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Time-resolved ground-based surveys in general, and photometric ones in particular, have played a crucial role in building up our knowledge of the properties, physical nature, and the very existence of the many different classes of variable…

Solar and Stellar Astrophysics · Physics 2023-02-06 M. Catelan

Laboratory astrophysics and complementary theoretical calculations are the foundations of astronomy and astrophysics and will remain so into the foreseeable future. The impact of laboratory astrophysics ranges from the scientific conception…

Instrumentation and Methods for Astrophysics · Physics 2012-08-27 AAS WGLA , : , Nancy Brickhouse , John Cowan , Paul Drake , Steven Federman , Gary Ferland , Adam Frank , Wick Haxton , Eric Herbst , Keith Olive , Farid Salama , Daniel Wolf Savin , Lucy Ziurys

The interaction rate of hypothesised dark matter particles in an Earth-bound detector is expected to undergo an annual modulation due to the planet's orbital motion. The DAMA experiment has observed such a modulation with high significance…

High Energy Physics - Experiment · Physics 2020-04-24 Irene Bolognino

Solar astrometry deals with the accurate measumerent of the solar diameter, and in general with the measurement of the shape of the Sun. During the last decades several techniques have been developed to monitor the radius and the irradiance…

Solar and Stellar Astrophysics · Physics 2015-06-03 Costantino Sigismondi

We present the results of the atmospheric optical turbulence (OT) measurements performed atop Mt. Shatdzhatmaz at the installation site of new 2.5-m telescope of Sternberg Astronomical Institute. Nearly 300 000 vertical OT profiles from the…

Instrumentation and Methods for Astrophysics · Physics 2016-03-09 Victor Kornilov , Boris Safonov , Matwey Kornilov , Nicolay Shatsky , Olga Voziakova , Sergei Potanin , Igor Gorbunov , Victor Senik , Dmitry Cheryasov

The Sky Brightness Monitor (SBM) is an important instrument to measure the brightness level for the sky condition, which is a critical parameter for judging a site for solar coronal observations. In this paper we present an automatic method…

Solar and Stellar Astrophysics · Physics 2015-06-22 M. Y. Zhao , Y. Liu , A. Elmhamdi , A. S. Kordi , H. A. Al-trabulsy , X. F. Zhang , T. F. Song , S. Q. Liu , Y. D. Shen , Z. J. Tian , Y. H. Miao

Oscillation frequencies are the most accurate properties one can measure for a star, potentially allowing detailed tests of stellar models and evolution theories. We briefly review asteroseismology for two classes of stars. In delta Scuti…

Astrophysics · Physics 2007-05-23 Hans Kjeldsen , Timothy R. Bedding

A program that we call the QUEST Data Processing Software Pipeline has been written to process the large volumes of data produced by the QUEST camera on the Samuel Oschin Schmidt Telescope at the Palomar Observatory. The program carries out…

I review recent results from numerical simulations on the structure and dynamics of the ISM, and attempt to put together a coherent dynamical scenario. In particular, I discuss results on 1) the spatial distribution of the gas components,…

Astrophysics · Physics 2007-05-23 Enrique Vazquez-Semadeni

The direct detection of dark matter is a key problem in astroparticle physics that generally requires the use of deep-underground laboratories for a low-background environment where the rare signals from dark matter interactions can be…

Interferometry has brought many new constraints in optical astronomy in the recent years. A major leap in this field is the opening of large interferometric facilities like the Very Large Telescope Interferometer and the Keck Interferometer…

Astrophysics · Physics 2007-05-23 F. Malbet

Optical designs for astronomy involve implementation of active optics and adaptive optics from X-ray to the infrared. Developments and results of active optics methods for telescopes, spectrographs and coronagraph planet finders are…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 Gerard R. Lemaitre

The ability to test the nature of dark mass-energy components in the universe through large-scale structure studies hinges on accurate predictions of sky survey expectations within a given world model. Numerical simulations predict key…

Asteroseismology has the capability of delivering stellar properties which would otherwise be inaccessible, such as radii, masses and thus ages of stars. When this information is coupled with classical determinations of stellar parameters,…

Solar and Stellar Astrophysics · Physics 2019-08-14 Luca Casagrande , Victor Silva Aguirre , Aldo M. Serenelli , Dennis Stello , Sofia Feltzing , Katharine J. Schlesinger

As the Stars and Stellar Evolution (SSE) panel is fully aware, the next decade will see major advances in our understanding of these areas of research. To quote from their charge, these advances will occur in studies of the Sun as a star,…

Instrumentation and Methods for Astrophysics · Physics 2012-08-27 AAS WGLA , : , Nancy Brickhouse , John Cowan , Paul Drake , Steven Federman , Gary Ferland , Adam Frank , Eric Herbst , Keith Olive , Farid Salama , Daniel Wolf Savin , Lucy Ziurys

Experience suggests that structural issues in how institutional Astrophysics approaches data-driven science and the development of discovery technology may be hampering the community's ability to respond effectively to a rapidly changing…

The nuclear astrophysics setup at the Institute for Nuclear Physics, University of Cologne, Germany is dedicated to measurements of total and partial cross sections of charged-particle induced reactions at astrophysically relevant energies.…

Nuclear Experiment · Physics 2020-07-28 F. Heim , J. Mayer , M. Müller , P. Scholz , M. Weinert , A. Zilges

The Gaia all-sky astrometric survey is challenged by several issues affecting the spacecraft stability. Amongst them, we find the focus evolution, straylight and basic angle variations Contrary to pre-launch expectations, the image quality…

Turbulence and kinetic processes in magnetized space plasmas have been extensively investigated over the past decades via \emph{in-situ} spacecraft measurements, theoretical models and numerical simulations. In particular, multi-point…

Solar and Stellar Astrophysics · Physics 2019-10-15 S. S. Cerri , D. Grošelj , L. Franci

The Australian Astronomical Observatory operates the Anglo-Australian Telescope and the United Kingdom Schmidt Telescope in Australia, as well as coordinating access for the Australian community to the Gemini, Magellan, and other…

Instrumentation and Methods for Astrophysics · Physics 2011-08-26 Andrew M. Hopkins , Gayandhi M. De Silva , Chris M. Springob , Stuart D. Ryder , Fred G. Watson , Matthew M. Colless
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