On the Nature of the Binary Components of RX J0806.3+1527
| dc.creator | Reinsch, K. | |
| dc.creator | Burwitz, V. | |
| dc.creator | Schwarz, R. | |
| dc.date | 2004-02-19 | |
| dc.date.accessioned | 2026-07-07T02:12:20Z | |
| dc.date.available | 2026-07-07T02:12:20Z | |
| dc.description | We present imaging circular polarimetry and near-infrared photometry of the suspected ultra-short period white-dwarf binary RX J0806.3+1527 obtained with the ESO VLT and discuss the implications for a possible magnetic nature of the white dwarf accretor and the constraints derived for the nature of the donor star. Our V-filter data show marginally significant circular polarization with a modulation amplitude of ~0.5% typical for cyclotron emission from an accretion column in a magnetic field of order 10 MG and not compatible with a direct-impact accretor model. The optical to near-infrared flux distribution is well described by a single blackbody with temperature kT_bb = 35000 K and excludes a main-sequence stellar donor unless the binary is located several scale heights above the galactic disk population. | |
| dc.description | 2 pages including 2 figures. To appear in RevMexAA(SC) Conference Series, Proc. of IAU Colloquium 194 `Compact Binaries in the Galaxy and Beyond', La Paz (Mexico), eds. G. Tovmassian & E. Sion | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0402458 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0402458 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/7420 | |
| dc.subject | Astrophysics | |
| dc.title | On the Nature of the Binary Components of RX J0806.3+1527 | |
| dc.type | text |