An independent distance estimate to the AGB star R Sculptoris [PDF]
, 2017 For the carbon AGB star R Sculptoris, the uncertain distance significantly affects the interpretation of observations regarding the evolution of the stellar mass loss during and after the most recent thermal pulse.
Brunner, M. +3 more
core +2 more sources
The California-Kepler Survey. VII. Precise Planet Radii Leveraging Gaia DR2 Reveal the Stellar Mass Dependence of the Planet Radius Gap [PDF]
Astronomical Journal, 2018 The distribution of planet sizes encodes details of planet formation and evolution. We present the most precise planet size distribution to date based on Gaia parallaxes, Kepler photometry, and spectroscopic temperatures from the California-Kepler Survey.
B. Fulton, E. Petigura
semanticscholar +1 more source
Forward-modelling the luminosity, distance, and size distributions of the milky way satellites [PDF]
Monthly notices of the Royal Astronomical Society, 2021 We use GRUMPY, a simple regulator-type model for dwarf galaxy formation and evolution, to forward model the dwarf galaxy satellite population of the Milky Way (MW) using the Caterpillar zoom-in simulation suite.
V. Manwadkar, A. Kravtsov
semanticscholar +1 more source
SMASH 1 : A VERY FAINT GLOBULAR CLUSTER DISRUPTING in the OUTER REACHES of the LMC? [PDF]
, 2016 We present the discovery of a very faint stellar system, SMASH 1, that is potentially a satellite of the Large Magellanic Cloud. Found within the Survey of the Magellanic Stellar History (SMASH), SMASH 1 is a compact (rh=9.1-3.4+5.9pc) and very low ...
Belokurov V. +27 more
core +5 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
doaj +1 more source
HZ HER: STELLAR RADIUS FROM X-RAY ECLIPSE OBSERVATIONS, EVOLUTIONARY STATE, AND A NEW DISTANCE [PDF]
, 2014 Observations of HZ Her/Her X-1 by the Rossi X-Ray Timing Explorer (RXTE) covering high state eclipses of the neutron star are analyzed here. Models of the eclipse are used to measure the radius and atmospheric scale height of HZ Her, the stellar ...
Denis A. Leahy, M. H. Abdallah
semanticscholar +1 more source
Galactic reddening in 3D from stellar photometry – an improved map [PDF]
, 2018 We present a new 3D map of interstellar dust reddening, covering three quarters of the sky (declinations of δ ≳ −30°) out to a distance of several kiloparsecs. The map is based on high-quality stellar photometry of 800 million stars from Pan-STARRS 1 and
G. Green +15 more
semanticscholar +1 more source
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
doaj +1 more source
A Direct Stellar Metallicity Determination in the Disk of the Maser Galaxy NGC4258 [PDF]
, 2013 We present the first direct determination of a stellar metallicity in the spiral galaxy NGC4258 (D=7.6 Mpc) based on the quantitative analysis of a low-resolution (~5 AE) Keck LRIS spectrum of a blue supergiant star located in its disk.
Bresolin, Fabio +6 more
core +3 more sources
STELLAR METALLICITY OF THE EXTENDED DISK AND DISTANCE OF THE SPIRAL GALAXY NGC 3621 [PDF]
, 2014 Low resolution (∼4.5 Å) ESO VLT/FORS spectra of blue supergiant stars are analyzed to determine stellar metallicities (based on elements such as iron, titanium, and magnesium) in the extended disk of the spiral galaxy, NGC 3621.
R. Kudritzki +4 more
semanticscholar +1 more source