| 1 | spectral energy distribution | SED | 193 | 16 | 1.001845 | 0004028,0004026,etc |
| 2 | point spread function | PSF | 86 | 15 | 1.001202 | 0004338,0004026,etc |
| 3 | nasa/ipac extragalactic database | NED | 18 | 15 | 1.000075 | 0004155,0004146,etc |
| 4 | star formation rate | SFR | 253 | 14 | 2.005003 | 0004072,0004028,etc |
| 5 | initial mass function | IMF | 172 | 14 | 2.005643 | 0004109,0004333,etc |
| 6 | cosmic microwave background | CMB | 115 | 14 | 1.002065 | 0004282,0004322,etc |
| 7 | active galactic nucleus | AGN | 115 | 13 | 2.001778 | 0004047,0004074,etc |
| 8 | gamma ray burst | GRB | 331 | 12 | 2.010838 | 0004379,0004360,etc |
| 9 | advection dominated accretion flow | ADAF | 183 | 12 | 2.003785 | 0004047,0004017,etc |
| 10 | sloan digital sky survey | SDSS | 162 | 11 | 2.003342 | 0004304,0004133,etc |
| 11 | hubble space telescope | HST | 110 | 11 | 1.001387 | 0004319,0004223,etc |
| 12 | interstellar medium | ISM | 177 | 10 | 2.004989 | 0004030,0004333,etc |
| 13 | hubble deep field | HDF | 448 | 9 | 1.00415 | 0004028,0004201,etc |
| 14 | cold dark matter | CDM | 147 | 9 | 2.006011 | 0004282,0004309,etc |
| 15 | large magellanic cloud | LMC | 175 | 9 | 2.003988 | 0004252,0004137,etc |
| 16 | supernova remnant | SNR | 154 | 9 | 1.006437 | 0004330,0004280,etc |
| 17 | supernova | SN | 322 | 8 | 2.007314 | 0004349,0004333,etc |
| 18 | low mass x ray binary | LMXB | 65 | 7 | 1.000945 | 0004168,0004232,etc |
| 19 | signal to noise | S/N | 63 | 7 | 1.003293 | 0004373,0004146,etc |
| 20 | proportional counter array | PCA | 45 | 7 | 2.001529 | 0004232,0004297,etc |
| 21 | advanced ccd imaging spectrometer | ACIS | 107 | 7 | 2.002222 | 0004177,0004309,etc |
| 22 | color magnitude diagram | CMD | 35 | 6 | 1.001467 | 0004338,0004371,etc |
| 23 | near infrared | NIR | 73 | 6 | 1.002151 | 0004338,0004108,etc |
| 24 | quasi periodic oscillation | QPO | 145 | 6 | 2.008775 | 0004168,0004017,etc |
| 25 | burst and transient source experiment | BATSE | 38 | 6 | 2.002633 | 0004232,0004020,etc |
| 26 | luminosity function | LF | 56 | 6 | 1.001162 | 0004026,0004333,etc |
| 27 | space telescope imaging spectrograph | STIS | 103 | 6 | 2.002904 | 0004047,0004319,etc |
| 28 | full width at half maximum | FWHM | 25 | 6 | 2.000494 | 0004047,0004404,etc |
| 29 | very large array | VLA | 88 | 6 | 2.001337 | 0004340,0004273,etc |
| 30 | signal to noise ratio | S/N | 40 | 5 | 1.003789 | 0004220,0004373,etc |
| 31 | william herschel telescope | WHT | 20 | 5 | 1.000544 | 0004235,0004206,etc |
| 32 | cataclysmic variable | CV | 105 | 5 | 1.002865 | 0004017,0004414,etc |
| 33 | ultraviolet | UV | 132 | 5 | 2.004782 | 0004060,0004319,etc |
| 34 | equivalent width | EW | 20 | 5 | 1.000346 | 0004339,0004074,etc |
| 35 | white dwarf | WD | 110 | 5 | 1.004301 | 0004319,0004406,etc |
| 36 | low surface brightness | LSB | 9 | 5 | 1.000466 | 0004319,0004150,etc |
| 37 | horizontal branch | HB | 166 | 5 | 1.006365 | 0004271,0004346,etc |
| 38 | asymptotic giant branch | AGB | 72 | 4 | 1.001485 | 0004338,0004367,etc |
| 39 | intergalactic medium | IGM | 85 | 4 | 1.003589 | 0004155,0004349,etc |
| 40 | full width half maximum | FWHM | 4 | 4 | 1.000246 | 0004232,0004297,etc |
| 41 | image reduction and analysis facility | IRAF | 11 | 4 | 1.000111 | 0004040,0004026,etc |
