of AGN-hosting Galaxy Mergers from Multiwavelength SED Fitting
BASS. LIV. Physical Properties of AGN-hosting Galaxy Mergers from Multiwavelength SED Fitting Open
Galaxy mergers are believed to play an important role in triggering rapid supermassive black hole (SMBH) growth. As merging nuclei approach each other, the physical properties of the participating galaxies and the associated SMBH growth ar…
View article: Near-Sun Characteristics of a CME Inferred from Observations in the 5303 Å Coronal Emission Line
Near-Sun Characteristics of a CME Inferred from Observations in the 5303 Å Coronal Emission Line Open
Using observations of the solar corona in the 5303 Å (Fe XIV ) emission line with the Visible Emission Line Coronagraph (VELC) on board Aditya-L1, we estimated the electron density ( N e ), thermal energy ( E CME ), and mass ( M CME ) of a…
View article: XRISM view of a stellar flare: High-resolution Fe K spectra of HR 1099, an RS CVn-type star
XRISM view of a stellar flare: High-resolution Fe K spectra of HR 1099, an RS CVn-type star Open
A high-resolution X-ray spectroscopic observation was made of the RS CVn-type binary star HR 1099 using the Resolve instrument onboard XRISM for its calibration purposes. During the $\sim$400 ks telescope time covering 1.5 binary orbit, a …
View article: A New FU Orionis Accretion Outburst in the W5 H <scp>ii</scp> Region
A New FU Orionis Accretion Outburst in the W5 H <span>ii</span> Region Open
We announce a recently detected outburst that is currently only a few months old, and probably of FU Orionis type. The progenitor to the outburst was an emission-line, flat-spectrum spectral energy distribution young stellar object located…
View article: Measuring Dust Masses of Protoplanetary Disks in Serpens and L1641/L1647 with ALMA
Measuring Dust Masses of Protoplanetary Disks in Serpens and L1641/L1647 with ALMA Open
Protoplanetary disks are an essential component of the planet-formation process. The amount of dust and gas in the disk constrains the number and size of planets that can form in a system. We analyze 178 T-Tauri stars, 18 in Serpens and 16…
View article: Mapping the Galaxy Color-Star Formation Rate Relation with Manifold Learning and Infrared Image Stacking
Mapping the Galaxy Color-Star Formation Rate Relation with Manifold Learning and Infrared Image Stacking Open
Modern surveys present us with billions of faint galaxies for which we only have broadband images in $\sim$6-8 optical-to-near-infrared (NIR) filters. Galaxy star formation rates (SFRs) are difficult to estimate accurately without spectros…
View article: Tracing AGN-Galaxy Co-Evolution with UV Line-Selected Obscured AGN
Tracing AGN-Galaxy Co-Evolution with UV Line-Selected Obscured AGN Open
Understanding black hole-galaxy co-evolution and the role of AGN feedback requires complete AGN samples, including heavily obscured systems. In this work, we present the first UV line-selected ([Nev]3426 and CIV1549) sample of obscured AGN…
View article: Constraining properties of dust formed in Wolf-Rayet binary WR 112 using mid-infrared and millimeter observations
Constraining properties of dust formed in Wolf-Rayet binary WR 112 using mid-infrared and millimeter observations Open
Binaries that host a carbon-rich Wolf-Rayet (WC) star and an OB-type companion can be copious dust producers. Yet the properties of dust, particularly the grain size distribution, in these systems remain uncertain. We present Band 6 observ…
View article: KIC 5623923: A Faint Eclipsing Binary Consisting of $δ$ Scuti pulsations
KIC 5623923: A Faint Eclipsing Binary Consisting of $δ$ Scuti pulsations Open
In this paper, we present a detailed analysis of the light variation of KIC 5623923 using high-precision time-series data from the $Kepler$ mission. The analysis reveals this target is an eclipsing binary system with $δ$ Scuti type pulsati…
View article: Dwarf Active Galactic Nuclei from Variability for the Origins of Seeds (DAVOS): Properties of Variability-selected AGN in the Dark Energy Survey Deep Fields
Dwarf Active Galactic Nuclei from Variability for the Origins of Seeds (DAVOS): Properties of Variability-selected AGN in the Dark Energy Survey Deep Fields Open
We study the black hole mass–host galaxy stellar mass relation, M BH – M * , for a sample of 706 z ≲ 1.5 and i ≲ 24 optically variable active galactic nuclei (AGNs) in three Dark Energy Survey (DES) Deep Fields: C3, X3, E2, which partially…
View article: SE3D: Building a radiative transfer emulator to fit panchromatic resolved galaxy observations with 3D models of dust and stars
SE3D: Building a radiative transfer emulator to fit panchromatic resolved galaxy observations with 3D models of dust and stars Open
We present a framework for analysing panchromatic and spatially resolved galaxy observations, dubbed SE3D. SE3D simultaneously and self-consistently models a galaxy's spectral energy distribution and its spectral distributions of global st…
View article: On the Spatial Distribution of Luminous Blue Variables, <i>B</i> [ <i>e</i> ] Supergiants, and Wolf–Rayet Stars in the Large Magellanic Cloud
On the Spatial Distribution of Luminous Blue Variables, <i>B</i> [ <i>e</i> ] Supergiants, and Wolf–Rayet Stars in the Large Magellanic Cloud Open
We examine the spatial distributions of luminous blue variables (LBVs), B [ e ] supergiants, and Wolf–Rayet stars (WR) stars in the Large Magellanic Cloud (LMC) to clarify their relative ages, evolutionary states, and relationships. This s…
View article: Constraining properties of dust formed in Wolf-Rayet binary WR 112 using mid-infrared and millimeter observations
Constraining properties of dust formed in Wolf-Rayet binary WR 112 using mid-infrared and millimeter observations Open
Binaries that host a carbon-rich Wolf-Rayet (WC) star and an OB-type companion can be copious dust producers. Yet the properties of dust, particularly the grain size distribution, in these systems remain uncertain. We present Band 6 observ…