Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Photometric and spectral studies of the eclipsing polar CRTS CSS081231 J071126+440405

Photometric and spectral studies of the eclipsing polar CRTS CSS081231 J071126+440405 We present the results of the study of the eclipsing polar CRTS CSS081231 J071126+440405. Photometric observations allowed us to refine the orbital period of the system $$P_ \circ = 0_ \cdot ^d 0.08137673$$ . Considerable changes in the appearance of the object’s spectra have occurred over the period of September 20–21, 2001: the slope of the continuum changed from “red” to “blue”, and the variability of the line profiles over the duration of the orbital period has also changed. Doppler maps have shown a shift of the emission line-forming region along the accretion stream closer to the white dwarf. We measured the duration of the eclipse of the system and imposed constraints on the inclination angle $$78_ \cdot ^ \circ 7 < i < 79_ \cdot ^ \circ 3$$ . The derived radial velocity amplitude was used to obtain the basic parameters of the system: M 1 = 0.86 ± 0.08M ⊙, M 2 = 0.18 ± 0.02 M ⊙, q = 0.21 ± 0.01, R L2 = 0.20 ± 0.03 R ⊙, A = 0.80 ± 0.03 R ⊙. The spectra of the object exhibit cyclotron harmonics. Their comparison with model spectra allowed us to determine the parameters of the accretion column: B = 31–34 MG, T e = 10–12 keV, θ = 80–90°, and Λ = 105. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Astrophysical Bulletin Springer Journals

Photometric and spectral studies of the eclipsing polar CRTS CSS081231 J071126+440405

Loading next page...
 
/lp/springer-journals/photometric-and-spectral-studies-of-the-eclipsing-polar-crts-css081231-ywITHFp5xe

References (3)

Publisher
Springer Journals
Copyright
Copyright © 2016 by Pleiades Publishing, Ltd.
Subject
Physics; Astronomy, Astrophysics and Cosmology
ISSN
1990-3413
eISSN
1990-3421
DOI
10.1134/S1990341316010119
Publisher site
See Article on Publisher Site

Abstract

We present the results of the study of the eclipsing polar CRTS CSS081231 J071126+440405. Photometric observations allowed us to refine the orbital period of the system $$P_ \circ = 0_ \cdot ^d 0.08137673$$ . Considerable changes in the appearance of the object’s spectra have occurred over the period of September 20–21, 2001: the slope of the continuum changed from “red” to “blue”, and the variability of the line profiles over the duration of the orbital period has also changed. Doppler maps have shown a shift of the emission line-forming region along the accretion stream closer to the white dwarf. We measured the duration of the eclipse of the system and imposed constraints on the inclination angle $$78_ \cdot ^ \circ 7 < i < 79_ \cdot ^ \circ 3$$ . The derived radial velocity amplitude was used to obtain the basic parameters of the system: M 1 = 0.86 ± 0.08M ⊙, M 2 = 0.18 ± 0.02 M ⊙, q = 0.21 ± 0.01, R L2 = 0.20 ± 0.03 R ⊙, A = 0.80 ± 0.03 R ⊙. The spectra of the object exhibit cyclotron harmonics. Their comparison with model spectra allowed us to determine the parameters of the accretion column: B = 31–34 MG, T e = 10–12 keV, θ = 80–90°, and Λ = 105.

Journal

Astrophysical BulletinSpringer Journals

Published: Mar 25, 2016

There are no references for this article.