| 1 | spectral energy distribution | SED | 400 | 29 | 2.003315 | 0008312,0008362,etc |
| 2 | active galactic nucleus | AGN | 396 | 28 | 1.003278 | 0008312,0008317,etc |
| 3 | interstellar medium | ISM | 187 | 25 | 1.002308 | 0008251,0008495,etc |
| 4 | cosmic microwave background | CMB | 325 | 24 | 2.004553 | 0008495,0008111,etc |
| 5 | initial mass function | IMF | 169 | 17 | 2.001673 | 0008095,0008441,etc |
| 6 | point spread function | PSF | 71 | 15 | 1.000803 | 0008411,0008122,etc |
| 7 | hubble space telescope | HST | 88 | 13 | 1.001198 | 0008411,0008282,etc |
| 8 | nasa/ipac extragalactic database | NED | 17 | 13 | 1.000063 | 0008437,0008126,etc |
| 9 | supernova | SN | 975 | 12 | 2.016299 | 0008076,0008473,etc |
| 10 | low mass x ray binary | LMXB | 91 | 10 | 1.00326 | 0008358,0008526,etc |
| 11 | supernova remnant | SNR | 248 | 9 | 2.003048 | 0008076,0008042,etc |
| 12 | star formation rate | SFR | 66 | 9 | 1.004587 | 0008252,0008250,etc |
| 13 | horizontal branch | HB | 137 | 9 | 2.002768 | 0008080,0008373,etc |
| 14 | signal to noise ratio | S/N | 116 | 9 | 1.000582 | 0008411,0008398,etc |
| 15 | gamma ray burst | GRB | 362 | 9 | 1.006304 | 0008473,0008177,etc |
| 16 | cold dark matter | CDM | 91 | 9 | 2.003853 | 0008350,0008188,etc |
| 17 | asymptotic giant branch | AGB | 170 | 9 | 2.005425 | 0008101,0008443,etc |
| 18 | equivalent width | EQW | 84 | 8 | 2.001405 | 0008143,0008417,etc |
| 19 | color magnitude diagram | CMD | 163 | 8 | 2.002054 | 0008080,0008282,etc |
| 20 | luminosity function | LF | 167 | 8 | 1.001736 | 0008506,0008435,etc |
| 21 | intergalactic medium | IGM | 39 | 8 | 1.000715 | 0008357,0008342,etc |
| 22 | cataclysmic variable | CV | 70 | 7 | 2.001419 | 0008455,0008506,etc |
| 23 | infrared space observatory | ISO | 126 | 7 | 2.002103 | 0008110,0008058,etc |
| 24 | advection dominated accretion flow | ADAF | 126 | 7 | 2.007615 | 0008244,0008404,etc |
| 25 | full width at half maximum | FWHM | 27 | 7 | 2.000579 | 0008373,0008012,etc |
| 26 | proportional counter array | PCA | 48 | 7 | 2.001632 | 0008526,0008361,etc |
| 27 | polycyclic aromatic hydrocarbon | PAH | 187 | 7 | 2.005462 | 0008093,0008146,etc |
| 28 | hubble deep field | HDF | 105 | 7 | 2.005441 | 0008398,0008050,etc |
| 29 | broad line region | BLR | 41 | 7 | 1.000818 | 0008006,0008482,etc |
| 30 | red giant branch | RGB | 99 | 7 | 1.001077 | 0008406,0008500,etc |
| 31 | rossi x ray timing explorer | RXTE | 48 | 7 | 1.001061 | 0008361,0008376,etc |
| 32 | very large array | VLA | 67 | 7 | 2.001696 | 0008329,0008239,etc |
| 33 | black hole | BH | 110 | 6 | 2.005916 | 0008497,0008368,etc |
| 34 | infrared | IR | 239 | 6 | 2.005241 | 0008095,0008364,etc |
| 35 | zero age main sequence | ZAMS | 32 | 6 | 1.000435 | 0008095,0008299,etc |
| 36 | large magellanic cloud | LMC | 180 | 6 | 1.006698 | 0008282,0008437,etc |
| 37 | kolmogorov smirnov | KS | 37 | 6 | 1.0009 | 0008282,0008006,etc |
| 38 | sloan digital sky survey | SDSS | 136 | 6 | 1.003236 | 0008122,0008186,etc |
| 39 | far infrared | FIR | 125 | 6 | 2.003222 | 0008250,0008050,etc |
| 40 | narrow line region | NLR | 81 | 6 | 2.002132 | 0008006,0008168,etc |
| 41 | high resolution imager | HRI | 37 | 5 | 1.000777 | 0008038,0008442,etc |
| 42 | equation of state | EOS | 29 | 5 | 2.000515 | 0008022,0008389,etc |
| 43 | white dwarf | WD | 85 | 5 | 2.00381 | 0008455,0008035,etc |
| 44 | magnetohydrodynamic | MHD | 128 | 5 | 2.00124 | 0008084,0008244,etc |
| 45 | smoothed particle hydrodynamics | SPH | 49 | 5 | 2.001435 | 0008074,0008125,etc |
| 46 | broad absorption line | BAL | 197 | 5 | 2.002041 | 0008259,0008064,etc |
| 47 | dark matter | DM | 78 | 5 | 2.001656 | 0008392,0008017,etc |
| 48 | short wavelength spectrometer | SWS | 65 | 5 | 1.001001 | 0008058,0008391,etc |
| 49 | united kingdom infrared telescope | UKIRT | 14 | 5 | 1.000067 | 0008093,0008293,etc |
| 50 | fundamental plane | F-P | 200 | 5 | 2.003695 | 0008513,0008190,etc |
| 51 | young stellar object | YSO | 32 | 5 | 2.002445 | 0008391,0008169,etc |
