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Related papers: The GALAH survey: The data reduction pipeline

200 papers

We present the current status of two new fully automated reduction and analysis pipelines, built for the Euler telescope and the CORALIE spectrograph. Both pipelines have been designed and built independently at the Universidad de Chile and…

Earth and Planetary Astrophysics · Physics 2010-12-16 James S. Jenkins , Andres Jordan

Pioneering photometric, astrometric, and spectroscopic surveys are helping exoplanetary scientists better constrain the fundamental properties of stars within our galaxy, and the planets these stars host. In this study, we use the third…

Aims. The goal of our survey is to provide accurate and multi-epoch radial velocities, atmospheric parameters (Teff, log g and [M/H]), distances and space velocities of faint Red Clump stars. Methods. We recorded high signal-to-noise (S/N…

Astrophysics of Galaxies · Physics 2015-05-20 T. Saguner , U. Munari , M. Fiorucci , A. Vallenari

In the era of vast spectroscopic surveys focusing on Galactic stellar populations, astronomers want to exploit the large quantity and good quality of data to derive their atmospheric parameters without losing precision from automatic…

Solar and Stellar Astrophysics · Physics 2017-12-13 M. Tsantaki , D. T. Andreasen , G. D. C. Teixeira , S. G. Sousa , N. C. Santos , E. Delgado-Mena , G. Bruzual

With the advent of a new generation of telescopes (INTEGRAL, Fermi, H.E.S.S., MAGIC, VERITAS, MILAGRO) and the prospects of planned observatories such as CTA or HAWC, gamma-ray astronomy is becoming an integral part of modern astrophysical…

Instrumentation and Methods for Astrophysics · Physics 2011-10-31 Jürgen Knödlseder

Coming high-cadence wide-field optical telescopes will image hundreds of thousands of sources per minute. Besides inspecting the near real-time data streams for transient and variability events, the accumulated data archive is a wealthy…

Instrumentation and Methods for Astrophysics · Physics 2018-03-20 Bart Scheers , Steven Bloemen , Hannes Mühleisen , Pim Schellart , Arjen van Elteren , Martin Kersten , Paul J. Groot

Both the quality and amount of astrophysical data are steadily increasing over time owing to the improvement of telescopes and their instruments. This requires corresponding evolution of the techniques used for obtaining and analyzing the…

Solar and Stellar Astrophysics · Physics 2021-04-14 J. C. Trelles Arjona , B. Ruiz Cobo , M. J. Martínez González

We describe the calibration and imaging heuristics developed and deployed in the ALMA interferometric data processing pipeline, as of ALMA Cycle 9. The pipeline software framework is written in Python, with each data reduction stage layered…

As the fields of stellar and exoplanetary study grow and revolutionary new detection instruments are created, it is imperative that a homogeneous, precise source of stellar parameters is available. This first work of the gr8stars…

Our HST/NICMOS Pa survey of the Galactic center (GC) provides a uniform, panoramic, high-resolution map of stars and ionized diffuse gas in the central 416 arcmin^2 of the Galaxy. This survey was carried out with 144 HST orbits using two…

Astrophysics of Galaxies · Physics 2015-05-28 H. Dong , Q. D. Wang , A. Cotera , S. Stolovy , M. R. Morris , J. Mauerhan , E. A. Mills , G. Schneider , D. Calzetti , C. Lang

The GALEX General Data Release 4/5 includes 174 spectroscopic tiles, obtained from slitless grism observations, for a total of more than 60,000 ultraviolet spectra. We have determined statistical properties of the sample of GALEX stars. We…

Solar and Stellar Astrophysics · Physics 2015-05-27 Emanuele Bertone , Miguel Chavez

We present the Calar Alto Legacy Integral Field Area survey (CALIFA). CALIFA's main aim is to obtain spatially resolved spectroscopic information for ~600 galaxies of all Hubble types in the Local Universe (0.005< z <0.03). The survey has…

In this article, we speculate on the possible mechanisms for Li enhancement origin in RGB stars based on a large data set of around 340,299 stars collected from the GALAH survey combined with the Gaia astrometry. Data has 51,982 low mass…

Solar and Stellar Astrophysics · Physics 2019-01-29 Deepak , Bacham Eswar Reddy

We are proposing a new spectrograph (ATLAS) which would revolutionise intermediate-dispersion observations at the AAT. Based on the new technology of Volume Phase Holographic gratings, and using transmission optics, ATLAS offers high…

Astrophysics · Physics 2015-06-24 J. G. Robertson , K. Taylor , I. K. Baldry , P. R. Gillingham , S. C. Barden

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…

Traditional radio telescopes use large, steel dishes to observe radio sources. The LOFAR radio telescope is different, and uses tens of thousands of fixed, non-movable antennas instead, a novel design that promises ground-breaking research…

Distributed, Parallel, and Cluster Computing · Computer Science 2011-05-04 Jan David Mol , John W. Romein

ALMA's high-resolution images allow to resolve the filamentary structure of the ISM down to few thousand au at kpc distances. We aim to systematically quantify the impact of the interferometric response and the effects of the short-spacing…

Astrophysics of Galaxies · Physics 2024-08-07 F. Bonanomi , A. Hacar , A. Socci , D. Petry , S. Suri

This paper describes the on-telescope performance of the Wide Field Spectrograph (WiFeS). The design characteristics of this instrument, at the Research School of Astronomy and Astrophysics (RSAA) of the Australian National University (ANU)…

Instrumentation and Methods for Astrophysics · Physics 2010-02-25 Michael Dopita , Jonghwan Rhee , Catherine Farage , Peter McGregor , Gabe Bloxham , Anthony Green , Bill Roberts , Jon Nielson , Greg Wilson , Peter Young

The Pisgah Survey, located at the facilities of the Pisgah Astronomical Research Institute in Rosman NC, is a low cost project to acquire fully-automated I band photometry of selected areas of the sky. The survey collects multiple images of…

Astrophysics · Physics 2009-11-10 M. Lopez-Morales , J. Christopher Clemens