| 1 | cosmic microwave background | CMB | 392 | 33 | 2.003942 | 0308135,0308208,etc |
| 2 | active galactic nucleus | AGN | 673 | 31 | 1.004087 | 0308168,0308371,etc |
| 3 | spectral energy distribution | SED | 227 | 29 | 2.00175 | 0308326,0308168,etc |
| 4 | interstellar medium | ISM | 260 | 24 | 1.002831 | 0308016,0308168,etc |
| 5 | nasa/ipac extragalactic database | NED | 43 | 21 | 1.000202 | 0308401,0308241,etc |
| 6 | hubble space telescope | HST | 214 | 20 | 2.001398 | 0308509,0308326,etc |
| 7 | initial mass function | IMF | 211 | 19 | 1.004745 | 0308356,0308488,etc |
| 8 | star formation rate | SFR | 379 | 19 | 2.003723 | 0308356,0308196,etc |
| 9 | gamma ray burst | GRB | 968 | 19 | 2.007044 | 0308311,0308026,etc |
| 10 | point spread function | PSF | 162 | 19 | 2.000746 | 0308420,0308469,etc |
| 11 | supernova | SN | 1149 | 18 | 2.008634 | 0308150,0308168,etc |
| 12 | supernova remnant | SNR | 366 | 16 | 2.004911 | 0308373,0308495,etc |
| 13 | color magnitude diagram | CMD | 202 | 13 | 2.002085 | 0308509,0308440,etc |
| 14 | main sequence | MS | 208 | 12 | 2.001305 | 0308429,0308469,etc |
| 15 | cold dark matter | CDM | 75 | 10 | 2.002118 | 0308208,0308272,etc |
| 16 | field of view | FoV | 61 | 10 | 2.001062 | 0308488,0308180,etc |
| 17 | low mass x ray binary | LMXB | 125 | 9 | 1.000965 | 0308536,0308020,etc |
| 18 | dark matter | DM | 127 | 9 | 1.002268 | 0308168,0308149,etc |
| 19 | near infrared | NIR | 154 | 9 | 2.001789 | 0308180,0308052,etc |
| 20 | white dwarf | WD | 443 | 9 | 2.00763 | 0308440,0308233,etc |
| 21 | sloan digital sky survey | SDSS | 224 | 9 | 1.004147 | 0308418,0308508,etc |
| 22 | luminosity function | LF | 161 | 9 | 2.005644 | 0308290,0308383,etc |
| 23 | full width at half maximum | FWHM | 25 | 8 | 1.000548 | 0308401,0308504,etc |
| 24 | broad absorption line | BAL | 666 | 8 | 2.01451 | 0308285,0308508,etc |
| 25 | young stellar object | YSO | 121 | 8 | 1.00104 | 0308180,0308039,etc |
| 26 | lyman break galaxy | LBG | 87 | 8 | 2.001612 | 0308204,0308541,etc |
| 27 | proportional counter array | PCA | 55 | 7 | 2.000596 | 0308536,0308495,etc |
| 28 | wilkinson microwave anisotropy probe | WMAP | 79 | 7 | 1.002233 | 0308208,0308149,etc |
| 29 | intergalactic medium | IGM | 227 | 7 | 1.006073 | 0308003,0308196,etc |
| 30 | signal to noise | S/N | 24 | 7 | 1.000337 | 0308150,0308048,etc |
| 31 | zero age main sequence | ZAMS | 14 | 7 | 1.000159 | 0308488,0308077,etc |
| 32 | red giant branch | RGB | 250 | 7 | 2.003437 | 0308440,0308469,etc |
| 33 | two micron all sky survey | 2MASS | 49 | 7 | 1.001204 | 0308260,0308329,etc |
| 34 | intracluster medium | ICM | 139 | 7 | 2.005915 | 0308209,0308319,etc |
| 35 | cataclysmic variable | CV | 64 | 7 | 2.001077 | 0308086,0308065,etc |
| 36 | signal to noise ratio | SNR | 59 | 7 | 2.000812 | 0308050,0308521,etc |
| 37 | very large array | VLA | 70 | 6 | 1.001547 | 0308401,0308277,etc |
| 38 | position angle | PA | 44 | 6 | 1.003914 | 0308401,0308367,etc |
| 39 | pre main sequence | PMS | 95 | 6 | 2.001741 | 0308488,0308314,etc |
| 40 | globular cluster | GC | 850 | 6 | 2.014546 | 0308263,0308050,etc |
| 41 | far infrared | FIR | 148 | 6 | 2.004086 | 0308180,0308205,etc |
| 42 | broad line region | BLR | 36 | 6 | 1.000657 | 0308005,0308430,etc |
| 43 | equation of state | EOS | 139 | 6 | 2.004703 | 0308459,0308233,etc |
| 44 | william herschel telescope | WHT | 14 | 6 | 1.000207 | 0308066,0308271,etc |
| 45 | ultraviolet | UV | 467 | 6 | 2.004785 | 0308042,0308185,etc |
| 46 | asymptotic giant branch | AGB | 93 | 6 | 2.001969 | 0308469,0308384,etc |
| 47 | ultraluminous x ray source | ULX | 232 | 6 | 2.003022 | 0308506,0308278,etc |
| 48 | wide field camera | WFC | 28 | 6 | 1.000199 | 0308009,0308510,etc |
| 49 | milky way | MW | 47 | 5 | 1.001104 | 0308356,0308250,etc |
| 50 | coronal mass ejection | CME | 204 | 5 | 1.008578 | 0308085,0308058,etc |
| 51 | large magellanic cloud | LMC | 60 | 5 | 2.0024 | 0308213,0308240,etc |
