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We have developed a method for the linear reconstruction of an image from undersampled, dithered data, which has been used to create the distributed, combined Hubble Deep Field images -- the deepest optical images yet taken of the universe.…

Astrophysics · Physics 2015-06-24 Andrew Fruchter , Richard Hook

The Hubble Space Telescope has obtained some of its well-deserved impact by producing stunning three-color (RGB) pictures from three-band imaging data. Here we produce a new RGB representation of the $I$, $V$, and $B$ bandpass images of the…

Astrophysics · Physics 2007-05-23 Nicholas Wherry , Michael R. Blanton , David W. Hogg

This paper proposes a realistic image generation method for visualization in endoscopic simulation systems. Endoscopic diagnosis and treatment are performed in many hospitals. To reduce complications related to endoscope insertions,…

Image and Video Processing · Electrical Eng. & Systems 2022-01-14 Masahiro Oda , Kiyohito Tanaka , Hirotsugu Takabatake , Masaki Mori , Hiroshi Natori , Kensaku Mori

We have developed a general data reduction technique for ISOCAM data coming from various deep surveys of faint galaxies. In order to reach the fundamental limits of the camera (due to the background photon noise and the readout noise), we…

We introduce GalaxyGenius, a Python package designed to produce synthetic galaxy images tailored to different telescopes based on hydrodynamical simulations. Its implementation will support and advance research on galaxies in the era of…

Instrumentation and Methods for Astrophysics · Physics 2025-08-13 Xingchen Zhou , Hang Yang , Nan Li , Qi Xiong , Furen Deng , Xian-Min Meng , Renhao Ye , Shiyin Shen , Peng Wei , Qifan Cui , Zizhao He , Ayodeji Ibitoye , Chengliang Wei , Yuedong Fang

Increasingly there is a need to develop astronomical visualisation and manipulations tools which allow viewers to interact with displayed data directly, in real time and across a range of platforms. In addition, increases in dynamic range…

Instrumentation and Methods for Astrophysics · Physics 2016-01-05 P. Mohan , C. Hawkins , R. Klapaukh , M. Johnston-Hollitt

We present the deepest optical images of the COSMOS field based on a joint dataset taken with Hyper Suprime-Cam (HSC) by the HSC Subaru Strategic Program (SSP) team and the University of Hawaii (UH). The COSMOS field is one of the key…

We investigate the high-redshift evolution of the restframe UV-luminosity function (LF) of galaxies via hydrodynamical cosmological simulations, coupled with an emulated observational astronomy pipeline that provides a direct comparison…

Astrophysics of Galaxies · Physics 2015-10-14 Robert J. Morgan , Rogier A. Windhorst , Evan Scannapieco , Robert J. Thacker

We present photometry and derived redshifts from up to eleven bandpasses for 9927 galaxies in the Hubble Ultra Deep field (UDF), covering an observed wavelength range from the near-ultraviolet (NUV) to the near-infrared (NIR) with Hubble…

This paper introduces EGG, the Empirical Galaxy Generator, a tool designed within the ASTRODEEP collaboration to generate mock galaxy catalogs for deep fields with realistic fluxes and simple morphologies. The simulation procedure is based…

Instrumentation and Methods for Astrophysics · Physics 2017-06-21 C. Schreiber , D. Elbaz , M. Pannella , E. Merlin , M. Castellano , A. Fontana , N. Bourne , K. Boutsia , F. Cullen , J. Dunlop , H. C. Ferguson , M. J. Michalowski , K. Okumura , P. Santini , X. W. Shu , T. Wang , C. White

Large photometric surveys will image billions of galaxies, but we currently lack quick, reliable automated ways to infer their physical properties like morphology, stellar mass, and star formation rates. Simulations provide galaxy images…

Astrophysics of Galaxies · Physics 2025-11-25 Kaley Brauer , Aditya Prasad Dash , Meet J. Vyas , Ahmed Salim , Stiven Briand Massala

We present deep unbiased spectroscopy of the Hubble Ultra Deep Field (UDF) carried out using the slitless grism spectroscopy mode of the Advance Camera for Surveys on the Hubble Space Telescope (HST). The GRIsm ACS Program for Extragalactic…

Establishing accurate morphological measurements of galaxies in a reasonable amount of time for future big-data surveys such as EUCLID, the Large Synoptic Survey Telescope or the Wide Field Infrared Survey Telescope is a challenge. Because…

Instrumentation and Methods for Astrophysics · Physics 2017-06-14 D. Tuccillo , M. Huertas-Company , E. Decenciere , S. Velasco-Forero

We present deep imaging at 6.7 micron and 15 micron from the CAM instrument on the Infrared Space Observatory (ISO), centred on the Hubble Deep Field (HDF). These are the deepest integrations published to date at these wavelengths in any…

Astrophysics · Physics 2015-06-24 The ISO-HDF Consortium , : , Steve Serjeant

Circumstellar disks play a key role in the understanding of stellar systems. Direct imaging of such extended structures is a challenging task. Current post-processing techniques, first tailored for exoplanets imaging, tend to produce…

Instrumentation and Methods for Astrophysics · Physics 2019-02-27 Benoît Pairet , Faustine Cantalloube , Laurent Jacques

Gravitational lensing has become one of the most powerful tools available for investigating the 'dark side' of the universe. Cosmological strong gravitational lensing, in particular, probes the properties of the dense cores of dark matter…

Cosmology and Nongalactic Astrophysics · Physics 2016-09-30 Nan Li , Michael D. Gladders , Esteban M. Rangel , Michael K. Florian , Lindsey E. Bleem , Katrin Heitmann , Salman Habib , Patricia Fasel

Current and upcoming wide-field, ground-based, broad-band imaging surveys promise to address a wide range of outstanding problems in galaxy formation and cosmology. Several such uses of ground-based data, especially weak gravitational…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Rachel Mandelbaum , Christopher M. Hirata , Alexie Leauthaud , Richard J. Massey , Jason Rhodes

We present a computationally efficient expectation-maximization framework for multi-frame image deconvolution and super-resolution. Our method is well adapted for processing large scale imaging data from modern astronomical surveys. Our…

Instrumentation and Methods for Astrophysics · Physics 2025-10-07 Yashil Sukurdeep , Fausto Navarro , Tamas Budavari

Cosmological simulations are a powerful tool to advance our understanding of galaxy formation and many simulations model key properties of real galaxies. A question that naturally arises for such simulations in light of high-quality…

Astrophysics of Galaxies · Physics 2025-09-10 Lingyi Zhou , Stefan T. Radev , William H. Oliver , Aura Obreja , Zehao Jin , Tobias Buck
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