| active galactic nucleus | AGN | 1967 | 152 | 1.456429 | 9701127,9701165,etc |
| cold dark matter | CDM | 2437 | 137 | 1.470312 | 9701138,9701177,etc |
| cosmic microwave background | CMB | 2319 | 137 | 1.776719 | 9701210,9701090,etc |
| interstellar medium | ISM | 1196 | 107 | 1.80522 | 9701109,9701235,etc |
| point spread function | PSF | 1010 | 98 | 1.67509 | 9701133,9701218,etc |
| initial mass function | IMF | 1035 | 93 | 1.345866 | 9701226,9701222,etc |
| nasa/ipac extragalactic database | NED | 111 | 76 | 1.000215 | 9701127,9701047,etc |
| hubble space telescope | HST | 958 | 76 | 1.685936 | 9701025,9701062,etc |
| spectral energy distribution | SED | 604 | 69 | 1.508971 | 9701013,9701183,etc |
| large magellanic cloud | LMC | 1189 | 64 | 1.659515 | 9702236,9702199,etc |
| gamma ray burst | GRB | 1908 | 62 | 2.00581 | 9701024,9701246,etc |
| star formation rate | SFR | 878 | 60 | 1.785917 | 9702156,9702080,etc |
| luminosity function | LF | 1324 | 56 | 1.520735 | 9701013,9701222,etc |
| horizontal branch | HB | 2058 | 51 | 1.553681 | 9701152,9701222,etc |
| color magnitude diagram | CMD | 719 | 46 | 1.698308 | 9701152,9701153,etc |
| supernova remnant | SNR | 1293 | 46 | 1.763939 | 9702121,9702150,etc |
| signal to noise ratio | S/N | 208 | 44 | 1.296294 | 9701041,9701043,etc |
| low mass x ray binary | LMXB | 465 | 42 | 1.668663 | 9702010,9702119,etc |
| position sensitive proportional counter | PSPC | 545 | 39 | 1.64259 | 9701143,9701033,etc |
| full width at half maximum | FWHM | 180 | 38 | 1.316045 | 9702225,9702222,etc |
| supernova | SN | 1508 | 37 | 1.78977 | 9703104,9703200,etc |
| intergalactic medium | IGM | 339 | 36 | 1.557588 | 9701209,9701012,etc |
| hubble deep field | HDF | 538 | 35 | 1.631571 | 9703169,9703111,etc |
| ultraviolet | UV | 1677 | 34 | 1.857216 | 9701013,9701132,etc |
| red giant branch | RGB | 541 | 34 | 1.883823 | 9701222,9701141,etc |
| asymptotic giant branch | AGB | 934 | 34 | 1.356029 | 9701141,9701042,etc |
| equivalent width | EW | 463 | 32 | 1.59526 | 9701226,9701133,etc |
| main sequence | MS | 325 | 30 | 1.801787 | 9701153,9701038,etc |
| intracluster medium | ICM | 440 | 30 | 1.701926 | 9701133,9701077,etc |
| compton gamma ray observatory | CGRO | 110 | 29 | 1.345745 | 9701236,9701181,etc |
| far infrared | FIR | 511 | 28 | 1.931079 | 9701187,9701013,etc |
| burst and transient source experiment | BATSE | 633 | 28 | 1.859178 | 9701162,9701098,etc |
| very large array | VLA | 173 | 26 | 1.539347 | 9702089,9702012,etc |
| white dwarf | WD | 320 | 24 | 1.711095 | 9701013,9701235,etc |
| all sky monitor | ASM | 239 | 24 | 1.502294 | 9701027,9701098,etc |
| near infrared | NIR | 444 | 23 | 1.871485 | 9701047,9701207,etc |
| broad line region | BLR | 306 | 23 | 1.566523 | 9701089,9701033,etc |
| quasi periodic oscillation | QPO | 605 | 23 | 1.877231 | 9702054,9702073,etc |
| kolmogorov smirnov | K-S | 99 | 23 | 1.174223 | 9702112,9702185,etc |
| rossi x ray timing explorer | RXTE | 127 | 23 | 1.087801 | 9706100,9706134,etc |
| faint object spectrograph | FOS | 246 | 21 | 1.763091 | 9702106,9702207,etc |
| low surface brightness | LSB | 744 | 20 | 1.502915 | 9701175,9701051,etc |
| william herschel telescope | WHT | 55 | 20 | 1.000392 | 9701038,9701192,etc |
| high resolution imager | HRI | 251 | 20 | 1.351568 | 9703083,9703018,etc |
| x ray background | XRB | 332 | 20 | 1.801946 | 9704117,9704147,etc |
| narrow line region | NLR | 283 | 20 | 1.601664 | 9705076,9705083,etc |
| smoothed particle hydrodynamics | SPH | 374 | 19 | 1.370052 | 9701106,9701052,etc |
| advection dominated accretion flow | ADAF | 536 | 19 | 2.00233 | 9701139,9701098,etc |
| big bang nucleosynthesis | BBN | 157 | 19 | 1.579869 | 9701138,9701160,etc |
| cosmic microwave background radiation | CMB | 214 | 19 | 2.001657 | 9702226,9702196,etc |
