| cosmic microwave background | CMB | 203 | 17 | 2.00167 | 9808003,9808045,etc |
| active galactic nucleus | AGN | 210 | 16 | 2.001444 | 9808065,9808166,etc |
| initial mass function | IMF | 79 | 13 | 1.001428 | 9808313,9808032,etc |
| star formation rate | SFR | 70 | 11 | 2.001376 | 9808237,9808091,etc |
| cold dark matter | CDM | 304 | 11 | 2.004151 | 9808032,9808025,etc |
| interstellar medium | ISM | 52 | 9 | 2.000515 | 9808017,9808255,etc |
| large magellanic cloud | LMC | 80 | 9 | 2.001281 | 9808091,9808240,etc |
| spectral energy distribution | SED | 42 | 9 | 1.001166 | 9808337,9808316,etc |
| asymptotic giant branch | AGB | 70 | 7 | 1.002281 | 9808237,9808001,etc |
| nasa/ipac extragalactic database | NED | 10 | 7 | 1.000149 | 9808091,9808315,etc |
| proportional counter array | PCA | 54 | 7 | 2.001656 | 9808303,9808307,etc |
| very large array | VLA | 26 | 7 | 1.000305 | 9808041,9808266,etc |
| luminosity function | LF | 185 | 7 | 2.005213 | 9808193,9808287,etc |
| red giant branch | RGB | 140 | 6 | 2.00443 | 9808091,9808080,etc |
| gamma ray burst | GRB | 185 | 6 | 2.007073 | 9808342,9808184,etc |
| hubble space telescope | HST | 65 | 5 | 2.001414 | 9808282,9808032,etc |
| hubble deep field | HDF | 98 | 5 | 1.002468 | 9808282,9808003,etc |
| position angle | PA | 60 | 5 | 2.00154 | 9808315,9808127,etc |
| far infrared | far-IR | 13 | 5 | 1.000647 | 9808311,9808109,etc |
| point spread function | PSF | 16 | 5 | 2.000231 | 9808001,9808156,etc |
| cosmic microwave background radiation | CMB | 130 | 5 | 1.001642 | 9808031,9808270,etc |
| all sky monitor | ASM | 57 | 5 | 2.004173 | 9808332,9808301,etc |
| white dwarf | WD | 47 | 4 | 2.001186 | 9808017,9808150,etc |
| near infrared | NIR | 47 | 4 | 2.001428 | 9808024,9808168,etc |
| high resolution imager | HRI | 43 | 4 | 2.000633 | 9808208,9808041,etc |
| infrared | IR | 54 | 4 | 2.003636 | 9808282,9808104,etc |
| small magellanic cloud | SMC | 85 | 4 | 2.002768 | 9808091,9808023,etc |
| horizontal branch | HB | 126 | 4 | 2.002288 | 9808091,9808080,etc |
| low mass x ray binary | LMXB | 60 | 4 | 1.00159 | 9808303,9808217,etc |
| supernova remnant | SNR | 47 | 4 | 2.003231 | 9808041,9808164,etc |
| gamma ray bursts | GRB | 42 | 4 | 1.001046 | 9808002,9808279,etc |
| signal to noise ratio | SNR | 16 | 4 | 2.000279 | 9808206,9808258,etc |
| full width half maximum | FWHM | 14 | 4 | 1.000342 | 9808139,9808328,etc |
| intergalactic medium | IGM | 40 | 4 | 2.001075 | 9808150,9808050,etc |
| kolmogorov smirnov | KS | 22 | 3 | 1.001119 | 9808065,9808168,etc |
| big bang nucleosynthesis | BBN | 34 | 3 | 2.001935 | 9808196,9808180,etc |
| broad line region | BLR | 25 | 3 | 2.000945 | 9808166,9808236,etc |
| supernova | SN | 58 | 3 | 2.002991 | 9808313,9808150,etc |
| infrared space observatory | ISO | 51 | 3 | 2.005072 | 9808313,9808101,etc |
| x ray telescopes | XRT | 8 | 3 | 1.000125 | 9808313,9808339,etc |
| australia telescope compact array | ATCA | 33 | 3 | 1.002378 | 9808164,9808027,etc |
| sloan digital sky survey | SDSS | 74 | 3 | 2.002809 | 9808083,9808032,etc |
| field of view | FOV | 21 | 3 | 2.001648 | 9808240,9808151,etc |
| smooth particle hydrodynamics | SPH | 21 | 3 | 1.000781 | 9808094,9808185,etc |
| rossi x ray timing explorer | RXTE | 21 | 3 | 2.00082 | 9808307,9808281,etc |
| sunyaev zel'dovich | SZ | 124 | 3 | 2.008324 | 9808186,9808270,etc |
| large area detector | LAD | 6 | 3 | 1.000384 | 9808184,9808301,etc |
| burst and transient source experiment | BATSE | 42 | 3 | 2.002066 | 9808184,9808301,etc |
| color magnitude diagram | CMD | 95 | 3 | 2.000913 | 9808001,9808117,etc |
| singular isothermal sphere | SIS | 19 | 3 | 2.00029 | 9808140,9808321,etc |
| tully fisher | TF | 130 | 3 | 2.001454 | 9808158,9808287,etc |
| cosmic background explorer | COBE | 40 | 3 | 2.000291 | 9808050,9808320,etc |
| smoothed particle hydrodynamics | SPH | 8 | 3 | 1.000279 | 9808328,9808076,etc |
| quasi stellar object | QSO | 36 | 3 | 2.001067 | 9808111,9808090,etc |
| three dimensional | 3D | 23 | 3 | 1.002075 | 9808244,9808274,etc |
| cosmic ray | CR | 34 | 3 | 2.001832 | 9808279,9808104,etc |