| 42 | canada france hawaii telescope | CFHT | 56 | 4 | 1.002418 | 0004026,0004358,etc |
| 43 | quantum efficiency | QE | 22 | 4 | 2.001274 | 0004026,0004367,etc |
| 44 | small magellanic cloud | SMC | 17 | 4 | 1.000342 | 0004308,0004243,etc |
| 45 | far infrared | FIR | 50 | 4 | 2.00076 | 0004216,0004175,etc |
| 46 | large scale structure | LSS | 25 | 4 | 1.001638 | 0004213,0004341,etc |
| 47 | main sequence | MS | 141 | 4 | 2.003668 | 0004325,0004110,etc |
| 48 | high resolution imager | HRI | 37 | 4 | 1.001186 | 0004339,0004263,etc |
| 49 | black hole | BH | 130 | 4 | 2.002469 | 0004214,0004165,etc |
| 50 | rossi x ray timing explorer | RXTE | 32 | 4 | 2.003227 | 0004020,0004018,etc |
| 51 | compton gamma ray observatory | CGRO | 6 | 4 | 1.000455 | 0004020,0004127,etc |
| 52 | wolf rayet | WR | 51 | 4 | 1.000915 | 0004020,0004383,etc |
| 53 | equation of state | EOS | 49 | 4 | 2.001469 | 0004411,0004310,etc |
| 54 | local thermodynamic equilibrium | LTE | 42 | 4 | 2.003253 | 0004157,0004081,etc |
| 55 | field of view | FOV | 50 | 4 | 2.001779 | 0004259,0004082,etc |
| 56 | wide field planetary camera 2 | WFPC2 | 12 | 4 | 1.000173 | 0004259,0004147,etc |
| 57 | michelson doppler imager | MDI | 26 | 3 | 2.001464 | 0004335,0004082,etc |
| 58 | blue horizontal branch | BHB | 162 | 3 | 2.004493 | 0004109,0004128,etc |
| 59 | new technology telescope | NTT | 7 | 3 | 1.000181 | 0004040,0004213,etc |
| 60 | european southern observatory | ESO | 12 | 3 | 1.000268 | 0004040,0004020,etc |
| 61 | ministry for university and research | MURST | 4 | 3 | 1.000032 | 0004040,0004118,etc |
| 62 | standard cold dark matter | SCDM | 9 | 3 | 1.000481 | 0004349,0004319,etc |
| 63 | high resolution camera | HRC | 43 | 3 | 2.000887 | 0004177,0004127,etc |
| 64 | high resolution mirror assembly | HRMA | 39 | 3 | 2.002242 | 0004177,0004127,etc |
| 65 | intracluster medium | ICM | 119 | 3 | 2.000931 | 0004309,0004333,etc |
| 66 | soft x ray transient | SXT | 21 | 3 | 2.001131 | 0004344,0004180,etc |
| 67 | giant molecular cloud | GMC | 17 | 3 | 2.000491 | 0004119,0004391,etc |
| 68 | red giant branch | RGB | 38 | 3 | 1.001044 | 0004367,0004346,etc |
| 69 | radial velocity | RV | 31 | 3 | 2.000833 | 0004339,0004110,etc |
| 70 | all sky monitor | ASM | 16 | 3 | 2.000775 | 0004020,0004223,etc |
| 71 | pure luminosity evolution | PLE | 49 | 3 | 1.001357 | 0004319,0004264,etc |
| 72 | probability distribution function | PDF | 67 | 3 | 2.001776 | 0004288,0004087,etc |
| 73 | seyfert | Sy | 52 | 3 | 2.004442 | 0004108,0004301,etc |
| 74 | australia telescope compact array | ATCA | 19 | 3 | 2.00061 | 0004330,0004039,etc |
| 75 | inverse compton | IC | 37 | 3 | 2.000982 | 0004280,0004355,etc |
| 76 | south african astronomical observatory | SAAO | 9 | 3 | 1.000322 | 0004243,0004107,etc |
| 77 | two degree field | 2DF | 8 | 3 | 1.000344 | 0004271,0004341,etc |
| 78 | friedmann robertson walker | FRW | 3 | 3 | 1.000165 | 0004196,0004138,etc |
| 79 | charge coupled device | CCD | 32 | 3 | 2.000476 | 0004127,0004117,etc |
| 80 | cosmic microwave background radiation | CMB | 7 | 3 | 1.000711 | 0004303,0004263,etc |
| 81 | black hole candidate | BHC | 17 | 3 | 1.001772 | 0004211,0004236,etc |
| 82 | smoothed particle hydrodynamics | SPH | 23 | 3 | 1.001044 | 0004240,0004159,etc |
| 83 | adaptive optics | AO | 55 | 3 | 2.001776 | 0004174,0004065,etc |