Results 21 to 30 of about 4,651,873 (337)

Deliverable D32 Core indicators for the interconnection between short and long-distance transport networks ; projet 7FP CLOSER (Connecting LOng and Short-distance networks for Efficient Transport); September 2011 [PDF]

, 2011
The CLOSER project has been set to analyse the interfaces and interconnections between long distance transport networks and local/regional transport networks of all modes.
Eftithia, Nathanail, Adamos, G, Ruiz-Ayucar, E, Blanquart, Corinne, L'Hostis, Alain, Svedova, Z, Christiansen, P, Parra, L, Järvi, T   +8 more
core   +3 more sources

Astrophysical Distance Scale. VII. A Self-consistent, Multiwavelength Calibration of the Slopes and Relative Zero Points for the Run of Luminosity with the Color of Stars Defining the Tip of the Red Giant Branch

The Astronomical Journal, 2023
Given the recent successful launch of the James Webb Space Telescope, determining robust calibrations of the slopes and absolute magnitudes of the near- to mid-infrared tip of the red-giant branch (TRGB) will be essential to measuring precise ...
Barry F. Madore, Wendy L. Freedman, Kayla Owens   +2 more
doaj   +1 more source

Quantifying Uncertainties on the Tip of the Red Giant Branch Method

The Astronomical Journal, 2023
We present an extensive grid of numerical simulations quantifying the uncertainties in measurements of the tip of the red giant branch (TRGB). These simulations incorporate a luminosity function composed of 2 mag of red giant branch (RGB) stars leading ...
Barry F. Madore, Wendy L. Freedman, Kayla A. Owens, In Sung Jang   +3 more
doaj   +1 more source

Type II supernovae as distance indicators at near-IR wavelengths [PDF]

Monthly notices of the Royal Astronomical Society, 2018
Motivated by the advantages of observing at near-IR wavelengths, we investigate Type II supernovae (SNe II) as distance indicators at those wavelengths through the Photospheric Magnitude Method (PMM).
Ó. Rodríguez, Ó. Rodríguez, G. Pignata, M. Hamuy, M. Hamuy, A. Clocchiatti, A. Clocchiatti, M. Phillips, K. Krisciunas, N. Morrell, G. Folatelli, G. Folatelli, M. Roth, S. Castellón, I. Jang, Y. Apostolovski, P. L'opez, S. Marchi, R. Ram'irez, P. Sánchez, P. Sánchez   +20 more
semanticscholar   +1 more source

Multi-level analyses of distance education capacity, faculty members’ adaptation, and indicators of student satisfaction in higher education during COVID-19 pandemic

International Journal of Educational Technology in Higher Education, 2021
COVID-19 pandemic triggered distance education in higher education. Decisions such as isolation, social distancing and quarantine made by countries unexpectedly and suddenly forced face-to-face education to change to distance education within days.
Engin Karadağ, Ahmet Su, Hatice Ergin-Kocaturk   +2 more
semanticscholar   +1 more source

Coordinated JWST Imaging of Three Distance Indicators in a Supernova Host Galaxy and an Estimate of the Tip of the Red Giant Branch Color Dependence [PDF]

Astrophysical Journal
Boasting a 6.5 m mirror in space, JWST can increase by several times the number of supernovae (SNe) to which a redshift-independent distance has been measured with a precision distance indicator (e.g., tip of the red giant branch (TRGB) or Cepheids); the
Taylor J. Hoyt, In Sung Jang, W. Freedman, B. Madore, Abigail J. Lee, Kayla A. Owens   +5 more
semanticscholar   +1 more source

Drift Distance in Aircraft Glyphosate Application Using Rice Plants as Indicators [PDF]

Planta Daninha, 2020
: This study aimed to evaluate the potential for glyphosate drift during aerial application using rice plants as sentinels, aiming to determine the effect of drift on irrigated rice crops.
R.A. CÓRDOVA, M. TOMAZETTI, J.P. REFATTI, D. AGOSTINETTO, L.A. AVILA, E.R. CAMARGO   +5 more
doaj   +1 more source

Cepheids as distance indicators and stellar tracers [PDF]

The Astronomy and Astrophysics Review
We review the phenomenology of classical Cepheids (CCs), Anomalous Cepheids (ACs) and type II Cepheids (TIICs) in the Milky Way (MW) and in the Magellanic Clouds (MCs). We also examine the Hertzsprung progression in different stellar systems by using the
G. Bono, V. Braga, A. P. D. D. Fisica, Universita' di Roma Tor Vergata, Roma, Italy, I. Roma, M. Catone, I. A. d'Abruzzo, Teramo   +9 more
semanticscholar   +1 more source

THE CARNEGIE-CHICAGO HUBBLE PROGRAM. I. AN INDEPENDENT APPROACH TO THE EXTRAGALACTIC DISTANCE SCALE USING ONLY POPULATION II DISTANCE INDICATORS [PDF]

, 2016
We present an overview of the Carnegie-Chicago Hubble Program, an ongoing program to obtain a 3% measurement of the Hubble constant (H0) using alternative methods to the traditional Cepheid distance scale.
R. Beaton, W. Freedman, B. Madore, G. Bono, E. Carlson, G. Clementini, M. Durbin, A. Garofalo, D. Hatt, I. Jang, J. Kollmeier, M. Lee, A. Monson, J. Rich, V. Scowcroft, M. Seibert, L. Sturch, Soung-Chul Yang   +17 more
semanticscholar   +1 more source

CEPHEIDS AS DISTANCE INDICATORS: SOME CURRENT PROBLEMS

Odessa Astronomical Publications, 2017
A general review is given of the calibration of the Cepheid distance scale, with particular reference to its use in the determination of H0. Emphasis is placed on the advantage of using a galactic calibration of the Cepheid scale, rather than relying on ...
M. Feast
doaj   +1 more source