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200 papers

We present the current status of the SuperWASP project, a Wide Angle Search for Planets. SuperWASP consists of up to 8 individual cameras using ultra-wide field lenses backed by high-quality passively cooled CCDs. Each camera covers 7.8 x…

We describe the scientific goals and survey design of the First Large Absorption Survey in HI (FLASH), a wide field survey for 21-cm line absorption in neutral atomic hydrogen (HI) at intermediate cosmological redshifts. FLASH will be…

Baryonic Acoustic Oscillations (BAO) and their effects on the matter power spectrum can be studied by using the Lyman-alpha absorption signature of the matter density field along quasar (QSO) lines of sight. A measurement sufficiently…

Cosmology and Nongalactic Astrophysics · Physics 2009-10-21 Ch. Yeche , P. Petitjean , J. Rich , E. Aubourg , N. Busca , J. -Ch. Hamilton , J. -M. Le Goff , I. Paris , S. Peirani , Ch. Pichon , E. Rollinde , M. Vargas-Magana

This paper provides an overview of the PACS photometer flux calibration concept, in particular for the principal observation mode, the scan map. The absolute flux calibration is tied to the photospheric models of five fiducial stellar…

We present an overview of the Space Telescope A901/2 Galaxy Evolution Survey (STAGES). STAGES is a multiwavelength project designed to probe physical drivers of galaxy evolution across a wide range of environments and luminosity. A complex…

Having achieved 'first-light' right before the opening ceremony on September 25, 2016, the Five-hundred-meter Aperture Spherical radio Telescope (FAST) is being busily commissioned. Its innovative design requires ~1000 points to be measured…

Instrumentation and Methods for Astrophysics · Physics 2018-05-09 Di Li , Pei Wang , Lei Qian , Marko Krco , Alex Dunning , Peng Jiang , Youling Yue , Chenjin Jin , Yan Zhu , Zhichen Pan , Rendong Nan

MiniJPAS is a ~1 deg^2 imaging survey of the AEGIS field in 60 bands, performed to demonstrate the scientific potential of the upcoming JPAS survey. Full coverage of the 3800-9100 \AA range with 54 narrow and 6 broad optical filters allow…

The limits to the angular resolution achievable with conventional ground-based telescopes are unchanged over 70 years. Atmospheric turbulence limits image quality to typically ~1 arcsec in practice. We have developed a new concept of…

Instrumentation and Methods for Astrophysics · Physics 2016-08-25 Craig Mackay , Martin Dominik , Iain Steele

J-PLUS is an ongoing 12-band photometric optical survey, observing thousands of square degrees of the Northern hemisphere from the dedicated JAST/T80 telescope at the Observatorio Astrof\'isico de Javalambre. T80Cam is a 2 sq.deg…

