| active galactic nucleus | AGN | 1037 | 44 | 1.003887 | 0601251,0601295,etc |
| spectral energy distribution | SED | 457 | 37 | 2.002024 | 0601251,0601173,etc |
| point spread function | PSF | 234 | 34 | 2.001145 | 0601137,0601251,etc |
| cosmic microwave background | CMB | 557 | 31 | 2.005138 | 0601646,0601424,etc |
| gamma ray burst | GRBs | 1074 | 30 | 2.006492 | 0601251,0601173,etc |
| sloan digital sky survey | SDSS | 627 | 30 | 2.003939 | 0601295,0601288,etc |
| interstellar medium | ISM | 482 | 25 | 1.00458 | 0601324,0601708,etc |
| star formation rate | SFR | 284 | 21 | 1.004011 | 0601638,0601155,etc |
| initial mass function | IMF | 273 | 20 | 2.00325 | 0601582,0601297,etc |
| cold dark matter | CDM | 160 | 19 | 1.002045 | 0601149,0601155,etc |
| supernova | SN | 1075 | 18 | 1.010407 | 0601324,0601111,etc |
| hubble space telescope | HST | 132 | 18 | 1.002371 | 0601494,0601200,etc |
| nasa/ipac extragalactic database | NED | 38 | 18 | 1.000187 | 0601288,0601629,etc |
| supernova remnant | SNR | 460 | 16 | 1.006428 | 0601704,0601575,etc |
| max planck institute for astronomy | MPIA | 15 | 14 | 1.000134 | 0601288,0601346,etc |
| max planck institute for astrophysics | MPA | 14 | 14 | 1.000137 | 0601288,0601346,etc |
| main sequence | MS | 282 | 14 | 2.002061 | 0601240,0601187,etc |
| asymptotic giant branch | AGB | 246 | 12 | 2.003602 | 0601645,0601512,etc |
| advanced camera for surveys | ACS | 104 | 12 | 2.001355 | 0601488,0601403,etc |
| ultraviolet | UV | 504 | 12 | 2.005724 | 0601230,0601388,etc |
| signal to noise | S/N | 54 | 11 | 2.000375 | 0601173,0601636,etc |
| astrophysical research consortium | ARC | 15 | 11 | 1.00024 | 0601288,0601599,etc |
| near infrared | NIR | 153 | 11 | 2.001664 | 0601165,0601614,etc |
| two micron all sky survey | 2MASS | 78 | 11 | 1.001765 | 0601681,0601083,etc |
| neutron star | NS | 108 | 11 | 1.00121 | 0601302,0601187,etc |
| infrared | IR | 348 | 11 | 2.006087 | 0601409,0601105,etc |
| equation of state | EOS | 104 | 10 | 2.00256 | 0601282,0601111,etc |
| lyman break galaxy | LBG | 261 | 10 | 2.004766 | 0601251,0601295,etc |
| color magnitude diagram | CMD | 101 | 10 | 2.00169 | 0601187,0601599,etc |
| kolmogorov smirnov | KS | 37 | 10 | 2.000525 | 0601394,0601257,etc |
| black hole | BH | 252 | 10 | 2.004532 | 0601577,0601565,etc |
| large magellanic cloud | LMC | 299 | 9 | 1.006911 | 0601214,0601446,etc |
| far ultraviolet | FUV | 182 | 9 | 1.00443 | 0601588,0601584,etc |
| signal to noise ratio | S/N | 53 | 9 | 1.000974 | 0601240,0601264,etc |
| low mass x ray binary | LMXB | 58 | 9 | 2.000972 | 0601409,0601187,etc |
| red giant branch | RGB | 137 | 9 | 2.002376 | 0601187,0601599,etc |
| very large telescope | VLT | 45 | 9 | 2.000659 | 0601297,0601223,etc |
| intergalactic medium | IGM | 85 | 8 | 2.002042 | 0601295,0601620,etc |
| intracluster medium | ICM | 73 | 8 | 1.001362 | 0601180,0601382,etc |
| adaptive mesh refinement | AMR | 73 | 8 | 2.001438 | 0601233,0601519,etc |
| magnetohydrodynamic | MHD | 70 | 8 | 1.001558 | 0601623,0601231,etc |
| european southern observatory | ESO | 39 | 8 | 1.000926 | 0601297,0601510,etc |
| wolf rayet | WR | 134 | 8 | 2.006526 | 0601105,0601106,etc |
| planetary nebula | PN | 274 | 8 | 2.006999 | 0601344,0601439,etc |
| galactic center | GC | 93 | 7 | 1.00221 | 0601137,0601174,etc |
| luminosity function | LF | 263 | 7 | 2.003882 | 0601165,0601577,etc |
| smoothed particle hydrodynamics | SPH | 60 | 7 | 1.002511 | 0601155,0601642,etc |
| pre main sequence | PMS | 96 | 7 | 2.001886 | 0601240,0601624,etc |
| wilkinson microwave anisotropy probe | WMAP | 80 | 7 | 2.002809 | 0601233,0601593,etc |
| polycyclic aromatic hydrocarbon | PAH | 47 | 7 | 1.001443 | 0601361,0601692,etc |
