Magnetic CV
Catalog
MAGNETIC CATACLYSMIC VARIABLES (CVs)
What is a Magnetic CV? Magnetic cataclysmic variables (CVs) are binary star systems that contain a white dwarf with a magnetic field that is strong enough to control the accretion flow from a late type Roche-lobe secondary. Late type secondaries are cooler stars with spectral types such as K and M.
This site contains the catalogue of the known Magnetic CVs.
CLASSIFICATIONS
Each magnetic cataclysmic variable binary (mCV) is categorized as either a polar or an intermediate polar (IP). The polars are further divided the disjoint sub-classes of synchronous polars (P), asynchronous polars (AP), and the low luminosity/pre-polars (LP) also known as Low Accretion-Rate Polars (LARPs).
The intermediate polars are divided into the normal IPs (IP), the transitional IPs (TIP), and the low-luminosity IPs (LIP). Several polars and intermediate polars have been the site of a novae eruption, designated by N and/or dwarf novae eruptions, designated by DN in the catalog.
The disjoint sets, as defined for this catalog, are described as follows:
This is an observational database with links and detailed information of known Magnetic CVs.
P = Synchronous Polars
These polars have a white dwarf spin period that is equal to the binary orbital period. This is because the white dwarf's magnetic field is strong enough to synchronous the white dwarf's rotation to the binary orbit.
AP = Asynchronous Polars
These polars have a white dwarf spin period that are up to a few percent different (longer or shorter) than the binary orbital period. These are probable only temporary APs as they all are moving towards synchronization.
LP = Low Accretion Rate Polars/ Pre-Polars
These polars show evidence for strong magnetic fields but very low level accretion and some may be evolving to become polars for the first time. The latter are called pre-polars.
IP = Intermediate Polars
The white dwarf magnetic field is not strong enough to disrupt the accretion disk in nearly all of the intermediate polars. The white dwarf spin period often spins much faster than the binary orbital period. This is due to mass accretion from the disk along the magnetic field lines that results in the spin-up of the white dwarf.
LIP = Low Luminosity Intermediate Polars
These IPs accrete at a much lower rates than the normal IPs.
TIP = Transitional Intermediate Polars
These IPs are undergoing a transition from an IP to a polar. They have white dwarf rotation rates that are not too different than their orbital periods. They are the only IPs to have magnetic fields similar to polars, as measured by polarization and some TIPs, accrete by a stream rather than a disk or combination of a disk and stream.
