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200 papers

We present Pipe3D, an analysis pipeline based on the FIT3D fitting tool, devel- oped to explore the properties of the stellar populations and ionized gas of Integral Field Spectroscopy data. Pipe3D was created to provide with coherent,…

Two-dimensional (2D) materials are promising candidates for next-generation electronic devices. In this regime, insulating 2D ferromagnets, which remain rare, are of special importance due to their potential for enabling new device…

Materials Science · Physics 2019-03-14 Tai Kong , Karoline Stolze , Erik I. Timmons , Jing Tao , Danrui Ni , Shu Guo , Zoë Yang , Ruslan Prozorov , R. J. Cava

Stark broadening theory is currently operated for calculating widths and shifts of spectral lines that are needed for spectroscopic diagnostics and modelling in astrophysics, laboratory and technological plasmas. We have calculated a great…

Solar and Stellar Astrophysics · Physics 2018-03-14 Sylvie Sahal-Brechot , Milan S. Dimitrijevic , Nebil Ben Nessib

The proper scientific analysis of a large amount of stellar spectra requires certain capabilities of the analysing tool (e.g. precise semi-automatic fitting for normalisation of the continuum or line-list assisted measurement of spectral…

Instrumentation and Methods for Astrophysics · Physics 2011-12-14 Petr Škoda

We describe a new atomic and molecular database we developed for use in the spectral synthesis code Cloudy. The design of Stout is driven by the data needs of Cloudy, which simulates molecular, atomic, and ionized gas with kinetic…

Instrumentation and Methods for Astrophysics · Physics 2015-07-15 M. L. Lykins , G. J. Ferland , R. Kisielius , M. Chatzikos , R. L. Porter , P. A. M. van Hoof , R. J. R. Williams , F. P. Keenan , P. C. Stancil

The third release of the Gaia catalogue contains the radial velocities for 33,812,183 stars having effective temperatures ranging from 3100 K to 14,500 K. The measurements are based on the comparison of the observed RVS spectrum (wavelength…

The Characterisation data model is a standard of the International Virtual Observatory Alliance (IVOA) that describes observational datasets in the multi-dimensional parameter space. Defining three properties: coverage, resolution, and…

Instrumentation and Methods for Astrophysics · Physics 2011-12-23 Francois Bonnarel , Mireille Louys , Igor Chilingarian

Independent of established data centers, and partly for my own research, since 1989 I have been collecting the tabular data from over 2600 articles concerned with radio sources and extragalactic objects in general. Optical character…

Instrumentation and Methods for Astrophysics · Physics 2009-11-13 Heinz Andernach

We present a catalog of absorption lines in the z', Y, and J bands that we identified in 21 Lyn, a slowly rotating A0.5 V star. We detected 155 absorption features in the high-resolution (0.90-1.35 um, R = 28,000) spectrum obtained with the…

Hot sub-luminous stars represent a population of stripped and evolved red giants that is located on the extreme horizontal branch. Since they exhibit a wide range of variability due to pulsations or binary interactions, it is crucial to…

Solar and Stellar Astrophysics · Physics 2025-01-29 P. Ranaivomanana , M. Uzundag , C. Johnston , P. J. Groot , T. Kupfer , C. Aerts

We explore the dominant modes of variability in the observed albedo at the cloud tops of Venus using the Akatsuki UVI 283-nm and 365-nm observations, which are sensitive to SO2 and unknown UV absorber distributions respectively, over the…

Earth and Planetary Astrophysics · Physics 2019-06-12 Pushkar Kopparla , Yeon Joo Lee , Takeshi Imamura , Atsushi Yamazaki

The third Gaia data release is published in two stages. The early part, Gaia EDR3, gives very precise astrometric and photometric properties for nearly two billion sources together with seven million radial velocities from Gaia DR2. The…

NEMO.2003 (vienna NEw MOdel grid of stellar atmospheres) is a DVD with 91,520 stellar model atmospheres representing a 5D grid of modified ATLAS9 atmospheres; the purpose of the modifications was to include different treatments of…

Astrophysics · Physics 2007-05-23 J. Nendwich , U. Heiter , F. Kupka , N. Nesvacil , W. W. Weiss

Within the framework of the German Astrophysical Virtual Observatory (GAVO), we provide synthetic spectra, simulation software for the calculation of NLTE model atmospheres, as well as necessary atomic data. This will enable a VO user to…

Astrophysics · Physics 2007-06-18 Thomas Rauch

Current theory regarding heavy element nucleosynthesis in metal-poor environments states that the r-process would be dominant. The star HD140283 has been the subject of debate after it appeared in some studies to be dominated by the…

Solar and Stellar Astrophysics · Physics 2016-08-14 A. J. Gallagher , S. G. Ryan , A. E. García Pérez , W. Aoki

The ExoMol database aims to provide comprehensive molecular line lists for exoplanetary and other hot atmospheres. The data are expanded by inclusion of empirically derived line lists taken from the literature for a series of diatomic…

Solar and Stellar Astrophysics · Physics 2020-02-18 Yixin Wang , Jonathan Tennyson , Sergei N. Yurchenko

Chromospherically Active Binaries (CAB) catalogue have been revised and updated. With 203 new identifications, the number of CAB stars is increased to 409. Catalogue is available in electronic format where each system has various number of…

Astrophysics · Physics 2009-11-13 Z. Eker , N. Filiz Ak , S. Bilir , D. Dogru , M. Tuysuz , E. Soydugan , H. Bakis , B. Ugras , F. Soydugan , A. Erdem , O. Demircan

We have conducted a three band (BVI) variability survey of the globular cluster M3. This is the first three band survey of the cluster using modern image subtraction techniques. Observations were made over 9 nights in 1998 on the 1.2m…

Astrophysics · Physics 2009-11-10 J. D. Hartman , J. Kaluzny , A. Szentgyorgyi , K. Z. Stanek

A database is under construction to provide a complete collection of published basic properties of hypernuclei such as {\Lambda} binding energies, lifetimes, or excitation energies. From these values, averages with related errors are…