| active galactic nucleus | AGN | 470 | 23 | 2.003437 | 9908211,9908259,etc |
| interstellar medium | ISM | 136 | 14 | 1.000948 | 9908065,9908285,etc |
| cold dark matter | CDM | 232 | 13 | 2.006147 | 9908168,9908005,etc |
| cosmic microwave background | CMB | 135 | 13 | 2.002833 | 9908289,9908061,etc |
| point spread function | PSF | 102 | 12 | 2.001174 | 9908052,9908164,etc |
| hubble space telescope | HST | 95 | 10 | 2.001277 | 9908052,9908210,etc |
| spectral energy distribution | SED | 181 | 10 | 2.002042 | 9908304,9908083,etc |
| initial mass function | IMF | 264 | 10 | 2.004979 | 9908005,9908285,etc |
| nasa/ipac extragalactic database | NED | 11 | 10 | 1.000041 | 9908292,9908090,etc |
| star formation rate | SFR | 156 | 9 | 2.004036 | 9908005,9908286,etc |
| supernova | SN | 488 | 8 | 2.006876 | 9908324,9908046,etc |
| gamma ray burst | GRB | 161 | 7 | 2.005041 | 9908044,9908097,etc |
| white dwarf | WD | 115 | 7 | 1.001437 | 9908005,9908226,etc |
| supernova remnant | SNR | 108 | 7 | 2.002265 | 9908271,9908109,etc |
| gamma ray bursts | GRB | 178 | 6 | 2.010185 | 9908126,9908190,etc |
| large magellanic cloud | LMC | 139 | 6 | 1.002314 | 9908044,9908200,etc |
| infrared space observatory | ISO | 116 | 6 | 2.004882 | 9908322,9908065,etc |
| broad line region | BLR | 33 | 6 | 1.000423 | 9908089,9908347,etc |
| kolmogorov smirnov | K-S | 24 | 6 | 1.000601 | 9908131,9908143,etc |
| asymptotic giant branch | AGB | 230 | 5 | 2.00575 | 9908320,9908065,etc |
| color magnitude diagram | CMD | 30 | 5 | 2.000462 | 9908041,9908317,etc |
| period luminosity | PL | 75 | 5 | 1.000944 | 9908014,9908149,etc |
| wide field and planetary camera 2 | WFPC2 | 35 | 5 | 2.00117 | 9908200,9908048,etc |
| infrared | IR | 86 | 5 | 2.001403 | 9908312,9908235,etc |
| very large array | VLA | 16 | 4 | 2.000505 | 9908052,9908067,etc |
| ultraviolet | UV | 122 | 4 | 2.00333 | 9908324,9908084,etc |
| inverse compton | IC | 67 | 4 | 1.002194 | 9908126,9908032,etc |
| tully fisher | TF | 112 | 4 | 2.001977 | 9908159,9908075,etc |
| hubble deep field | HDF | 21 | 4 | 1.002096 | 9908346,9908270,etc |
| space telescope imaging spectrograph | STIS | 93 | 4 | 2.006376 | 9908137,9908018,etc |
| planetary camera | PC | 46 | 4 | 2.000551 | 9908351,9908203,etc |
| near infrared | NIR | 21 | 4 | 1.001 | 9908089,9908163,etc |
| massive compact halo object | MACHO | 15 | 4 | 1.000628 | 9908270,9908160,etc |
| radio luminosity function | RLF | 11 | 4 | 1.001224 | 9908174,9908106,etc |
| burst and transient source experiment | BATSE | 79 | 4 | 2.007392 | 9908190,9908206,etc |
| full width at half maximum | FWHM | 20 | 4 | 1.000577 | 9908098,9908251,etc |
| wolf rayet | WR | 68 | 3 | 2.003901 | 9908309,9908065,etc |
| zero age main sequence | ZAMS | 31 | 3 | 1.004515 | 9908309,9908291,etc |
| planetary nebula | PN | 140 | 3 | 2.004712 | 9908320,9908065,etc |
| extensive air showers | EAS | 42 | 3 | 2.002058 | 9908202,9908193,etc |
| equation of state | EOS | 73 | 3 | 2.00123 | 9908274,9908291,etc |
| william herschel telescope | WHT | 6 | 3 | 1.00007 | 9908210,9908211,etc |
| main sequence | MS | 32 | 3 | 2.001102 | 9908005,9908207,etc |
| las campanas redshift survey | LCRS | 21 | 3 | 1.001767 | 9908075,9908339,etc |
| standard cold dark matter model | sCDM | 46 | 3 | 1.002313 | 9908061,9908332,etc |
| optical gravitational lensing experiment | OGLE | 39 | 3 | 1.001464 | 9908317,9908303,etc |
| monte carlo | MC | 33 | 3 | 2.000382 | 9908196,9908200,etc |
| intergalactic medium | IGM | 21 | 3 | 1.000779 | 9908288,9908151,etc |
| equivalent width | EW | 59 | 3 | 2.000833 | 9908260,9908016,etc |
| luminosity function | LF | 75 | 3 | 2.001971 | 9908244,9908251,etc |
| signal to noise ratio | S/N | 15 | 3 | 1.000889 | 9908265,9908119,etc |
| principal component analysis | PCA | 11 | 3 | 1.000161 | 9908347,9908016,etc |
| ultraluminous infrared galaxy | ULIRG | 322 | 3 | 2.008871 | 9908233,9908300,etc |
| polycyclic aromatic hydrocarbon | PAH | 94 | 3 | 2.003087 | 9908035,9908300,etc |