Supersoft X-ray source: Difference between revisions

Revision as of 16:09, 11 March 2018

Revision as of 21:09, 26 May 2018

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Most highly magnetic WDs appear to be isolated objects, although G 23–46 (7.4 MG) and LB 1116 (670 MG) are in unresolved binary systems.<ref name=Barstow/>

RE J0317-853 is the hottest magnetic WD at 49,250 K, with an exceptionally intense magnetic field of ~340 MG, and implied rotation period of 725.4 s.<ref name=Barstow>{{ cite journal |display-authors=4|author=Barstow MA|author2=Jordan S|author3=O'Donoghue D|author4=Burleigh MR|author5=Napiwotzki R|author6=Harrop-Allin MK |title=RE J0317-853: the hottest known highly magnetic DA white dwarf |date=1995 |journal=MNRAS |volume=277 |issue=3 |pages=931–85 |bibcode=1995MNRAS.277..971B |doi = 10.1093/mnras/277.3.971 }}</ref> Between 0.1 and 0.4 keV, RE J0317-853 was detectable by ROSAT, but not in the higher energy band from 0.4 to 2.4 keV.{{cncitation needed|date=August 2017}}<!-- Someone said Fleming, TA (1995), Astronomy and Astrophysics, but that just doesn't exist--> RE J0317-853 is associated with a blue star 16 arcsec from LB 9802 (also a blue WD) but not physically associated.<ref name=Barstow/> A centered dipole field is not able to reproduce the observations, but an off-center dipole 664 MG at the south pole and 197 MG at the north pole does.<ref name=Barstow/>

Until recently (1995) only PG 1658+441 possessed an effective temperature > 30,000 K.<ref name=Barstow/> Its polar field strength is only 3 MG.<ref name=Barstow/>

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| date = December 1995

| title = RE J0317-853: the hottest known highly magnetic DA white dwarf

| url = http://adsabs.harvard.edu/abs/1995MNRAS.277..971B

| journal = MNRAS

| volume = 277