Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/8420
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sharma, Rahul | - |
dc.contributor.author | Jain, Chetana | - |
dc.contributor.author | Paul, Biswajit | - |
dc.contributor.author | Dutta, Anjan | - |
dc.contributor.author | Rana, Vikram | - |
dc.date.accessioned | 2025-08-01T06:38:45Z | - |
dc.date.available | 2025-08-01T06:38:45Z | - |
dc.date.issued | 2025-07-10 | - |
dc.identifier.citation | The Astrophysical Journal, 2025, Vol.987, p117 | en_US |
dc.identifier.uri | http://hdl.handle.net/2289/8420 | - |
dc.description | Open Access | en_US |
dc.description.abstract | The detection and characterization of periodic X-ray signals are crucial for identifying new compact objects and studying the mechanisms powering their emission. We report on the timing and spectral variability of CXOU J204734.8+300105, a proposed eclipsing polar-type cataclysmic variable (CV) candidate. This source has been observed once with Chandra and twice with XMM-Newton, revealing several intriguing and conflicting features in its X-ray emission. The Chandra observation showed a periodicity of ∼6000 s with an eclipse-like feature. The X-ray light curve from the 2017 XMM-Newton observation showed a period of ∼2000 s without any apparent eclipse, while the simultaneous optical light curve from the Optical Monitor showed a period of ∼6000 s. This variability raises questions about the true nature of the source. Spectral analysis indicates a multicomponent emission and emission lines due to Fe. The spectral characteristics are consistent with those observed in other CV systems. Additionally, we identified optical and near-infrared counterparts from various catalogues. Our findings suggest a dynamic and evolving accretion environment of CXOU J204734.8+300105. | en_US |
dc.language.iso | en | en_US |
dc.publisher | IOP Publishing | en_US |
dc.relation.uri | https://ui.adsabs.harvard.edu/abs/2025arXiv250511322S/abstract | en_US |
dc.relation.uri | https://arxiv.org/abs/2505.11322 | en_US |
dc.relation.uri | https://inspirehep.net/literature/2922095 | en_US |
dc.relation.uri | https://doi.org/10.3847/1538-4357/addc5b | en_US |
dc.rights | 2025 The Authro(s) | en_US |
dc.title | Intriguing Nature of AM Her–type Candidate CXOU J204734.8+300105 | en_US |
dc.type | Article | en_US |
Appears in Collections: | Research Papers (A&A) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2025_ApJ_987_117.pdf Restricted Access | Open Access | 1.1 MB | Adobe PDF | View/Open Request a copy |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.