| very large array | VLA | 135 | 7 | 2.002826 | 0601451,0601506,etc |
| young stellar object | YSO | 77 | 7 | 1.001645 | 0601077,0601419,etc |
| far infrared | FIR | 117 | 7 | 2.002393 | 0601077,0601314,etc |
| equivalent width | EW | 108 | 7 | 1.002431 | 0601506,0601671,etc |
| full width at half maximum | FWHM | 19 | 6 | 1.000108 | 0601251,0601167,etc |
| colour magnitude diagram | CMD | 33 | 6 | 2.001284 | 0601446,0601681,etc |
| brightest cluster galaxy | BCG | 35 | 6 | 2.001234 | 0601165,0601346,etc |
| star formation history | SFH | 228 | 6 | 2.005804 | 0601165,0601463,etc |
| local thermodynamic equilibrium | LTE | 252 | 6 | 1.010917 | 0601718,0601614,etc |
| giant molecular cloud | GMC | 113 | 6 | 1.00527 | 0601704,0601582,etc |
| inverse compton | IC | 109 | 6 | 2.006302 | 0601704,0601626,etc |
| cataclysmic variable | CV | 46 | 6 | 2.000629 | 0601644,0601187,etc |
| white dwarf | WD | 83 | 6 | 2.002873 | 0601644,0601614,etc |
| space telescope imaging spectrograph | STIS | 45 | 6 | 2.000556 | 0601200,0601206,etc |
| national aeronautics and space administration | NASA | 24 | 6 | 1.000339 | 0601105,0601394,etc |
| quasi periodic oscillation | QPO | 162 | 6 | 1.005339 | 0601503,0601666,etc |
| dark matter | DM | 102 | 6 | 2.003531 | 0601346,0601577,etc |
| big bang nucleosynthesis | BBN | 93 | 6 | 1.003815 | 0601333,0601299,etc |
| supermassive black hole | SMBH | 97 | 6 | 2.003405 | 0601634,0601392,etc |
| globular cluster | GC | 287 | 5 | 2.009276 | 0601645,0601187,etc |
| mid infrared | mid-IR | 155 | 5 | 2.002221 | 0601251,0601077,etc |
| small magellanic cloud | SMC | 123 | 5 | 2.001177 | 0601446,0601129,etc |
| line of sight | LOS | 137 | 5 | 1.001925 | 0601242,0601200,etc |
| zero age main sequence | ZAMS | 34 | 5 | 2.000445 | 0601718,0601543,etc |
| australia telescope compact array | ATCA | 56 | 5 | 2.001344 | 0601718,0601354,etc |
| weakly interacting massive particle | WIMP | 30 | 5 | 1.002599 | 0601568,0601249,etc |
| infrared space observatory | ISO | 16 | 5 | 1.000472 | 0601155,0601314,etc |
| broad line region | BLR | 80 | 5 | 2.004951 | 0601140,0601255,etc |
| local thermodynamical equilibrium | LTE | 37 | 5 | 1.002922 | 0601689,0601459,etc |
| chandra deep field south | CDFS | 34 | 5 | 1.001775 | 0601113,0601367,etc |
| narrow line region | NLR | 63 | 5 | 2.002255 | 0601265,0601204,etc |
| three dimensional | 3D | 65 | 5 | 1.001657 | 0601412,0601183,etc |
| local standard of rest | LSR | 70 | 5 | 2.000718 | 0601521,0601139,etc |
| rotation measure | RM | 151 | 5 | 2.005602 | 0601484,0601660,etc |
| intermediate mass black hole | IMBH | 90 | 5 | 2.003772 | 0601580,0601450,etc |
| spitzer science center | SSC | 17 | 4 | 2.000296 | 0601116,0601468,etc |
| dwarf spheroidal | dSph | 78 | 4 | 2.00135 | 0601308,0601599,etc |
| friedmann robertson walker | FRW | 17 | 4 | 1.002452 | 0601489,0601617,etc |
| synchrotron self compton | SSC | 27 | 4 | 2.001228 | 0601173,0601619,etc |
| kuiper belt object | KBO | 284 | 4 | 2.00658 | 0601618,0601257,etc |
| very long baseline array | VLBA | 36 | 4 | 2.001197 | 0601242,0601560,etc |
| mass to light | M/L | 79 | 4 | 2.001506 | 0601165,0601403,etc |
| orion nebula cluster | ONC | 74 | 4 | 2.002914 | 0601166,0601606,etc |
| midcourse space experiment | MSX | 30 | 4 | 2.000941 | 0601718,0601314,etc |
| millisecond pulsar | MSP | 101 | 4 | 2.003756 | 0601189,0601187,etc |
| two dimensional | 2D | 39 | 4 | 2.000472 | 0601302,0601193,etc |
| one dimensional | 1D | 31 | 4 | 2.000988 | 0601302,0601130,etc |
| singular isothermal ellipsoid | SIED | 20 | 4 | 1.000534 | 0601149,0601523,etc |
| radial velocity | RV | 62 | 4 | 2.007781 | 0601240,0601636,etc |
| cosmic rays | CR | 136 | 4 | 2.003944 | 0601290,0601484,etc |
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