The redshift evolution of bars is an important signpost of the dynamic maturity of disc galaxies. To characterize the intrinsic evolution safe from band-shifting effects, it is necessary to gauge how bar properties vary locally as a function of wavelength. We investigate bar properties in 16 nearby galaxies from the Spitzer Survey of Stellar
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It also provides access to IAC Preprints Repository here: https://research.iac.es/preprints/
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Bar properties as a function of wavelength: a local baseline with S<SUP>4</SUP>G for high-redshift studiesMenéndez-Delmestre, Karín et al.22024
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Cosmology and fundamental physics with the ELT-ANDES spectrograph
State-of-the-art 19th century spectroscopy led to the discovery of quantum mechanics, and 20th century spectroscopy led to the confirmation of quantum electrodynamics. State-of-the-art 21st century astrophysical spectrographs, especially ANDES at ESO's ELT, have another opportunity to play a key role in the search for, and characterization of, the
Martins, C. J. A. P. et al.Advertised on:
22024 -
Elemental Abundances of Planet-Host Cool Dwarfs: Clues on Planet Formation and Evolution
Since a large fraction of stars harbor at least one planet, the formation of planets around newly forming stars appears to be a common phenomenon. Planet cores are believed to grow by accreting materials from a protoplanetary disk spinning around its host star. This host star has a strong impact on the properties of the protoplanetary disk, and
Hejazi, Neda et al.Advertised on:
22024 -
First JWST Results Find No Alpha-Bimodality in M31
The recent era of large, ground-based abundance surveys has unraveled the chemical structures of our Milky Way galaxy. The most striking abundance feature is the alpha-abundance bimodality. The low-alpha stars are younger (1-8 Gyr) while the high-alpha stars are older (8-12 Gyr) and have a thicker distribution. While there are a number of models
Nidever, David et al.Advertised on:
22024 -
Ground-based photometric follow-up for exoplanet detections with the PLATO mission
Detections of transiting planets from the upcoming PLATO mission are expected to face significant contamination from contaminating eclipsing binaries, resulting in false positives. To counter this, a ground-based programme to acquire time-critical photometry is pursued. Its principal aim is to obtain time-series observations of the planet candidate
Deeg, H. J. et al.Advertised on:
22024 -
Modeling Binary Systems Containing the Hot White Dwarfs WD1136+667 and Gaia-DR2-1350
In this study, we look specifically at binary white dwarfs where the companion is a main sequence star. In particular, we look at very hot white dwarfs, many of which demonstrate the "hydrogen problem" in which modeling of their hydrogen absorption features, and optical features in general, do not appear to give accurate temperatures. The two
Wood, Hunter et al.Advertised on:
22024