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The Mid-Infrared Instrument (MIRI) aboard the James Webb Space Telescope (JWST) provides the observatory with a huge advance in mid-infrared imaging and spectroscopy covering the wavelength range of 5 to 28 microns. This paper describes the…

Photometric redshift estimation is a key requirement for modern large-area surveys, where spectroscopic measurements are observationally prohibitive. Seyfert II galaxies provide a particularly challenging test case due to the combined…

Astrophysics of Galaxies · Physics 2026-04-23 Uzay Aydin

This paper is concerned with the channel estimation problem in Millimeter wave (mmWave) wireless systems with large antenna arrays. By exploiting the inherent sparse nature of the mmWave channel, we first propose a fast channel estimation…

Information Theory · Computer Science 2016-11-17 Matthew Kokshoorn , He Chen , Peng Wang , Yonghui Li , Branka Vucetic

Mid-infrared properties are reported of the west hot spot of the radio galaxy Pictor A with the Wide-field Infrared Survey Explorer (WISE). The mid-infrared counterpart to the hot spot, WISE J051926.26-454554.1, is listed in the AllWISE…

High Energy Astrophysical Phenomena · Physics 2017-12-13 Naoki Isobe , Shoko Koyama , Motoki Kino , Takehiko Wada , Takao Nakagawa , Hideo Matsuhara , Kotaro Niinuma , Makoto Tashiro

The SIRTF Wide-area Infrared Extragalactic (SWIRE) survey is a "Legacy Program" using 851 hours of SIRTF observing time to conduct a set of large-area (67 sq. deg. split into 7 fields) high Galactic latitude imaging surveys, achieving…

Astrophysics · Physics 2009-11-07 Alberto Franceschini , Carol Lonsdale , the SWIRE Co-Investigator Team

Due to an exponential increase in the number of cyber-attacks, the need for improved Intrusion Detection Systems (IDS) is apparent than ever. In this regard, Machine Learning (ML) techniques are playing a pivotal role in the early…

Cryptography and Security · Computer Science 2021-05-31 Kathryn-Ann Tait , Jan Sher Khan , Fehaid Alqahtani , Awais Aziz Shah , Fadia Ali Khan , Mujeeb Ur Rehman , Wadii Boulila , Jawad Ahmad

The Infrared Spectrograph (IRS) is one of three science instruments on the Spitzer Space Telescope. The IRS comprises four separate spectrograph modules covering the wavelength range from 5.3 to 38micron with spectral resolutions, R \~90…

Astrophysics · Physics 2011-05-05 J. R. Houck , the Spitzer/IRS team

We present an estimate of the performance that will be achieved during on orbit operations of the JWST Mid Infrared Instrument, MIRI. The efficiency of the main imager and spectrometer systems in detecting photons from an astronomical…

Instrumentation and Methods for Astrophysics · Physics 2015-08-19 Alistair Glasse , G. H. Rieke , E. Bauwens , Macarena Garcıa-Marın , M. E. Ressler , Steffen Rost , T. V. Tikkanen , B. Vandenbussche , G. S. Wright

We present full-sky coadded maps created by uniformly combining the first five years of Wide-field Infrared Survey Explorer (WISE) and NEOWISE imaging at 3.4 microns (W1) and 4.6 microns (W2). By incorporating both pre-hibernation WISE…

Instrumentation and Methods for Astrophysics · Physics 2020-01-08 A. M. Meisner , D. Lang , E. F. Schlafly , D. J. Schlegel

Clouds and snow have similar spectral features in the visible and near-infrared (VNIR) range and are thus difficult to distinguish from each other in high resolution VNIR images. We address this issue by introducing a shortwave-infrared…

Image and Video Processing · Electrical Eng. & Systems 2022-01-10 Debvrat Varshney , Claudio Persello , Prasun Kumar Gupta , Bhaskar Ramachandra Nikam

In near-infrared bands, co-adding and tiling of astronomical imaging datasets require a sufficiently high calibration quality (flat fielding, background subtraction). Here we present a complete workflow for obtaining imaging mosaics with…

Instrumentation and Methods for Astrophysics · Physics 2021-12-06 Kirill Grishin , Igor Chilingarian

For decades, the determination of an objects location has been implemented utilizing different technologies. Despite GPS (Global Positioning System) provides a scalable efficient and cost effective location services however the satellite…

Cryptography and Security · Computer Science 2022-10-04 Ali Abdullah S. AlQahtani , Nazim Choudhury

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Chris P. Pearson , Sophia A. Khan

The James Webb Space Telescope (JWST) is revolutionizing our view of the Universe through unprecedented sensitivity and resolution in the infrared, with some of the largest gains realized at its longest wavelengths. We present the…

We present the first results of our dedicated programme of automatised classification of galaxies, stars and quasars in the mid-infrared all-sky data from the WISE survey. We employ the Support Vector Machines (SVM) algorithm, which defines…

Astrophysics of Galaxies · Physics 2015-12-14 Agnieszka Kurcz , Magdalena Krupa , Maciej Bilicki , Aleksandra Solarz , Agnieszka Pollo , Katarzyna Małek

We describe a case study to use the Montage image mosaic engine to create maps of the ALLWISE image data set in the Hierarchical Progressive Survey (HiPS) sky-tesselation scheme. Our approach demonstrates that Montage reveals the science…

Instrumentation and Methods for Astrophysics · Physics 2020-01-30 G. Bruce Berriman , John C. Good , Vandana Desai , Steven L. Groom

We introduce a probabilistic technique for full-waveform inversion, employing variational inference and conditional normalizing flows to quantify uncertainty in migration-velocity models and its impact on imaging. Our approach integrates…

Geophysics · Physics 2024-04-16 Ziyi Yin , Rafael Orozco , Mathias Louboutin , Felix J. Herrmann

Masked Image Modeling (MIM) is a self-supervised learning technique that involves masking portions of an image, such as pixels, patches, or latent representations, and training models to predict the missing information using the visible…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Shabnam Choudhury , Akhil Vasim , Michael Schmitt , Biplab Banerjee

The mid-infrared is an optimal window to trace stellar mass in nearby galaxies and the 3.6$\mu m$ IRAC band has been exploited to this effect, but such mass estimates can be biased by dust emission. We present our pipeline to reveal the old…

Modern time-domain surveys continuously monitor large swaths of the sky to look for astronomical variability. Astrophysical discovery in such data sets is complicated by the fact that detections of real transient and variable sources are…

Instrumentation and Methods for Astrophysics · Physics 2015-06-11 Henrik Brink , Joseph W. Richards , Dovi Poznanski , Joshua S. Bloom , John Rice , Sahand Negahban , Martin Wainwright