| cosmic microwave background | CMB | 5634 | 335 | 1.776866 | 0101112,0101333,etc |
| active galactic nucleus | AGN | 4977 | 328 | 1.777898 | 0101075,0101313,etc |
| spectral energy distribution | SED | 3045 | 281 | 1.471796 | 0101117,0101555,etc |
| interstellar medium | ISM | 2676 | 271 | 1.474316 | 0101281,0101350,etc |
| point spread function | PSF | 2266 | 271 | 1.17123 | 0101107,0101213,etc |
| nasa/ipac extragalactic database | NED | 654 | 243 | 1.000774 | 0101003,0101570,etc |
| cold dark matter | CDM | 2862 | 234 | 1.832741 | 0101127,0101067,etc |
| initial mass function | IMF | 2219 | 202 | 1.4937 | 0101541,0101534,etc |
| star formation rate | SFR | 2408 | 172 | 1.503287 | 0101319,0101534,etc |
| gamma ray burst | GRB | 6379 | 158 | 1.893836 | 0101163,0101234,etc |
| supernova remnant | SNR | 2780 | 148 | 1.585795 | 0101115,0101273,etc |
| hubble space telescope | HST | 1258 | 141 | 1.639293 | 0101213,0101200,etc |
| low mass x ray binary | LMXB | 1257 | 126 | 1.660825 | 0101156,0101475,etc |
| luminosity function | LF | 2276 | 125 | 1.802855 | 0101541,0101217,etc |
| supernova | SN | 6616 | 125 | 1.961132 | 0101281,0101534,etc |
| very large array | VLA | 665 | 118 | 1.627957 | 0101526,0101230,etc |
| sloan digital sky survey | SDSS | 2368 | 114 | 1.52162 | 0101524,0101442,etc |
| asymptotic giant branch | AGB | 2002 | 108 | 1.382425 | 0101374,0101107,etc |
| equivalent width | EW | 1447 | 107 | 1.890347 | 0101079,0101540,etc |
| color magnitude diagram | CMD | 1776 | 107 | 1.525438 | 0101217,0101135,etc |
| intergalactic medium | IGM | 1573 | 106 | 1.738993 | 0101517,0101005,etc |
| full width at half maximum | FWHM | 423 | 97 | 1.505844 | 0101486,0101340,etc |
| signal to noise ratio | SNR | 606 | 96 | 1.323864 | 0101336,0101217,etc |
| red giant branch | RGB | 1791 | 94 | 1.70543 | 0101200,0101436,etc |
| near infrared | NIR | 947 | 88 | 1.706083 | 0101242,0101464,etc |
| neutron star | NS | 2496 | 87 | 1.728649 | 0101031,0101138,etc |
| cataclysmic variable | CV | 1169 | 87 | 1.395017 | 0101201,0101093,etc |
| large magellanic cloud | LMC | 1949 | 86 | 1.922873 | 0101273,0101107,etc |
| main sequence | MS | 1115 | 76 | 1.765196 | 0101200,0101456,etc |
| far infrared | FIR | 1268 | 76 | 1.700188 | 0101158,0101114,etc |
| horizontal branch | HB | 2562 | 71 | 1.809445 | 0101200,0101518,etc |
| black hole | BH | 2204 | 68 | 1.710636 | 0101174,0101203,etc |
| white dwarf | WD | 1829 | 68 | 1.666155 | 0101520,0101021,etc |
| intracluster medium | ICM | 837 | 67 | 1.628533 | 0101158,0101114,etc |
| proportional counter array | PCA | 468 | 66 | 1.592124 | 0101459,0101540,etc |
| ultraviolet | UV | 1520 | 66 | 1.699372 | 0101027,0101167,etc |
| equation of state | EQS | 831 | 65 | 1.463817 | 0101514,0101267,etc |
| space telescope imaging spectrograph | STIS | 740 | 65 | 1.694298 | 0101548,0101307,etc |
| infrared | IR | 1646 | 65 | 2.003269 | 0101350,0101555,etc |
| big bang nucleosynthesis | BBN | 835 | 64 | 1.42495 | 0101524,0101236,etc |
| all sky monitor | ASM | 549 | 63 | 1.731777 | 0101452,0101045,etc |
| inverse compton | IC | 1068 | 62 | 1.905215 | 0101145,0101301,etc |
| advanced ccd imaging spectrometer | ACIS | 564 | 60 | 1.501232 | 0101444,0101494,etc |
| globular cluster | GC | 3442 | 60 | 2.009854 | 0102374,0102480,etc |
| broad line region | BLR | 802 | 59 | 1.425915 | 0101117,0101037,etc |
| kolmogorov smirnov | K-S | 285 | 59 | 1.119185 | 0101486,0101155,etc |
| field of view | FOV | 328 | 58 | 1.311475 | 0101281,0101054,etc |
| quasi periodic oscillation | QPO | 1602 | 57 | 1.286082 | 0101201,0101393,etc |
| planetary nebula | PN | 2134 | 56 | 1.756355 | 0101125,0101477,etc |
| low surface brightness | LSB | 906 | 53 | 1.324447 | 0101135,0101276,etc |
| advection dominated accretion flow | ADAF | 559 | 53 | 1.341553 | 0101295,0101017,etc |
