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The Herschel-ATLAS is a survey of 550 square degrees with the Herschel Space Observatory in five far--infrared and submillimetre bands. The first data for the survey, observations of a field 4x4 sq. degrees in size, were taken during the…

The sodium laser guide star adaptive optics system ALFA, which is installed at the Calar Alto 3.5-m telescope, has been undergoing an intensive optimisation phase. Observations using natural guide stars that are presented in this paper,…

Astrophysics · Physics 2007-05-23 R. I. Davies , W. Hackenberg , T. Ott , A. Eckart , S. Rabien , S. Anders , S. Hippler , M. Kaspar

Motivated by the desire for wide-field images with well-defined statistical properties for 21cm cosmology, we implement an optimal mapping pipeline that computes a maximum likelihood estimator for the sky using the interferometric…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-28 Zhilei Xu , Jacqueline N. Hewitt , Kai-Feng Chen , Honggeun Kim , Joshua S. Dillon , Nicholas S. Kern , Miguel F. Morales , Bryna J. Hazelton , Ruby Byrne , Nicolas Fagnoni , Eloy de Lera Acedo , Zara Abdurashidova , Tyrone Adams , James E. Aguirre , Paul Alexander , Zaki S. Ali , Rushelle Baartman , Yanga Balfour , Adam P. Beardsley , Gianni Bernardi , Tashalee S. Billings , Judd D. Bowman , Richard F. Bradley , Philip Bull , Jacob Burba , Steven Carey , Chris L. Carilli , Carina Cheng , David R. DeBoer , Matt Dexter , Nico Eksteen , John Ely , Aaron Ewall-Wice , Randall Fritz , Steven R. Furlanetto , Kingsley Gale-Sides , Brian Glendenning , Deepthi Gorthi , Bradley Greig , Jasper Grobbelaar , Ziyaad Halday , Jack Hickish , Daniel C. Jacobs , Austin Julius , MacCalvin Kariseb , Joshua Kerrigan , Piyanat Kittiwisit , Saul A. Kohn , Matthew Kolopanis , Adam Lanman , Paul La Plante , Adrian Liu , Anita Loots , Yin-zhe Ma , David Harold Edward MacMahon , Lourence Malan , Cresshim Malgas , Keith Malgas , Bradley Marero , Zachary E. Martinot , Andrei Mesinger , Mathakane Molewa , Tshegofalang Mosiane , Steven G. Murray , Abraham R. Neben , Bojan Nikolic , Hans Nuwegeld , Aaron R. Parsons , Nipanjana Patra , Samantha Pieterse , Jonathan C. Pober , Nima Razavi-Ghods , James Robnett , Kathryn Rosie , Peter Sims , Craig Smith , Hilton Swarts , Nithyanandan Thyagarajan , Pieter Van Van Wyngaarden , Peter K. G. Williams , Haoxuan Zheng

We describe the new spectroscopic data reduction pipeline for the multi-object MMT/Magellan Infrared Spectrograph. The pipeline is implemented in idl as a stand-alone package and is publicly available in both stable and development…

Instrumentation and Methods for Astrophysics · Physics 2015-06-24 Igor Chilingarian , Yuri Beletsky , Sean Moran , Warren Brown , Brian McLeod , Daniel Fabricant

An imaging survey of the {\em IRAS} 1-Jy sample of 118 ultraluminous infrared galaxies was conducted at optical (R) and near-infrared (K') wavelengths using the University of Hawaii 2.2m telescope. The methods of observation and data…

Astrophysics · Physics 2009-11-07 D. -C. Kim , S. Veilleux , D. B. Sanders

The Gaia satellite will survey the entire celestial sphere down to 20th magnitude, obtaining astrometry, photometry, and low resolution spectrophotometry on one billion astronomical sources, plus radial velocities for over one hundred…

We report the design and characterization of a high performance integrated arbitrary filter from 1450 nm to 1640 nm. The filter's target spectrum is chosen to suppress the night-sky OH emission lines, which is critical for ground-based…

Instrumentation and Methods for Astrophysics · Physics 2020-06-02 Yi-Wen Hu , Shengjie Xie , Jiahao Zhan , Yang Zhang , Sylvain Veilleux , Mario Dagenais

Massive sets of stellar spectroscopic observations are rapidly becoming available and these can be used to determine the chemical composition and evolution of the Galaxy with unprecedented precision. One of the major challenges in this…

We present the Early Data Release of the Sydney-AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey. The SAMI Galaxy Survey is an ongoing integral field spectroscopic survey of ~3400 low-redshift (z<0.12) galaxies, covering…

We present "The HI Nearby Galaxy Survey (THINGS)", a high spectral (<=5.2 km/s) and spatial (~6") resolution survey of HI emission in 34 nearby galaxies obtained using the NRAO Very Large Array (VLA). The overarching scientific goal of…

We present an optical to near-infrared selected astronomical catalogue covering 1270 deg.$^2$. This is the first attempt to systematically combine data from 23 of the premier extragalactic survey fields - the product of a vast investment of…

M dwarfs are important targets in the search for Earth-like exoplanets due to their small masses and low luminosities. Several ongoing and upcoming space missions are targeting M dwarfs for this reason, and the ESA PLATO mission is one of…

The reduction of integral field spectroscopy (IFS) data requires several stages and many repetitive operations to convert raw data into, typically, a large number of spectra. Instead there are several semiautomatic data reduction tools and…

Astrophysics of Galaxies · Physics 2014-02-07 L. López-Martín

The Gaia mission will have a profound impact on our understanding of the structure and dynamics of the Milky Way. Gaia is providing an exhaustive census of stellar parallaxes, proper motions, positions, colors and radial velocities, but…

Instrumentation and Methods for Astrophysics · Physics 2016-10-19 Carlos Allende Prieto

A huge amount of data has been acquired with the GREGOR Fabry-P\'erot Interferometer (GFPI), large-format facility cameras, and since 2016 with the High-resolution Fast Imager (HiFI). These data are processed in standardized procedures with…

Instrumentation and Methods for Astrophysics · Physics 2017-09-20 C. Kuckein , C. Denker , M. Verma , H. Balthasar , S. J. González Manrique , R. E. Louis , A. Diercke

The Gamma-ray Large Area Space Telescope (GLAST) is an observatory designed to perform gamma-ray astronomy in the energy range 20 MeV to 300 GeV, with supporting measurements for gamma-ray bursts from 10 keV to 25 MeV. GLAST will be…

Astrophysics · Physics 2009-06-23 D. Paneque , A. Borgland , A. Bovier , E. Bloom , Y. Edmonds , S. Funk , G. Godfrey , R. Rando , L. Wai , P. Wang