Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Demleitner, M"'
Autor:
Fouesneau, M., Andrae, R., Dharmawardena, T., Rybizki, J., Bailer-Jones, C. A. L., Demleitner, M.
Publikováno v:
A&A 662, A125 (2022)
Stellar physical and dynamical properties are essential knowledge to understanding the structure, formation, and evolution of our Galaxy. We produced an all-sky uniformly derived catalog of stellar astrophysical parameters (APs; age, mass, temperatur
Externí odkaz:
http://arxiv.org/abs/2201.03252
Publikováno v:
Astronomical Journal, 161, 147 (2021)
Stellar distances constitute a foundational pillar of astrophysics. The publication of 1.47 billion stellar parallaxes from Gaia is a major contribution to this. Yet despite Gaia's precision, the majority of these stars are so distant or faint that t
Externí odkaz:
http://arxiv.org/abs/2012.05220
Publikováno v:
A&A 637, A4 (2020)
Accurate atomic data is an essential ingredient for the calculation of reliable non-local thermodynamic equilibrium (NLTE) model atmospheres that are mandatory for the spectral analysis of hot stars. We aim to search for and identify for the first ti
Externí odkaz:
http://arxiv.org/abs/2004.01633
Publikováno v:
A&A 620, A175 (2018)
Context: Astrometric gravitational microlensing is an excellent tool to determine the mass of stellar objects. Using precise astrometric measurements of the lensed position of a background source in combination with accurate predictions of the positi
Externí odkaz:
http://arxiv.org/abs/1807.11077
Publikováno v:
A&A 615, L11 (2018)
Context. Astrometric microlensing is an excellent tool to determine the mass of a stellar object. By measuring the astrometric shift of a background source star in combination with precise predictions of its unlensed position and of the lens position
Externí odkaz:
http://arxiv.org/abs/1805.08023
The German Astrophysical Virtual Observatory (GAVO) developed the registered service TheoSSA (theoretical stellar spectra access) and the supporting registered VO tool TMAW (Tuebingen Model-Atmosphere WWW interface). These allow individual spectral a
Externí odkaz:
http://arxiv.org/abs/1801.01295
Publikováno v:
A&A 606, A105 (2017)
To analyze spectra of hot stars, advanced non-local thermodynamic equilibrium (NLTE) model-atmosphere techniques are mandatory. Reliable atomic data is for the calculation of such model atmospheres. We aim to calculate new Sr IV - VII oscillator stre
Externí odkaz:
http://arxiv.org/abs/1706.09215
Publikováno v:
In Astronomy and Computing April 2022 39
The Gaia Archive provides access to observations of around a billion sky sources. The primary access to this archive is via TAP services such as GACS and ARI-Gaia, which allow execution of SQL-like queries against a large remote database returning a
Externí odkaz:
http://arxiv.org/abs/1611.09190
Autor:
Rauch, T., Gamrath, S., Quinet, P., Loebling, L., Hoyer, D., Werner, K., Kruk, J. W., Demleitner, M.
Publikováno v:
A&A 599, A142 (2017)
For the spectral analysis of high-resolution and high-signal-to-noise spectra of hot stars, state-of-the-art non-local thermodynamic equilibrium (NLTE) model atmospheres are mandatory. These are strongly dependent on the reliability of the atomic dat
Externí odkaz:
http://arxiv.org/abs/1611.07364