====== Cataclysmic variables ======


^Name                   ^Period      ^Pdot      ^d          ^m2,min     ^q          ^M1        ^i     ^Mv       ^V         ^RA             ^DEC            ^l         ^b         |
^                       ^[s]         ^[s/s]     ^[pc]       ^Msun       ^           ^Msun      ^[deg] ^         ^          ^[h:m:s]        ^[d:m:s]        ^[deg]     ^[deg]     |
|[[#SBSS 1108+5704]]    |  3318  | Not measured |        |         | 0.086 |                   |64-77 |      |19.2 |11 08 | +57 4   | | |
|[[#V485 Cen]]          |  3542 | Not measured |        | 0.14    | 0.38 | >0.7      |20-30| | 15.04| 12 57 23.30| -33 12 06.8|304.36| +29.65|
|[[#EI Psc]]            |  3850  |  Not measured | 210 (+110,-70)  | 0.13 | 0.18 |  0.7 | 47 | 10 | 16.2 | 23 29 54.30 | +06 28 10.9 | 89.54 | -51.04 |
|[[#SDSS J1507+5230]]   |  4034  |  Not measured |       |         |      |      |  >80 |  | 18.1 | 15 07 22.3 | +52 30 40 |  |  |
|[[#GW Lib]]            |  4607  |  Not measured |       |         |      |      |      |  | 18.5 | 15 19 55.5 | -25 00 25 |  |  |
|[[#WZ Sge]]            |  4920  |  Not Measured | 43(8) |  <0.11  |      | >0.7 |  ~80 |  | 15.5 |  20 07 36.53 | +17 42 15.3 | 57.54 | -7.93 |
|[[#SDSS J0903+3300]]   |  5104  |  Not measured |       |         |      |      | >80  |  | 18.8 |   09 03 50.7 | +33 00 36 |  |  |

===== SBSS 1108+5704 ==

Very short period CV. It has obviously high helium-abundance so may be a transition object between CVs and AM CVn stars. Note however that its mass ratio is a fair bit higher than one would expect a bona fide AM CVn to have at the same orbital period, so it should be a stronger GW sources as a result. This one shows outbursts; the mag (g) is the quiescent value from SDSS. Paper Carter et al 2013 (TRM)

===== V485 Cen ==

Little studied. Only [[ADS>1996A&A...311..889A|Augusteijn et al. (1996)]]. Vmag is in quiescence. (PJG)
===== EI Psc =====

Unusual system with an evolved and still quite hot mass donor star which is probably helium rich (i.e. potential
AM CVn progenitor) [[ADS>2002ApJ...567L..49T|Thorstensen et al (2002)]]. The masses and inclination are subject to the usual uncertainties associated with non-eclipsing cataclysmic variables. The Vmag is that for quiescence; in outburst the system is about 5 mags brighter (TRM).

===== SDSS J1507+5230 =====

An eclipsing cataclysmic variable that has evolved to below the orbital period minimum and is a potential AM CVn progenitor 
[[ADS>2005AJ....129.2386S|Szkody et al 2005]]. The magnitude given is in quiescence out of eclipse. (TRM)


===== GW Lib =====

ZZ Ceti (pulsating) white dwarf in a cataclysmic variable [[ADS>2004MNRAS.350..307V|van Zyl et al 2004]] (TRM).

===== WZ Sge =====

Distance quoted as priv comm from John Thorstensen in [[ADS>2003ApJ...592.1137S|Sion et al 2003]]\\ 
Masses derived from Doppler Tomography during the 2001 outburst [[ADS>2001ApJ...562L.145S|Steeghs et al 2001]]\\
The V mag is that for quiesence\\ 

===== SDSS J0903+3300 =====

Eclipsing cataclysmic variable from the SDSS [[ADS>2005AJ....129.2386S|Szkody et al 2005]]. Note that the period
quoted in [[ADS>2005AJ....129.2386S|Szkody et al 2005]] is too short (TRM).