Risultati della ricerca - Daniel Stern
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1
Infrared-selected Active Galactic Nuclei in the Kepler Fields
Pubblicazione 2025-01-01TestoWe utilized the R. Edelson & M. Malkan and D. Stern et al. selection techniques and other methods to identify active galactic nuclei (AGN) candidates that were monitored during the Kepler prime and K2 missions. Subsequent to those observations, we obtained 125 long-slit optical spectra with the...
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2
Discovery of Faint Nebulosity around a Z Camelopardalis–type Cataclysmic Variable in Antlia: Nova Shell or Ancient Planetary Nebula?
Pubblicazione 2025-01-01TestoWe report our discovery of a faint nebula surrounding a previously little-studied 15th mag variable star, ASASSN-19ds, in the Southern Hemisphere constellation Antlia. Spectra verify that the star is a cataclysmic variable (CV). Using new and archival photometry, we confirm that ASASSN-19ds is an ec...
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Gas-poor Hosts and Gas-rich Companions of z ≈ 3.5 Radio Active Galactic Nuclei: ALMA Insights into Jet Triggering and Feedback
Pubblicazione 2025-01-01TestoCold gaseous systems play important roles in galaxy evolution by possibly providing fuel to ignite active galactic nuclei (AGN) activity and star formation. In this work, we analyze [C ii ]158 μ m and continuum observations from the Atacama Large Millimeter/submillimeter Array for a sample of four r...
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Highly Sensitive Suspension Immunoassay for Multiplex Detection, Differentiation, and Quantification of Eight <i>Staphylococcus aureus</i> Enterotoxins (SEA to SEI)
Pubblicazione 2025-05-01TestoStaphylococcal enterotoxins (SEs) are major contributors to foodborne intoxications. Reliable detection methods for SEs are essential to maintain food safety and protect public health. Since the heat-stable toxins also exert their toxic effect in the absence of the bacterium, reliance on DNA detecti...
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XMM-Newton Conclusively Identifies an Active Galactic Nucleus in a Green Pea Galaxy
Pubblicazione 2025-01-01TestoGreen Pea galaxies are a class of compact, low-mass, low-metallicity star-forming galaxies in the relatively local Universe. They are believed to be analogs of high-redshift galaxies that reionized the Universe, and, indeed, the James Webb Space Telescope (JWST) is now uncovering such populations at...
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