| 52 | signal to noise | S/N | 16 | 5 | 1.000515 | 0008402,0008417,etc |
| 53 | small magellanic cloud | SMC | 47 | 5 | 1.004662 | 0008249,0008272,etc |
| 54 | neutron star | NS | 17 | 5 | 2.000877 | 0008097,0008118,etc |
| 55 | quasi periodic oscillation | QPO | 204 | 5 | 2.007756 | 0008414,0008118,etc |
| 56 | synchrotron self compton | SSC | 29 | 4 | 2.000624 | 0008211,0008482,etc |
| 57 | very large telescope | VLT | 9 | 4 | 1.000847 | 0008080,0008506,etc |
| 58 | near infrared | NIR | 35 | 4 | 2.000902 | 0008002,0008398,etc |
| 59 | wide field planetary camera 2 | WFPC2 | 18 | 4 | 1.00049 | 0008317,0008282,etc |
| 60 | adaptive optics | AO | 64 | 4 | 1.002975 | 0008411,0008398,etc |
| 61 | particle mesh | PM | 8 | 4 | 1.000163 | 0008074,0008126,etc |
| 62 | big bang nucleosynthesis | BBN | 79 | 4 | 2.004045 | 0008495,0008134,etc |
| 63 | space telescope imaging spectrograph | STIS | 29 | 4 | 2.000587 | 0008130,0008247,etc |
| 64 | galactic center | GC | 175 | 4 | 2.004605 | 0008441,0008406,etc |
| 65 | intracluster medium | ICM | 26 | 4 | 1.000578 | 0008113,0008357,etc |
| 66 | european southern observatory | ESO | 15 | 4 | 1.000346 | 0008296,0008398,etc |
| 67 | ultra luminous infrared galaxy | ULIRG | 58 | 4 | 2.004481 | 0008398,0008359,etc |
| 68 | luminous blue variable | LBV | 63 | 4 | 2.001621 | 0008293,0008119,etc |
| 69 | ultraviolet | UV | 124 | 4 | 2.001463 | 0008203,0008417,etc |
| 70 | planetary nebula | PN | 102 | 4 | 2.002743 | 0008443,0008034,etc |
| 71 | inverse compton | IC | 65 | 4 | 1.002486 | 0008482,0008518,etc |
| 72 | very long baseline array | VLBA | 45 | 4 | 2.001655 | 0008329,0008037,etc |
| 73 | owens valley radio observatory | OVRO | 28 | 4 | 1.001154 | 0008233,0008010,etc |
| 74 | cosmic microwave background radiation | CMBR | 26 | 4 | 2.001648 | 0008107,0008057,etc |
| 75 | power density spectrum | PDS | 8 | 4 | 1.00019 | 0008414,0008118,etc |
| 76 | local thermodynamic equilibrium | LTE | 22 | 4 | 1.000183 | 0008169,0008075,etc |
| 77 | inner lindblad resonance | ILR | 25 | 4 | 2.000253 | 0008478,0008204,etc |
| 78 | fast fourier transform | FFT | 23 | 4 | 1.000531 | 0008305,0008151,etc |
| 79 | kelvin helmholtz | K-H | 33 | 3 | 2.001061 | 0008076,0008084,etc |
| 80 | pre main sequence | PMS | 43 | 3 | 2.000964 | 0008095,0008299,etc |
| 81 | rosat all sky survey | RASS | 62 | 3 | 1.001803 | 0008095,0008245,etc |
| 82 | nasa extragalactic database | NED | 4 | 3 | 1.00004 | 0008095,0008431,etc |
| 83 | japan society for promotion of science | JSPS | 3 | 3 | 1.000075 | 0008312,0008262,etc |
| 84 | monte carlo | MC | 13 | 3 | 1.000418 | 0008330,0008111,etc |
| 85 | main sequence | MS | 25 | 3 | 2.000434 | 0008506,0008373,etc |
| 86 | high energy astrophysics science archive research center | HEASARC | 6 | 3 | 1.000191 | 0008408,0008440,etc |
| 87 | hobby eberly telescope | HET | 12 | 3 | 1.000657 | 0008122,0008401,etc |
| 88 | large bright quasar survey | LBQS | 12 | 3 | 2.000327 | 0008122,0008394,etc |
| 89 | hubble deep field north | HDFN | 62 | 3 | 2.006588 | 0008181,0008247,etc |
| 90 | horizontal branch oscillation | HBO | 19 | 3 | 2.000794 | 0008358,0008361,etc |
| 91 | inverse compton scattering | ICS | 51 | 3 | 1.001604 | 0008113,0008127,etc |
| 92 | max planck institut f"ur extraterrestrische physik | MPE | 13 | 3 | 1.000513 | 0008296,0008398,etc |
| 93 | charge transfer efficiency | CTE | 19 | 3 | 1.000917 | 0008387,0008434,etc |
| 94 | sunyaev zel'dovich | SZ | 46 | 3 | 2.002948 | 0008133,0008377,etc |
| 95 | long wavelength spectrometer | LWS | 42 | 3 | 2.000714 | 0008391,0008335,etc |
| 96 | position sensitive proportional counter | PSPC | 71 | 3 | 1.002596 | 0008338,0008440,etc |
| 97 | next generation space telescope | NGST | 11 | 3 | 1.000211 | 0008004,0008271,etc |
| 98 | classical t tauri stars | CTTS | 13 | 3 | 1.000355 | 0008203,0008280,etc |
| 99 | cosmic ray | CR | 110 | 3 | 2.0027 | 0008402,0008364,etc |
| 100 | dwarf spheroidal | dSph | 75 | 3 | 2.003239 | 0008249,0008468,etc |
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