Results 51 to 60 of about 5,843,387 (165)
Formation Process of the Young Stellar Population in Messier 16 from a Kinematic Perspective
The Astronomical JournalWe present a kinematic study of young stars in Messier 16 (M16) using the Gaia Data Release 3 and high-resolution spectra. A total of 345 stars are selected as genuine members using the published lists of X-ray sources, infrared sources, and early-type ...
Beomdu Lim +6 more
doaj +1 more source
The Astronomical JournalThe extinction law from ultraviolet (UV) to infrared (IR; 0.2–24 μ m) is determined by relying on the blue-edge method and color-excess ratios for some nearby molecular clouds, from the low-mass star-forming region to the massive star-forming region. The
ZheTai Cao +3 more
doaj +1 more source
Confidence intervals for extinction risk: Validating population viability analysis with limited data
Methods in Ecology and Evolution, Volume 17, Issue 6, Page 1837-1850, June 2026.Abstract The assessment of extinction risk remains a key component of IUCN and CITES evaluations. However, it has been argued that, under realistic data limitations, confidence intervals (CIs) for extinction probability often span the entire 0–1 range, rendering such assessments meaningless.
Hiroshi Hakoyama
wiley +1 more source
Preliminary results on interstellar reddening as deduced from filter photometry [PDF]
, 1972 Filter photometry has been used to derive the interstellar reddening law from stars through the study of a single spectral type, B0. The deficiency in the far ultraviolet flux of a supergiant relative to a main sequence star is compared with the ...
Laget, M.
core
The Astrophysical JournalWe present a uniform forward-modeling analysis of 90 late-M and L dwarfs in nearby young (∼10–200 Myr) moving groups, the Pleiades, and the Hyades using low-resolution ( R ≈ 150) near-infrared (0.9–2.4 μ m) spectra and the BT-Settl model atmospheres.
Spencer A. Hurt +7 more
doaj +1 more source
Cepheid Metallicity in the Leavitt Law (C–MetaLL) survey
Astronomy & AstrophysicsContext. The C-MetaLL project has provided homogeneous spectroscopic abundances of 290 Classical Cepheids (DCEPs) for which we have the intensity-averaged magnitudes in multiple optical and NIR bands, periods, pulsation modes, and Gaia parallaxes ...
Ripepi V. +10 more
doaj +1 more source
PhotoD with LSST: Stellar Photometric Distances Out to the Edge of the Galaxy
The Astronomical JournalAs demonstrated with the Sloan Digital Sky Survey (SDSS), Pan-STARRS, and most recently with Gaia data, broadband near-UV to near-IR stellar photometry can be used to estimate distance, metallicity, and interstellar dust extinction along the line of ...
Lovro Palaversa +16 more
doaj +1 more source
The first glimpse of a water ice absorption map in the Milky Way
Astronomy & AstrophysicsInterstellar ice plays a key role in the thermal evolution of the interstellar medium and in astrochemical pathways, yet its large-scale distribution remains poorly constrained. We use the Wide-field Infrared Survey Explorer (WISE) and the Two Micron All
Cao Zhetai, Jiang Biwei, Meingast Stefan
doaj +1 more source
Parametric SED Modelling of Protoplanetary Discs: Validation and Application to an Unstudied YSO
Physics and Astronomy ReportsWe present a physically motivated spectral energy distribution (SED) modelling framework for deriving stellar and circumstellar disc parameters from broadband photometry.
Volkan Bakış, Ayşe Yadikar Habalı
doaj +1 more source
, 2011 We have used broad-band near infrared photometry in combination with optical Johnson-Cousins photometry to study the dust properties in the line of sight to the Galactic globular cluster M4.
Hendricks, Benjamin
core