| interstellar medium | ISM | 67 | 11 | 2.000908 | 9612022,9612180,etc |
| cold dark matter | CDM | 201 | 10 | 2.004071 | 9612202,9612222,etc |
| nasa/ipac extragalactic database | NED | 20 | 9 | 1.000598 | 9612038,9612041,etc |
| active galactic nucleus | AGN | 82 | 8 | 2.001491 | 9612150,9612239,etc |
| cosmic microwave background | CMB | 102 | 8 | 2.004126 | 9612020,9612202,etc |
| initial mass function | IMF | 91 | 7 | 2.003547 | 9612009,9612133,etc |
| ultraviolet imaging telescope | UIT | 69 | 6 | 2.002694 | 9612140,9612168,etc |
| spectral energy distribution | SED | 65 | 5 | 2.002593 | 9612038,9612164,etc |
| point spread function | PSF | 30 | 5 | 2.000664 | 9612009,9612048,etc |
| supernova | SN | 105 | 5 | 1.002156 | 9612133,9612154,etc |
| intracluster medium | ICM | 58 | 4 | 2.001883 | 9612022,9612032,etc |
| high resolution imager | HRI | 74 | 4 | 2.001441 | 9612048,9612055,etc |
| position sensitive proportional counter | PSPC | 104 | 4 | 1.002369 | 9612048,9612193,etc |
| gamma ray burst | GRB | 207 | 4 | 2.005765 | 9612150,9612191,etc |
| large magellanic cloud | LMC | 51 | 4 | 2.002076 | 9612168,9612126,etc |
| low surface brightness | LSB | 166 | 4 | 2.01231 | 9612186,9612005,etc |
| european southern observatory | ESO | 24 | 4 | 2.00153 | 9612193,9612072,etc |
| small magellanic cloud | SMC | 97 | 4 | 2.007494 | 9612239,9612098,etc |
| inverse compton | IC | 28 | 3 | 2.000875 | 9612231,9612001,etc |
| star formation rate | SFR | 49 | 3 | 2.003079 | 9612012,9612070,etc |
| solid state spectrometer | SSS | 31 | 3 | 1.000892 | 9612032,9612052,etc |
| australia telescope compact array | ATCA | 27 | 3 | 2.000405 | 9612080,9612234,etc |
| tully fisher | TF | 196 | 3 | 1.006718 | 9612240,9612072,etc |
| swedish eso submillimeter telescope | SEST | 28 | 3 | 2.001165 | 9612191,9612194,etc |
| particle mesh | PM | 21 | 3 | 1.001547 | 9612090,9612087,etc |
| big bang nucleosynthesis | BBN | 60 | 3 | 2.001026 | 9612146,9612085,etc |