RRIP = Rapidly Rotation Intermediate Polars
These IPs are defined as being those with a white dwarf spin period of less than 4 minutes. This makes them potentially related to propeller binaries, especially AE Aqr, which eject much of the material transferred from the donor star out of the binary system, rather than being accreted onto the white dwarf.
UPDATING
CONTINUOUSLY
Additional Filtering
Name | Other Name | Right Ascension (RA) | Declination (DEC) | Orbital Period (hr) | WD Spin Period (hr) | Distance (pc) | WD Mass (Solar Units) | Magnetic Field (mg) | Optical (V) | Finder Chart |
|---|---|---|---|---|---|---|---|---|---|---|
J000511.8+6340 | 3XMM J000511.8+634018 | 00h 05m 11.86s | +63° 40' 18.55" | 2.225 | 2.225 | 3943.9 |  | |||
V479 And | SDSS J001856.93+345444.3 | 00h 18m 56.93s | +34° 54' 44.23" | 14.258 | 14.258 | 2027.9 | 1.25 | 17.1 |  | |
EQ Cet | 1RXS J012851.9-233931, RBS 206 | 01h 28m 52.54s | -23° 39' 43.96" | 1.547 | 1.547 | 283.3 | 45, 34 | 17.6 |  | |
CV Hyi | RX J0132.7-6554; 1RXS J013242.8-655434 | 01h 32m 43.38s | -65° 54' 37.30" | 1.297 | 1.297 | 550 | 68 |  | ||
BL Hyi | H 0139-68, 2 EUVE J0140-67.8 | 01h 41m 00.40s | -67° 53' 27.47" | 1.894 | 1.894 | 129.3 | 0.71 | 23 | 17.2 |  |
J0154-5947 | RX J0154.0-5947; 1RXS J014100.4-675332 | 01h 54m 00.93s | -59° 47' 49.10" | 1.482 | 1.482 | 321.1 | 0.75 | 15.8 |  | |
FL Cet | 1RXS J015543.3+002817; SDSSp J015543+002807 | 01h 55m 43.40s | +00° 28' 07.16" | 1.452 | 1.452 | 317.59 | 0.5 | 29 | 18.6 |  |
AI Tri | RX J0203.8+2959; 1RXS J020348.7+295921 | 02h 03m 48.62s | +29° 59' 25.90" | 4.602 | 4.602 | 513.06 | 38 | 15.8 |  | |
BS Tri | RX J0209.4+2832; 1RXS J020928.9+283243 | 02h 09m 29.81s | +28° 32' 29.15" | 1.605 | 1.605 | 277.12 | 17.9 |  | ||
Gaia 18aot | 2RXS J021106.6+305426 | 02h 11m 07.99s | +30° 54' 6.96" | 1.892 | 1.892 | 517.92 |  | |||
J0227+1306 | 2MASS J02273286+1306172 | 02h 24m 32.87s | +13° 06’ 17.08” | 3.787 | 3.787 | 486.27 | 0.67 | 38, 18 | 17.8 |  |
CW Hyi | RBS0324; 1RXS J023052.9-684203 | 02h 30m 51.15s | -68° 42’ 05.44” | 3.03 | 3.03 | 543.21 | 13 | 17.5 |  | |
WW Hor | EXO 023432-5232.3; 1RXS J023610.9-521910 | 02h 36m 11.44s | -52° 19’ 13.94” | 1.925 | 1.925 | 333.62 | 1.1 | 25 | 19.5 |  |
PT Per | 3XMM J024251.2+564131 | 02h 42m 51.20s | +56° 41’ 31.25” | 1.35 | 1.35 | 180.14 | 0.7 | 27, 25 | 18.3 |  |
J0257+3337 | SDSS J025737.74+333750.5; J0257+3337 | 02h 57m 37.75s | +33° 37’ 50.52” | 1.5 | 1.5 | 736.49 | 18.8 |  | ||