Astrophysics of Galaxies · Physics 2019-08-13 A. J. Cenarro , M. Moles , D. Cristóbal-Hornillos , A. Marín-Franch , A. Ederoclite , J. Varela , C. López-Sanjuan , C. Hernández-Monteagudo , R. E. Angulo , H. Vázquez Ramió , K. Viironen , S. Bonoli , A. A. Orsi , G. Hurier , I. San Roman , N. Greisel , G. Vilella-Rojo , L. A. Díaz-García , R. Logroño-García , S. Gurung-López , D. Spinoso , D. Izquierdo-Villalba , J. A. L. Aguerri , C. Allende Prieto , C. Bonatto , J. M. Carvano , A. L. Chies-Santos , S. Daflon , R. A. Dupke , J. Falcón-Barroso , D. R. Gonçalves , Y. Jiménez-Teja , A. Molino , V. M. Placco , E. Solano , D. D. Whitten , J. Abril , J. L. Antón , R. Bello , S. Bielsa de Toledo , J. Castillo-Ramírez , S. Chueca , T. Civera , M. C. Díaz-Martín , M. Domínguez-Martínez , J. Garzarán-Calderaro , J. Hernández-Fuertes , R. Iglesias-Marzoa , C. Iñiguez , J. M. Jiménez Ruiz , K. Kruuse , J. L. Lamadrid , N. Lasso-Cabrera , G. López-Alegre , A. López-Sainz , N. Maícas , A. Moreno-Signes , D. J. Muniesa , S. Rodríguez-Llano , F. Rueda-Teruel , S. Rueda-Teruel , I. Soriano-Laguía , V. Tilve , L. Valdivielso , A. Yanes-Díaz , J. S. Alcaniz , C. Mendes de Oliveira , L. Sodré , P. Coelho , R. Lopes de Oliveira , A. Tamm , H. S. Xavier , L. R. Abramo , S. Akras , E. J. Alfaro , A. Alvarez-Candal , B. Ascaso , M. A. Beasley , T. C. Beers , M. Borges Fernandes , G. R. Bruzual , M. L. Buzzo , J. M. Carrasco , J. Cepa , A. Cortesi , M. V. Costa-Duarte , M. De Prá , G. Favole , A. Galarza , L. Galbany , K. Garcia , R. M. González Delgado , J. I. González-Serrano , L. A. Gutiérrez-Soto , J. A. Hernandez-Jimenez , A. Kanaan , H. Kuncarayakti , R. C. G. Landim , J. Laur , J. Licandro , G. B. Lima Neto , J. D. Lyman , J. Maíz Apellániz , J. Miralda-Escudé , D. Morate , J. P. Nogueira-Cavalcante , P. M. Novais , M. Oncins , I. Oteo , R. A. Overzier , C. B. Pereira , A. Rebassa-Mansergas , R. R. R. Reis , F. Roig , M. Sako , N. Salvador-Rusiñol , L. Sampedro , P. Sánchez-Blázquez , W. A. Santos , L. Schmidtobreick , B. B. Siffert , E. Telles

We present the photometric calibration of the HST Advanced Camera for Surveys (ACS). We give here an overview of the performance and calibration of the 2 CCD cameras, the Wide Field Channel (WFC) and the High Resolution Channel (HRC), and a…

We have designed, constructed and put into operation a very large area CCD camera that covers the field of view of the 1.2 m Samuel Oschin Schmidt Telescope at the Palomar Observatory. The camera consists of 112 CCDs arranged in a mosaic of…

We report on the development of SuperCam, a 64 pixel, superheterodyne camera designed for operation in the astrophysically important 870 micron atmospheric window. SuperCam will be used to answer fundamental questions about the physics and…

To establish the connection between galaxies and UV-detected absorption systems in the local universe, a deep ($g\leq20$) and wide ($\sim20^{\prime}$ radius) galaxy redshift survey is presented around 47 sight lines to UV-bright AGN…

We present the Lambda Adaptive Multi-Band Deblending Algorithm in R (LAMBDAR), a novel code for calculating matched aperture photometry across images that are neither pixel- nor PSF-matched, using prior aperture definitions derived from…

Single-shot ultrafast optical imaging plays a very important role in the detection of transient scenes, especially in capturing irreversible or stochastic dynamic scenes. To break the limit of time response speed of electronic devices, such…

Redshift measures the distance to galaxies and underlies our understanding of the origin of the Universe and galaxy evolution. Spectroscopic redshift is the gold-standard method for measuring redshift, but it requires about $1000$ times…

Astrophysics of Galaxies · Physics 2025-05-19 Andrew Lizarraga , Eric Hanchen Jiang , Jacob Nowack , Yun Qi Li , Ying Nian Wu , Bernie Boscoe , Tuan Do

Photoacoustic image (PAI) quality improvement using a low frequency piezoelectric micromachined ultrasound transducer (PMUT) having the fundamental resonant frequency 1 MHz is being reported. Specifically, three different methods are…

Instrumentation and Detectors · Physics 2022-12-01 Kaustav Roy , Arijit Paramanik , Souradip Paul , Akshay Kalyan , Eshani Sarkar , Anuj Ashok , Rudra Pratap , M Suheshkumar Singh

ULTRACAM is an ultra-fast, triple-beam CCD camera which has been designed to study one of the few remaining unexplored regions of observational parameter space - high temporal resolution. The camera will see first light in Spring 2002, at a…

Astrophysics · Physics 2007-05-23 Vik Dhillon , Tom Marsh , the ULTRACAM team
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