Results 21 to 30 of about 108,892 (343)
Looking into dark matter with asteroseismology
Frontiers in Astronomy and Space Sciences, 2022 Dark matter remains as an elusive component of modern Cosmology. According to previous research, stellar physics observables can be affected by the presence of hypothetical dark matter particles, which can be produced or accreted into the stars.
Adrián Ayala
doaj +1 more source
, 2005 We present line strengths in the bulges and inner disks of 38 galaxies in the local universe, including several galaxies whose bulges were previously identified as being disk-like in their colors or kinematics, to see if their spectral properties reveal ...
Holtzman, Jon A., Moorthy, Bhasker K.
core +1 more source
Being WISE, I : validating stellar population models and M*/L ratios at 3.4 and 4.6 µm [PDF]
, 2014 Using data from the Wide-field Infrared Survey Explorer mission, we have measured near infra-red (NIR) photometry of a diverse sample of dust-free stellar systems (globular clusters, dwarf and giant early-type galaxies) which have metallicities that span
Groves, Brent +5 more
core +2 more sources
DSPS: Differentiable stellar population synthesis
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT Models of stellar population synthesis (SPS) are the fundamental tool that relates the physical properties of a galaxy to its spectral energy distribution (SED). In this paper, we present DSPS: a python package for SPS. All of the functionality in DSPS is implemented natively in the JAX library for automatic differentiation, and
Andrew P Hearin +4 more
openaire +2 more sources
Astroserver – Research Services in the Stellar Webshop
Open Astronomy, 2017 A quick look at research and development in astronomy shows that we live in exciting times. Exoplanetary systems, supernovae, and merging binary black holes were far out of reach for observers two decades ago and now such phenomena are recorded routinely.
Németh Péter
doaj +1 more source
The Astrophysical Journal, 2023 We combine an unprecedented MaNGA sample of over 3000 passive galaxies in the stellar mass range 10 ^9 –10 ^12 M _⊙ with the Sloan Digital Sky Survey group catalog by Tinker to quantify how central and satellite formation, quantified by radial profiles ...
Grecco A. Oyarzún +7 more
doaj +1 more source
The Astrophysical Journal Supplement Series, 2023 We present reprocessed flux-calibrated spectra of 406 stars from the UVES-POP stellar library in the wavelength range 320–1025 nm, which can be used for stellar population synthesis.
Sviatoslav B. Borisov +10 more
doaj +1 more source
Spatially Resolved Spectroscopic Star Formation Histories of Nearby Disks: Hints of Stellar Migration [PDF]
, 2012 We use the Mitchell Spectrograph (formerly VIRUS-P) to observe 12 nearby disk galaxies. We successfully measure ages in the outer disk in six systems. In three cases (NGC 2684, NGC 6155, and NGC 7437), we find that a downward break in the disk surface ...
Debattista, Victor P. +2 more
core +3 more sources
Stellar Populations Across cD Galaxies [PDF]
Proceedings of the International Astronomical Union, 2006 Abstract We present preliminary long-slit spectroscopy of a sample of nearby cD galaxies recently observed with the William Herschel and GEMINI North and South Telescopes. So far, we have accumulated data for 27 cDs. More is being observed with the GEMINI telescopes, to create a statistically significant sample.
Loubser, S, Sansom, A, Soechting, I
openaire +2 more sources
Stellar populations of shell galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 Submitted to MNRAS.
Carlsten, S., Hau, G. K. T., Zenteno, A.
openaire +2 more sources