| 52 | photomultiplier | PMT | 44 | 5 | 1.003434 | 0308400,0308346,etc |
| 53 | horizontal branch | HB | 103 | 5 | 1.005057 | 0308341,0308517,etc |
| 54 | low surface brightness | LSB | 35 | 5 | 1.001069 | 0308144,0308405,etc |
| 55 | advanced ccd imaging spectrometer | ACIS | 51 | 5 | 1.002836 | 0308024,0308332,etc |
| 56 | planetary nebula | PN | 74 | 5 | 1.003786 | 0308548,0308518,etc |
| 57 | magnetohydrodynamic | MHD | 47 | 5 | 2.000989 | 0308548,0308239,etc |
| 58 | european photon imaging camera | EPIC | 16 | 4 | 1.000202 | 0308373,0308488,etc |
| 59 | nrao vla sky survey | NVSS | 112 | 4 | 1.001378 | 0308401,0308260,etc |
| 60 | new technology telescope | NTT | 17 | 4 | 2.00036 | 0308401,0308349,etc |
| 61 | general relativity | GR | 25 | 4 | 2.002108 | 0308135,0308031,etc |
| 62 | high mass x ray binary | HMXB | 65 | 4 | 1.001276 | 0308020,0308077,etc |
| 63 | colour magnitude diagram | CMD | 20 | 4 | 2.000562 | 0308488,0308500,etc |
| 64 | neutron star | NS | 49 | 4 | 1.001102 | 0308326,0308233,etc |
| 65 | early data release | EDR | 54 | 4 | 1.002054 | 0308508,0308506,etc |
| 66 | max planck institute for astronomy | MPIA | 4 | 4 | 1.000137 | 0308508,0308443,etc |
| 67 | max planck institute for astrophysics | MPA | 4 | 4 | 1.000137 | 0308508,0308443,etc |
| 68 | gamma ray bursts | GRB | 129 | 4 | 1.007601 | 0308173,0308120,etc |
| 69 | cosmic ray | CR | 220 | 4 | 1.008806 | 0308500,0308308,etc |
| 70 | cosmic x ray background | CXB | 28 | 4 | 2.000622 | 0308066,0308506,etc |
| 71 | nasa extragalactic database | NED | 8 | 4 | 1.000156 | 0308283,0308057,etc |
| 72 | ultra high energy cosmic ray | UHECR | 81 | 4 | 2.002835 | 0308257,0308365,etc |
| 73 | circumstellar medium | CSM | 23 | 4 | 2.000386 | 0308527,0308533,etc |
| 74 | rosat all sky survey | RASS | 25 | 4 | 1.000533 | 0308140,0308443,etc |
| 75 | ultra luminous infrared galaxy | ULIRG | 47 | 4 | 2.004653 | 0308198,0308101,etc |
| 76 | advanced camera for surveys | ACS | 108 | 4 | 2.000903 | 0308185,0308520,etc |
| 77 | astronomical image processing system | AIPS | 8 | 4 | 1.000258 | 0308145,0308096,etc |
| 78 | spectral energy distributions | SED | 40 | 4 | 1.000759 | 0308543,0308456,etc |
| 79 | kelvin helmholtz | K-H | 24 | 4 | 1.000906 | 0308390,0308203,etc |
| 80 | infrared space observatory | ISO | 71 | 4 | 2.00118 | 0308438,0308102,etc |
| 81 | extreme horizontal branch | EHB | 68 | 3 | 2.006009 | 0308509,0308440,etc |
| 82 | space telescope imaging spectrograph | STIS | 5 | 3 | 1.000608 | 0308509,0308243,etc |
| 83 | probability distribution function | PDF | 41 | 3 | 2.001657 | 0308003,0308472,etc |
| 84 | line of sight | LOS | 14 | 3 | 2.001113 | 0308003,0308058,etc |
| 85 | back illuminated | BI | 9 | 3 | 1.000886 | 0308150,0308091,etc |
| 86 | first ionization potential | FIP | 9 | 3 | 1.000439 | 0308058,0308229,etc |
| 87 | extremely metal poor | EMP | 119 | 3 | 2.003255 | 0308016,0308029,etc |
| 88 | anglo australian telescope | AAT | 16 | 3 | 2.001872 | 0308213,0308533,etc |
| 89 | position sensitive proportional counter | PSPC | 55 | 3 | 2.001015 | 0308488,0308495,etc |
| 90 | cerro tololo interamerican observatory | CTIO | 10 | 3 | 1.000245 | 0308488,0308034,etc |
| 91 | dark energy | DE | 73 | 3 | 2.004698 | 0308149,0308183,etc |
| 92 | dwarf spheroidal | dSph | 10 | 3 | 1.000277 | 0308241,0308348,etc |
| 93 | big bang nucleosynthesis | BBN | 93 | 3 | 1.006734 | 0308418,0308511,etc |
| 94 | european space agency | ESA | 8 | 3 | 1.000724 | 0308418,0308300,etc |
| 95 | two degree field galaxy redshift survey | 2dFGRS | 3 | 3 | 1.000052 | 0308418,0308446,etc |
| 96 | astrophysical research consortium | ARC | 3 | 3 | 1.00014 | 0308508,0308443,etc |
| 97 | integral burst alert system | IBAS | 72 | 3 | 2.005403 | 0308173,0308346,etc |
| 98 | integral science data centre | ISDC | 70 | 3 | 2.004183 | 0308173,0308245,etc |
| 99 | ultra high energy cosmic rays | UHECR | 23 | 3 | 2.003454 | 0308532,0308399,etc |
| 100 | black hole | BH | 82 | 3 | 2.000503 | 0308539,0308040,etc |
|