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MODELLING THE SOLAR TWIN 18 SCORPII

Redazione
(AGENPARL) – GARCHING (GERMANY), lun 25 gennaio 2021 First Author: Bazot, M.Instruments: HARPSProgramIDs: 183.D-0729BibCode: 2018A&A…619A.172B Context. Solar twins are objects of great interest in that they allow us to understand better how stellar evolution and structure are affected by variations of the stellar mass, age and chemical composition in the......
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STARS AND GAS IN THE MOST METAL-POOR GALAXIES – I. COS AND MUSE OBSERVATIONS OF SBS 0335-052E

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(AGENPARL) – GARCHING (GERMANY), sab 23 gennaio 2021 First Author: Wofford, AidaInstruments: MUSEProgramIDs: 096.B-0690BibCode: 2021MNRAS.500.2908W Among the nearest most metal-poor starburst-dwarf galaxies known, SBS 0335-052E is the most luminous in integrated nebular He II λ4686 emission. This makes it a unique target to test spectral synthesis models and spectral interpretation......
Agenparl English Difesa Scienza e Tecnologia Social Network

SOO LOCKS UPGRADING PARK’S LOCK MODEL DISPLAYS

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(AGENPARL) – WASHINGTON (DC), mar 19 gennaio 2021 DETROIT — Soo Locks visitors will see more than $100,000 in improved lock model displays in the coming years thanks to local partner support and the U.S. Army Corps of Engineers’ Handshake Partnership Program.  Currently, the park features two original 3-D models......
Agenparl English Educazione Scienza e Tecnologia Social Network

PRODUCTION OF MODIFIED SUNFLOWERS SEED SHELLS FOR THE REMOVAL OF BISPHENOL A

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), lun 18 gennaio 2021 In this present study, an abundant, available lignocellulosic biomass, sunflower seed shells, SSS, was used as a precursor to prepare an effective eco-adsorbent by treatment with H2SO4. A study of the surface characteristics of raw and acid-treated SSS (ACS) has shown......
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VOLUME UNCERTAINTY OF (7) IRIS SHAPE MODELS FROM DISC-RESOLVED IMAGES

Redazione
(AGENPARL) – GARCHING (GERMANY), dom 17 gennaio 2021 First Author: Dudzinski, G.Instruments: SPHEREProgramIDs: 199.C-0074BibCode: 2020MNRAS.499.4545D High angular resolution disc-resolved images of (7) Iris collected by VLT/SPHERE instrument are allowed for the detailed shape modelling of this large asteroid revealing its surface features. If (7) Iris did not suffer any events......
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DUST EMISSION, EXTINCTION, AND SCATTERING IN LDN 1642

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(AGENPARL) – GARCHING (GERMANY), sab 16 gennaio 2021 First Author: Juvela, MikaInstruments: HAWKIProgramIDs: 090.C-0603BibCode: 2020A&A…643A.132J Context. LDN 1642 is a rare example of a star-forming, high-latitude molecular cloud. The dust emission of LDN 1642 has already been studied extensively in the past, but its location also makes it a good......
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THE GAIA-ESO SURVEY: 3D NLTE ABUNDANCES IN THE OPEN CLUSTER NGC 2420 SUGGEST ATOMIC DIFFUSION AND TURBULENT MIXING ARE AT THE ORIGIN OF CHEMICAL ABUNDANCE VARIATIONS

Redazione
(AGENPARL) – GARCHING (GERMANY), sab 16 gennaio 2021 First Author: Semenova, EkaterinaInstruments: FLAMES, GIRAFFE, UVESProgramIDs: 188.B-3002, 193.B-0936BibCode: 2020A&A…643A.164S Context. Atomic diffusion and mixing processes in stellar interiors influence the structure and the surface composition of stars. Some of these processes cannot yet be modelled from the first principles, and they......
Agenparl English Economia Social Network

ANALYSIS OF FORECASTING MODELS IN AN ELECTRICITY MARKET UNDER VOLATILITY

Redazione
(AGENPARL) – METRO MANILA, gio 14 gennaio 2021 Short-term electricity price forecasting has received considerable attention in recent years. Despite this increased interest, the literature lacks a concrete consensus on the most suitable forecasting approach. We conduct an extensive empirical analysis to evaluate the short-term price forecasting dynamics of different regions......
Agenparl English Difesa Economia Scienza e Tecnologia Social Network

BOEING ANNOUNCES FOURTH-QUARTER DELIVERIES

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(AGENPARL) – SEATTLE (SEATTLE, WA), mar 12 gennaio 2021 CHICAGO, Jan. 12, 2021 /PRNewswire/ — The Boeing Company [NYSE: BA] announced today major program deliveries across its commercial and defense operations for the fourth quarter of 2020. “Through the global pandemic, we took meaningful steps to adapt to our new market,......
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EXPLORING THE M-DWARF LUMINOSITY-TEMPERATURE-RADIUS RELATIONSHIPS USING GAIA DR2

Redazione
(AGENPARL) – GARCHING (GERMANY), dom 10 gennaio 2021 First Author: Morrell, SamInstruments: OMEGACAMProgramIDs: 177.D-3023BibCode: 2019MNRAS.489.2615M There is growing evidence that M-dwarf stars suffer radius inflation when compared to theoretical models, suggesting that models are missing some key physics required to completely describe stars at effective temperatures less than about 4000......

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