| signal to noise | S/N | 187 | 52 | 1.327213 | 0101032,0101153,etc |
| australia telescope compact array | ATCA | 272 | 52 | 1.462614 | 0101385,0101506,etc |
| cosmic microwave background radiation | CMBR | 579 | 50 | 1.282169 | 0101157,0101060,etc |
| infrared space observatory | ISO | 654 | 49 | 1.675676 | 0101497,0101185,etc |
| dark matter | DM | 982 | 49 | 1.820108 | 0101174,0101317,etc |
| hubble deep field | HDF | 469 | 46 | 1.415224 | 0101340,0101248,etc |
| zero age main sequence | ZAMS | 279 | 45 | 1.534232 | 0101047,0101358,etc |
| star formation | SF | 1299 | 45 | 1.71563 | 0102025,0102323,etc |
| magnetohydrodynamic | MHD | 527 | 43 | 1.583282 | 0101116,0101168,etc |
| sunyaev zel'dovich | SZ | 1607 | 43 | 1.654796 | 0101418,0101529,etc |
| broad absorption line | BAL | 892 | 42 | 1.625799 | 0102410,0102427,etc |
| probability distribution function | PDF | 668 | 41 | 1.564158 | 0101112,0101333,etc |
| very long baseline array | VLBA | 374 | 41 | 1.635734 | 0101328,0101570,etc |
| synchrotron self compton | SSC | 340 | 40 | 1.701605 | 0101382,0101422,etc |
| wolf rayet | WR | 862 | 40 | 1.603798 | 0102228,0102383,etc |
| pre main sequence | PMS | 573 | 40 | 1.751651 | 0102288,0102326,etc |
| james clerk maxwell telescope | JCMT | 196 | 39 | 1.538871 | 0101340,0101526,etc |
| rossi x ray timing explorer | RXTE | 309 | 39 | 1.386125 | 0101346,0101057,etc |
| small magellanic cloud | SMC | 693 | 39 | 1.464073 | 0101322,0101509,etc |
| max planck institute for astrophysics | MPA | 43 | 39 | 1.000218 | 0105401,0105138,etc |
| high resolution imager | HRI | 431 | 38 | 1.765147 | 0101437,0101410,etc |
| william herschel telescope | WHT | 154 | 38 | 1.000359 | 0101213,0101208,etc |
| astrophysical research consortium | ARC | 55 | 38 | 1.000146 | 0103029,0103228,etc |
| ultraluminous infrared galaxy | ULIG | 1105 | 37 | 1.949059 | 0101185,0101289,etc |
| rosat all sky survey | RASS | 195 | 37 | 1.109256 | 0101410,0101525,etc |
| max planck institute for astronomy | MPIA | 46 | 37 | 1.000134 | 0105401,0105138,etc |
| position sensitive proportional counter | PSPC | 478 | 35 | 1.572999 | 0101156,0101410,etc |
| colour magnitude diagram | CMD | 650 | 35 | 1.687333 | 0101541,0101107,etc |
| two micron all sky survey | 2MASS | 801 | 35 | 1.917773 | 0101372,0101243,etc |
| giant molecular cloud | GMC | 418 | 35 | 1.77255 | 0101464,0101482,etc |
| anomalous x ray pulsar | AXP | 810 | 35 | 1.833629 | 0102478,0102049,etc |
| local thermodynamic equilibrium | LTE | 220 | 34 | 1.412242 | 0101265,0101518,etc |
| new technology telescope | NTT | 140 | 34 | 1.382895 | 0101125,0101450,etc |
| lyman break galaxy | LBG | 1137 | 34 | 1.739341 | 0102337,0102436,etc |
| adaptive optics | AO | 357 | 33 | 1.54872 | 0101217,0101015,etc |
| smoothed particle hydrodynamics | SPH | 373 | 33 | 1.304916 | 0101296,0101277,etc |
| position angle | PA | 377 | 33 | 1.758942 | 0102292,0102370,etc |
| cosmic ray | CR | 825 | 33 | 1.640047 | 0102374,0102266,etc |
| large scale structure | LSS | 210 | 33 | 1.334889 | 0102236,0102138,etc |
| wide field camera | WFC | 192 | 33 | 1.33486 | 0102369,0102080,etc |
| united kingdom infrared telescope | UKIRT | 164 | 32 | 1.09432 | 0101497,0101463,etc |
| intra cluster medium | ICM | 354 | 31 | 1.937606 | 0101418,0101060,etc |
| wide field planetary camera 2 | WFPC2 | 341 | 31 | 1.710795 | 0102214,0102502,etc |
| dwarf spheroidal | dSph | 371 | 30 | 1.601749 | 0101456,0101276,etc |
| nordic optical telescope | NOT | 132 | 30 | 1.100618 | 0101425,0101408,etc |
| young stellar object | YSO | 332 | 30 | 1.168134 | 0103483,0103482,etc |
| local standard of rest | LSR | 100 | 29 | 1.069524 | 0101385,0101487,etc |
| narrow line region | NLR | 270 | 29 | 1.726486 | 0101038,0101019,etc |
| x ray background | XRB | 463 | 29 | 1.933996 | 0102306,0102084,etc |
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