Academic Journal
Gamma-ray Eclipses and Orbital Modulation Transitions in the Candidate Redback 4FGL J1702.7-5655 ...
| العنوان: | Gamma-ray Eclipses and Orbital Modulation Transitions in the Candidate Redback 4FGL J1702.7-5655 ... |
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| المؤلفون: | Corbet, Robin, Chomiuk, L., Coley, J.B., Dubus, G., Edwards, P.G., Islam, N., McBride, V.A., Stevens, J., Strader, J., Swihart, S.J., Townsend, L.J. |
| بيانات النشر: | Maryland Shared Open Access Repository |
| سنة النشر: | 2022 |
| المجموعة: | DataCite Metadata Store (German National Library of Science and Technology) |
| الوصف: | Observations with the Fermi Large Area Telescope (LAT) of the gamma-ray source 4FGL J1702.7-5655, previously classified as a candidate millisecond pulsar, show highly-significant modulation at a period of 0.2438033 days (~ 5.85 hours). Further examination of the folded light curve indicates the presence of narrow eclipses, suggesting this is a redback binary system. An examination of the long-term properties of the modulation over 13 years of LAT observations indicates that the orbital modulation of the gamma-rays changed from a simple eclipse before early 2013, to a broader, more easily detected, quasi-sinusoidal modulation. In addition, the time of the eclipse shifts to ~0.05 later in phase. This change in the orbital modulation properties is, however, not accompanied by a significant overall change in gamma-ray flux or spectrum. The quasi-sinusoidal component peaks ~0.5 out of phase with the eclipse, which would indicate inferior conjunction of the compact object in the system. Swift X-ray Telescope ... |
| نوع الوثيقة: | article in journal/newspaper text |
| اللغة: | English |
| DOI: | 10.13016/m22chh-2bq7 |
| الاتاحة: | https://dx.doi.org/10.13016/m22chh-2bq7 https://mdsoar.org/handle/11603/24540 |
| Rights: | Creative Commons Attribution Non Commercial No Derivatives 4.0 International ; Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ; This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. ; https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode ; cc-by-nc-nd-4.0 |
| رقم الانضمام: | edsbas.548200B4 |
| قاعدة البيانات: | BASE |
| DOI: | 10.13016/m22chh-2bq7 |
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