| proportional counter array | PCA | 466 | 63 | 1.588675 | 9801168,9801251,etc |
| low surface brightness | LSB | 1067 | 48 | 1.441607 | 9801102,9801124,etc |
| all sky monitor | ASM | 389 | 46 | 1.480347 | 9801168,9801007,etc |
| high resolution imager | HRI | 638 | 40 | 1.701429 | 9801317,9801238,etc |
| faint object spectrograph | FOS | 367 | 34 | 1.853767 | 9801136,9801302,etc |
| kolmogorov smirnov | KS | 169 | 33 | 1.212562 | 9801137,9801051,etc |
| burst and transient source experiment | BATSE | 377 | 33 | 1.547231 | 9801168,9801043,etc |
| rosat all sky survey | RASS | 248 | 29 | 1.414983 | 9803175,9803248,etc |
| tully fisher | TF | 950 | 27 | 1.744508 | 9801256,9801307,etc |
| signal to noise | S/N | 124 | 25 | 1.440368 | 9803175,9803208,etc |
| high surface brightness | HSB | 316 | 24 | 1.584812 | 9801102,9801124,etc |
| sunyaev zel'dovich | SZ | 609 | 24 | 1.794928 | 9801099,9801175,etc |
| inverse compton | IC | 451 | 23 | 2.0024 | 9803237,9803020,etc |
| wide field camera | WF | 181 | 21 | 1.763095 | 9801086,9801051,etc |
| black hole candidate | BHC | 225 | 18 | 2.001116 | 9802339,9802242,etc |
| full width half maximum | FWHM | 86 | 18 | 1.33394 | 9803327,9803140,etc |
| goddard high resolution spectrograph | GHRS | 154 | 18 | 1.445001 | 9803215,9803148,etc |
| wolf rayet | WR | 716 | 18 | 1.728465 | 9803065,9803005,etc |
| wide field planetary camera 2 | WFPC2 | 191 | 16 | 1.438397 | 9802167,9802088,etc |
| friedmann robertson walker | FRW | 92 | 15 | 1.134081 | 9804062,9804150,etc |
| period luminosity | PL | 214 | 14 | 1.504006 | 9801242,9801093,etc |
| high energy x ray timing experiment | HEXTE | 113 | 14 | 1.144577 | 9804173,9804228,etc |
| three dimensional | 3D | 72 | 13 | 1.154935 | 9802235,9802004,etc |
| planetary camera | PC | 180 | 13 | 2.000429 | 9802117,9802184,etc |
| synchrotron self compton | SSC | 117 | 13 | 1.616869 | 9804102,9804198,etc |
| dwarf spheroidal | dSph | 162 | 12 | 2.001212 | 9801047,9801072,etc |
| optical transient | OT | 146 | 12 | 2.001544 | 9801320,9801169,etc |
| broad emission line region | BLR | 151 | 12 | 1.752195 | 9803044,9803183,etc |
| standard cold dark matter | SCDM | 53 | 12 | 1.3339 | 9804086,9804015,etc |
| particle mesh | PM | 64 | 12 | 1.416982 | 9806238,9806255,etc |
| nasa extragalactic database | NED | 44 | 11 | 1.636973 | 9801086,9801024,etc |
| wide field cameras | WFC | 28 | 11 | 1.000601 | 9802098,9802078,etc |
| narrow field instruments | NFI | 52 | 11 | 1.182395 | 9802157,9802222,etc |
| low energy concentrator spectrometer | LECS | 135 | 11 | 1.638925 | 9802157,9802018,etc |
| japan society for promotion of science | JSPS | 13 | 11 | 1.000053 | 9802245,9802167,etc |
| space telescope imaging spectrograph | STIS | 134 | 11 | 1.365246 | 9806036,9806339,etc |
| blue compact dwarf | BCD | 260 | 10 | 1.602999 | 9801016,9801217,etc |
| large area detector | LAD | 25 | 10 | 1.000356 | 9806229,9806010,etc |
| x ray luminosity function | XLF | 144 | 10 | 1.502914 | 9807240,9807026,etc |
| smooth particle hydrodynamics | SPH | 37 | 9 | 1.000581 | 9801047,9801025,etc |
| proportional counter unit | PCU | 29 | 9 | 1.222462 | 9803267,9803278,etc |
| colour magnitude diagram | CMD | 183 | 9 | 1.668541 | 9804071,9804321,etc |
| eso imaging survey | EIS | 171 | 9 | 2.001739 | 9807336,9807156,etc |
| wide field and planetary camera 2 | WFPC2 | 27 | 8 | 1.000174 | 9801086,9801112,etc |
| power density spectrum | PDS | 210 | 8 | 1.752088 | 9802177,9802103,etc |
| dwarf elliptical | dE | 100 | 8 | 1.256004 | 9803001,9803031,etc |
| point response function | PRF | 28 | 8 | 1.25059 | 9804201,9804200,etc |
| eso multi mode instrument | EMMI | 9 | 8 | 1.000091 | 9805041,9805024,etc |
| dwarf irregular | dI | 210 | 8 | 2.002059 | 9806092,9806304,etc |
| low resolution imaging spectrometer | LRIS | 40 | 7 | 1.429278 | 9801063,9801056,etc |