J0303+0054 | US 3566; 2MASS J03030835+0054438 | 03h 03m 08.36s | +00° 54’ 43.93” | 3.227 | 3.227 | 120.4 | 0.84 | 17.4 |  | |
EF Eri | 2A 0311-227; RX J0314.2-2236 | 03h 14m 13.25s | -22° 35’ 42.92” | 1.35 | 1.35 | 160.26 | 0.9 | 21, 17 | 18.2 |  |
J0328+0522 | CRTS J032855.0+052253; SDSS J032855.00+052254.1 | 03h 28m 55.02s | +05° 22’ 54.17” | 2.033 | 2.033 | 968.92 | 0.75 | 39 | 19.9 |  |
VY For | EXO 0329-2606; For1; EUVE J0332-25.9 | 03h 32m 04.61s | -25° 56’ 55.06” | 3.806 | 3.806 | 580.85 | 18.7 |  | ||
UZ For | EXO 033319-2554.2; RX J0335.4-2544 | 03h 35m 28.65s | -25° 44’ 21.77” | 2.109 | 2.109 | 238.1 | 0.7 | 75, 53 | 16.6 |  |
J035011+3232 | CRTS CSS091218 J035011+323230; CSS0350+3232 | 03h 50m 10.71s | +32° 32’ 29.60” | 2.372 | 2.372 | 647.3 | 0.948 | 16.75-19.5 |  | |
J0425-5714 | EUVE J0425.6-5714: Dor; RX J0425.6-5714 | 04h 25m 38.61s | -57° 14’ 36.21” | 1.43 | 1.43 | 548 | 50 | 17.1 |  | |
IW Eri | RBS 0541; 1RXS J042555.8-194534 | 04h 25m 55.19s | -19° 45’ 30.49” | 1.452 | 1.452 | 366.06 | 19.8 |  | ||
RS Cae | 1RXS J045325.2-421335; RE J0453-42 | 04h 53m 25.55s | -42° 13’ 39.63” | 1.702 | 1.702 | 1408.42 | 36 | 18.5-20.5 |  | |
HY Eri | 1RXS J050146.2-035927 | 05h 01m 46.40s | -03° 59’ 20.54” | 2.855 | 2.855 | 1890.51 | 0.42 | 30, 28 | 20.2 |  |
J0502.8+1624 | RX J0502.8+1624; Tau 4; 1RXS J050250.6+16242 | 05h 02m 50.95s | +16° 24’ 21.84” | 3.106 | 3.106 | 217.08 | 18.8 |  | ||
V1309 Ori | Ori 1; RX J0515+0104 | 05h 15m 41.41s | +01° 04’ 40.81” | 7.983 | 7.983 | 638.1 | 0.7 | 61 | 15.7 |  |
J0528+2838 | RXS J052832.5+283824; IPHAS J0528+2838 | 05h 28m 32.68s | +28° 38' 37.73" | 224.2 | 16.4 |  | ||||
UW Pic | RX J0531-4624; 1RXS J053136.3-462406 | 05h 31m 35.65s | -46° 24' 04.96" | 2.223 | 2.223 | 289.36 | 15.9 |  | ||
BY Cam | H 0538+608; SWIFT J0542.6+6051 | 05h 42m 48.80s | +60° 51' 31.38" | 3.354 | 3.291 | 264.54 | 0.76 | 41, 28 | 15.0 |  |
J0600-2709 | [BTR99] J060033.2-270919; 1RXS J060033.1-270918 | 06h 00m 33.29s | -27° 09’ 18.89” | 1.284 | 1.284 | 1218.78 | 0.75 | 20 | 19.5 |  |
J0614-2725 | MASTER OT J061451.70-272535.5 | 06h 14m 51.72s | -27° 25’ 35.42” | 2.079 | 2.079 | 1129.53 | 0.68 |  | ||
J0649.8-0737 | RX J0649.8-0737, Mon | 06h 49m 50.92s | -07° 37’ 40.89” | 4.347 | 4.347 | 581.4 | 0.8 | 44 | 17.1 |  |
J0658-1744 | PBC J0658.0-1746; [FS2003] 0404; 2MASS J06580591-1744249 | 06h 58m 05.91s | -17° 44’ 24.97” | 2.379 | 2.379 | 208.2 | 0.6 | 10 | 16.7 |  |
LW Cam | RX J0704.2+6203; 1RXS J070409.2+620330 | 07h 04m 10.03s | +62° 03’ 27.94” | 1.621 | 1.621 | 548.55 | 24, 20 | 17.7 |  | |
