Results 181 to 190 of about 430,768 (202)

The photometry and kinematics studies of NGC 2509 derived from Gaia DR3. [PDF]

Sci Rep
Ahmed NM, Tadross AL.
europepmc   +1 more source

Scattering of a Bessel Pincer Light-Sheet Beam on a Charged Particle at Arbitrary Size. [PDF]

Micromachines (Basel)
Zhang S, Chen S, Wei Q, Li R, Wei B, Song N.   +5 more
europepmc   +1 more source

A Faint Progenitor System for the Faint Supernova 2024vjm

Zimmerman E, Gal-Yam A, Groot P, Ofek E, Roestel Jv, Pastorello A, Valenti S, Ravi A, Chen P, Schulze S, Blagorodnova N, Wavasseur M, Gómez-Muñoz M, Tranin H, de Wet S, Leloudas G, Vreeswijk P, Kwok L, Schwab M, Jha S, Maguire K, Sand D, Stringer E, Kupfer T, Faran T, Anderson J, Andrews J, Andrews M, Badash A, Bloemen S, Bostroem K, Chen T, Valle MD, Dimitriadis G, Dong Y, Farah J, Gillanders J, Godson B, Gromadzki M, Hiramatsu D, Hoang E, Howell D, Janzen D, Kuncarayakti H, Li J, Lyman J, Maeda K, Magee M, Mehta D, Milligan A, Moran S, Ni YQ, O’Neill D, Pearson J, Pieterse D, Pignata G, Reguitti A, Reichart D, Retamal NM, Santos R, Scaringi S, Shrestha M, Srivastav S, Stoppa F, Subrayan B, Valerin G, Wang X, Wynn K, Yaron O, Zang W.   +69 more
europepmc   +1 more source

A binary merger product as the direct progenitor of a Type II-P supernova

Niu* Z, Sun* N, Zapartas* E, Souropanis D, Cui Y, Maund JR, Andrews JJ, Briel MM, Fraser M, Gossage S, Kruckow MU, Liotine C, Liu Z, Srivas PM, Teng E, Wang X, Yang Y, Liu J.   +17 more
europepmc   +1 more source

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Extinction and polarization of light by dust in the interstellar medium. Interstellar extinction curves

Astrofizika, 1986
A model of two-layer cylindrical interstellar dust grains is used to calculate the interstellar extinction curves in the visible and near infrared regions of the spectrum and the ratio R /sub V/ of the total to the selective extinction. It is assumed that the core of the two-layer grains consists of ''astronomical silicate'' and the mantle of dirty ice
V B Il'In
exaly   +2 more sources

Interstellar Dust Models: Extinction, Absorption and Emission

EAS Publications Series, 2009
The observational constraints on interstellar dust are summarized. A dust model, consisting of a mixture of amorphous silicate, graphite, and PAH material that reproduces the observed interstellar extinction, is described. It is used to calculate the infrared emission expected when such dust is heated by radiation with the spectrum of interstellar ...
B.T. Draine
openaire   +2 more sources

Modeling of interstellar extinction with composite dust grains

Astronomical and Astrophysical Transactions, 2002
A model of interstellar dust must satisfy two conditions: dust grains have to be of the reasonable structure and chemical composition and explain basic observations. The latter are the interstellar extinction law and the depletion of interstellar elements. In this work, a new model of composite dust grains is considered.
exaly   +2 more sources

Three-component dust models for interstellar extinction

Journal of Astrophysics and Astronomy, 2010
Interstellar extinction curves obtained from the ‘extinction without standard’ method were used to constrain the dust characteristics in the mean ISM (R V = 3.1), along the lines of sight through a high latitude diffuse molecular cloud towards HD 210121 (R
C Muthumariappan
exaly   +2 more sources

Three-dimensional maps of the interstellar dust extinction curve within the Milky Way galaxy

Science
Interstellar dust grains cause extinction (absorption and scattering) of light from background astronomical sources. The spectral shape of the extinction curve depends on the dust composition. We used low-resolution optical spectra to measure the extinction curve of 130 million stars. By inverting these data, we mapped the extinction curve
Gregory M Green, Xiangyu Zhang
exaly   +3 more sources

Extinction and polarization of light by dust in the interstellar medium: Interstellar linear polarzation

Astrofizika, 1986
V B Il'In
exaly   +2 more sources