| inverse compton | IC | 234 | 19 | 1.317473 | 9703150,9703187,etc |
| rosat all sky survey | RASS | 219 | 19 | 1.580472 | 9704065,9704281,etc |
| equation of state | EOS | 333 | 18 | 1.391387 | 9701232,9701142,etc |
| infrared | IR | 829 | 18 | 1.561362 | 9704100,9704201,etc |
| proportional counter array | PCA | 141 | 17 | 1.883606 | 9703019,9703175,etc |
| globular cluster | GC | 1174 | 16 | 2.007808 | 9701141,9701153,etc |
| tully fisher | TF | 241 | 15 | 1.801713 | 9701155,9701244,etc |
| particle mesh | PM | 395 | 15 | 1.868037 | 9701170,9701195,etc |
| singular isothermal sphere | SIS | 107 | 15 | 1.267824 | 9701097,9701110,etc |
| black hole | BH | 463 | 15 | 1.804977 | 9701139,9701027,etc |
| broad absorption line | BAL | 366 | 15 | 1.872839 | 9702031,9702207,etc |
| cosmic background radiation | CBR | 315 | 15 | 1.867657 | 9703194,9703196,etc |
| cataclysmic variable | CV | 155 | 15 | 1.268259 | 9703015,9703016,etc |
| zero age main sequence | ZAMS | 80 | 15 | 1.467159 | 9704058,9704021,etc |
| canada france redshift survey | CFRS | 114 | 15 | 1.267344 | 9704158,9704294,etc |
| neutron star | NS | 471 | 14 | 1.860408 | 9702004,9702060,etc |
| dark matter | DM | 390 | 14 | 1.859578 | 9702236,9702047,etc |
| signal to noise | S/N | 56 | 14 | 1.000547 | 9703169,9703199,etc |
| planetary nebula | PN | 235 | 14 | 1.717509 | 9704172,9704201,etc |
| young stellar object | YSO | 157 | 14 | 1.286855 | 9705203,9705252,etc |
| local thermodynamic equilibrium | LTE | 200 | 13 | 1.234563 | 9701061,9701245,etc |
| small magellanic cloud | SMC | 364 | 13 | 1.850156 | 9705043,9705015,etc |
| fundamental plane | FP | 526 | 12 | 2.002708 | 9701025,9701155,etc |
| hopkins ultraviolet telescope | HUT | 126 | 12 | 1.667234 | 9701157,9701235,etc |
| international ultraviolet explorer | IUE | 53 | 12 | 1.583792 | 9704008,9704083,etc |
| field of view | FOV | 66 | 12 | 1.251357 | 9704297,9704007,etc |
| probability distribution function | PDF | 167 | 12 | 1.668662 | 9707009,9707312,etc |
| sunyaev zel'dovich | S-Z | 278 | 11 | 2.002225 | 9702224,9702196,etc |
| standard cdm | SCDM | 122 | 11 | 1.819095 | 9702086,9702154,etc |
| isaac newton telescope | INT | 36 | 11 | 1.182134 | 9702217,9702127,etc |
| astronomy | ASTRON | 11 | 11 | 1.000062 | 9704200,9704272,etc |
| low energy concentrator spectrometer | LECS | 192 | 11 | 1.185764 | 9706188,9706009,etc |
| sloan digital sky survey | SDSS | 90 | 11 | 1.728351 | 9706159,9706119,etc |
| wolf rayet | WR | 410 | 11 | 1.457106 | 9706235,9706122,etc |
| space telescope imaging spectrograph | STIS | 104 | 11 | 2.001841 | 9709109,9709034,etc |
| soft x ray transient | SXT | 114 | 10 | 1.002692 | 9701139,9701234,etc |
| cosmic ray | CR | 332 | 10 | 1.40443 | 9702059,9702056,etc |
| brightest cluster galaxy | BCG | 98 | 10 | 1.502511 | 9703107,9703099,etc |
| dwarf irregular | dIrr | 116 | 10 | 1.701008 | 9704031,9704104,etc |
| wide field planetary camera 2 | WFPC2 | 98 | 10 | 1.501875 | 9704212,9704012,etc |
| european southern observatory | ESO | 59 | 10 | 1.200488 | 9704191,9704083,etc |
| imaging proportional counter | IPC | 62 | 10 | 1.500803 | 9704092,9704202,etc |
| extended medium sensitivity survey | EMSS | 136 | 9 | 1.556589 | 9703018,9703176,etc |
| black hole candidate | BHC | 68 | 9 | 1.55625 | 9705108,9705130,etc |
| infrared space observatory | ISO | 89 | 9 | 1.334688 | 9706211,9706261,etc |
| colour magnitude diagram | CMD | 59 | 9 | 1.445404 | 9707076,9707139,etc |
| mixed dark matter | MDM | 49 | 9 | 1.445237 | 9707286,9707093,etc |
| james clerk maxwell telescope | JCMT | 50 | 9 | 1.000631 | 9709124,9709288,etc |
| fast fourier transform | FFT | 30 | 8 | 1.250171 | 9701195,9701113,etc |
| synchrotron self compton | SSC | 39 | 8 | 1.000865 | 9702096,9702197,etc |
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