| low surface brightness | LSB | 117 | 9 | 2.003663 | 0011227,0011041,etc |
| kolmogorov smirnov | K-S | 38 | 8 | 1.000809 | 0011255,0011572,etc |
| inverse compton | IC | 114 | 6 | 2.002888 | 0011301,0011357,etc |
| proportional counter unit | PCU | 23 | 6 | 1.000539 | 0011418,0011542,etc |
| reflection grating spectrometers | RGS | 47 | 5 | 1.001075 | 0011307,0011574,etc |
| all sky monitor | ASM | 53 | 5 | 2.002165 | 0011418,0011305,etc |
| proportional counter array | PCA | 36 | 5 | 2.001033 | 0011418,0011371,etc |
| ministry for university and research | MURST | 5 | 5 | 1.000033 | 0011455,0011389,etc |
| magneto hydrodynamic | MHD | 44 | 4 | 2.001783 | 0011465,0011122,etc |
| large velocity gradient | LVG | 19 | 4 | 1.000947 | 0011331,0011582,etc |
| wolf rayet | WR | 57 | 4 | 2.001463 | 0011582,0011497,etc |
| reflection grating spectrometer | RGS | 30 | 4 | 1.001463 | 0011487,0011167,etc |
| horizontal air showers | HAS | 43 | 3 | 2.001195 | 0011490,0011414,etc |
| smooth particle hydrodynamics | SPH | 13 | 3 | 1.001762 | 0011158,0011236,etc |
| greisen zatsepin kuzmin | GZK | 36 | 3 | 2.001034 | 0011106,0011320,etc |
| european photon imaging camera | EPIC | 22 | 3 | 2.000908 | 0011193,0011159,etc |
| science analysis system | SAS | 10 | 3 | 2.000262 | 0011193,0011038,etc |
| synchrotron self compton | SSC | 12 | 3 | 1.000421 | 0011475,0011356,etc |
| space telescope imaging spectrograph | STIS | 30 | 3 | 2.00399 | 0011269,0011153,etc |
| high resolution imager | HRI | 30 | 3 | 1.002949 | 0011159,0011027,etc |
| center for astrophysics | CfA | 10 | 3 | 1.00142 | 0011332,0011567,etc |
| science analysis software | SAS | 7 | 3 | 1.000122 | 0011487,0011026,etc |
| narrow line seyfert 1 | NLS1 | 38 | 3 | 2.001061 | 0011167,0011389,etc |
| coud'e auxiliary telescope | CAT | 3 | 3 | 1.000122 | 0011562,0011024,etc |
| long duration balloon | LDB | 26 | 3 | 2.00058 | 0011381,0011378,etc |
| colour magnitude diagram | CMD | 23 | 3 | 2.000234 | 0011280,0011285,etc |
| blue compact dwarf | BCD | 82 | 3 | 2.002039 | 0011227,0011098,etc |
| high surface brightness | HSB | 5 | 3 | 1.00036 | 0011227,0011164,etc |
| warm ionized medium | WIM | 19 | 3 | 2.000258 | 0011556,0011319,etc |
| press schechter | PS | 12 | 3 | 1.001009 | 0011129,0011180,etc |
| position velocity | PV | 12 | 3 | 1.000703 | 0011071,0011349,etc |
| cold neutral medium | CNM | 17 | 3 | 1.000213 | 0011319,0011318,etc |
| warm neutral medium | WNM | 9 | 3 | 1.000092 | 0011319,0011318,etc |
| intra cluster medium | ICM | 12 | 3 | 1.000974 | 0011454,0011186,etc |