| 1 | advanced camera for surveys | ACS | 62 | 9 | 2.000755 | 0401570,0401483,etc |
| 2 | sunyaev zeldovich | SZ | 144 | 7 | 2.00567 | 0401340,0401191,etc |
| 3 | space telescope imaging spectrograph | STIS | 126 | 7 | 2.00233 | 0401469,0401226,etc |
| 4 | charge transfer inefficiency | CTI | 9 | 6 | 1.00015 | 0401165,0401592,etc |
| 5 | proportional counter array | PCA | 77 | 6 | 2.001706 | 0401465,0401205,etc |
| 6 | star formation history | SFH | 43 | 6 | 1.000916 | 0401427,0401387,etc |
| 7 | signal to noise | S/N | 35 | 6 | 2.000353 | 0401427,0401263,etc |
| 8 | inverse compton | IC | 76 | 6 | 1.001561 | 0401122,0401523,etc |
| 9 | the red giant branch | TRGB | 216 | 5 | 2.006162 | 0401098,0401092,etc |
| 10 | wolf rayet | WR | 264 | 5 | 2.011633 | 0401571,0401135,etc |
| 11 | kolmogorov smirnov | K-S | 14 | 5 | 1.00163 | 0401619,0401088,etc |
| 12 | wide field camera | WFC | 23 | 5 | 1.000429 | 0401025,0401374,etc |
| 13 | synchrotron self compton | SSC | 34 | 5 | 2.00047 | 0401356,0401271,etc |
| 14 | european photon imaging camera | EPIC | 40 | 4 | 1.001158 | 0401299,0401227,etc |
| 15 | black hole candidate | BHC | 62 | 4 | 2.002247 | 0401299,0401205,etc |
| 16 | blue compact dwarf | BCD | 34 | 4 | 2.000812 | 0401394,0401462,etc |
| 17 | ultra luminous x ray source | ULX | 35 | 4 | 2.002078 | 0401394,0401223,etc |
| 18 | supersymmetric | SUSY | 32 | 4 | 2.001824 | 0401565,0401511,etc |
| 19 | friends of friends | FoF | 5 | 4 | 1.000276 | 0401097,0401342,etc |
| 20 | kpno international spectroscopic survey | KISS | 406 | 4 | 2.00606 | 0401133,0401131,etc |
| 21 | advanced ccd imaging spectrometer | ACIS | 57 | 4 | 2.002722 | 0401592,0401377,etc |
| 22 | hubble deep field north | HDF-N | 10 | 4 | 1.001296 | 0401500,0401047,etc |
| 23 | turn off | TO | 30 | 4 | 1.003587 | 0401197,0401153,etc |
| 24 | intra cluster medium | ICM | 42 | 4 | 1.001782 | 0401462,0401576,etc |
| 25 | globular cluster system | GCS | 38 | 4 | 2.002471 | 0401610,0401218,etc |
| 26 | medium energy grating | MEG | 38 | 4 | 2.000352 | 0401226,0401583,etc |
| 27 | reflection grating spectrometer | RGS | 30 | 4 | 2.002374 | 0401327,0401328,etc |
| 28 | period luminosity | PL | 138 | 4 | 2.010353 | 0401273,0401211,etc |
| 29 | innermost stable circular orbit | ISCO | 29 | 4 | 1.000954 | 0401173,0401117,etc |
| 30 | low surface brightness | LSB | 19 | 4 | 2.00033 | 0401349,0401364,etc |
| 31 | astrophysical research consortium | ARC | 3 | 3 | 1.000097 | 0401098,0401249,etc |
| 32 | max planck institute for astronomy | MPIA | 3 | 3 | 1.000097 | 0401098,0401249,etc |
| 33 | full width half maximum | FWHM | 13 | 3 | 1.000265 | 0401051,0401139,etc |
| 34 | university of michigan radio astronomy observatory | UMRAO | 25 | 3 | 2.001075 | 0401627,0401271,etc |
| 35 | radio emitting x ray binary | REXB | 35 | 3 | 1.001574 | 0401516,0401514,etc |
| 36 | rosat all sky bright source catalog | RBSC | 32 | 3 | 2.00133 | 0401516,0401514,etc |
| 37 | wide field and planetary camera 2 | WFPC2 | 7 | 3 | 1.000066 | 0401373,0401399,etc |
| 38 | space interferometry mission | SIM | 3 | 3 | 1.000069 | 0401085,0401384,etc |
| 39 | mask exchange unit | MXU | 13 | 3 | 1.000506 | 0401500,0401218,etc |
| 40 | goddard high resolution spectrograph | GHRS | 48 | 3 | 2.001187 | 0401009,0401399,etc |
| 41 | high energy grating | HEG | 42 | 3 | 2.001018 | 0401226,0401583,etc |
| 42 | atacama large millimeter array | ALMA | 22 | 3 | 2.003535 | 0401402,0401073,etc |
| 43 | ultraviolet visual echelle spectrograph | UVES | 27 | 3 | 2.000956 | 0401102,0401030,etc |
| 44 | equations of state | EOSs | 120 | 3 | 1.005994 | 0401581,0401083,etc |
| 45 | particle physics and astronomy research council | PPARC | 3 | 3 | 1.000048 | 0401399,0401633,etc |
| 46 | semi analytic model | SAM | 16 | 3 | 2.000488 | 0401503,0401037,etc |
| 47 | colour magnitude diagram | CMD | 28 | 3 | 2.001851 | 0401004,0401418,etc |