J0706+0325 | SWIFT J0706.8+0325; PPMXL 3189652360374206258 | 07h 06m 48.93s | +03° 24’ 47.33” | 1.704 | 1.704 | 206.24 | 17.1 |  | ||
V808 Aur | CRTS J071126.0+440405; 2MASS J07112601+4404051 | 07h 11m 26.01s | +44° 04’ 05.10” | 1.953 | 1.953 | 213.32 | 0.86 | 51, 38 | 16.8 |  |
HS Cam | RX J0719.2+6557; 1RXS J071913.4+655734 | 07h 19m 14.52s | +65° 57’ 44.31” | 1.637 | 1.637 | 437.95 | 0.85 | 18.8 |  | |
V654 Aur | SDSSp J072910+365838; AAVSO 0722+37 | 07h 29m 10.69s | +36° 58’ 38.24” | 2.496 | 2.496 | 1344.46 | 20.0 |  | ||
J0733+2619 | RXS J073346.0+261933; SDSS J073346.27+261926.2 | 07h 33m 46.27s | +26° 19’ 26.30” | 3.202 | 3.202 | 1334.44 | 18.3 |  | ||
J0749-0549 | RX J0749.1-0549; 1RXS J074909.8-054933 | 07h 49m 10.40s | -05° 49’ 25.46” | 3.672 | 3.672 | 1218.39 | 0.85 | 43.5 | 17.9 |  |
EU Lyn | SDSS J075240.45+362823.2; 2XMM J075240.4+362822 | 07h 52m 40.45s | +36° 28’ 23.22” | 2.736 | 2.736 | 631.54 | 20.0 |  | ||
V516 Pup | RX J0803-4748; 2MASS J08034562-474844 | 08h 03m 45.60s | -47° 48’ 44.15” | 2.285 | 2.285 | 456.36 | 39 | 18.2 |  | |
J0810+0024 | CSS J0810+0024; CRTS CSS100108 J081031+002429 | 08h 10m 30.61s | +00° 24’ 28.50” | 1.936 | 1.936 | 1830.91 | 20.0 |  | ||
VV Pup | 1E 0812-1854; 1RXS J081506.7-190310 | 08h 15m 06.80s | -19° 03’ 17.77” | 1.674 | 1.674 | 135.26 | 0.73 | 56, 31.5 | 16.0 |  |
EG Lyn | 1RXS J082051+493433; RBS 0696 | 08h 20m 51.08s | +49° 34’ 31.79” | 1.656 | 1.656 | 870.38 | 20.3 |  | ||
J0837+3830 | SDSS J083751.00+383012.5, CRTS J083750.9+383013 | 08h 37m 51.01s | +38° 30’ 12.59” | 3.18 | 3.18 | 1066.13 | 65 | 18.9 |  | |
J0838-2827 | 1RXS J083842.1-282723; DWV2017 J0838.8 X1 | 08h 38m 43.35s | -28° 27’ 01.14” | 1.64 | 1.58 | 156 | 17.7 |  | ||
J0846+2453 | SDSS J084617.11+245344.1; CRTS J084617.1+245343 | 08h 46m 17.11s | +24° 43’ 44.09” | 4.64 | 4.51 | 1232.49 | 18.8 |  | ||
J0850+0443 | ZTF18aczehur, eFEDS J085037.2+044359 | 08h 50m 37.20s | +04° 43’ 57.00” | 1.72 | 1.72 | 1000 | 0.81 |  | ||
EU Cnc | M67-186; RX J085127+11467 | 08h 51m 27.18s | +11° 46’ 57.00” | 2.09 | 2.09 | 2358.76 | 0.83 | 41 | 20.4 |  |
FR Lyn | 1ES 0851+39.2; EUVE J0854+390 | 08h 54m 14.02s | +39° 05’ 37.35” | 1.888 | 1.888 | 478.45 | 44 | 19.2 |  | |
J0859+0536 | RX J0859.1+0537; SDSS J085909.18+0536 | 08h 59m 09.18s | +05° 36’ 54.59” | 2.397 | 2.397 | 440.87 | 0.61 | 35, 20 | 18.1 |  |
J0921+2038 | CRTS J092122.8+203858; SDSS J092122.83+203857.0 | 09h 21m 22.84s | +20° 38’ 57.09” | 1.404 | 1.404 | 705.95 | 32 | 20.4 |  | |
HU Leo | 2MASS J09244446+0801510; SDSS J092444.48+080150.9 | 09h 24m 44.48s | +08° 01’ 51.00” | 2.187 | 2.187 | 550.75 | 18.8 |  | ||