| particle physics and astronomy research council | PPARC | 10 | 7 | 1.000045 | 9801179,9801283,etc |
| gamma ray burst monitor | GRBM | 33 | 7 | 1.00074 | 9802157,9802341,etc |
| two dimensional | 2D | 52 | 7 | 1.286443 | 9802004,9802144,etc |
| post asymptotic giant branch | post-AGB | 120 | 7 | 2.000475 | 9803313,9803327,etc |
| eso slice project | ESP | 183 | 7 | 2.002194 | 9805253,9805195,etc |
| gas imaging spectrometer | GIS | 92 | 6 | 1.333908 | 9801204,9801168,etc |
| low mass x ray binaries | LMXB | 99 | 6 | 1.001016 | 9801219,9801252,etc |
| auto correlation function | ACF | 26 | 6 | 1.00008 | 9802351,9802103,etc |
| phoswich detector system | PDS | 58 | 6 | 1.334215 | 9803129,9803291,etc |
| high pressure gas scintillation proportional counter | HPGSPC | 19 | 6 | 1.000499 | 9803129,9803291,etc |
| line of sight velocity distribution | LOSVD | 72 | 6 | 1.667121 | 9803307,9803053,etc |
| hubble deep field south | HDF-S | 50 | 6 | 1.501811 | 9804027,9804018,etc |
| power density spectra | PDS | 161 | 6 | 2.001954 | 9804268,9804135,etc |
| star formation history | SFH | 137 | 6 | 2.002413 | 9805268,9805284,etc |
| integrated sachs wolfe | ISW | 40 | 6 | 1.334722 | 9806116,9806362,etc |
| ultraviolet imaging telescope | UIT | 102 | 6 | 1.668511 | 9807343,9807265,etc |
| press schechter | PS | 167 | 6 | 2.004107 | 9807277,9807148,etc |
| cam interactive analysis | CIA | 12 | 6 | 1.000279 | 9808137,9808344,etc |
| maximum likelihood | ML | 51 | 6 | 1.333753 | 9810079,9810392,etc |
| intra cluster medium | ICM | 17 | 6 | 1.000226 | 9811080,9811045,etc |
| solid state imaging spectrometer | SIS | 122 | 5 | 1.604627 | 9801204,9801168,etc |
| turn off | TO | 89 | 5 | 2.001992 | 9803134,9803115,etc |
| low resolution imaging spectrograph | LRIS | 39 | 5 | 1.000742 | 9804333,9804005,etc |
| color magnitude | CM | 66 | 5 | 2.000255 | 9804069,9804286,etc |
| center of excellence | COE | 5 | 5 | 1.000061 | 9807022,9807016,etc |
| adaptive optics bonnette | AOB | 42 | 5 | 1.401508 | 9810140,9810250,etc |
| accretion disk corona | ADC | 49 | 5 | 1.401516 | 9810139,9810185,etc |
| charge transfer efficiency | CTE | 10 | 4 | 1.000067 | 9801321,9801190,etc |
| compact symmetric objects | CSO | 24 | 4 | 1.501532 | 9801304,9801040,etc |
| science verification phase | SVP | 40 | 4 | 1.001139 | 9802069,9802067,etc |
| palomar green | PG | 185 | 4 | 2.006138 | 9802217,9802148,etc |
| hertzsprung russell | HR | 15 | 4 | 1.500269 | 9803134,9803005,etc |
| medium energy concentrator spectrometers | MECS | 71 | 4 | 2.001442 | 9803129,9803015,etc |
| gigahertz peaked spectrum | GPS | 204 | 4 | 1.506409 | 9803140,9803104,etc |
| narrow field instrument | NFI | 15 | 4 | 1.001012 | 9804241,9804191,etc |
| low surface brightness galaxies | LSB | 71 | 4 | 1.002236 | 9804049,9804121,etc |
| chemically peculiar | CP | 114 | 4 | 2.007823 | 9805149,9805039,etc |
| present day mass function | PDMF | 37 | 4 | 1.50157 | 9805307,9805291,etc |
| open cdm model | OCDM | 18 | 4 | 1.500099 | 9805168,9805078,etc |
| cloud in cell | CIC | 8 | 4 | 1.000034 | 9806238,9806255,etc |
| low luminosity agn | LLAGN | 55 | 4 | 2.000653 | 9806006,9806200,etc |
| greisen zatsepin kuzmin | GZK | 30 | 4 | 1.500665 | 9806283,9806264,etc |
| hopkins ultraviolet telescope | HUT | 36 | 4 | 1.500856 | 9806286,9806056,etc |
| total variation diminishing | TVD | 23 | 4 | 1.500617 | 9807003,9807228,etc |
| short wavelength spectrometer | SWS | 24 | 4 | 1.500772 | 9808313,9808101,etc |
| the red giant branch | TRGB | 41 | 4 | 1.501892 | 9808116,9808001,etc |
| very high energy | VHE | 145 | 4 | 2.004722 | 9810209,9810187,etc |
| wise observatory | WO | 12 | 4 | 1.50008 | 9810275,9810269,etc |
| extended red emission | ERE | 55 | 4 | 1.505697 | 9811353,9811354,etc |
| extended emission line regions | EELR | 73 | 3 | 2.002876 | 9801063,9801249,etc |
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