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Related papers: 2MASS Re-processing I: The Search for Faint Object…

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The Hard X-ray Modulation Telescope (HXMT) will perform an all-sky survey in hard X-ray band as well as deep imaging of a series of small sky regions. We expect various compact objects to be detected in these imaging observations. Point…

Instrumentation and Methods for Astrophysics · Physics 2015-11-11 Zhuoxi Huo , Yiming Li , Xiaobo Li , Jianfeng Zhou

Many deep wide-band wide-field radio interferometric surveys are being designed to accurately measure intensities, spectral indices and polarization properties of faint source populations. In this paper we compare various wideband imaging…

Instrumentation and Methods for Astrophysics · Physics 2016-10-26 Urvashi Rau , Sanjay Bhatnagar , Frazer N. Owen

We have developed a new data reduction technique for ISOCAM LW data and have applied it to the European Large Area ISO Survey (ELAIS) LW3 (15 micron) observations in the southern hemisphere (S1). This method, known as LARI technique and…

An efficient sky data reconstruction derives from a precise characterization of the observing instrument. Here we describe the reconstruction of performances of a single-pixel 4-band photometer installed at MITO (Millimeter and Infrared…

Astrophysics · Physics 2009-11-07 G. Savini , A. Orlando , E. S. Battistelli , M. De Petris , L. Lamagna , G. Luzzi , E. Palladino

Reconstructing sky models from dirty radio images for accurate source localization and flux estimation is crucial for studying galaxy evolution at high redshift, especially in deep fields using instruments like the Atacama Large Millimetre…

Highly polarized QSOs discovered in the Two-Micron All Sky Survey (2MASS) have been observed to determine the source(s) of optical polarization in this near-infrared color-selected sample. Broad emission lines are observed in the polarized…

Astrophysics · Physics 2009-11-07 Paul S. Smith , Gary D. Schmidt , Dean C. Hines , Craig B. Foltz

We introduce ProFound, a source finding and image analysis package. ProFound provides methods to detect sources in noisy images, generate segmentation maps identifying the pixels belonging to each source, and measure statistics like flux,…

Instrumentation and Methods for Astrophysics · Physics 2018-03-14 A. S. G. Robotham , L. J. M. Davies , S. P. Driver , S. Koushan , D. S. Taranu , S. Casura , J. Liske

In this article we consider the detection of compact sources in maps of the Cosmic Microwave Background radiation (CMB) following the philosophy behind the Mexican Hat Wavelet Family (MHWn) of linear filters. We present a new analytical…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 M. López-Caniego , P. Vielva

We present a careful analysis of the point source detection limit of the AKARI All-Sky Survey in the WIDE-S 90 $\mu$m band near the North Ecliptic Pole (NEP). Timeline Analysis is used to detect IRAS sources and then a conversion factor is…

The CO Mapping Array Project (COMAP) Pathfinder is performing line intensity mapping of CO emission to trace the distribution of unresolved galaxies at redshift $z \sim 3$. We present an improved version of the COMAP data processing…

The presence of undesired background areas associated with potential noise and unknown spectral characteristics degrades the performance of hyperspectral data processing. Masking out unwanted regions is key to addressing this issue.…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Elias Arbash , Andréa de Lima Ribeiro , Sam Thiele , Nina Gnann , Behnood Rasti , Margret Fuchs , Pedram Ghamisi , Richard Gloaguen

Next-generation particle accelerators demand advanced beam-diagnostic capabilities to ensure high performance, operational reliability, and sustainable machine operation. Increasing beam intensities and stored energies make the precise…

Accelerator Physics · Physics 2026-03-10 Francis René Osswald , Mohammed Chahbaoui , Xinyi Liang

We have analyzed the efficiency in source detection and flux density estimation of blind and non-blind detection techniques exploiting the MHW2 filter applied to the Wilkinson Microwave Anisotropy Probe (WMAP) 5-year maps. A comparison with…

Astrophysics · Physics 2009-11-13 M. Massardi , M. López-Caniego , J. González-Nuevo , D. Herranz , G. De Zotti , J. L. Sanz

We present an implementation of a blind source separation algorithm to remove foregrounds off millimeter surveys made by single-channel instruments. In order to make possible such a decomposition over single-wavelength data: we generate…

We check the performance of the FRODOSpec integral-field spectrograph for observations of faint sources in crowded fields. Although the standard processing pipeline L2 yields too noisy fibre spectra, we present a new processing software…

Instrumentation and Methods for Astrophysics · Physics 2014-05-09 Vyacheslav N. Shalyapin , Luis J. Goicoechea

We describe the processing of the PHANGS-ALMA survey and present the PHANGS-ALMA pipeline, a public software package that processes calibrated interferometric and total power data into science-ready data products. PHANGS-ALMA is a large,…

Star Formation Across Cosmic Time (SFACT) is a new narrowband survey designed to detect faint emission-line galaxies and QSOs over a broad range of redshifts. Here we present the first list of SFACT candidates from our pilot-study fields.…

Astrophysics of Galaxies · Physics 2023-08-03 Jennifer Sieben , David J. Carr , John J. Salzer , Alec S. Hirschauer

Phased microphone arrays are used widely in the applications for acoustic source localization. Deconvolution approaches such as DAMAS successfully overcome the spatial resolution limit of the conventional delay-and-sum (DAS) beamforming…

Sound · Computer Science 2017-02-14 Wei Ma , Xun Liu

The near future of astrophysics involves many large solid-angle, multi-epoch, multi-band imaging surveys. These surveys will, at their faint limits, have data on large numbers of sources that are too faint to be detected at any individual…

Astrophysics · Physics 2014-11-18 Dustin Lang , David W. Hogg , Sebastian Jester , Hans-Walter Rix

We present the fourth data release of JADES, the JWST Advanced Deep Extragalactic Survey, providing deep spectroscopic observations in the two GOODS fields. A companion paper presents the target selection, spectroscopic redshifts and…