HS 0922+1333 | CRTS J092455.9+132052 | 09h 24m 55.93s | +13° 20’ 52.19” | 4.04 | 4.04 | 163.93 | 0.71 | 81, 66 | 16.5 |  |
J0926+0105 | eFEDS J092614.1+010558; ZTF J0926+0105 | 09h 26m 14.10s | +01° 05’ 58.00” | 0.8 | 42, 36 |  | ||||
MN Hya | CRTS J092455.9+132052; Hya 4 | 09h 29m 07.03s | -24° 05’ 05.42” | 3.39 | 3.39 | 630.49 | 0.58 | 20 | 17.2 |  |
J0953+1457 | RX J0953.1+1458; 1RXS J095308.6+145841 | 09h 53m 08.20s | +14° 58’ 36.44” | 1.721 | 1.721 | 410.99 | 0.63 | 30 | 18.5 |  |
J1002-1925 | 1RXS J100211.4-192534; RE J1002-19 | 10h 02m 11.73s | -19° 25’ 37.27” | 1.666 | 1.666 | 847.57 | 0.82 | 33 | 17.7 |  |
J1007-2017 | RX J1007.5-2017; RE J1007-20 | 10h 07m 34.65s | -20° 17’ 32.65” | 3.477 | 3.477 | 712.6 | 94 | 18.0 |  | |
GG Leo | RX J1007.5-2017; 1RXS J100734.4-201731; RBS0842 | 10h 15m 34.68s | +09° 04’ 41.99” | 1.331 | 1.331 | 258.07 | 1.13 | 23 | 18.4 |  |
V381 Vel | RX J1016.9-4103; 1RXS J101659.4-41033 | 10h 16m 59.01s | -41° 03’ 44.24” | 490.863 | 17.6 |  | ||||
WX LMi | HS 1023+3900; SDSS J102627.48+384502.4 | 10h 26m 27.49s | +38° 45’ 02.66” | 2.328 | 2.328 | 96.78 | 0.71 | 70, 61 | 16.3 |  |
IL Leo | SDSS J103100.55+202832.1 | 10h 31m 00.56s | +20° 28’ 32.34” | 1.37 | 1.37 | 524.94 | 42 | 19.3 |  | |
FH UMa | RX J1047.1+6335; RBS0904; 1RXS J104710.3+633522 | 10h 47m 09.88s | +63° 35’ 13.60” | 1.336 | 1.336 | 590 | 20 | 18.8 |  | |
EK UMa | 1E 1048.5+5421; RX J1051.5+5404; RBS 911 | 10h 51m 35.16s | +54° 04’ 36.11” | 1.909 | 1.909 | 753.86 | 47 | 18.9 |  | |
J1059+2727 | SDSS J105905.07+272755.5 | 10h 59m 05.07s | +27° 27’ 55.42” | 895.17 | 57 | 20.4 |  | |||
AN UMa | 2XMM J110425.7+450313; 2E 1101.5+4519 | 11h 04m 25.66s | +45° 03’ 13.94” | 1.914 | 1.914 | 333.42 | 1 | 36, 29 | 16.6 |  |
ST LMi | WD 1102+253; SDSS J110539.77+250628.6; CW 1103+254 | 11h 05m 39.77s | +25° 06’ 28.75” | 1.898 | 1.898 | 114.23 | 0.76 | 21, 12 | 16.2 |  |
AR UMa | 1ES 1113+43.2; RX J1115.6+4258; CSO 1153 | 11h 15m 44.59s | +42° 58’ 22.43” | 1.932 | 1.932 | 98.62 | 240, 160< | 16.2 |  | |
DP Leo | 1ES 1113+43.2; RX J1115.6+4258; CSO 1153 | 11h 17m 15.92s | +17° 57’ 41.69” | 1.497 | 1.497 | 320.31 | 0.71 | 59, 30.5 | 18.6 |  |
V1033 Ce | RX J1141.3-6410; PBC J1141.2-6409 | 11h 41m 22.74s | -64° 10’ 14.36” | 3.156 | 3.156 | 265.09 | 30 | 14.8 |  | |
EU UMa | RX J1149.9+2844; EUVE J1149+28.7 | 11h 49m 55.70s | +28° 45’ 07.30” | 1.502 | 1.502 | 286.94 | 1.2 | 43 | 18.9 |  |
J1206+5100 | SDSS J120615.73+510047.0; WD 1203+512 | 12h 06m 15.74s | +51° 00’ 47.22” | 3.784 | 3.784 | 301.59 | 0.21 | 108 | 18.6 |  |
V379 Vir | WD 1209+018; SDSS J121209.30+013627.7 | 12h 12m 9.31s | +01° 36’ 27.77” |