Results 91 to 100 of about 720,446 (211)

Dynamic Imprints of Colliding-wind Dust Formation from WR 140

The Astrophysical Journal Letters
Carbon-rich Wolf–Rayet (WR) binaries are a prominent source of carbonaceous dust that contribute to the dust budget of galaxies. The “textbook” example of an episodic dust-producing WR binary, WR 140 (HD 193793), provides us with an ideal laboratory for ...
Emma P. Lieb, Ryan M. Lau, Jennifer L. Hoffman, Michael F. Corcoran, Macarena Garcia Marin, Theodore R. Gull, Kenji Hamaguchi, Yinuo Han, Matthew J. Hankins, Olivia C. Jones, Thomas I. Madura, Sergey V. Marchenko, Hideo Matsuhara, Florentin Millour, Anthony F. J. Moffat, Mark R. Morris, Patrick W. Morris, Takashi Onaka, Marshall D. Perrin, Armin Rest, Noel Richardson, Christopher M. P. Russell, Joel Sanchez-Bermudez, Anthony Soulain, Peter Tuthill, Gerd Weigelt, Peredur M. Williams   +26 more
doaj   +1 more source

Wind variations of wolf-rayet stars [PDF]

International Astronomical Union Colloquium, 1999
AbstractWhat distinguishes WR stars from most of their progenitor phases is their dense winds, that often completely hide their small hydrostatic cores. Thus, to learn about these cores, which are especially important in an evolutionary context, we are generally limited to studying the winds only.
openaire   +1 more source

ON THE EVOLUTION OF WOLF-RAYET STARS IN CLOSE BINARY SYSTEMS

Odessa Astronomical Publications, 2017
The statistical study of the mass ratios of the components and eccentricities of close binary systems was made. Relations between these characteristics are obtained.
A. M. Cherepashchuk, V. G. Karetnikov
doaj   +1 more source

Disentangling the Spectroscopic Signatures of Clumping and Corotating Interaction Regions in the Wolf–Rayet Star WR 6

The Astrophysical Journal
Wolf–Rayet (WR) winds exhibit variability driven by small-scale clumping and large-scale corotating interaction regions (CIRs), but their interplay remains uncertain.
André-Nicolas Chené
doaj   +1 more source

Carbonaceous dust grains seen in the first billion years of cosmic time. [PDF]

Nature, 2023
Witstok J, Shivaei I, Smit R, Maiolino R, Carniani S, Curtis-Lake E, Ferruit P, Arribas S, Bunker AJ, Cameron AJ, Charlot S, Chevallard J, Curti M, de Graaff A, D'Eugenio F, Giardino G, Looser TJ, Rawle T, Rodríguez Del Pino B, Willott C, Alberts S, Baker WM, Boyett K, Egami E, Eisenstein DJ, Endsley R, Hainline KN, Ji Z, Johnson BD, Kumari N, Lyu J, Nelson E, Perna M, Rieke M, Robertson BE, Sandles L, Saxena A, Scholtz J, Sun F, Tacchella S, Williams CC, Willmer CNA.   +41 more
europepmc   +1 more source

General overview of Wolf-Rayet stars

, 2015
Although we all use the name Wolf-Rayet to refer to specific groups of stars, “Wolf-Rayet” per se is really an astrophysical phenomenon of fast-moving, hot plasma, normally expanding around a hot star.
Moffat, Anthony F. J.
core  

Radiation-driven acceleration in the expanding WR140 dust shell. [PDF]

Nature, 2022
Han Y, Tuthill PG, Lau RM, Soulain A.
europepmc   +1 more source

On the Atmospheres of the Wolf-Rayet Stars [PDF]

Symposium - International Astronomical Union, 1957
In 1945 we showed[1] from a study of six Wolf-Rayet stars that their spectrophotometric temperatures, when allowance is made for interstellar reddening, are still far below the temperatures as determined by the Zanstra method. It was demonstrated that these spectrophotometric temperatures (which are only slightly in excess of those of Ao stars) agree ...
openaire   +1 more source

A near–infrared survey for Galactic Wolf-Rayet stars

, 2002
Initial results, techniques, and rationale for a near–infrared survey of evolved emission–line stars towards the Galactic Center are presented. We use images taken through narrow-band emission–line and continuum filters to select candidates for ...
P. S. Conti, R. D. Blum, A. Damineli, N. L. Homeier   +3 more
core   +1 more source

Neutrino communication, intergalactic transit, and Astrobiology. [PDF]

Bioinformation, 2022
Shapshak P.
europepmc   +1 more source