Results 61 to 70 of about 1,271 (117)

Magnetic field and unstable accretion during AM Herculis low states [PDF]

, 2000
A study of AM Her low states in September 1990 and 1991 and June-July 1997 is reported from a coordinated campaign with observations obtained at the Haute-Provence observatory, at the 6-m telescope of the Special Astrophysical Observatory and at the 2.6m
Andronov, I. L., Bonnet-Bidaud, J. M., de Martino, D., Kolesnikov, S. V., Kraicheva, Z., Mouchet, M., Shakhovskoy, N. M., Somov, N. N., Somova, T. A.   +8 more
core   +2 more sources

Superhumps in Cataclysmic Binaries. XXIII. V442 Ophiuchi and RX J1643.7+3402

, 2002
We report the results of long observing campaigns on two novalike variables: V442 Ophiuchi and RX J1643.7+3402. These stars have high-excitation spectra, complex line profiles signifying mass loss at particular orbital phases, and similar orbital periods
Berto Monard, Borisov G. V., Brian Martin, Casares J., Darragh O'Donoghue, David A. Harvey, David R. Skillman, de Jager O. C., Dickinson R. J., Edward Beshore, Frank J., Greg Bolt, Iping R. C., Jerry Foote, John R. Thorstensen, Joseph Patterson, Kraicheva Z., Kuijpers J., Lewis M. Cook, Matt Wood, Neil Butterworth, Osaki Y., Panos Niarchos, Pringle J. E., Robert Rea, Robert E. Fried, Smak J., Terquem C., Tonny Vanmunster, Uemura Y., Warner B., Whitehurst R., Wickramasinghe D. T., William H. Fenton, Woelk U.   +34 more
core   +1 more source

Study of the solar corona using radio and space observations [PDF]

The physics of coronal transients, the characteristics of radiation and accelerated particles at the time of flares, and the density/temperature structure of the transition region and corona and the coronal magnetic field are ...
Dulk, G. A.
core   +1 more source

Activity and magnetic fields on stars from radio observations [PDF]

Radio observations explain certain kinds of stellar activity and reliable estimates of magnetic field strengths are derived for the radio emitting regions.
Dulk, G. A.
core   +1 more source

The Origin of Soft X-rays in DQ Herculis

, 2003
DQ Herculis (Nova Herculis 1934) is a deeply eclipsing cataclysmic variable containing a magnetic white dwarf primary. The accretion disk is thought to block our line of sight to the white dwarf at all orbital phases due to its extreme inclination angle.
F. A. Ringwald, Herbig G. H., K. Mukai, Lloyd H. M., M. Still, Mewe R., Mewe R., Naylor T., Petitjean P., Slavin A. J., Wood J. H.   +10 more
core   +2 more sources

Laboratory analogue of a supersonic accretion column in a binary star system. [PDF]

Nat Commun, 2016
Cross JE, Gregori G, Foster JM, Graham P, Bonnet-Bidaud JM, Busschaert C, Charpentier N, Danson CN, Doyle HW, Drake RP, Fyrth J, Gumbrell ET, Koenig M, Krauland C, Kuranz CC, Loupias B, Michaut C, Mouchet M, Patankar S, Skidmore J, Spindloe C, Tubman ER, Woolsey N, Yurchak R, Falize É.   +24 more
europepmc   +1 more source

On the Material Ejected from Novae. [PDF]

Proc Natl Acad Sci U S A, 1942
Payne-Gaposchkin C, Gaposchkin S.
europepmc   +1 more source

Further observations of the lambda 10830 He line in stars and their significance as a measure of stellar activity [PDF]

Measurements of the lambda 1030 He line in 198 stars are given along with data on other features in that spectral range. Nearly 80% of all G and K stars show some lambda 10830; of these, half are variable and 1/4 show emission.
Zirin, H.
core   +1 more source

Notes on Binary Stars: V. The Determination by Least-Squares of the Elements of Spectroscopic Binaries. [PDF]

Proc Natl Acad Sci U S A, 1941
Sterne TE.
europepmc   +1 more source

An Expansion-Luminosity Relation for Novae. [PDF]

Proc Natl Acad Sci U S A, 1936
Zwicky F.
europepmc   +1 more source