Skip to main content Accessibility help
×
Home
Hostname: page-component-cf9d5c678-p4zth Total loading time: 0.281 Render date: 2021-07-28T14:56:29.375Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

TT ARI–94: A Study of 1.6…60 Minute Variability

Published online by Cambridge University Press:  12 April 2016

I. L. Andronov
Affiliation:
Department of Astronomy, Odessa State University, T.G.Shevchenko Park, 270014 Odessa, Ukraine
K. Arai
Affiliation:
Kuki–Hokuyo Senior High School, Kuki Saitama, 346 Japan
L. L. Chinarova
Affiliation:
Department of Astronomy, Odessa State University, T.G.Shevchenko Park, 270014 Odessa, Ukraine
N. I. Dorokhov
Affiliation:
Department of Astronomy, Odessa State University, T.G.Shevchenko Park, 270014 Odessa, Ukraine
T. A. Dorokhov
Affiliation:
Department of Astronomy, Odessa State University, T.G.Shevchenko Park, 270014 Odessa, Ukraine
A. Dumitrescu
Affiliation:
Astronomical Institute of the Romanian Academy 75212 Bucharest 28, Romania
D. Nogami
Affiliation:
Department of Astronomy, Faculty of Science, Kyoto University, Oiwake–cho, Kitashirakawa Sakyo–ku, Kyoto 606–01, Japan
A. Lepardo
Affiliation:
Stazione Astronomica, 33047 Remanzacco (ud), via S.Stefano 31, Italy
P. A. Mason
Affiliation:
Case Western Reserve University, Department of Astronomy, Cleveland, OH 44106, USA
K. Matumoto
Affiliation:
Osaka Kyoiku University, B4–212, 698–1, asahigoaka chome kashiwara–shi, Osaka 582, Japan
G. Oprescu
Affiliation:
Astronomical Institute of the Romanian Academy 75212 Bucharest 28, Romania
G. Pajdosz
Affiliation:
Mt. Suhora Observatory, Pedagogical University, ul.Podchorązych 2, 30–084 Kraków, Poland
R. Passuelo
Affiliation:
Stazione Astronomica, 33047 Remanzacco (ud), via S.Stefano 31, Italy
L. Patkos
Affiliation:
Konkoly Observatory, P.O. Box 67, 1525 Budapest, Hungary
G. Sostero
Affiliation:
Stazione Astronomica, 33047 Remanzacco (ud), via S.Stefano 31, Italy
J. Tremko
Affiliation:
Astronomical Institute of the Slovak Academy of Sciences, 059 60 Tatranska Lomnica, Slovakia
S. Zola
Affiliation:
Mt. Suhora Observatory, Pedagogical University, ul.Podchorązych 2, 30–084 Kraków, Poland Astronomical Observatory, Jagiellonian University ul.Orla 171, 30–244 Kraków, Poland
Rights & Permissions[Opens in a new window]

Extract

We report photometric results from 44 runs at 11 observatories during the international campaign ‘TT Ari–94’. No coherent oscillations in the frequency range 10… 900 cycle d−1 are found. The highest peaks in the power spectrum cover the wide range of 28… 139 cycle d−1. Variations occur at a few preferred time-scales rather than at one cycle length, with a possible secular decrease. In the frequency range 90… 900 cycle d−1 the power spectrum obeys a power law with slope γ ranging from 0.8 to 2.6 for different runs.

TT Ari is one of the brightest cataclysmic variables and remains one of the most interesting objects of this class. It exhibits a variety of phenomena observed at time-scales from seconds to months. A recent detailed photometric study of this object and a bibliographical overview may be found in Tremko et al. (1996). Tremko et al. (1992, 1993, 1994) discuss aspects of the TT Ari–88 campaign. Our campaign TT Ari–94 was unprecedented, as the observations were longitude-dispersed, from Japan through Turkmenia, to Europe and the American continent. Moreover, our optical data on October 7 partially overlap with the HST observations obtained by Home & Welsh (1995, private communication). The numerical results of observations obtained during these nights are shown in Table 1.

Type
Non-Magnetic Cataclysmic Variables
Copyright
Copyright © Kluwer 1996

References

Andronov, I.L., 1990, Kinematics and Phys. Celest. Bodies (Kiev) 6, 87 Google Scholar
Andronov, I.L., 1994, Odessa Astron. Publ. 7, 49 Google Scholar
Eftmov, Yu.S., Shakhovskoy, N.M., Andronov, I.L., Kolesnikov, S.V., 1995, Izvestija Krim. Astrofiz. Obs., in pressGoogle Scholar
Semeniuk, I., Schwarzenberg–Czerny, A., Duerbeck, H., et al., 1987, A&SS, 130, 167 Google Scholar
Tremko, J., Andronov, I.L., Luthardt, R., et al., 1992, IBVS, 3763 Google Scholar
Tremko, J., Andronov, I.L., Chinarova, L.L., et al., 1993, in “Cataclysmic Variables and Related Physics”, eds Regev, O., Shaviv, G., Ann. Israel Phys. Soc., 10, 324 Google Scholar
Tremko, J., Andronov, I.L., Chinarova, L.L., et al., 1994, Odessa Astron. Publ., 7, 132 Google Scholar
Tremko, J., Andronov, I.L., Chinarova, L.L., et al., 1996, A&A, submittedGoogle Scholar
van der Klis, M., 1989, ARAA, 27, 517 CrossRefGoogle Scholar
You have Access

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

TT ARI–94: A Study of 1.6…60 Minute Variability
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

TT ARI–94: A Study of 1.6…60 Minute Variability
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

TT ARI–94: A Study of 1.6…60 Minute Variability
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *