Results 41 to 50 of about 90,398 (275)

Mid-infrared Variability in Nearby Galaxies from the MaNGA Sample

open access: yesThe Astrophysical Journal
We use mid-infrared variability in galaxies to search for active galactic nuclei (AGN) in the local universe. We use a sample of 10,220 galaxies from the Mapping Nearby Galaxies at Apache Point Observatory survey, part of the Sloan Digital Sky Survey ...
Aashay Pai   +2 more
doaj   +1 more source

ChAInGeS: The Chandra Arp Interacting Galaxies Survey

open access: yes, 2011
We have conducted a statistical analysis of the ultra-luminous X-ray point sources (ULXs; L(X) >= 10^39 erg/s) in a sample of galaxies selected from the Arp Atlas of Peculiar Galaxies.
Abazajian   +74 more
core   +1 more source

Programming Next‐Generation Synthetic Biosensors by Genetic Circuit Design

open access: yesAdvanced Science, EarlyView.
Synthetic biology enables genetic circuit‐based biosensing to detect diverse targets, process signals, and transduce them into readable outputs or intracellular regulatory activities. However, field deployment and real‐world application of such synthetic biosensors face considerable challenges in sensitivity, specificity, speed, stability, and ...
Yuanli Gao   +4 more
wiley   +1 more source

Estimating Molecular Gas Content in Galaxies from Polycyclic Aromatic Hydrocarbon Emission

open access: yesThe Astrophysical Journal, 2023
Emission from polycyclic aromatic hydrocarbons (PAHs), a commonly used indicator of star formation activity in galaxies, also has the potential to serve as an effective empirical tracer of molecular gas.
Lulu Zhang, Luis C. Ho
doaj   +1 more source

Herschel Far-Infrared and Sub-millimeter Photometry for the KINGFISH Sample of Nearby Galaxies [PDF]

open access: yes, 2011
New far-infrared and sub-millimeter photometry from the Herschel Space Observatory is presented for 61 nearby galaxies from the Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel (KINGFISH) sample.
A. D. Bolatto   +66 more
core   +4 more sources

Mid‐Infrared Selection of Active Galaxies [PDF]

open access: yesThe Astrophysical Journal, 2005
13 pages, 3 figures; submitted to the Astrophysical Journal ...
Stern, Daniel   +14 more
openaire   +2 more sources

Machine Learning‐Augmented Loop‐Mediated Isothermal Amplification‐Enabled Point‐of‐Care for Mpox‐Specific Detection

open access: yesAdvanced Intelligent Systems, EarlyView.
A low‐cost, portable point‐of‐care platform for rapid Mpox detection using loop‐mediated isothermal amplification is reported. The device integrates fluorescence readout and mobile monitoring. A machine‐learning model analyzes temperature data and correlates thermal changes with DNA concentration, enabling sensitive and reliable molecular diagnosis in ...
Nazente Atceken   +4 more
wiley   +1 more source

The S4G-WISE View of Global Star Formation in the Nearby Universe

open access: yesThe Astrophysical Journal
In this work, we present source-tailored Wide-field Infrared Survey Explorer (WISE) mid-infrared photometry (at 3.4, 4.6, 12, and 23 μ m) of 2812 galaxies in the extended Spitzer Survey of Stellar Structure in Galaxies sample, and characterize the mid ...
M. E. Cluver   +11 more
doaj   +1 more source

FIR/Submm Spectroscopy with Herschel: First Results from the VNGS and H-Atlas Surveys

open access: yesOpen Astronomy, 2011
The FIR/submm window is one of the least-studied regions of the electromagnetic spectrum, yet this wavelength range is absolutely crucial for understanding the physical processes and properties of the ISM in galaxies.
Baes Maarten   +6 more
doaj   +1 more source

Exploring Infrared Properties of Giant Low Surface Brightness Galaxies [PDF]

open access: yes, 2007
Abridged: We present analysis of Spitzer Space Telescope observations of the three low surface brightness (LSB) optical giant galaxies Malin 1, UGC 6614 and UGC 9024.
Buckalew, Brent   +4 more
core   +2 more sources

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