Results 11 to 20 of about 4,703 (262)
Possible orbits of a satellite galaxy for shell formation in galaxy merger events [PDF]
Serbian Astronomical JournalWe investigated formation of stellar shells in mergers between the host spiral galaxy and its satellite galaxy in different scenarios. Results of previous works showed that stellar shells are formed in very radial mergers. We run N-body simulations for 4
Milošević S.
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Stellar twins determine the distance of the Pleiades [PDF]
Astronomy & Astrophysics, 2016 Since the release of the Hipparcos catalog in 1997, the distance to the Pleiades open cluster has been heavily debated. The distance obtained from Hipparcos and those by alternative methods differ by 10 to 15 %. As accurate stellar distances are key to understanding stellar structure and evolution, this dilemma puts the validity of stellar evolution ...
Mädler, Thomas, +7 more
openaire +3 more sources
The Astrophysical Journal Supplement Series, 2023 This investigation is mainly focused on the LSST Survey Strategy Optimization process, a bottom-up approach that turned out to be quite effective in involving the scientific community in the definition of the LSST observing strategy.
M. Di Criscienzo +13 more
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Modeling of Magnetospheres of Terrestrial Exoplanets in the Habitable Zone around G-Type Stars
Universe, 2022 Using a paraboloid model of an Earth-like exoplanetary magnetospheric magnetic field, developed from a model of the Earth, we investigate the magnetospheric structure of planets located in the habitable zone around G-type stars.
Elena S. Belenkaya +2 more
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Stellar Distances and Hipparcos [PDF]
International Astronomical Union Colloquium, 1993 AbstractHipparcos, the astrometric satellite of the European Space Agency, launched in August 1989, will provide absolute trigonometric parallaxes for about 100 000 stars brighter than the limiting V-magnitude 12.5. In spite of the difficulties caused by a faulty orbit, the mission is successfully going on.
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Empirical 2MASS–WFC3/IR Filter Transformations Across the H-R Diagram from Synthetic Photometry
The Astronomical Journal, 2023 Near-infrared bandpasses on spaceborne observatories diverge from their ground-based counterparts as they are free of atmospheric telluric absorption.
M. J. Durbin +4 more
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Distances to Nearby Molecular Clouds Traced by Young Stars
The Astrophysical Journal Supplement Series, 2023 I present a catalog of distances to 63 molecular clouds located within ∼2.5 kpc of the Sun. The cloud distances are derived based on utilizing the Gaia DR3 parallaxes of the young stellar objects (YSOs). By identifying AllWISE YSO candidates (YSOCs) with
Miaomiao Zhang
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RR Lyrae and Type II Cepheid Variables in Globular Clusters: Optical and Infrared Properties
Universe, 2022 Globular clusters are both primary fossils of galactic evolution and formation and are ideal laboratories for constraining the evolution of low-mass and metal-poor stars.
Anupam Bhardwaj
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The distance of M 33 and the stellar population in its outskirts [PDF]
Astronomy & Astrophysics, 2004 We present deep V,I photometry of two $9.4' x 9.4' field in the outer regions of the M33 galaxy. We obtain a robust detection of the luminosity of the Red Giant Branch Tip (I{TRGB}=20.72 +- 0.08) from which we derived a new estimate of the distance modulus of M33, (m-M)_0=24.64 +- 0.15, corresponding to a distance D=847 +- 60 Kpc.
GALLETI, SILVIA +2 more
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