| low surface brightness | LSB | 75 | 6 | 2.001738 | 0203291,0203255,etc |
| kolmogorov smirnov | K-S | 20 | 6 | 2.000186 | 0203243,0203456,etc |
| star formation history | SFH | 117 | 6 | 2.003484 | 0203292,0203300,etc |
| colour magnitude diagram | CMD | 140 | 5 | 2.001452 | 0203077,0203292,etc |
| wide field planetary camera 2 | WFPC2 | 52 | 5 | 1.002373 | 0203131,0203391,etc |
| sunyaev zel'dovich | SZ | 142 | 5 | 2.004897 | 0203486,0203485,etc |
| charge transfer inefficiency | CTI | 20 | 5 | 1.000903 | 0203174,0203235,etc |
| signal to noise | S/N | 60 | 4 | 2.001247 | 0203286,0203461,etc |
| space telescope imaging spectrograph | STIS | 11 | 4 | 1.001122 | 0203437,0203063,etc |
| integrated sachs wolfe | ISW | 25 | 4 | 1.000991 | 0203413,0203430,etc |
| ultra luminous x ray source | ULX | 115 | 4 | 1.002843 | 0203176,0203175,etc |
| reflection grating spectrometer | RGS | 21 | 4 | 1.003292 | 0203312,0203396,etc |
| dwarf spheroidal | dSph | 86 | 4 | 2.001499 | 0203300,0203004,etc |
| instituto de astrofisica de andalucia | IAA | 8 | 4 | 1.000198 | 0203245,0203199,etc |
| broad emission line region | BLR | 14 | 4 | 1.000662 | 0203239,0203359,etc |
| soft gamma ray repeater | SGR | 83 | 3 | 1.017033 | 0203111,0203054,etc |
| double degenerate | DD | 46 | 3 | 2.00251 | 0203147,0203340,etc |
| optical transient | OT | 24 | 3 | 1.000797 | 0203391,0203245,etc |
| x ray luminosity function | XLF | 119 | 3 | 1.005457 | 0203176,0203407,etc |
| chandra x ray center | CXC | 9 | 3 | 1.000262 | 0203463,0203174,etc |
| kelvin helmholtz | KH | 8 | 3 | 1.000297 | 0203040,0203067,etc |
| inverse compton | IC | 13 | 3 | 1.000314 | 0203040,0203231,etc |
| friedmann robertson walker | FRW | 10 | 3 | 2.000578 | 0203430,0203153,etc |
| wolf rayet | WR | 225 | 3 | 2.004506 | 0203308,0203451,etc |
| ultra luminous infrared galaxy | ULIRG | 32 | 3 | 1.001834 | 0203068,0203318,etc |
| color magnitude | CMD | 14 | 3 | 2.001631 | 0203384,0203218,etc |
| hardness ratio | HR | 46 | 3 | 2.000841 | 0203070,0203335,etc |
| narrow line seyfert 1 galaxy | NLS1 | 9 | 3 | 1.000178 | 0203439,0203425,etc |
| tremaine weinberg | TW | 22 | 3 | 2.001454 | 0203381,0203380,etc |
| tully fisher | TF | 21 | 3 | 1.001917 | 0203117,0203143,etc |
| advanced ccd imaging spectrometer | ACIS | 77 | 3 | 2.001128 | 0203271,0203316,etc |
| wide field camera | WFC | 8 | 3 | 1.000396 | 0203224,0203296,etc |