Léa M. Feuillet
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View article: The X-Ray Emission of NGC 5005: An Unobscured Low-luminosity Active Galactic Nucleus with a Weakly Accreting Broad-line Region
The X-Ray Emission of NGC 5005: An Unobscured Low-luminosity Active Galactic Nucleus with a Weakly Accreting Broad-line Region Open
We present deep Chandra X-ray observations of NGC 5005, a LINER-dominated galaxy previously reported to host a broad H α emission line. The diffuse soft X-ray emission (3 keV) is confined to the central ∼400 pc. Spatially resolved spectros…
View article: The X-ray Emission of NGC 5005: An Unobscured Low-Luminosity AGN with a Weakly Accreting Broad-Line Region
The X-ray Emission of NGC 5005: An Unobscured Low-Luminosity AGN with a Weakly Accreting Broad-Line Region Open
We present deep Chandra X-ray observations of NGC 5005, a LINER-dominated galaxy previously reported to host a broad H$α$ emission line. The diffuse soft X-ray emission ($<$3 keV) extends out to $\sim$800 pc, while harder emission ($>$3 ke…
View article: Core Revelations: The Star Formation and Active Galactic Nucleus Connection at the Heart of NGC 7469
Core Revelations: The Star Formation and Active Galactic Nucleus Connection at the Heart of NGC 7469 Open
We investigate the star formation–active galactic nucleus (AGN) connection in the Seyfert 1 NGC 7469 using James Webb Space Telescope mid-infrared spectroscopic integral field unit (IFU) data. We use the IFU data to generate maps of differ…
View article: <i>Hubble Space Telescope</i> observations of nearby type 1 quasars. I. Characterization of the extended [O <scp>iii</scp>] 5007 Å emission
<i>Hubble Space Telescope</i> observations of nearby type 1 quasars. I. Characterization of the extended [O <span>iii</span>] 5007 Å emission Open
We use the Hubble Space Telescope to analyse the extended [O iii] 5007 Å emission in seven bright radio-quiet type 1 quasars (QSO1s), focusing on the morphology and physical conditions of their extended Narrow-Line Regions (NLRs). We find …
View article: Hubble Space Telescope Observations of Nearby Type 1 Quasars. I. Characterisation of the Extended [O III] 5007Å Emission
Hubble Space Telescope Observations of Nearby Type 1 Quasars. I. Characterisation of the Extended [O III] 5007Å Emission Open
We use the Hubble Space Telescope to analyse the extended [O III] 5007A emission in seven bright radio-quiet type 1 quasars (QSO1s), focusing on the morphology and physical conditions of their extended Narrow-Line Regions (NLRs). We find N…
View article: Core Revelations: the Star Formation and AGN Connection at the Heart of NGC 7469
Core Revelations: the Star Formation and AGN Connection at the Heart of NGC 7469 Open
We investigate the star formation-AGN connection in the Seyfert 1 NGC 7469 using James Webb Space Telescope (JWST) mid-infrared spectroscopic integral field unit (IFU) data. We use the IFU data to generate maps of different emission lines …
View article: Resolving a Candidate Dual Active Galactic Nucleus with ∼100 pc Separation in MCG-03-34-64
Resolving a Candidate Dual Active Galactic Nucleus with ∼100 pc Separation in MCG-03-34-64 Open
We report the serendipitous multiwavelength discovery of a candidate dual black hole system with a separation of ∼100 pc, in the gas-rich luminous infrared galaxy MCG-03-34-64 ( z = 0.016). Hubble Space Telescope/Advanced Camera for Survey…
View article: Star Formation Rates in [Ne V] 3426 Å Selected Active Galactic Nuclei: Evidence for a Decrease along the Main Sequence?
Star Formation Rates in [Ne V] 3426 Å Selected Active Galactic Nuclei: Evidence for a Decrease along the Main Sequence? Open
Studying the behavior along the galaxy main sequence is key in furthering our understanding of the possible connection between active galactic nucleus (AGN) activity and star formation. We select a sample of 1215 AGN from the catalog of Sl…
View article: Star Formation Rates in [Ne V] 3426 Å Selected Active Galactic Nuclei: Evidence for a Decrease along the Main Sequence?
Star Formation Rates in [Ne V] 3426 Å Selected Active Galactic Nuclei: Evidence for a Decrease along the Main Sequence? Open
Studying the behavior along the galaxy main sequence is key in furthering our understanding of the possible connection between AGN activity and star formation. We select a sample of 1215 AGN from the catalog of SDSS galaxy properties from …
View article: Classifying Intermediate-redshift Galaxies in SDSS: Alternative Diagnostic Diagrams
Classifying Intermediate-redshift Galaxies in SDSS: Alternative Diagnostic Diagrams Open
We select a sample of 1437 active galactic nuclei (AGN) from the catalog of the Sloan Digital Sky Survey galaxy properties from the Portsmouth group by detection of the high-ionization [Ne v ] 3426 Å emission line. We compare the fluxes of…
View article: Classifying Intermediate Redshift Galaxies in SDSS: Alternative Diagnostic Diagrams
Classifying Intermediate Redshift Galaxies in SDSS: Alternative Diagnostic Diagrams Open
We select a sample of 1,437 active galactic nuclei (AGN) from the catalog of the Sloan Digital Sky Survey (SDSS) galaxy properties from the Portsmouth group by detection of the high-ionization [Ne V] 3426 Å emission line. We compare the fl…
View article: A comprehensive Applied Space Weather Research graduate program for professionals to meet academia and commercial needs for space weather expertise
A comprehensive Applied Space Weather Research graduate program for professionals to meet academia and commercial needs for space weather expertise Open
Space weather is the study of the changes in Earth’s space environment with solar activities that impact technical systems, such as communication, navigation, aviation, satellite command and control, and electric power. With th…