Results 81 to 90 of about 1,265,321 (271)

A relation of the PAH 3.3 um feature with star-forming activity for galaxies with a wide range of infrared luminosity

open access: yes, 2013
For star-forming galaxies, we investigate a global relation between polycyclic aromatic hydrocarbon (PAH) emission luminosity at 3.3 um, L_PAH3.3, and infrared (8-1000 um) luminosity, L_IR, to understand how the PAH 3.3 um feature relates to the star ...
Im, Myungshin   +6 more
core   +1 more source

Spatial Dynamics and Lifespan of Adult Cicadas After Fire and Logging: A Radiotracking Study

open access: yesIntegrative Zoology, EarlyView.
This study investigates the effects of wildfire and post‐fire salvage logging on the survival, spatial behavior, and habitat selection of Lyristes plebejus cicadas in Mediterranean pine forests. A total of 63 cicadas were captured, tagged with radio transmitters, and released in three disturbance contexts: burnt‐logged, burnt‐unlogged, and unburnt ...
Carles Tobella   +4 more
wiley   +1 more source

GOODS-HERSCHEL AND CANDELS: THE MORPHOLOGIES OF ULTRALUMINOUS INFRARED GALAXIES AT z ∼ 2 [PDF]

open access: yes, 2011
Using deep 100 and 160 μm observations in GOODS-South from GOODS-Herschel, combined with high-resolution HST/WFC3 near-infrared imaging from CANDELS, we present the first detailed morphological analysis of a complete, far-infrared (FIR) selected sample ...
J. Kartaltepe   +42 more
semanticscholar   +1 more source

Prediction of Star Formation Rates Using an Artificial Neural Network

open access: yesThe Astrophysical Journal
In this study we develop an artificial neural network to estimate the infrared (IR) luminosity and star formation rates (SFR) of galaxies. Our network is trained using “true” IR luminosity values derived from modeling the IR spectral energy distributions
Ashraf Ayubinia   +4 more
doaj   +1 more source

Submillimetre surveys: The prospects for Herschel [PDF]

open access: yes, 2009
Using the observed submillimetre source counts, from 250-1200 microns (including the most recent 250, 350 and 500 micron counts from BLAST), we present a model capable of reproducing these results, which is used as a basis to make predictions for ...
Balland   +46 more
core   +1 more source

The fall of the Haag (LL4‐6) chondrite breccia—Just 8 years after the nearby fall Stubenberg (LL6)

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract On October 24, 2024, an impressive fireball was visible over Austria. After the possible strewn field was calculated, the first sample of the Haag meteorite, with a mass of 8.76 g, was discovered on November 2, 2024, 8 days after the fireball event. Four more samples were found afterward putting the total sample mass at about 151 g.
Addi Bischoff   +25 more
wiley   +1 more source

Star-formation laws in luminous infrared galaxies. New observational constraints on models [PDF]

open access: yes, 2011
The observational study of star formation relations in gala xies is central to unraveling the related physical processe s that are at work on both local and global scales.
S. García-Burillo   +12 more
semanticscholar   +1 more source

Mid-infrared Ensemble Variability of Broad-line and Narrow-line Seyfert 1 Galaxies

open access: yesThe Astrophysical Journal
We utilized multiepoch archival data from the Wide-field Infrared Survey Explorer to compare the variability at 3.4 μ m (W1 band) and 4.6 μ m (W2 band) of broad-line Seyfert 1 (BLSy1) galaxies and narrow-line Seyfert 1 (NLSy1) galaxies by employing the ...
Zhipeng Hu, Lisheng Mao
doaj   +1 more source

Stellar population analysis on local infrared-selected galaxies

open access: yes, 2009
To study the stellar population of local infrared galaxies, which contain star-forming galaxies, composite galaxies, LINERs, and Seyfert 2s. We also want to find whether infrared luminosity and spectral class have any effects on their stellar populations.
Adelman-McCarthy   +91 more
core   +1 more source

The Origin of the 24-micron Excess in Red Galaxies [PDF]

open access: yes, 2008
Observations with the Spitzer Space Telescope have revealed a population of red-sequence galaxies with a significant excess in their 24-micron emission compared to what is expected from an old stellar population.
Alam   +51 more
core   +2 more sources

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