Search for Interacting Winds in the WN7 + O Binary WR 22

WOLF-RAYET STARS; BINARY STARS; ASTROPHYSICS; ASTRONOMICAL SPECTROSCOPY; INTERSTELLAR GAS; LINE SPECTRA; STELLAR ORBITS; ASTRONOMICAL OBSERVATORIES; ORBITAL ELEMENTS; STELLAR MASS; SPECTRUM ANALYSIS

Abstract :

[en] We present new spectroscopic observations of the He I Lambda5876 line in WR22 which were obtained around periastron. These data show strong line profile variability. We use recently determined orbital elements of WR22 to discuss the possibility of tidal interactions or of a colliding wind phenomenon affecting the outer parts of the Wolf-Rayet atmosphere.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Rauw, Grégor ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) - Sciences spatiales

Vreux, Jean-Marie ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO)

Gosset, Eric ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)

Language :

English

Title :

Search for Interacting Winds in the WN7 + O Binary WR 22

Publication date :

01 December 1996

Audience :

International

Main work title :

Revista Mexicana de Astronomia y Astrofisica Conference Series

Pages :

108

Additional URL :

http://adsabs.harvard.edu/abs/1996RMxAC...5..108R

Available on ORBi :

since 02 July 2009

Statistics

Number of views

45 (0 by ULiège)

Number of downloads

4 (0 by ULiège)

More statistics

Scopus citations^®

Scopus citations^®
without self-citations

Bibliography

Conti, P. S., Niemela, V. S., & Walborn, N. R. 1979, ApJ, 228, 206
Friend, D. B., & Castor, J. I. 1982, ApJ, 261, 293
Gayley, K. G., Owocki, S. P., & Cranmer, S. R. 1996, in Colliding Winds in Binary Stars, ed. V. Niemela & N. Morrell, RevMexAASC, 5, 68
Gosset, E., Remy, M., Manfroid, J., Vreux, J.-M., Balona, L. A., Sterken, C., & Franco, G. A. P. 1991, IBVS, 3571, 1
Hamann, W.-R., Dünnebeil, G., Koesterke, L., Schmutz, W., & Wessolowski, U. 1991, A&A, 249, 443
Moffat, A. F. J., & Seggewiss, W. 1978, A&A, 70, 69
Owocki, S. P., & Gayley K. G. 1995, ApJ, 454, L145
Rauw, G., Vreux, J.-M., Gosset, E., Hutsemékers, D., & Magain, P. 1995, in 32nd Liège Int. Astroph. Coll., Stellar Evolution: What Should Be Done, ed. A. Noels, D. Fraipont, M. Gabriel, N. Grevesse, P. Demarque, 463
Rauw, G., Vreux, J.-M., Gosset, E., Hutsemékers, D., Magain, P., & Rochowicz, K. 1996, A&A, 306, 771
van der Hucht, K. A., Hidayat, B., Admiranto, A. G., Supelli, K. R., & Doom, C. 1988, A&A, 199, 217